parameter-framework: add shrinked version of boost ASIO

Boost ASIO is a dependancy of Parameter framework v3.2.4.
As only used by PFW, as not provided by AOSP and as it is a quite huge
library, this patch adds the dependancy within PFW folder as a shrinked
version.

Bug: 22887211

Change-Id: Ie47b8cda7616214e06d2464fbb441abce367e7d4
Signed-off-by: François Gaffie <francois.gaffie@intel.com>

153 files changed, 28102 insertions, 0 deletions

diff --git a/asio-1.10.6/include/asio/async_result.hpp b/asio-1.10.6/include/asio/async_result.hpp
new file mode 100644
index 0000000..760ff14
--- /dev/null
+++ b/asio-1.10.6/include/asio/async_result.hpp
@@ -0,0 +1,81 @@
+//
+// async_result.hpp
+// ~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_ASYNC_RESULT_HPP
+#define ASIO_ASYNC_RESULT_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/handler_type.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// An interface for customising the behaviour of an initiating function.
+/**
+ * This template may be specialised for user-defined handler types.
+ */
+template <typename Handler>
+class async_result
+{
+public:
+  /// The return type of the initiating function.
+  typedef void type;
+
+  /// Construct an async result from a given handler.
+  /**
+   * When using a specalised async_result, the constructor has an opportunity
+   * to initialise some state associated with the handler, which is then
+   * returned from the initiating function.
+   */
+  explicit async_result(Handler&)
+  {
+  }
+
+  /// Obtain the value to be returned from the initiating function.
+  type get()
+  {
+  }
+};
+
+namespace detail {
+
+// Helper template to deduce the true type of a handler, capture a local copy
+// of the handler, and then create an async_result for the handler.
+template <typename Handler, typename Signature>
+struct async_result_init
+{
+  explicit async_result_init(ASIO_MOVE_ARG(Handler) orig_handler)
+    : handler(ASIO_MOVE_CAST(Handler)(orig_handler)),
+      result(handler)
+  {
+  }
+
+  typename handler_type<Handler, Signature>::type handler;
+  async_result<typename handler_type<Handler, Signature>::type> result;
+};
+
+template <typename Handler, typename Signature>
+struct async_result_type_helper
+{
+  typedef typename async_result<
+      typename handler_type<Handler, Signature>::type
+    >::type type;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# define ASIO_INITFN_RESULT_TYPE(h, sig)    typename ::asio::async_result<      typename ::asio::handler_type<h, sig>::type>::type
+
+#endif // ASIO_ASYNC_RESULT_HPP
diff --git a/asio-1.10.6/include/asio/basic_io_object.hpp b/asio-1.10.6/include/asio/basic_io_object.hpp
new file mode 100644
index 0000000..21a4882
--- /dev/null
+++ b/asio-1.10.6/include/asio/basic_io_object.hpp
@@ -0,0 +1,208 @@
+//
+// basic_io_object.hpp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_BASIC_IO_OBJECT_HPP
+#define ASIO_BASIC_IO_OBJECT_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/io_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+namespace detail
+{
+  // Type trait used to determine whether a service supports move.
+  template <typename IoObjectService>
+  class service_has_move
+  {
+  private:
+    typedef IoObjectService service_type;
+    typedef typename service_type::implementation_type implementation_type;
+
+    template <typename T, typename U>
+    static auto eval(T* t, U* u) -> decltype(t->move_construct(*u, *u), char());
+    static char (&eval(...))[2];
+
+  public:
+    static const bool value =
+      sizeof(service_has_move::eval(
+        static_cast<service_type*>(0),
+        static_cast<implementation_type*>(0))) == 1;
+  };
+}
+
+/// Base class for all I/O objects.
+/**
+ * @note All I/O objects are non-copyable. However, when using C++0x, certain
+ * I/O objects do support move construction and move assignment.
+ */
+template <typename IoObjectService,
+    bool Movable = detail::service_has_move<IoObjectService>::value>
+class basic_io_object
+{
+public:
+  /// The type of the service that will be used to provide I/O operations.
+  typedef IoObjectService service_type;
+
+  /// The underlying implementation type of I/O object.
+  typedef typename service_type::implementation_type implementation_type;
+
+  /// Get the io_service associated with the object.
+  /**
+   * This function may be used to obtain the io_service object that the I/O
+   * object uses to dispatch handlers for asynchronous operations.
+   *
+   * @return A reference to the io_service object that the I/O object will use
+   * to dispatch handlers. Ownership is not transferred to the caller.
+   */
+  asio::io_service& get_io_service()
+  {
+    return service.get_io_service();
+  }
+
+protected:
+  /// Construct a basic_io_object.
+  /**
+   * Performs:
+   * @code get_service().construct(get_implementation()); @endcode
+   */
+  explicit basic_io_object(asio::io_service& io_service)
+    : service(asio::use_service<IoObjectService>(io_service))
+  {
+    service.construct(implementation);
+  }
+
+
+  /// Protected destructor to prevent deletion through this type.
+  /**
+   * Performs:
+   * @code get_service().destroy(get_implementation()); @endcode
+   */
+  ~basic_io_object()
+  {
+    service.destroy(implementation);
+  }
+
+  /// Get the service associated with the I/O object.
+  service_type& get_service()
+  {
+    return service;
+  }
+
+  /// Get the service associated with the I/O object.
+  const service_type& get_service() const
+  {
+    return service;
+  }
+
+  /// (Deprecated: Use get_service().) The service associated with the I/O
+  /// object.
+  /**
+   * @note Available only for services that do not support movability.
+   */
+  service_type& service;
+
+  /// Get the underlying implementation of the I/O object.
+  implementation_type& get_implementation()
+  {
+    return implementation;
+  }
+
+  /// Get the underlying implementation of the I/O object.
+  const implementation_type& get_implementation() const
+  {
+    return implementation;
+  }
+
+  /// (Deprecated: Use get_implementation().) The underlying implementation of
+  /// the I/O object.
+  implementation_type implementation;
+
+private:
+  basic_io_object(const basic_io_object&);
+  basic_io_object& operator=(const basic_io_object&);
+};
+
+// Specialisation for movable objects.
+template <typename IoObjectService>
+class basic_io_object<IoObjectService, true>
+{
+public:
+  typedef IoObjectService service_type;
+  typedef typename service_type::implementation_type implementation_type;
+
+  asio::io_service& get_io_service()
+  {
+    return service_->get_io_service();
+  }
+
+protected:
+  explicit basic_io_object(asio::io_service& io_service)
+    : service_(&asio::use_service<IoObjectService>(io_service))
+  {
+    service_->construct(implementation);
+  }
+
+  basic_io_object(basic_io_object&& other)
+    : service_(&other.get_service())
+  {
+    service_->move_construct(implementation, other.implementation);
+  }
+
+  ~basic_io_object()
+  {
+    service_->destroy(implementation);
+  }
+
+  basic_io_object& operator=(basic_io_object&& other)
+  {
+    service_->move_assign(implementation,
+        *other.service_, other.implementation);
+    service_ = other.service_;
+    return *this;
+  }
+
+  service_type& get_service()
+  {
+    return *service_;
+  }
+
+  const service_type& get_service() const
+  {
+    return *service_;
+  }
+
+  implementation_type& get_implementation()
+  {
+    return implementation;
+  }
+
+  const implementation_type& get_implementation() const
+  {
+    return implementation;
+  }
+
+  implementation_type implementation;
+
+private:
+  basic_io_object(const basic_io_object&);
+  void operator=(const basic_io_object&);
+
+  IoObjectService* service_;
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_BASIC_IO_OBJECT_HPP
diff --git a/asio-1.10.6/include/asio/basic_socket.hpp b/asio-1.10.6/include/asio/basic_socket.hpp
new file mode 100644
index 0000000..242929b
--- /dev/null
+++ b/asio-1.10.6/include/asio/basic_socket.hpp
@@ -0,0 +1,1499 @@
+//
+// basic_socket.hpp
+// ~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_BASIC_SOCKET_HPP
+#define ASIO_BASIC_SOCKET_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/async_result.hpp"
+#include "asio/basic_io_object.hpp"
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/detail/type_traits.hpp"
+#include "asio/error.hpp"
+#include "asio/socket_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Provides socket functionality.
+/**
+ * The basic_socket class template provides functionality that is common to both
+ * stream-oriented and datagram-oriented sockets.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+template <typename Protocol, typename SocketService>
+class basic_socket
+  : public basic_io_object<SocketService>,
+    public socket_base
+{
+public:
+  /// (Deprecated: Use native_handle_type.) The native representation of a
+  /// socket.
+  typedef typename SocketService::native_handle_type native_type;
+
+  /// The native representation of a socket.
+  typedef typename SocketService::native_handle_type native_handle_type;
+
+  /// The protocol type.
+  typedef Protocol protocol_type;
+
+  /// The endpoint type.
+  typedef typename Protocol::endpoint endpoint_type;
+
+  /// A basic_socket is always the lowest layer.
+  typedef basic_socket<Protocol, SocketService> lowest_layer_type;
+
+  /// Construct a basic_socket without opening it.
+  /**
+   * This constructor creates a socket without opening it.
+   *
+   * @param io_service The io_service object that the socket will use to
+   * dispatch handlers for any asynchronous operations performed on the socket.
+   */
+  explicit basic_socket(asio::io_service& io_service)
+    : basic_io_object<SocketService>(io_service)
+  {
+  }
+
+  /// Construct and open a basic_socket.
+  /**
+   * This constructor creates and opens a socket.
+   *
+   * @param io_service The io_service object that the socket will use to
+   * dispatch handlers for any asynchronous operations performed on the socket.
+   *
+   * @param protocol An object specifying protocol parameters to be used.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_socket(asio::io_service& io_service,
+      const protocol_type& protocol)
+    : basic_io_object<SocketService>(io_service)
+  {
+    asio::error_code ec;
+    this->get_service().open(this->get_implementation(), protocol, ec);
+    asio::detail::throw_error(ec, "open");
+  }
+
+  /// Construct a basic_socket, opening it and binding it to the given local
+  /// endpoint.
+  /**
+   * This constructor creates a socket and automatically opens it bound to the
+   * specified endpoint on the local machine. The protocol used is the protocol
+   * associated with the given endpoint.
+   *
+   * @param io_service The io_service object that the socket will use to
+   * dispatch handlers for any asynchronous operations performed on the socket.
+   *
+   * @param endpoint An endpoint on the local machine to which the socket will
+   * be bound.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_socket(asio::io_service& io_service,
+      const endpoint_type& endpoint)
+    : basic_io_object<SocketService>(io_service)
+  {
+    asio::error_code ec;
+    const protocol_type protocol = endpoint.protocol();
+    this->get_service().open(this->get_implementation(), protocol, ec);
+    asio::detail::throw_error(ec, "open");
+    this->get_service().bind(this->get_implementation(), endpoint, ec);
+    asio::detail::throw_error(ec, "bind");
+  }
+
+  /// Construct a basic_socket on an existing native socket.
+  /**
+   * This constructor creates a socket object to hold an existing native socket.
+   *
+   * @param io_service The io_service object that the socket will use to
+   * dispatch handlers for any asynchronous operations performed on the socket.
+   *
+   * @param protocol An object specifying protocol parameters to be used.
+   *
+   * @param native_socket A native socket.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_socket(asio::io_service& io_service,
+      const protocol_type& protocol, const native_handle_type& native_socket)
+    : basic_io_object<SocketService>(io_service)
+  {
+    asio::error_code ec;
+    this->get_service().assign(this->get_implementation(),
+        protocol, native_socket, ec);
+    asio::detail::throw_error(ec, "assign");
+  }
+
+  /// Move-construct a basic_socket from another.
+  /**
+   * This constructor moves a socket from one object to another.
+   *
+   * @param other The other basic_socket object from which the move will
+   * occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_socket(io_service&) constructor.
+   */
+  basic_socket(basic_socket&& other)
+    : basic_io_object<SocketService>(
+        ASIO_MOVE_CAST(basic_socket)(other))
+  {
+  }
+
+  /// Move-assign a basic_socket from another.
+  /**
+   * This assignment operator moves a socket from one object to another.
+   *
+   * @param other The other basic_socket object from which the move will
+   * occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_socket(io_service&) constructor.
+   */
+  basic_socket& operator=(basic_socket&& other)
+  {
+    basic_io_object<SocketService>::operator=(
+        ASIO_MOVE_CAST(basic_socket)(other));
+    return *this;
+  }
+
+  // All sockets have access to each other's implementations.
+  template <typename Protocol1, typename SocketService1>
+  friend class basic_socket;
+
+  /// Move-construct a basic_socket from a socket of another protocol type.
+  /**
+   * This constructor moves a socket from one object to another.
+   *
+   * @param other The other basic_socket object from which the move will
+   * occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_socket(io_service&) constructor.
+   */
+  template <typename Protocol1, typename SocketService1>
+  basic_socket(basic_socket<Protocol1, SocketService1>&& other,
+      typename enable_if<is_convertible<Protocol1, Protocol>::value>::type* = 0)
+    : basic_io_object<SocketService>(other.get_io_service())
+  {
+    this->get_service().template converting_move_construct<Protocol1>(
+        this->get_implementation(), other.get_implementation());
+  }
+
+  /// Move-assign a basic_socket from a socket of another protocol type.
+  /**
+   * This assignment operator moves a socket from one object to another.
+   *
+   * @param other The other basic_socket object from which the move will
+   * occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_socket(io_service&) constructor.
+   */
+  template <typename Protocol1, typename SocketService1>
+  typename enable_if<is_convertible<Protocol1, Protocol>::value,
+      basic_socket>::type& operator=(
+        basic_socket<Protocol1, SocketService1>&& other)
+  {
+    basic_socket tmp(ASIO_MOVE_CAST2(basic_socket<
+            Protocol1, SocketService1>)(other));
+    basic_io_object<SocketService>::operator=(
+        ASIO_MOVE_CAST(basic_socket)(tmp));
+    return *this;
+  }
+
+  /// Get a reference to the lowest layer.
+  /**
+   * This function returns a reference to the lowest layer in a stack of
+   * layers. Since a basic_socket cannot contain any further layers, it simply
+   * returns a reference to itself.
+   *
+   * @return A reference to the lowest layer in the stack of layers. Ownership
+   * is not transferred to the caller.
+   */
+  lowest_layer_type& lowest_layer()
+  {
+    return *this;
+  }
+
+  /// Get a const reference to the lowest layer.
+  /**
+   * This function returns a const reference to the lowest layer in a stack of
+   * layers. Since a basic_socket cannot contain any further layers, it simply
+   * returns a reference to itself.
+   *
+   * @return A const reference to the lowest layer in the stack of layers.
+   * Ownership is not transferred to the caller.
+   */
+  const lowest_layer_type& lowest_layer() const
+  {
+    return *this;
+  }
+
+  /// Open the socket using the specified protocol.
+  /**
+   * This function opens the socket so that it will use the specified protocol.
+   *
+   * @param protocol An object specifying protocol parameters to be used.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * socket.open(asio::ip::tcp::v4());
+   * @endcode
+   */
+  void open(const protocol_type& protocol = protocol_type())
+  {
+    asio::error_code ec;
+    this->get_service().open(this->get_implementation(), protocol, ec);
+    asio::detail::throw_error(ec, "open");
+  }
+
+  /// Open the socket using the specified protocol.
+  /**
+   * This function opens the socket so that it will use the specified protocol.
+   *
+   * @param protocol An object specifying which protocol is to be used.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * asio::error_code ec;
+   * socket.open(asio::ip::tcp::v4(), ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  asio::error_code open(const protocol_type& protocol,
+      asio::error_code& ec)
+  {
+    return this->get_service().open(this->get_implementation(), protocol, ec);
+  }
+
+  /// Assign an existing native socket to the socket.
+  /*
+   * This function opens the socket to hold an existing native socket.
+   *
+   * @param protocol An object specifying which protocol is to be used.
+   *
+   * @param native_socket A native socket.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  void assign(const protocol_type& protocol,
+      const native_handle_type& native_socket)
+  {
+    asio::error_code ec;
+    this->get_service().assign(this->get_implementation(),
+        protocol, native_socket, ec);
+    asio::detail::throw_error(ec, "assign");
+  }
+
+  /// Assign an existing native socket to the socket.
+  /*
+   * This function opens the socket to hold an existing native socket.
+   *
+   * @param protocol An object specifying which protocol is to be used.
+   *
+   * @param native_socket A native socket.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   */
+  asio::error_code assign(const protocol_type& protocol,
+      const native_handle_type& native_socket, asio::error_code& ec)
+  {
+    return this->get_service().assign(this->get_implementation(),
+        protocol, native_socket, ec);
+  }
+
+  /// Determine whether the socket is open.
+  bool is_open() const
+  {
+    return this->get_service().is_open(this->get_implementation());
+  }
+
+  /// Close the socket.
+  /**
+   * This function is used to close the socket. Any asynchronous send, receive
+   * or connect operations will be cancelled immediately, and will complete
+   * with the asio::error::operation_aborted error.
+   *
+   * @throws asio::system_error Thrown on failure. Note that, even if
+   * the function indicates an error, the underlying descriptor is closed.
+   *
+   * @note For portable behaviour with respect to graceful closure of a
+   * connected socket, call shutdown() before closing the socket.
+   */
+  void close()
+  {
+    asio::error_code ec;
+    this->get_service().close(this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "close");
+  }
+
+  /// Close the socket.
+  /**
+   * This function is used to close the socket. Any asynchronous send, receive
+   * or connect operations will be cancelled immediately, and will complete
+   * with the asio::error::operation_aborted error.
+   *
+   * @param ec Set to indicate what error occurred, if any. Note that, even if
+   * the function indicates an error, the underlying descriptor is closed.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::error_code ec;
+   * socket.close(ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   *
+   * @note For portable behaviour with respect to graceful closure of a
+   * connected socket, call shutdown() before closing the socket.
+   */
+  asio::error_code close(asio::error_code& ec)
+  {
+    return this->get_service().close(this->get_implementation(), ec);
+  }
+
+  /// (Deprecated: Use native_handle().) Get the native socket representation.
+  /**
+   * This function may be used to obtain the underlying representation of the
+   * socket. This is intended to allow access to native socket functionality
+   * that is not otherwise provided.
+   */
+  native_type native()
+  {
+    return this->get_service().native_handle(this->get_implementation());
+  }
+
+  /// Get the native socket representation.
+  /**
+   * This function may be used to obtain the underlying representation of the
+   * socket. This is intended to allow access to native socket functionality
+   * that is not otherwise provided.
+   */
+  native_handle_type native_handle()
+  {
+    return this->get_service().native_handle(this->get_implementation());
+  }
+
+  /// Cancel all asynchronous operations associated with the socket.
+  /**
+   * This function causes all outstanding asynchronous connect, send and receive
+   * operations to finish immediately, and the handlers for cancelled operations
+   * will be passed the asio::error::operation_aborted error.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note Calls to cancel() will always fail with
+   * asio::error::operation_not_supported when run on Windows XP, Windows
+   * Server 2003, and earlier versions of Windows, unless
+   * ASIO_ENABLE_CANCELIO is defined. However, the CancelIo function has
+   * two issues that should be considered before enabling its use:
+   *
+   * @li It will only cancel asynchronous operations that were initiated in the
+   * current thread.
+   *
+   * @li It can appear to complete without error, but the request to cancel the
+   * unfinished operations may be silently ignored by the operating system.
+   * Whether it works or not seems to depend on the drivers that are installed.
+   *
+   * For portable cancellation, consider using one of the following
+   * alternatives:
+   *
+   * @li Disable asio's I/O completion port backend by defining
+   * ASIO_DISABLE_IOCP.
+   *
+   * @li Use the close() function to simultaneously cancel the outstanding
+   * operations and close the socket.
+   *
+   * When running on Windows Vista, Windows Server 2008, and later, the
+   * CancelIoEx function is always used. This function does not have the
+   * problems described above.
+   */
+  void cancel()
+  {
+    asio::error_code ec;
+    this->get_service().cancel(this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "cancel");
+  }
+
+  /// Cancel all asynchronous operations associated with the socket.
+  /**
+   * This function causes all outstanding asynchronous connect, send and receive
+   * operations to finish immediately, and the handlers for cancelled operations
+   * will be passed the asio::error::operation_aborted error.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @note Calls to cancel() will always fail with
+   * asio::error::operation_not_supported when run on Windows XP, Windows
+   * Server 2003, and earlier versions of Windows, unless
+   * ASIO_ENABLE_CANCELIO is defined. However, the CancelIo function has
+   * two issues that should be considered before enabling its use:
+   *
+   * @li It will only cancel asynchronous operations that were initiated in the
+   * current thread.
+   *
+   * @li It can appear to complete without error, but the request to cancel the
+   * unfinished operations may be silently ignored by the operating system.
+   * Whether it works or not seems to depend on the drivers that are installed.
+   *
+   * For portable cancellation, consider using one of the following
+   * alternatives:
+   *
+   * @li Disable asio's I/O completion port backend by defining
+   * ASIO_DISABLE_IOCP.
+   *
+   * @li Use the close() function to simultaneously cancel the outstanding
+   * operations and close the socket.
+   *
+   * When running on Windows Vista, Windows Server 2008, and later, the
+   * CancelIoEx function is always used. This function does not have the
+   * problems described above.
+   */
+  asio::error_code cancel(asio::error_code& ec)
+  {
+    return this->get_service().cancel(this->get_implementation(), ec);
+  }
+
+  /// Determine whether the socket is at the out-of-band data mark.
+  /**
+   * This function is used to check whether the socket input is currently
+   * positioned at the out-of-band data mark.
+   *
+   * @return A bool indicating whether the socket is at the out-of-band data
+   * mark.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  bool at_mark() const
+  {
+    asio::error_code ec;
+    bool b = this->get_service().at_mark(this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "at_mark");
+    return b;
+  }
+
+  /// Determine whether the socket is at the out-of-band data mark.
+  /**
+   * This function is used to check whether the socket input is currently
+   * positioned at the out-of-band data mark.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @return A bool indicating whether the socket is at the out-of-band data
+   * mark.
+   */
+  bool at_mark(asio::error_code& ec) const
+  {
+    return this->get_service().at_mark(this->get_implementation(), ec);
+  }
+
+  /// Determine the number of bytes available for reading.
+  /**
+   * This function is used to determine the number of bytes that may be read
+   * without blocking.
+   *
+   * @return The number of bytes that may be read without blocking, or 0 if an
+   * error occurs.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  std::size_t available() const
+  {
+    asio::error_code ec;
+    std::size_t s = this->get_service().available(
+        this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "available");
+    return s;
+  }
+
+  /// Determine the number of bytes available for reading.
+  /**
+   * This function is used to determine the number of bytes that may be read
+   * without blocking.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @return The number of bytes that may be read without blocking, or 0 if an
+   * error occurs.
+   */
+  std::size_t available(asio::error_code& ec) const
+  {
+    return this->get_service().available(this->get_implementation(), ec);
+  }
+
+  /// Bind the socket to the given local endpoint.
+  /**
+   * This function binds the socket to the specified endpoint on the local
+   * machine.
+   *
+   * @param endpoint An endpoint on the local machine to which the socket will
+   * be bound.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * socket.open(asio::ip::tcp::v4());
+   * socket.bind(asio::ip::tcp::endpoint(
+   *       asio::ip::tcp::v4(), 12345));
+   * @endcode
+   */
+  void bind(const endpoint_type& endpoint)
+  {
+    asio::error_code ec;
+    this->get_service().bind(this->get_implementation(), endpoint, ec);
+    asio::detail::throw_error(ec, "bind");
+  }
+
+  /// Bind the socket to the given local endpoint.
+  /**
+   * This function binds the socket to the specified endpoint on the local
+   * machine.
+   *
+   * @param endpoint An endpoint on the local machine to which the socket will
+   * be bound.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * socket.open(asio::ip::tcp::v4());
+   * asio::error_code ec;
+   * socket.bind(asio::ip::tcp::endpoint(
+   *       asio::ip::tcp::v4(), 12345), ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  asio::error_code bind(const endpoint_type& endpoint,
+      asio::error_code& ec)
+  {
+    return this->get_service().bind(this->get_implementation(), endpoint, ec);
+  }
+
+  /// Connect the socket to the specified endpoint.
+  /**
+   * This function is used to connect a socket to the specified remote endpoint.
+   * The function call will block until the connection is successfully made or
+   * an error occurs.
+   *
+   * The socket is automatically opened if it is not already open. If the
+   * connect fails, and the socket was automatically opened, the socket is
+   * not returned to the closed state.
+   *
+   * @param peer_endpoint The remote endpoint to which the socket will be
+   * connected.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * asio::ip::tcp::endpoint endpoint(
+   *     asio::ip::address::from_string("1.2.3.4"), 12345);
+   * socket.connect(endpoint);
+   * @endcode
+   */
+  void connect(const endpoint_type& peer_endpoint)
+  {
+    asio::error_code ec;
+    if (!is_open())
+    {
+      this->get_service().open(this->get_implementation(),
+          peer_endpoint.protocol(), ec);
+      asio::detail::throw_error(ec, "connect");
+    }
+    this->get_service().connect(this->get_implementation(), peer_endpoint, ec);
+    asio::detail::throw_error(ec, "connect");
+  }
+
+  /// Connect the socket to the specified endpoint.
+  /**
+   * This function is used to connect a socket to the specified remote endpoint.
+   * The function call will block until the connection is successfully made or
+   * an error occurs.
+   *
+   * The socket is automatically opened if it is not already open. If the
+   * connect fails, and the socket was automatically opened, the socket is
+   * not returned to the closed state.
+   *
+   * @param peer_endpoint The remote endpoint to which the socket will be
+   * connected.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * asio::ip::tcp::endpoint endpoint(
+   *     asio::ip::address::from_string("1.2.3.4"), 12345);
+   * asio::error_code ec;
+   * socket.connect(endpoint, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  asio::error_code connect(const endpoint_type& peer_endpoint,
+      asio::error_code& ec)
+  {
+    if (!is_open())
+    {
+      if (this->get_service().open(this->get_implementation(),
+            peer_endpoint.protocol(), ec))
+      {
+        return ec;
+      }
+    }
+
+    return this->get_service().connect(
+        this->get_implementation(), peer_endpoint, ec);
+  }
+
+  /// Start an asynchronous connect.
+  /**
+   * This function is used to asynchronously connect a socket to the specified
+   * remote endpoint. The function call always returns immediately.
+   *
+   * The socket is automatically opened if it is not already open. If the
+   * connect fails, and the socket was automatically opened, the socket is
+   * not returned to the closed state.
+   *
+   * @param peer_endpoint The remote endpoint to which the socket will be
+   * connected. Copies will be made of the endpoint object as required.
+   *
+   * @param handler The handler to be called when the connection operation
+   * completes. Copies will be made of the handler as required. The function
+   * signature of the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error // Result of operation
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @par Example
+   * @code
+   * void connect_handler(const asio::error_code& error)
+   * {
+   *   if (!error)
+   *   {
+   *     // Connect succeeded.
+   *   }
+   * }
+   *
+   * ...
+   *
+   * asio::ip::tcp::socket socket(io_service);
+   * asio::ip::tcp::endpoint endpoint(
+   *     asio::ip::address::from_string("1.2.3.4"), 12345);
+   * socket.async_connect(endpoint, connect_handler);
+   * @endcode
+   */
+  template <typename ConnectHandler>
+  ASIO_INITFN_RESULT_TYPE(ConnectHandler,
+      void (asio::error_code))
+  async_connect(const endpoint_type& peer_endpoint,
+      ASIO_MOVE_ARG(ConnectHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a ConnectHandler.
+    ASIO_CONNECT_HANDLER_CHECK(ConnectHandler, handler) type_check;
+
+    if (!is_open())
+    {
+      asio::error_code ec;
+      const protocol_type protocol = peer_endpoint.protocol();
+      if (this->get_service().open(this->get_implementation(), protocol, ec))
+      {
+        detail::async_result_init<
+          ConnectHandler, void (asio::error_code)> init(
+            ASIO_MOVE_CAST(ConnectHandler)(handler));
+
+        this->get_io_service().post(
+            asio::detail::bind_handler(
+              ASIO_MOVE_CAST(ASIO_HANDLER_TYPE(
+                ConnectHandler, void (asio::error_code)))(
+                  init.handler), ec));
+
+        return init.result.get();
+      }
+    }
+
+    return this->get_service().async_connect(this->get_implementation(),
+        peer_endpoint, ASIO_MOVE_CAST(ConnectHandler)(handler));
+  }
+
+  /// Set an option on the socket.
+  /**
+   * This function is used to set an option on the socket.
+   *
+   * @param option The new option value to be set on the socket.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @sa SettableSocketOption @n
+   * asio::socket_base::broadcast @n
+   * asio::socket_base::do_not_route @n
+   * asio::socket_base::keep_alive @n
+   * asio::socket_base::linger @n
+   * asio::socket_base::receive_buffer_size @n
+   * asio::socket_base::receive_low_watermark @n
+   * asio::socket_base::reuse_address @n
+   * asio::socket_base::send_buffer_size @n
+   * asio::socket_base::send_low_watermark @n
+   * asio::ip::multicast::join_group @n
+   * asio::ip::multicast::leave_group @n
+   * asio::ip::multicast::enable_loopback @n
+   * asio::ip::multicast::outbound_interface @n
+   * asio::ip::multicast::hops @n
+   * asio::ip::tcp::no_delay
+   *
+   * @par Example
+   * Setting the IPPROTO_TCP/TCP_NODELAY option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::ip::tcp::no_delay option(true);
+   * socket.set_option(option);
+   * @endcode
+   */
+  template <typename SettableSocketOption>
+  void set_option(const SettableSocketOption& option)
+  {
+    asio::error_code ec;
+    this->get_service().set_option(this->get_implementation(), option, ec);
+    asio::detail::throw_error(ec, "set_option");
+  }
+
+  /// Set an option on the socket.
+  /**
+   * This function is used to set an option on the socket.
+   *
+   * @param option The new option value to be set on the socket.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @sa SettableSocketOption @n
+   * asio::socket_base::broadcast @n
+   * asio::socket_base::do_not_route @n
+   * asio::socket_base::keep_alive @n
+   * asio::socket_base::linger @n
+   * asio::socket_base::receive_buffer_size @n
+   * asio::socket_base::receive_low_watermark @n
+   * asio::socket_base::reuse_address @n
+   * asio::socket_base::send_buffer_size @n
+   * asio::socket_base::send_low_watermark @n
+   * asio::ip::multicast::join_group @n
+   * asio::ip::multicast::leave_group @n
+   * asio::ip::multicast::enable_loopback @n
+   * asio::ip::multicast::outbound_interface @n
+   * asio::ip::multicast::hops @n
+   * asio::ip::tcp::no_delay
+   *
+   * @par Example
+   * Setting the IPPROTO_TCP/TCP_NODELAY option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::ip::tcp::no_delay option(true);
+   * asio::error_code ec;
+   * socket.set_option(option, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  template <typename SettableSocketOption>
+  asio::error_code set_option(const SettableSocketOption& option,
+      asio::error_code& ec)
+  {
+    return this->get_service().set_option(
+        this->get_implementation(), option, ec);
+  }
+
+  /// Get an option from the socket.
+  /**
+   * This function is used to get the current value of an option on the socket.
+   *
+   * @param option The option value to be obtained from the socket.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @sa GettableSocketOption @n
+   * asio::socket_base::broadcast @n
+   * asio::socket_base::do_not_route @n
+   * asio::socket_base::keep_alive @n
+   * asio::socket_base::linger @n
+   * asio::socket_base::receive_buffer_size @n
+   * asio::socket_base::receive_low_watermark @n
+   * asio::socket_base::reuse_address @n
+   * asio::socket_base::send_buffer_size @n
+   * asio::socket_base::send_low_watermark @n
+   * asio::ip::multicast::join_group @n
+   * asio::ip::multicast::leave_group @n
+   * asio::ip::multicast::enable_loopback @n
+   * asio::ip::multicast::outbound_interface @n
+   * asio::ip::multicast::hops @n
+   * asio::ip::tcp::no_delay
+   *
+   * @par Example
+   * Getting the value of the SOL_SOCKET/SO_KEEPALIVE option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::ip::tcp::socket::keep_alive option;
+   * socket.get_option(option);
+   * bool is_set = option.value();
+   * @endcode
+   */
+  template <typename GettableSocketOption>
+  void get_option(GettableSocketOption& option) const
+  {
+    asio::error_code ec;
+    this->get_service().get_option(this->get_implementation(), option, ec);
+    asio::detail::throw_error(ec, "get_option");
+  }
+
+  /// Get an option from the socket.
+  /**
+   * This function is used to get the current value of an option on the socket.
+   *
+   * @param option The option value to be obtained from the socket.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @sa GettableSocketOption @n
+   * asio::socket_base::broadcast @n
+   * asio::socket_base::do_not_route @n
+   * asio::socket_base::keep_alive @n
+   * asio::socket_base::linger @n
+   * asio::socket_base::receive_buffer_size @n
+   * asio::socket_base::receive_low_watermark @n
+   * asio::socket_base::reuse_address @n
+   * asio::socket_base::send_buffer_size @n
+   * asio::socket_base::send_low_watermark @n
+   * asio::ip::multicast::join_group @n
+   * asio::ip::multicast::leave_group @n
+   * asio::ip::multicast::enable_loopback @n
+   * asio::ip::multicast::outbound_interface @n
+   * asio::ip::multicast::hops @n
+   * asio::ip::tcp::no_delay
+   *
+   * @par Example
+   * Getting the value of the SOL_SOCKET/SO_KEEPALIVE option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::ip::tcp::socket::keep_alive option;
+   * asio::error_code ec;
+   * socket.get_option(option, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * bool is_set = option.value();
+   * @endcode
+   */
+  template <typename GettableSocketOption>
+  asio::error_code get_option(GettableSocketOption& option,
+      asio::error_code& ec) const
+  {
+    return this->get_service().get_option(
+        this->get_implementation(), option, ec);
+  }
+
+  /// Perform an IO control command on the socket.
+  /**
+   * This function is used to execute an IO control command on the socket.
+   *
+   * @param command The IO control command to be performed on the socket.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @sa IoControlCommand @n
+   * asio::socket_base::bytes_readable @n
+   * asio::socket_base::non_blocking_io
+   *
+   * @par Example
+   * Getting the number of bytes ready to read:
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::ip::tcp::socket::bytes_readable command;
+   * socket.io_control(command);
+   * std::size_t bytes_readable = command.get();
+   * @endcode
+   */
+  template <typename IoControlCommand>
+  void io_control(IoControlCommand& command)
+  {
+    asio::error_code ec;
+    this->get_service().io_control(this->get_implementation(), command, ec);
+    asio::detail::throw_error(ec, "io_control");
+  }
+
+  /// Perform an IO control command on the socket.
+  /**
+   * This function is used to execute an IO control command on the socket.
+   *
+   * @param command The IO control command to be performed on the socket.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @sa IoControlCommand @n
+   * asio::socket_base::bytes_readable @n
+   * asio::socket_base::non_blocking_io
+   *
+   * @par Example
+   * Getting the number of bytes ready to read:
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::ip::tcp::socket::bytes_readable command;
+   * asio::error_code ec;
+   * socket.io_control(command, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * std::size_t bytes_readable = command.get();
+   * @endcode
+   */
+  template <typename IoControlCommand>
+  asio::error_code io_control(IoControlCommand& command,
+      asio::error_code& ec)
+  {
+    return this->get_service().io_control(
+        this->get_implementation(), command, ec);
+  }
+
+  /// Gets the non-blocking mode of the socket.
+  /**
+   * @returns @c true if the socket's synchronous operations will fail with
+   * asio::error::would_block if they are unable to perform the requested
+   * operation immediately. If @c false, synchronous operations will block
+   * until complete.
+   *
+   * @note The non-blocking mode has no effect on the behaviour of asynchronous
+   * operations. Asynchronous operations will never fail with the error
+   * asio::error::would_block.
+   */
+  bool non_blocking() const
+  {
+    return this->get_service().non_blocking(this->get_implementation());
+  }
+
+  /// Sets the non-blocking mode of the socket.
+  /**
+   * @param mode If @c true, the socket's synchronous operations will fail with
+   * asio::error::would_block if they are unable to perform the requested
+   * operation immediately. If @c false, synchronous operations will block
+   * until complete.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note The non-blocking mode has no effect on the behaviour of asynchronous
+   * operations. Asynchronous operations will never fail with the error
+   * asio::error::would_block.
+   */
+  void non_blocking(bool mode)
+  {
+    asio::error_code ec;
+    this->get_service().non_blocking(this->get_implementation(), mode, ec);
+    asio::detail::throw_error(ec, "non_blocking");
+  }
+
+  /// Sets the non-blocking mode of the socket.
+  /**
+   * @param mode If @c true, the socket's synchronous operations will fail with
+   * asio::error::would_block if they are unable to perform the requested
+   * operation immediately. If @c false, synchronous operations will block
+   * until complete.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @note The non-blocking mode has no effect on the behaviour of asynchronous
+   * operations. Asynchronous operations will never fail with the error
+   * asio::error::would_block.
+   */
+  asio::error_code non_blocking(
+      bool mode, asio::error_code& ec)
+  {
+    return this->get_service().non_blocking(
+        this->get_implementation(), mode, ec);
+  }
+
+  /// Gets the non-blocking mode of the native socket implementation.
+  /**
+   * This function is used to retrieve the non-blocking mode of the underlying
+   * native socket. This mode has no effect on the behaviour of the socket
+   * object's synchronous operations.
+   *
+   * @returns @c true if the underlying socket is in non-blocking mode and
+   * direct system calls may fail with asio::error::would_block (or the
+   * equivalent system error).
+   *
+   * @note The current non-blocking mode is cached by the socket object.
+   * Consequently, the return value may be incorrect if the non-blocking mode
+   * was set directly on the native socket.
+   *
+   * @par Example
+   * This function is intended to allow the encapsulation of arbitrary
+   * non-blocking system calls as asynchronous operations, in a way that is
+   * transparent to the user of the socket object. The following example
+   * illustrates how Linux's @c sendfile system call might be encapsulated:
+   * @code template <typename Handler>
+   * struct sendfile_op
+   * {
+   *   tcp::socket& sock_;
+   *   int fd_;
+   *   Handler handler_;
+   *   off_t offset_;
+   *   std::size_t total_bytes_transferred_;
+   *
+   *   // Function call operator meeting WriteHandler requirements.
+   *   // Used as the handler for the async_write_some operation.
+   *   void operator()(asio::error_code ec, std::size_t)
+   *   {
+   *     // Put the underlying socket into non-blocking mode.
+   *     if (!ec)
+   *       if (!sock_.native_non_blocking())
+   *         sock_.native_non_blocking(true, ec);
+   *
+   *     if (!ec)
+   *     {
+   *       for (;;)
+   *       {
+   *         // Try the system call.
+   *         errno = 0;
+   *         int n = ::sendfile(sock_.native_handle(), fd_, &offset_, 65536);
+   *         ec = asio::error_code(n < 0 ? errno : 0,
+   *             asio::error::get_system_category());
+   *         total_bytes_transferred_ += ec ? 0 : n;
+   *
+   *         // Retry operation immediately if interrupted by signal.
+   *         if (ec == asio::error::interrupted)
+   *           continue;
+   *
+   *         // Check if we need to run the operation again.
+   *         if (ec == asio::error::would_block
+   *             || ec == asio::error::try_again)
+   *         {
+   *           // We have to wait for the socket to become ready again.
+   *           sock_.async_write_some(asio::null_buffers(), *this);
+   *           return;
+   *         }
+   *
+   *         if (ec || n == 0)
+   *         {
+   *           // An error occurred, or we have reached the end of the file.
+   *           // Either way we must exit the loop so we can call the handler.
+   *           break;
+   *         }
+   *
+   *         // Loop around to try calling sendfile again.
+   *       }
+   *     }
+   *
+   *     // Pass result back to user's handler.
+   *     handler_(ec, total_bytes_transferred_);
+   *   }
+   * };
+   *
+   * template <typename Handler>
+   * void async_sendfile(tcp::socket& sock, int fd, Handler h)
+   * {
+   *   sendfile_op<Handler> op = { sock, fd, h, 0, 0 };
+   *   sock.async_write_some(asio::null_buffers(), op);
+   * } @endcode
+   */
+  bool native_non_blocking() const
+  {
+    return this->get_service().native_non_blocking(this->get_implementation());
+  }
+
+  /// Sets the non-blocking mode of the native socket implementation.
+  /**
+   * This function is used to modify the non-blocking mode of the underlying
+   * native socket. It has no effect on the behaviour of the socket object's
+   * synchronous operations.
+   *
+   * @param mode If @c true, the underlying socket is put into non-blocking
+   * mode and direct system calls may fail with asio::error::would_block
+   * (or the equivalent system error).
+   *
+   * @throws asio::system_error Thrown on failure. If the @c mode is
+   * @c false, but the current value of @c non_blocking() is @c true, this
+   * function fails with asio::error::invalid_argument, as the
+   * combination does not make sense.
+   *
+   * @par Example
+   * This function is intended to allow the encapsulation of arbitrary
+   * non-blocking system calls as asynchronous operations, in a way that is
+   * transparent to the user of the socket object. The following example
+   * illustrates how Linux's @c sendfile system call might be encapsulated:
+   * @code template <typename Handler>
+   * struct sendfile_op
+   * {
+   *   tcp::socket& sock_;
+   *   int fd_;
+   *   Handler handler_;
+   *   off_t offset_;
+   *   std::size_t total_bytes_transferred_;
+   *
+   *   // Function call operator meeting WriteHandler requirements.
+   *   // Used as the handler for the async_write_some operation.
+   *   void operator()(asio::error_code ec, std::size_t)
+   *   {
+   *     // Put the underlying socket into non-blocking mode.
+   *     if (!ec)
+   *       if (!sock_.native_non_blocking())
+   *         sock_.native_non_blocking(true, ec);
+   *
+   *     if (!ec)
+   *     {
+   *       for (;;)
+   *       {
+   *         // Try the system call.
+   *         errno = 0;
+   *         int n = ::sendfile(sock_.native_handle(), fd_, &offset_, 65536);
+   *         ec = asio::error_code(n < 0 ? errno : 0,
+   *             asio::error::get_system_category());
+   *         total_bytes_transferred_ += ec ? 0 : n;
+   *
+   *         // Retry operation immediately if interrupted by signal.
+   *         if (ec == asio::error::interrupted)
+   *           continue;
+   *
+   *         // Check if we need to run the operation again.
+   *         if (ec == asio::error::would_block
+   *             || ec == asio::error::try_again)
+   *         {
+   *           // We have to wait for the socket to become ready again.
+   *           sock_.async_write_some(asio::null_buffers(), *this);
+   *           return;
+   *         }
+   *
+   *         if (ec || n == 0)
+   *         {
+   *           // An error occurred, or we have reached the end of the file.
+   *           // Either way we must exit the loop so we can call the handler.
+   *           break;
+   *         }
+   *
+   *         // Loop around to try calling sendfile again.
+   *       }
+   *     }
+   *
+   *     // Pass result back to user's handler.
+   *     handler_(ec, total_bytes_transferred_);
+   *   }
+   * };
+   *
+   * template <typename Handler>
+   * void async_sendfile(tcp::socket& sock, int fd, Handler h)
+   * {
+   *   sendfile_op<Handler> op = { sock, fd, h, 0, 0 };
+   *   sock.async_write_some(asio::null_buffers(), op);
+   * } @endcode
+   */
+  void native_non_blocking(bool mode)
+  {
+    asio::error_code ec;
+    this->get_service().native_non_blocking(
+        this->get_implementation(), mode, ec);
+    asio::detail::throw_error(ec, "native_non_blocking");
+  }
+
+  /// Sets the non-blocking mode of the native socket implementation.
+  /**
+   * This function is used to modify the non-blocking mode of the underlying
+   * native socket. It has no effect on the behaviour of the socket object's
+   * synchronous operations.
+   *
+   * @param mode If @c true, the underlying socket is put into non-blocking
+   * mode and direct system calls may fail with asio::error::would_block
+   * (or the equivalent system error).
+   *
+   * @param ec Set to indicate what error occurred, if any. If the @c mode is
+   * @c false, but the current value of @c non_blocking() is @c true, this
+   * function fails with asio::error::invalid_argument, as the
+   * combination does not make sense.
+   *
+   * @par Example
+   * This function is intended to allow the encapsulation of arbitrary
+   * non-blocking system calls as asynchronous operations, in a way that is
+   * transparent to the user of the socket object. The following example
+   * illustrates how Linux's @c sendfile system call might be encapsulated:
+   * @code template <typename Handler>
+   * struct sendfile_op
+   * {
+   *   tcp::socket& sock_;
+   *   int fd_;
+   *   Handler handler_;
+   *   off_t offset_;
+   *   std::size_t total_bytes_transferred_;
+   *
+   *   // Function call operator meeting WriteHandler requirements.
+   *   // Used as the handler for the async_write_some operation.
+   *   void operator()(asio::error_code ec, std::size_t)
+   *   {
+   *     // Put the underlying socket into non-blocking mode.
+   *     if (!ec)
+   *       if (!sock_.native_non_blocking())
+   *         sock_.native_non_blocking(true, ec);
+   *
+   *     if (!ec)
+   *     {
+   *       for (;;)
+   *       {
+   *         // Try the system call.
+   *         errno = 0;
+   *         int n = ::sendfile(sock_.native_handle(), fd_, &offset_, 65536);
+   *         ec = asio::error_code(n < 0 ? errno : 0,
+   *             asio::error::get_system_category());
+   *         total_bytes_transferred_ += ec ? 0 : n;
+   *
+   *         // Retry operation immediately if interrupted by signal.
+   *         if (ec == asio::error::interrupted)
+   *           continue;
+   *
+   *         // Check if we need to run the operation again.
+   *         if (ec == asio::error::would_block
+   *             || ec == asio::error::try_again)
+   *         {
+   *           // We have to wait for the socket to become ready again.
+   *           sock_.async_write_some(asio::null_buffers(), *this);
+   *           return;
+   *         }
+   *
+   *         if (ec || n == 0)
+   *         {
+   *           // An error occurred, or we have reached the end of the file.
+   *           // Either way we must exit the loop so we can call the handler.
+   *           break;
+   *         }
+   *
+   *         // Loop around to try calling sendfile again.
+   *       }
+   *     }
+   *
+   *     // Pass result back to user's handler.
+   *     handler_(ec, total_bytes_transferred_);
+   *   }
+   * };
+   *
+   * template <typename Handler>
+   * void async_sendfile(tcp::socket& sock, int fd, Handler h)
+   * {
+   *   sendfile_op<Handler> op = { sock, fd, h, 0, 0 };
+   *   sock.async_write_some(asio::null_buffers(), op);
+   * } @endcode
+   */
+  asio::error_code native_non_blocking(
+      bool mode, asio::error_code& ec)
+  {
+    return this->get_service().native_non_blocking(
+        this->get_implementation(), mode, ec);
+  }
+
+  /// Get the local endpoint of the socket.
+  /**
+   * This function is used to obtain the locally bound endpoint of the socket.
+   *
+   * @returns An object that represents the local endpoint of the socket.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::ip::tcp::endpoint endpoint = socket.local_endpoint();
+   * @endcode
+   */
+  endpoint_type local_endpoint() const
+  {
+    asio::error_code ec;
+    endpoint_type ep = this->get_service().local_endpoint(
+        this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "local_endpoint");
+    return ep;
+  }
+
+  /// Get the local endpoint of the socket.
+  /**
+   * This function is used to obtain the locally bound endpoint of the socket.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns An object that represents the local endpoint of the socket.
+   * Returns a default-constructed endpoint object if an error occurred.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::error_code ec;
+   * asio::ip::tcp::endpoint endpoint = socket.local_endpoint(ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  endpoint_type local_endpoint(asio::error_code& ec) const
+  {
+    return this->get_service().local_endpoint(this->get_implementation(), ec);
+  }
+
+  /// Get the remote endpoint of the socket.
+  /**
+   * This function is used to obtain the remote endpoint of the socket.
+   *
+   * @returns An object that represents the remote endpoint of the socket.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::ip::tcp::endpoint endpoint = socket.remote_endpoint();
+   * @endcode
+   */
+  endpoint_type remote_endpoint() const
+  {
+    asio::error_code ec;
+    endpoint_type ep = this->get_service().remote_endpoint(
+        this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "remote_endpoint");
+    return ep;
+  }
+
+  /// Get the remote endpoint of the socket.
+  /**
+   * This function is used to obtain the remote endpoint of the socket.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns An object that represents the remote endpoint of the socket.
+   * Returns a default-constructed endpoint object if an error occurred.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::error_code ec;
+   * asio::ip::tcp::endpoint endpoint = socket.remote_endpoint(ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  endpoint_type remote_endpoint(asio::error_code& ec) const
+  {
+    return this->get_service().remote_endpoint(this->get_implementation(), ec);
+  }
+
+  /// Disable sends or receives on the socket.
+  /**
+   * This function is used to disable send operations, receive operations, or
+   * both.
+   *
+   * @param what Determines what types of operation will no longer be allowed.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * Shutting down the send side of the socket:
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * socket.shutdown(asio::ip::tcp::socket::shutdown_send);
+   * @endcode
+   */
+  void shutdown(shutdown_type what)
+  {
+    asio::error_code ec;
+    this->get_service().shutdown(this->get_implementation(), what, ec);
+    asio::detail::throw_error(ec, "shutdown");
+  }
+
+  /// Disable sends or receives on the socket.
+  /**
+   * This function is used to disable send operations, receive operations, or
+   * both.
+   *
+   * @param what Determines what types of operation will no longer be allowed.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * Shutting down the send side of the socket:
+   * @code
+   * asio::ip::tcp::socket socket(io_service);
+   * ...
+   * asio::error_code ec;
+   * socket.shutdown(asio::ip::tcp::socket::shutdown_send, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  asio::error_code shutdown(shutdown_type what,
+      asio::error_code& ec)
+  {
+    return this->get_service().shutdown(this->get_implementation(), what, ec);
+  }
+
+protected:
+  /// Protected destructor to prevent deletion through this type.
+  ~basic_socket()
+  {
+  }
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_BASIC_SOCKET_HPP
diff --git a/asio-1.10.6/include/asio/basic_socket_acceptor.hpp b/asio-1.10.6/include/asio/basic_socket_acceptor.hpp
new file mode 100644
index 0000000..4e3766d
--- /dev/null
+++ b/asio-1.10.6/include/asio/basic_socket_acceptor.hpp
@@ -0,0 +1,1131 @@
+//
+// basic_socket_acceptor.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_BASIC_SOCKET_ACCEPTOR_HPP
+#define ASIO_BASIC_SOCKET_ACCEPTOR_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/basic_io_object.hpp"
+#include "asio/basic_socket.hpp"
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/detail/type_traits.hpp"
+#include "asio/error.hpp"
+#include "asio/socket_acceptor_service.hpp"
+#include "asio/socket_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Provides the ability to accept new connections.
+/**
+ * The basic_socket_acceptor class template is used for accepting new socket
+ * connections.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ *
+ * @par Example
+ * Opening a socket acceptor with the SO_REUSEADDR option enabled:
+ * @code
+ * asio::ip::tcp::acceptor acceptor(io_service);
+ * asio::ip::tcp::endpoint endpoint(asio::ip::tcp::v4(), port);
+ * acceptor.open(endpoint.protocol());
+ * acceptor.set_option(asio::ip::tcp::acceptor::reuse_address(true));
+ * acceptor.bind(endpoint);
+ * acceptor.listen();
+ * @endcode
+ */
+template <typename Protocol,
+    typename SocketAcceptorService = socket_acceptor_service<Protocol> >
+class basic_socket_acceptor
+  : public basic_io_object<SocketAcceptorService>,
+    public socket_base
+{
+public:
+  /// (Deprecated: Use native_handle_type.) The native representation of an
+  /// acceptor.
+  typedef typename SocketAcceptorService::native_handle_type native_type;
+
+  /// The native representation of an acceptor.
+  typedef typename SocketAcceptorService::native_handle_type native_handle_type;
+
+  /// The protocol type.
+  typedef Protocol protocol_type;
+
+  /// The endpoint type.
+  typedef typename Protocol::endpoint endpoint_type;
+
+  /// Construct an acceptor without opening it.
+  /**
+   * This constructor creates an acceptor without opening it to listen for new
+   * connections. The open() function must be called before the acceptor can
+   * accept new socket connections.
+   *
+   * @param io_service The io_service object that the acceptor will use to
+   * dispatch handlers for any asynchronous operations performed on the
+   * acceptor.
+   */
+  explicit basic_socket_acceptor(asio::io_service& io_service)
+    : basic_io_object<SocketAcceptorService>(io_service)
+  {
+  }
+
+  /// Construct an open acceptor.
+  /**
+   * This constructor creates an acceptor and automatically opens it.
+   *
+   * @param io_service The io_service object that the acceptor will use to
+   * dispatch handlers for any asynchronous operations performed on the
+   * acceptor.
+   *
+   * @param protocol An object specifying protocol parameters to be used.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_socket_acceptor(asio::io_service& io_service,
+      const protocol_type& protocol)
+    : basic_io_object<SocketAcceptorService>(io_service)
+  {
+    asio::error_code ec;
+    this->get_service().open(this->get_implementation(), protocol, ec);
+    asio::detail::throw_error(ec, "open");
+  }
+
+  /// Construct an acceptor opened on the given endpoint.
+  /**
+   * This constructor creates an acceptor and automatically opens it to listen
+   * for new connections on the specified endpoint.
+   *
+   * @param io_service The io_service object that the acceptor will use to
+   * dispatch handlers for any asynchronous operations performed on the
+   * acceptor.
+   *
+   * @param endpoint An endpoint on the local machine on which the acceptor
+   * will listen for new connections.
+   *
+   * @param reuse_addr Whether the constructor should set the socket option
+   * socket_base::reuse_address.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note This constructor is equivalent to the following code:
+   * @code
+   * basic_socket_acceptor<Protocol> acceptor(io_service);
+   * acceptor.open(endpoint.protocol());
+   * if (reuse_addr)
+   *   acceptor.set_option(socket_base::reuse_address(true));
+   * acceptor.bind(endpoint);
+   * acceptor.listen(listen_backlog);
+   * @endcode
+   */
+  basic_socket_acceptor(asio::io_service& io_service,
+      const endpoint_type& endpoint, bool reuse_addr = true)
+    : basic_io_object<SocketAcceptorService>(io_service)
+  {
+    asio::error_code ec;
+    const protocol_type protocol = endpoint.protocol();
+    this->get_service().open(this->get_implementation(), protocol, ec);
+    asio::detail::throw_error(ec, "open");
+    if (reuse_addr)
+    {
+      this->get_service().set_option(this->get_implementation(),
+          socket_base::reuse_address(true), ec);
+      asio::detail::throw_error(ec, "set_option");
+    }
+    this->get_service().bind(this->get_implementation(), endpoint, ec);
+    asio::detail::throw_error(ec, "bind");
+    this->get_service().listen(this->get_implementation(),
+        socket_base::max_connections, ec);
+    asio::detail::throw_error(ec, "listen");
+  }
+
+  /// Construct a basic_socket_acceptor on an existing native acceptor.
+  /**
+   * This constructor creates an acceptor object to hold an existing native
+   * acceptor.
+   *
+   * @param io_service The io_service object that the acceptor will use to
+   * dispatch handlers for any asynchronous operations performed on the
+   * acceptor.
+   *
+   * @param protocol An object specifying protocol parameters to be used.
+   *
+   * @param native_acceptor A native acceptor.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_socket_acceptor(asio::io_service& io_service,
+      const protocol_type& protocol, const native_handle_type& native_acceptor)
+    : basic_io_object<SocketAcceptorService>(io_service)
+  {
+    asio::error_code ec;
+    this->get_service().assign(this->get_implementation(),
+        protocol, native_acceptor, ec);
+    asio::detail::throw_error(ec, "assign");
+  }
+
+  /// Move-construct a basic_socket_acceptor from another.
+  /**
+   * This constructor moves an acceptor from one object to another.
+   *
+   * @param other The other basic_socket_acceptor object from which the move
+   * will occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_socket_acceptor(io_service&) constructor.
+   */
+  basic_socket_acceptor(basic_socket_acceptor&& other)
+    : basic_io_object<SocketAcceptorService>(
+        ASIO_MOVE_CAST(basic_socket_acceptor)(other))
+  {
+  }
+
+  /// Move-assign a basic_socket_acceptor from another.
+  /**
+   * This assignment operator moves an acceptor from one object to another.
+   *
+   * @param other The other basic_socket_acceptor object from which the move
+   * will occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_socket_acceptor(io_service&) constructor.
+   */
+  basic_socket_acceptor& operator=(basic_socket_acceptor&& other)
+  {
+    basic_io_object<SocketAcceptorService>::operator=(
+        ASIO_MOVE_CAST(basic_socket_acceptor)(other));
+    return *this;
+  }
+
+  // All socket acceptors have access to each other's implementations.
+  template <typename Protocol1, typename SocketAcceptorService1>
+  friend class basic_socket_acceptor;
+
+  /// Move-construct a basic_socket_acceptor from an acceptor of another
+  /// protocol type.
+  /**
+   * This constructor moves an acceptor from one object to another.
+   *
+   * @param other The other basic_socket_acceptor object from which the move
+   * will occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_socket(io_service&) constructor.
+   */
+  template <typename Protocol1, typename SocketAcceptorService1>
+  basic_socket_acceptor(
+      basic_socket_acceptor<Protocol1, SocketAcceptorService1>&& other,
+      typename enable_if<is_convertible<Protocol1, Protocol>::value>::type* = 0)
+    : basic_io_object<SocketAcceptorService>(other.get_io_service())
+  {
+    this->get_service().template converting_move_construct<Protocol1>(
+        this->get_implementation(), other.get_implementation());
+  }
+
+  /// Move-assign a basic_socket_acceptor from an acceptor of another protocol
+  /// type.
+  /**
+   * This assignment operator moves an acceptor from one object to another.
+   *
+   * @param other The other basic_socket_acceptor object from which the move
+   * will occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_socket(io_service&) constructor.
+   */
+  template <typename Protocol1, typename SocketAcceptorService1>
+  typename enable_if<is_convertible<Protocol1, Protocol>::value,
+      basic_socket_acceptor>::type& operator=(
+        basic_socket_acceptor<Protocol1, SocketAcceptorService1>&& other)
+  {
+    basic_socket_acceptor tmp(ASIO_MOVE_CAST2(basic_socket_acceptor<
+            Protocol1, SocketAcceptorService1>)(other));
+    basic_io_object<SocketAcceptorService>::operator=(
+        ASIO_MOVE_CAST(basic_socket_acceptor)(tmp));
+    return *this;
+  }
+
+  /// Open the acceptor using the specified protocol.
+  /**
+   * This function opens the socket acceptor so that it will use the specified
+   * protocol.
+   *
+   * @param protocol An object specifying which protocol is to be used.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * acceptor.open(asio::ip::tcp::v4());
+   * @endcode
+   */
+  void open(const protocol_type& protocol = protocol_type())
+  {
+    asio::error_code ec;
+    this->get_service().open(this->get_implementation(), protocol, ec);
+    asio::detail::throw_error(ec, "open");
+  }
+
+  /// Open the acceptor using the specified protocol.
+  /**
+   * This function opens the socket acceptor so that it will use the specified
+   * protocol.
+   *
+   * @param protocol An object specifying which protocol is to be used.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * asio::error_code ec;
+   * acceptor.open(asio::ip::tcp::v4(), ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  asio::error_code open(const protocol_type& protocol,
+      asio::error_code& ec)
+  {
+    return this->get_service().open(this->get_implementation(), protocol, ec);
+  }
+
+  /// Assigns an existing native acceptor to the acceptor.
+  /*
+   * This function opens the acceptor to hold an existing native acceptor.
+   *
+   * @param protocol An object specifying which protocol is to be used.
+   *
+   * @param native_acceptor A native acceptor.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  void assign(const protocol_type& protocol,
+      const native_handle_type& native_acceptor)
+  {
+    asio::error_code ec;
+    this->get_service().assign(this->get_implementation(),
+        protocol, native_acceptor, ec);
+    asio::detail::throw_error(ec, "assign");
+  }
+
+  /// Assigns an existing native acceptor to the acceptor.
+  /*
+   * This function opens the acceptor to hold an existing native acceptor.
+   *
+   * @param protocol An object specifying which protocol is to be used.
+   *
+   * @param native_acceptor A native acceptor.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   */
+  asio::error_code assign(const protocol_type& protocol,
+      const native_handle_type& native_acceptor, asio::error_code& ec)
+  {
+    return this->get_service().assign(this->get_implementation(),
+        protocol, native_acceptor, ec);
+  }
+
+  /// Determine whether the acceptor is open.
+  bool is_open() const
+  {
+    return this->get_service().is_open(this->get_implementation());
+  }
+
+  /// Bind the acceptor to the given local endpoint.
+  /**
+   * This function binds the socket acceptor to the specified endpoint on the
+   * local machine.
+   *
+   * @param endpoint An endpoint on the local machine to which the socket
+   * acceptor will be bound.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * asio::ip::tcp::endpoint endpoint(asio::ip::tcp::v4(), 12345);
+   * acceptor.open(endpoint.protocol());
+   * acceptor.bind(endpoint);
+   * @endcode
+   */
+  void bind(const endpoint_type& endpoint)
+  {
+    asio::error_code ec;
+    this->get_service().bind(this->get_implementation(), endpoint, ec);
+    asio::detail::throw_error(ec, "bind");
+  }
+
+  /// Bind the acceptor to the given local endpoint.
+  /**
+   * This function binds the socket acceptor to the specified endpoint on the
+   * local machine.
+   *
+   * @param endpoint An endpoint on the local machine to which the socket
+   * acceptor will be bound.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * asio::ip::tcp::endpoint endpoint(asio::ip::tcp::v4(), 12345);
+   * acceptor.open(endpoint.protocol());
+   * asio::error_code ec;
+   * acceptor.bind(endpoint, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  asio::error_code bind(const endpoint_type& endpoint,
+      asio::error_code& ec)
+  {
+    return this->get_service().bind(this->get_implementation(), endpoint, ec);
+  }
+
+  /// Place the acceptor into the state where it will listen for new
+  /// connections.
+  /**
+   * This function puts the socket acceptor into the state where it may accept
+   * new connections.
+   *
+   * @param backlog The maximum length of the queue of pending connections.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  void listen(int backlog = socket_base::max_connections)
+  {
+    asio::error_code ec;
+    this->get_service().listen(this->get_implementation(), backlog, ec);
+    asio::detail::throw_error(ec, "listen");
+  }
+
+  /// Place the acceptor into the state where it will listen for new
+  /// connections.
+  /**
+   * This function puts the socket acceptor into the state where it may accept
+   * new connections.
+   *
+   * @param backlog The maximum length of the queue of pending connections.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::error_code ec;
+   * acceptor.listen(asio::socket_base::max_connections, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  asio::error_code listen(int backlog, asio::error_code& ec)
+  {
+    return this->get_service().listen(this->get_implementation(), backlog, ec);
+  }
+
+  /// Close the acceptor.
+  /**
+   * This function is used to close the acceptor. Any asynchronous accept
+   * operations will be cancelled immediately.
+   *
+   * A subsequent call to open() is required before the acceptor can again be
+   * used to again perform socket accept operations.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  void close()
+  {
+    asio::error_code ec;
+    this->get_service().close(this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "close");
+  }
+
+  /// Close the acceptor.
+  /**
+   * This function is used to close the acceptor. Any asynchronous accept
+   * operations will be cancelled immediately.
+   *
+   * A subsequent call to open() is required before the acceptor can again be
+   * used to again perform socket accept operations.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::error_code ec;
+   * acceptor.close(ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  asio::error_code close(asio::error_code& ec)
+  {
+    return this->get_service().close(this->get_implementation(), ec);
+  }
+
+  /// (Deprecated: Use native_handle().) Get the native acceptor representation.
+  /**
+   * This function may be used to obtain the underlying representation of the
+   * acceptor. This is intended to allow access to native acceptor functionality
+   * that is not otherwise provided.
+   */
+  native_type native()
+  {
+    return this->get_service().native_handle(this->get_implementation());
+  }
+
+  /// Get the native acceptor representation.
+  /**
+   * This function may be used to obtain the underlying representation of the
+   * acceptor. This is intended to allow access to native acceptor functionality
+   * that is not otherwise provided.
+   */
+  native_handle_type native_handle()
+  {
+    return this->get_service().native_handle(this->get_implementation());
+  }
+
+  /// Cancel all asynchronous operations associated with the acceptor.
+  /**
+   * This function causes all outstanding asynchronous connect, send and receive
+   * operations to finish immediately, and the handlers for cancelled operations
+   * will be passed the asio::error::operation_aborted error.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  void cancel()
+  {
+    asio::error_code ec;
+    this->get_service().cancel(this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "cancel");
+  }
+
+  /// Cancel all asynchronous operations associated with the acceptor.
+  /**
+   * This function causes all outstanding asynchronous connect, send and receive
+   * operations to finish immediately, and the handlers for cancelled operations
+   * will be passed the asio::error::operation_aborted error.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   */
+  asio::error_code cancel(asio::error_code& ec)
+  {
+    return this->get_service().cancel(this->get_implementation(), ec);
+  }
+
+  /// Set an option on the acceptor.
+  /**
+   * This function is used to set an option on the acceptor.
+   *
+   * @param option The new option value to be set on the acceptor.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @sa SettableSocketOption @n
+   * asio::socket_base::reuse_address
+   * asio::socket_base::enable_connection_aborted
+   *
+   * @par Example
+   * Setting the SOL_SOCKET/SO_REUSEADDR option:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::acceptor::reuse_address option(true);
+   * acceptor.set_option(option);
+   * @endcode
+   */
+  template <typename SettableSocketOption>
+  void set_option(const SettableSocketOption& option)
+  {
+    asio::error_code ec;
+    this->get_service().set_option(this->get_implementation(), option, ec);
+    asio::detail::throw_error(ec, "set_option");
+  }
+
+  /// Set an option on the acceptor.
+  /**
+   * This function is used to set an option on the acceptor.
+   *
+   * @param option The new option value to be set on the acceptor.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @sa SettableSocketOption @n
+   * asio::socket_base::reuse_address
+   * asio::socket_base::enable_connection_aborted
+   *
+   * @par Example
+   * Setting the SOL_SOCKET/SO_REUSEADDR option:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::acceptor::reuse_address option(true);
+   * asio::error_code ec;
+   * acceptor.set_option(option, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  template <typename SettableSocketOption>
+  asio::error_code set_option(const SettableSocketOption& option,
+      asio::error_code& ec)
+  {
+    return this->get_service().set_option(
+        this->get_implementation(), option, ec);
+  }
+
+  /// Get an option from the acceptor.
+  /**
+   * This function is used to get the current value of an option on the
+   * acceptor.
+   *
+   * @param option The option value to be obtained from the acceptor.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @sa GettableSocketOption @n
+   * asio::socket_base::reuse_address
+   *
+   * @par Example
+   * Getting the value of the SOL_SOCKET/SO_REUSEADDR option:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::acceptor::reuse_address option;
+   * acceptor.get_option(option);
+   * bool is_set = option.get();
+   * @endcode
+   */
+  template <typename GettableSocketOption>
+  void get_option(GettableSocketOption& option)
+  {
+    asio::error_code ec;
+    this->get_service().get_option(this->get_implementation(), option, ec);
+    asio::detail::throw_error(ec, "get_option");
+  }
+
+  /// Get an option from the acceptor.
+  /**
+   * This function is used to get the current value of an option on the
+   * acceptor.
+   *
+   * @param option The option value to be obtained from the acceptor.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @sa GettableSocketOption @n
+   * asio::socket_base::reuse_address
+   *
+   * @par Example
+   * Getting the value of the SOL_SOCKET/SO_REUSEADDR option:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::acceptor::reuse_address option;
+   * asio::error_code ec;
+   * acceptor.get_option(option, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * bool is_set = option.get();
+   * @endcode
+   */
+  template <typename GettableSocketOption>
+  asio::error_code get_option(GettableSocketOption& option,
+      asio::error_code& ec)
+  {
+    return this->get_service().get_option(
+        this->get_implementation(), option, ec);
+  }
+
+  /// Perform an IO control command on the acceptor.
+  /**
+   * This function is used to execute an IO control command on the acceptor.
+   *
+   * @param command The IO control command to be performed on the acceptor.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @sa IoControlCommand @n
+   * asio::socket_base::non_blocking_io
+   *
+   * @par Example
+   * Getting the number of bytes ready to read:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::acceptor::non_blocking_io command(true);
+   * socket.io_control(command);
+   * @endcode
+   */
+  template <typename IoControlCommand>
+  void io_control(IoControlCommand& command)
+  {
+    asio::error_code ec;
+    this->get_service().io_control(this->get_implementation(), command, ec);
+    asio::detail::throw_error(ec, "io_control");
+  }
+
+  /// Perform an IO control command on the acceptor.
+  /**
+   * This function is used to execute an IO control command on the acceptor.
+   *
+   * @param command The IO control command to be performed on the acceptor.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @sa IoControlCommand @n
+   * asio::socket_base::non_blocking_io
+   *
+   * @par Example
+   * Getting the number of bytes ready to read:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::acceptor::non_blocking_io command(true);
+   * asio::error_code ec;
+   * socket.io_control(command, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  template <typename IoControlCommand>
+  asio::error_code io_control(IoControlCommand& command,
+      asio::error_code& ec)
+  {
+    return this->get_service().io_control(
+        this->get_implementation(), command, ec);
+  }
+
+  /// Gets the non-blocking mode of the acceptor.
+  /**
+   * @returns @c true if the acceptor's synchronous operations will fail with
+   * asio::error::would_block if they are unable to perform the requested
+   * operation immediately. If @c false, synchronous operations will block
+   * until complete.
+   *
+   * @note The non-blocking mode has no effect on the behaviour of asynchronous
+   * operations. Asynchronous operations will never fail with the error
+   * asio::error::would_block.
+   */
+  bool non_blocking() const
+  {
+    return this->get_service().non_blocking(this->get_implementation());
+  }
+
+  /// Sets the non-blocking mode of the acceptor.
+  /**
+   * @param mode If @c true, the acceptor's synchronous operations will fail
+   * with asio::error::would_block if they are unable to perform the
+   * requested operation immediately. If @c false, synchronous operations will
+   * block until complete.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note The non-blocking mode has no effect on the behaviour of asynchronous
+   * operations. Asynchronous operations will never fail with the error
+   * asio::error::would_block.
+   */
+  void non_blocking(bool mode)
+  {
+    asio::error_code ec;
+    this->get_service().non_blocking(this->get_implementation(), mode, ec);
+    asio::detail::throw_error(ec, "non_blocking");
+  }
+
+  /// Sets the non-blocking mode of the acceptor.
+  /**
+   * @param mode If @c true, the acceptor's synchronous operations will fail
+   * with asio::error::would_block if they are unable to perform the
+   * requested operation immediately. If @c false, synchronous operations will
+   * block until complete.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @note The non-blocking mode has no effect on the behaviour of asynchronous
+   * operations. Asynchronous operations will never fail with the error
+   * asio::error::would_block.
+   */
+  asio::error_code non_blocking(
+      bool mode, asio::error_code& ec)
+  {
+    return this->get_service().non_blocking(
+        this->get_implementation(), mode, ec);
+  }
+
+  /// Gets the non-blocking mode of the native acceptor implementation.
+  /**
+   * This function is used to retrieve the non-blocking mode of the underlying
+   * native acceptor. This mode has no effect on the behaviour of the acceptor
+   * object's synchronous operations.
+   *
+   * @returns @c true if the underlying acceptor is in non-blocking mode and
+   * direct system calls may fail with asio::error::would_block (or the
+   * equivalent system error).
+   *
+   * @note The current non-blocking mode is cached by the acceptor object.
+   * Consequently, the return value may be incorrect if the non-blocking mode
+   * was set directly on the native acceptor.
+   */
+  bool native_non_blocking() const
+  {
+    return this->get_service().native_non_blocking(this->get_implementation());
+  }
+
+  /// Sets the non-blocking mode of the native acceptor implementation.
+  /**
+   * This function is used to modify the non-blocking mode of the underlying
+   * native acceptor. It has no effect on the behaviour of the acceptor object's
+   * synchronous operations.
+   *
+   * @param mode If @c true, the underlying acceptor is put into non-blocking
+   * mode and direct system calls may fail with asio::error::would_block
+   * (or the equivalent system error).
+   *
+   * @throws asio::system_error Thrown on failure. If the @c mode is
+   * @c false, but the current value of @c non_blocking() is @c true, this
+   * function fails with asio::error::invalid_argument, as the
+   * combination does not make sense.
+   */
+  void native_non_blocking(bool mode)
+  {
+    asio::error_code ec;
+    this->get_service().native_non_blocking(
+        this->get_implementation(), mode, ec);
+    asio::detail::throw_error(ec, "native_non_blocking");
+  }
+
+  /// Sets the non-blocking mode of the native acceptor implementation.
+  /**
+   * This function is used to modify the non-blocking mode of the underlying
+   * native acceptor. It has no effect on the behaviour of the acceptor object's
+   * synchronous operations.
+   *
+   * @param mode If @c true, the underlying acceptor is put into non-blocking
+   * mode and direct system calls may fail with asio::error::would_block
+   * (or the equivalent system error).
+   *
+   * @param ec Set to indicate what error occurred, if any. If the @c mode is
+   * @c false, but the current value of @c non_blocking() is @c true, this
+   * function fails with asio::error::invalid_argument, as the
+   * combination does not make sense.
+   */
+  asio::error_code native_non_blocking(
+      bool mode, asio::error_code& ec)
+  {
+    return this->get_service().native_non_blocking(
+        this->get_implementation(), mode, ec);
+  }
+
+  /// Get the local endpoint of the acceptor.
+  /**
+   * This function is used to obtain the locally bound endpoint of the acceptor.
+   *
+   * @returns An object that represents the local endpoint of the acceptor.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::endpoint endpoint = acceptor.local_endpoint();
+   * @endcode
+   */
+  endpoint_type local_endpoint() const
+  {
+    asio::error_code ec;
+    endpoint_type ep = this->get_service().local_endpoint(
+        this->get_implementation(), ec);
+    asio::detail::throw_error(ec, "local_endpoint");
+    return ep;
+  }
+
+  /// Get the local endpoint of the acceptor.
+  /**
+   * This function is used to obtain the locally bound endpoint of the acceptor.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns An object that represents the local endpoint of the acceptor.
+   * Returns a default-constructed endpoint object if an error occurred and the
+   * error handler did not throw an exception.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::error_code ec;
+   * asio::ip::tcp::endpoint endpoint = acceptor.local_endpoint(ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  endpoint_type local_endpoint(asio::error_code& ec) const
+  {
+    return this->get_service().local_endpoint(this->get_implementation(), ec);
+  }
+
+  /// Accept a new connection.
+  /**
+   * This function is used to accept a new connection from a peer into the
+   * given socket. The function call will block until a new connection has been
+   * accepted successfully or an error occurs.
+   *
+   * @param peer The socket into which the new connection will be accepted.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::socket socket(io_service);
+   * acceptor.accept(socket);
+   * @endcode
+   */
+  template <typename Protocol1, typename SocketService>
+  void accept(basic_socket<Protocol1, SocketService>& peer,
+      typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
+  {
+    asio::error_code ec;
+    this->get_service().accept(this->get_implementation(),
+        peer, static_cast<endpoint_type*>(0), ec);
+    asio::detail::throw_error(ec, "accept");
+  }
+
+  /// Accept a new connection.
+  /**
+   * This function is used to accept a new connection from a peer into the
+   * given socket. The function call will block until a new connection has been
+   * accepted successfully or an error occurs.
+   *
+   * @param peer The socket into which the new connection will be accepted.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::soocket socket(io_service);
+   * asio::error_code ec;
+   * acceptor.accept(socket, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  template <typename Protocol1, typename SocketService>
+  asio::error_code accept(
+      basic_socket<Protocol1, SocketService>& peer,
+      asio::error_code& ec,
+      typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
+  {
+    return this->get_service().accept(this->get_implementation(),
+        peer, static_cast<endpoint_type*>(0), ec);
+  }
+
+  /// Start an asynchronous accept.
+  /**
+   * This function is used to asynchronously accept a new connection into a
+   * socket. The function call always returns immediately.
+   *
+   * @param peer The socket into which the new connection will be accepted.
+   * Ownership of the peer object is retained by the caller, which must
+   * guarantee that it is valid until the handler is called.
+   *
+   * @param handler The handler to be called when the accept operation
+   * completes. Copies will be made of the handler as required. The function
+   * signature of the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error // Result of operation.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @par Example
+   * @code
+   * void accept_handler(const asio::error_code& error)
+   * {
+   *   if (!error)
+   *   {
+   *     // Accept succeeded.
+   *   }
+   * }
+   *
+   * ...
+   *
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::socket socket(io_service);
+   * acceptor.async_accept(socket, accept_handler);
+   * @endcode
+   */
+  template <typename Protocol1, typename SocketService, typename AcceptHandler>
+  ASIO_INITFN_RESULT_TYPE(AcceptHandler,
+      void (asio::error_code))
+  async_accept(basic_socket<Protocol1, SocketService>& peer,
+      ASIO_MOVE_ARG(AcceptHandler) handler,
+      typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a AcceptHandler.
+    ASIO_ACCEPT_HANDLER_CHECK(AcceptHandler, handler) type_check;
+
+    return this->get_service().async_accept(this->get_implementation(),
+        peer, static_cast<endpoint_type*>(0),
+        ASIO_MOVE_CAST(AcceptHandler)(handler));
+  }
+
+  /// Accept a new connection and obtain the endpoint of the peer
+  /**
+   * This function is used to accept a new connection from a peer into the
+   * given socket, and additionally provide the endpoint of the remote peer.
+   * The function call will block until a new connection has been accepted
+   * successfully or an error occurs.
+   *
+   * @param peer The socket into which the new connection will be accepted.
+   *
+   * @param peer_endpoint An endpoint object which will receive the endpoint of
+   * the remote peer.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::socket socket(io_service);
+   * asio::ip::tcp::endpoint endpoint;
+   * acceptor.accept(socket, endpoint);
+   * @endcode
+   */
+  template <typename SocketService>
+  void accept(basic_socket<protocol_type, SocketService>& peer,
+      endpoint_type& peer_endpoint)
+  {
+    asio::error_code ec;
+    this->get_service().accept(this->get_implementation(),
+        peer, &peer_endpoint, ec);
+    asio::detail::throw_error(ec, "accept");
+  }
+
+  /// Accept a new connection and obtain the endpoint of the peer
+  /**
+   * This function is used to accept a new connection from a peer into the
+   * given socket, and additionally provide the endpoint of the remote peer.
+   * The function call will block until a new connection has been accepted
+   * successfully or an error occurs.
+   *
+   * @param peer The socket into which the new connection will be accepted.
+   *
+   * @param peer_endpoint An endpoint object which will receive the endpoint of
+   * the remote peer.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service);
+   * ...
+   * asio::ip::tcp::socket socket(io_service);
+   * asio::ip::tcp::endpoint endpoint;
+   * asio::error_code ec;
+   * acceptor.accept(socket, endpoint, ec);
+   * if (ec)
+   * {
+   *   // An error occurred.
+   * }
+   * @endcode
+   */
+  template <typename SocketService>
+  asio::error_code accept(
+      basic_socket<protocol_type, SocketService>& peer,
+      endpoint_type& peer_endpoint, asio::error_code& ec)
+  {
+    return this->get_service().accept(
+        this->get_implementation(), peer, &peer_endpoint, ec);
+  }
+
+  /// Start an asynchronous accept.
+  /**
+   * This function is used to asynchronously accept a new connection into a
+   * socket, and additionally obtain the endpoint of the remote peer. The
+   * function call always returns immediately.
+   *
+   * @param peer The socket into which the new connection will be accepted.
+   * Ownership of the peer object is retained by the caller, which must
+   * guarantee that it is valid until the handler is called.
+   *
+   * @param peer_endpoint An endpoint object into which the endpoint of the
+   * remote peer will be written. Ownership of the peer_endpoint object is
+   * retained by the caller, which must guarantee that it is valid until the
+   * handler is called.
+   *
+   * @param handler The handler to be called when the accept operation
+   * completes. Copies will be made of the handler as required. The function
+   * signature of the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error // Result of operation.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   */
+  template <typename SocketService, typename AcceptHandler>
+  ASIO_INITFN_RESULT_TYPE(AcceptHandler,
+      void (asio::error_code))
+  async_accept(basic_socket<protocol_type, SocketService>& peer,
+      endpoint_type& peer_endpoint, ASIO_MOVE_ARG(AcceptHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a AcceptHandler.
+    ASIO_ACCEPT_HANDLER_CHECK(AcceptHandler, handler) type_check;
+
+    return this->get_service().async_accept(this->get_implementation(), peer,
+        &peer_endpoint, ASIO_MOVE_CAST(AcceptHandler)(handler));
+  }
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_BASIC_SOCKET_ACCEPTOR_HPP
diff --git a/asio-1.10.6/include/asio/basic_socket_iostream.hpp b/asio-1.10.6/include/asio/basic_socket_iostream.hpp
new file mode 100644
index 0000000..13a4bdd
--- /dev/null
+++ b/asio-1.10.6/include/asio/basic_socket_iostream.hpp
@@ -0,0 +1,18 @@
+//
+// basic_socket_iostream.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_BASIC_SOCKET_IOSTREAM_HPP
+#define ASIO_BASIC_SOCKET_IOSTREAM_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#endif // ASIO_BASIC_SOCKET_IOSTREAM_HPP
diff --git a/asio-1.10.6/include/asio/basic_stream_socket.hpp b/asio-1.10.6/include/asio/basic_stream_socket.hpp
new file mode 100644
index 0000000..e2f38da
--- /dev/null
+++ b/asio-1.10.6/include/asio/basic_stream_socket.hpp
@@ -0,0 +1,847 @@
+//
+// basic_stream_socket.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_BASIC_STREAM_SOCKET_HPP
+#define ASIO_BASIC_STREAM_SOCKET_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include "asio/async_result.hpp"
+#include "asio/basic_socket.hpp"
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+#include "asio/stream_socket_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Provides stream-oriented socket functionality.
+/**
+ * The basic_stream_socket class template provides asynchronous and blocking
+ * stream-oriented socket functionality.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ *
+ * @par Concepts:
+ * AsyncReadStream, AsyncWriteStream, Stream, SyncReadStream, SyncWriteStream.
+ */
+template <typename Protocol,
+    typename StreamSocketService = stream_socket_service<Protocol> >
+class basic_stream_socket
+  : public basic_socket<Protocol, StreamSocketService>
+{
+public:
+  /// (Deprecated: Use native_handle_type.) The native representation of a
+  /// socket.
+  typedef typename StreamSocketService::native_handle_type native_type;
+
+  /// The native representation of a socket.
+  typedef typename StreamSocketService::native_handle_type native_handle_type;
+
+  /// The protocol type.
+  typedef Protocol protocol_type;
+
+  /// The endpoint type.
+  typedef typename Protocol::endpoint endpoint_type;
+
+  /// Construct a basic_stream_socket without opening it.
+  /**
+   * This constructor creates a stream socket without opening it. The socket
+   * needs to be opened and then connected or accepted before data can be sent
+   * or received on it.
+   *
+   * @param io_service The io_service object that the stream socket will use to
+   * dispatch handlers for any asynchronous operations performed on the socket.
+   */
+  explicit basic_stream_socket(asio::io_service& io_service)
+    : basic_socket<Protocol, StreamSocketService>(io_service)
+  {
+  }
+
+  /// Construct and open a basic_stream_socket.
+  /**
+   * This constructor creates and opens a stream socket. The socket needs to be
+   * connected or accepted before data can be sent or received on it.
+   *
+   * @param io_service The io_service object that the stream socket will use to
+   * dispatch handlers for any asynchronous operations performed on the socket.
+   *
+   * @param protocol An object specifying protocol parameters to be used.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_stream_socket(asio::io_service& io_service,
+      const protocol_type& protocol)
+    : basic_socket<Protocol, StreamSocketService>(io_service, protocol)
+  {
+  }
+
+  /// Construct a basic_stream_socket, opening it and binding it to the given
+  /// local endpoint.
+  /**
+   * This constructor creates a stream socket and automatically opens it bound
+   * to the specified endpoint on the local machine. The protocol used is the
+   * protocol associated with the given endpoint.
+   *
+   * @param io_service The io_service object that the stream socket will use to
+   * dispatch handlers for any asynchronous operations performed on the socket.
+   *
+   * @param endpoint An endpoint on the local machine to which the stream
+   * socket will be bound.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_stream_socket(asio::io_service& io_service,
+      const endpoint_type& endpoint)
+    : basic_socket<Protocol, StreamSocketService>(io_service, endpoint)
+  {
+  }
+
+  /// Construct a basic_stream_socket on an existing native socket.
+  /**
+   * This constructor creates a stream socket object to hold an existing native
+   * socket.
+   *
+   * @param io_service The io_service object that the stream socket will use to
+   * dispatch handlers for any asynchronous operations performed on the socket.
+   *
+   * @param protocol An object specifying protocol parameters to be used.
+   *
+   * @param native_socket The new underlying socket implementation.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  basic_stream_socket(asio::io_service& io_service,
+      const protocol_type& protocol, const native_handle_type& native_socket)
+    : basic_socket<Protocol, StreamSocketService>(
+        io_service, protocol, native_socket)
+  {
+  }
+
+  /// Move-construct a basic_stream_socket from another.
+  /**
+   * This constructor moves a stream socket from one object to another.
+   *
+   * @param other The other basic_stream_socket object from which the move
+   * will occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_stream_socket(io_service&) constructor.
+   */
+  basic_stream_socket(basic_stream_socket&& other)
+    : basic_socket<Protocol, StreamSocketService>(
+        ASIO_MOVE_CAST(basic_stream_socket)(other))
+  {
+  }
+
+  /// Move-assign a basic_stream_socket from another.
+  /**
+   * This assignment operator moves a stream socket from one object to another.
+   *
+   * @param other The other basic_stream_socket object from which the move
+   * will occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_stream_socket(io_service&) constructor.
+   */
+  basic_stream_socket& operator=(basic_stream_socket&& other)
+  {
+    basic_socket<Protocol, StreamSocketService>::operator=(
+        ASIO_MOVE_CAST(basic_stream_socket)(other));
+    return *this;
+  }
+
+  /// Move-construct a basic_stream_socket from a socket of another protocol
+  /// type.
+  /**
+   * This constructor moves a stream socket from one object to another.
+   *
+   * @param other The other basic_stream_socket object from which the move
+   * will occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_stream_socket(io_service&) constructor.
+   */
+  template <typename Protocol1, typename StreamSocketService1>
+  basic_stream_socket(
+      basic_stream_socket<Protocol1, StreamSocketService1>&& other,
+      typename enable_if<is_convertible<Protocol1, Protocol>::value>::type* = 0)
+    : basic_socket<Protocol, StreamSocketService>(
+        ASIO_MOVE_CAST2(basic_stream_socket<
+          Protocol1, StreamSocketService1>)(other))
+  {
+  }
+
+  /// Move-assign a basic_stream_socket from a socket of another protocol type.
+  /**
+   * This assignment operator moves a stream socket from one object to another.
+   *
+   * @param other The other basic_stream_socket object from which the move
+   * will occur.
+   *
+   * @note Following the move, the moved-from object is in the same state as if
+   * constructed using the @c basic_stream_socket(io_service&) constructor.
+   */
+  template <typename Protocol1, typename StreamSocketService1>
+  typename enable_if<is_convertible<Protocol1, Protocol>::value,
+      basic_stream_socket>::type& operator=(
+        basic_stream_socket<Protocol1, StreamSocketService1>&& other)
+  {
+    basic_socket<Protocol, StreamSocketService>::operator=(
+        ASIO_MOVE_CAST2(basic_stream_socket<
+          Protocol1, StreamSocketService1>)(other));
+    return *this;
+  }
+
+  /// Send some data on the socket.
+  /**
+   * This function is used to send data on the stream socket. The function
+   * call will block until one or more bytes of the data has been sent
+   * successfully, or an until error occurs.
+   *
+   * @param buffers One or more data buffers to be sent on the socket.
+   *
+   * @returns The number of bytes sent.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note The send operation may not transmit all of the data to the peer.
+   * Consider using the @ref write function if you need to ensure that all data
+   * is written before the blocking operation completes.
+   *
+   * @par Example
+   * To send a single data buffer use the @ref buffer function as follows:
+   * @code
+   * socket.send(asio::buffer(data, size));
+   * @endcode
+   * See the @ref buffer documentation for information on sending multiple
+   * buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename ConstBufferSequence>
+  std::size_t send(const ConstBufferSequence& buffers)
+  {
+    asio::error_code ec;
+    std::size_t s = this->get_service().send(
+        this->get_implementation(), buffers, 0, ec);
+    asio::detail::throw_error(ec, "send");
+    return s;
+  }
+
+  /// Send some data on the socket.
+  /**
+   * This function is used to send data on the stream socket. The function
+   * call will block until one or more bytes of the data has been sent
+   * successfully, or an until error occurs.
+   *
+   * @param buffers One or more data buffers to be sent on the socket.
+   *
+   * @param flags Flags specifying how the send call is to be made.
+   *
+   * @returns The number of bytes sent.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note The send operation may not transmit all of the data to the peer.
+   * Consider using the @ref write function if you need to ensure that all data
+   * is written before the blocking operation completes.
+   *
+   * @par Example
+   * To send a single data buffer use the @ref buffer function as follows:
+   * @code
+   * socket.send(asio::buffer(data, size), 0);
+   * @endcode
+   * See the @ref buffer documentation for information on sending multiple
+   * buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename ConstBufferSequence>
+  std::size_t send(const ConstBufferSequence& buffers,
+      socket_base::message_flags flags)
+  {
+    asio::error_code ec;
+    std::size_t s = this->get_service().send(
+        this->get_implementation(), buffers, flags, ec);
+    asio::detail::throw_error(ec, "send");
+    return s;
+  }
+
+  /// Send some data on the socket.
+  /**
+   * This function is used to send data on the stream socket. The function
+   * call will block until one or more bytes of the data has been sent
+   * successfully, or an until error occurs.
+   *
+   * @param buffers One or more data buffers to be sent on the socket.
+   *
+   * @param flags Flags specifying how the send call is to be made.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns The number of bytes sent. Returns 0 if an error occurred.
+   *
+   * @note The send operation may not transmit all of the data to the peer.
+   * Consider using the @ref write function if you need to ensure that all data
+   * is written before the blocking operation completes.
+   */
+  template <typename ConstBufferSequence>
+  std::size_t send(const ConstBufferSequence& buffers,
+      socket_base::message_flags flags, asio::error_code& ec)
+  {
+    return this->get_service().send(
+        this->get_implementation(), buffers, flags, ec);
+  }
+
+  /// Start an asynchronous send.
+  /**
+   * This function is used to asynchronously send data on the stream socket.
+   * The function call always returns immediately.
+   *
+   * @param buffers One or more data buffers to be sent on the socket. Although
+   * the buffers object may be copied as necessary, ownership of the underlying
+   * memory blocks is retained by the caller, which must guarantee that they
+   * remain valid until the handler is called.
+   *
+   * @param handler The handler to be called when the send operation completes.
+   * Copies will be made of the handler as required. The function signature of
+   * the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error, // Result of operation.
+   *   std::size_t bytes_transferred           // Number of bytes sent.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @note The send operation may not transmit all of the data to the peer.
+   * Consider using the @ref async_write function if you need to ensure that all
+   * data is written before the asynchronous operation completes.
+   *
+   * @par Example
+   * To send a single data buffer use the @ref buffer function as follows:
+   * @code
+   * socket.async_send(asio::buffer(data, size), handler);
+   * @endcode
+   * See the @ref buffer documentation for information on sending multiple
+   * buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename ConstBufferSequence, typename WriteHandler>
+  ASIO_INITFN_RESULT_TYPE(WriteHandler,
+      void (asio::error_code, std::size_t))
+  async_send(const ConstBufferSequence& buffers,
+      ASIO_MOVE_ARG(WriteHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a WriteHandler.
+    ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check;
+
+    return this->get_service().async_send(
+        this->get_implementation(), buffers, 0,
+        ASIO_MOVE_CAST(WriteHandler)(handler));
+  }
+
+  /// Start an asynchronous send.
+  /**
+   * This function is used to asynchronously send data on the stream socket.
+   * The function call always returns immediately.
+   *
+   * @param buffers One or more data buffers to be sent on the socket. Although
+   * the buffers object may be copied as necessary, ownership of the underlying
+   * memory blocks is retained by the caller, which must guarantee that they
+   * remain valid until the handler is called.
+   *
+   * @param flags Flags specifying how the send call is to be made.
+   *
+   * @param handler The handler to be called when the send operation completes.
+   * Copies will be made of the handler as required. The function signature of
+   * the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error, // Result of operation.
+   *   std::size_t bytes_transferred           // Number of bytes sent.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @note The send operation may not transmit all of the data to the peer.
+   * Consider using the @ref async_write function if you need to ensure that all
+   * data is written before the asynchronous operation completes.
+   *
+   * @par Example
+   * To send a single data buffer use the @ref buffer function as follows:
+   * @code
+   * socket.async_send(asio::buffer(data, size), 0, handler);
+   * @endcode
+   * See the @ref buffer documentation for information on sending multiple
+   * buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename ConstBufferSequence, typename WriteHandler>
+  ASIO_INITFN_RESULT_TYPE(WriteHandler,
+      void (asio::error_code, std::size_t))
+  async_send(const ConstBufferSequence& buffers,
+      socket_base::message_flags flags,
+      ASIO_MOVE_ARG(WriteHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a WriteHandler.
+    ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check;
+
+    return this->get_service().async_send(
+        this->get_implementation(), buffers, flags,
+        ASIO_MOVE_CAST(WriteHandler)(handler));
+  }
+
+  /// Receive some data on the socket.
+  /**
+   * This function is used to receive data on the stream socket. The function
+   * call will block until one or more bytes of data has been received
+   * successfully, or until an error occurs.
+   *
+   * @param buffers One or more buffers into which the data will be received.
+   *
+   * @returns The number of bytes received.
+   *
+   * @throws asio::system_error Thrown on failure. An error code of
+   * asio::error::eof indicates that the connection was closed by the
+   * peer.
+   *
+   * @note The receive operation may not receive all of the requested number of
+   * bytes. Consider using the @ref read function if you need to ensure that the
+   * requested amount of data is read before the blocking operation completes.
+   *
+   * @par Example
+   * To receive into a single data buffer use the @ref buffer function as
+   * follows:
+   * @code
+   * socket.receive(asio::buffer(data, size));
+   * @endcode
+   * See the @ref buffer documentation for information on receiving into
+   * multiple buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename MutableBufferSequence>
+  std::size_t receive(const MutableBufferSequence& buffers)
+  {
+    asio::error_code ec;
+    std::size_t s = this->get_service().receive(
+        this->get_implementation(), buffers, 0, ec);
+    asio::detail::throw_error(ec, "receive");
+    return s;
+  }
+
+  /// Receive some data on the socket.
+  /**
+   * This function is used to receive data on the stream socket. The function
+   * call will block until one or more bytes of data has been received
+   * successfully, or until an error occurs.
+   *
+   * @param buffers One or more buffers into which the data will be received.
+   *
+   * @param flags Flags specifying how the receive call is to be made.
+   *
+   * @returns The number of bytes received.
+   *
+   * @throws asio::system_error Thrown on failure. An error code of
+   * asio::error::eof indicates that the connection was closed by the
+   * peer.
+   *
+   * @note The receive operation may not receive all of the requested number of
+   * bytes. Consider using the @ref read function if you need to ensure that the
+   * requested amount of data is read before the blocking operation completes.
+   *
+   * @par Example
+   * To receive into a single data buffer use the @ref buffer function as
+   * follows:
+   * @code
+   * socket.receive(asio::buffer(data, size), 0);
+   * @endcode
+   * See the @ref buffer documentation for information on receiving into
+   * multiple buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename MutableBufferSequence>
+  std::size_t receive(const MutableBufferSequence& buffers,
+      socket_base::message_flags flags)
+  {
+    asio::error_code ec;
+    std::size_t s = this->get_service().receive(
+        this->get_implementation(), buffers, flags, ec);
+    asio::detail::throw_error(ec, "receive");
+    return s;
+  }
+
+  /// Receive some data on a connected socket.
+  /**
+   * This function is used to receive data on the stream socket. The function
+   * call will block until one or more bytes of data has been received
+   * successfully, or until an error occurs.
+   *
+   * @param buffers One or more buffers into which the data will be received.
+   *
+   * @param flags Flags specifying how the receive call is to be made.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns The number of bytes received. Returns 0 if an error occurred.
+   *
+   * @note The receive operation may not receive all of the requested number of
+   * bytes. Consider using the @ref read function if you need to ensure that the
+   * requested amount of data is read before the blocking operation completes.
+   */
+  template <typename MutableBufferSequence>
+  std::size_t receive(const MutableBufferSequence& buffers,
+      socket_base::message_flags flags, asio::error_code& ec)
+  {
+    return this->get_service().receive(
+        this->get_implementation(), buffers, flags, ec);
+  }
+
+  /// Start an asynchronous receive.
+  /**
+   * This function is used to asynchronously receive data from the stream
+   * socket. The function call always returns immediately.
+   *
+   * @param buffers One or more buffers into which the data will be received.
+   * Although the buffers object may be copied as necessary, ownership of the
+   * underlying memory blocks is retained by the caller, which must guarantee
+   * that they remain valid until the handler is called.
+   *
+   * @param handler The handler to be called when the receive operation
+   * completes. Copies will be made of the handler as required. The function
+   * signature of the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error, // Result of operation.
+   *   std::size_t bytes_transferred           // Number of bytes received.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @note The receive operation may not receive all of the requested number of
+   * bytes. Consider using the @ref async_read function if you need to ensure
+   * that the requested amount of data is received before the asynchronous
+   * operation completes.
+   *
+   * @par Example
+   * To receive into a single data buffer use the @ref buffer function as
+   * follows:
+   * @code
+   * socket.async_receive(asio::buffer(data, size), handler);
+   * @endcode
+   * See the @ref buffer documentation for information on receiving into
+   * multiple buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename MutableBufferSequence, typename ReadHandler>
+  ASIO_INITFN_RESULT_TYPE(ReadHandler,
+      void (asio::error_code, std::size_t))
+  async_receive(const MutableBufferSequence& buffers,
+      ASIO_MOVE_ARG(ReadHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a ReadHandler.
+    ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
+
+    return this->get_service().async_receive(this->get_implementation(),
+        buffers, 0, ASIO_MOVE_CAST(ReadHandler)(handler));
+  }
+
+  /// Start an asynchronous receive.
+  /**
+   * This function is used to asynchronously receive data from the stream
+   * socket. The function call always returns immediately.
+   *
+   * @param buffers One or more buffers into which the data will be received.
+   * Although the buffers object may be copied as necessary, ownership of the
+   * underlying memory blocks is retained by the caller, which must guarantee
+   * that they remain valid until the handler is called.
+   *
+   * @param flags Flags specifying how the receive call is to be made.
+   *
+   * @param handler The handler to be called when the receive operation
+   * completes. Copies will be made of the handler as required. The function
+   * signature of the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error, // Result of operation.
+   *   std::size_t bytes_transferred           // Number of bytes received.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @note The receive operation may not receive all of the requested number of
+   * bytes. Consider using the @ref async_read function if you need to ensure
+   * that the requested amount of data is received before the asynchronous
+   * operation completes.
+   *
+   * @par Example
+   * To receive into a single data buffer use the @ref buffer function as
+   * follows:
+   * @code
+   * socket.async_receive(asio::buffer(data, size), 0, handler);
+   * @endcode
+   * See the @ref buffer documentation for information on receiving into
+   * multiple buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename MutableBufferSequence, typename ReadHandler>
+  ASIO_INITFN_RESULT_TYPE(ReadHandler,
+      void (asio::error_code, std::size_t))
+  async_receive(const MutableBufferSequence& buffers,
+      socket_base::message_flags flags,
+      ASIO_MOVE_ARG(ReadHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a ReadHandler.
+    ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
+
+    return this->get_service().async_receive(this->get_implementation(),
+        buffers, flags, ASIO_MOVE_CAST(ReadHandler)(handler));
+  }
+
+  /// Write some data to the socket.
+  /**
+   * This function is used to write data to the stream socket. The function call
+   * will block until one or more bytes of the data has been written
+   * successfully, or until an error occurs.
+   *
+   * @param buffers One or more data buffers to be written to the socket.
+   *
+   * @returns The number of bytes written.
+   *
+   * @throws asio::system_error Thrown on failure. An error code of
+   * asio::error::eof indicates that the connection was closed by the
+   * peer.
+   *
+   * @note The write_some operation may not transmit all of the data to the
+   * peer. Consider using the @ref write function if you need to ensure that
+   * all data is written before the blocking operation completes.
+   *
+   * @par Example
+   * To write a single data buffer use the @ref buffer function as follows:
+   * @code
+   * socket.write_some(asio::buffer(data, size));
+   * @endcode
+   * See the @ref buffer documentation for information on writing multiple
+   * buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename ConstBufferSequence>
+  std::size_t write_some(const ConstBufferSequence& buffers)
+  {
+    asio::error_code ec;
+    std::size_t s = this->get_service().send(
+        this->get_implementation(), buffers, 0, ec);
+    asio::detail::throw_error(ec, "write_some");
+    return s;
+  }
+
+  /// Write some data to the socket.
+  /**
+   * This function is used to write data to the stream socket. The function call
+   * will block until one or more bytes of the data has been written
+   * successfully, or until an error occurs.
+   *
+   * @param buffers One or more data buffers to be written to the socket.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns The number of bytes written. Returns 0 if an error occurred.
+   *
+   * @note The write_some operation may not transmit all of the data to the
+   * peer. Consider using the @ref write function if you need to ensure that
+   * all data is written before the blocking operation completes.
+   */
+  template <typename ConstBufferSequence>
+  std::size_t write_some(const ConstBufferSequence& buffers,
+      asio::error_code& ec)
+  {
+    return this->get_service().send(this->get_implementation(), buffers, 0, ec);
+  }
+
+  /// Start an asynchronous write.
+  /**
+   * This function is used to asynchronously write data to the stream socket.
+   * The function call always returns immediately.
+   *
+   * @param buffers One or more data buffers to be written to the socket.
+   * Although the buffers object may be copied as necessary, ownership of the
+   * underlying memory blocks is retained by the caller, which must guarantee
+   * that they remain valid until the handler is called.
+   *
+   * @param handler The handler to be called when the write operation completes.
+   * Copies will be made of the handler as required. The function signature of
+   * the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error, // Result of operation.
+   *   std::size_t bytes_transferred           // Number of bytes written.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @note The write operation may not transmit all of the data to the peer.
+   * Consider using the @ref async_write function if you need to ensure that all
+   * data is written before the asynchronous operation completes.
+   *
+   * @par Example
+   * To write a single data buffer use the @ref buffer function as follows:
+   * @code
+   * socket.async_write_some(asio::buffer(data, size), handler);
+   * @endcode
+   * See the @ref buffer documentation for information on writing multiple
+   * buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename ConstBufferSequence, typename WriteHandler>
+  ASIO_INITFN_RESULT_TYPE(WriteHandler,
+      void (asio::error_code, std::size_t))
+  async_write_some(const ConstBufferSequence& buffers,
+      ASIO_MOVE_ARG(WriteHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a WriteHandler.
+    ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check;
+
+    return this->get_service().async_send(this->get_implementation(),
+        buffers, 0, ASIO_MOVE_CAST(WriteHandler)(handler));
+  }
+
+  /// Read some data from the socket.
+  /**
+   * This function is used to read data from the stream socket. The function
+   * call will block until one or more bytes of data has been read successfully,
+   * or until an error occurs.
+   *
+   * @param buffers One or more buffers into which the data will be read.
+   *
+   * @returns The number of bytes read.
+   *
+   * @throws asio::system_error Thrown on failure. An error code of
+   * asio::error::eof indicates that the connection was closed by the
+   * peer.
+   *
+   * @note The read_some operation may not read all of the requested number of
+   * bytes. Consider using the @ref read function if you need to ensure that
+   * the requested amount of data is read before the blocking operation
+   * completes.
+   *
+   * @par Example
+   * To read into a single data buffer use the @ref buffer function as follows:
+   * @code
+   * socket.read_some(asio::buffer(data, size));
+   * @endcode
+   * See the @ref buffer documentation for information on reading into multiple
+   * buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename MutableBufferSequence>
+  std::size_t read_some(const MutableBufferSequence& buffers)
+  {
+    asio::error_code ec;
+    std::size_t s = this->get_service().receive(
+        this->get_implementation(), buffers, 0, ec);
+    asio::detail::throw_error(ec, "read_some");
+    return s;
+  }
+
+  /// Read some data from the socket.
+  /**
+   * This function is used to read data from the stream socket. The function
+   * call will block until one or more bytes of data has been read successfully,
+   * or until an error occurs.
+   *
+   * @param buffers One or more buffers into which the data will be read.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns The number of bytes read. Returns 0 if an error occurred.
+   *
+   * @note The read_some operation may not read all of the requested number of
+   * bytes. Consider using the @ref read function if you need to ensure that
+   * the requested amount of data is read before the blocking operation
+   * completes.
+   */
+  template <typename MutableBufferSequence>
+  std::size_t read_some(const MutableBufferSequence& buffers,
+      asio::error_code& ec)
+  {
+    return this->get_service().receive(
+        this->get_implementation(), buffers, 0, ec);
+  }
+
+  /// Start an asynchronous read.
+  /**
+   * This function is used to asynchronously read data from the stream socket.
+   * The function call always returns immediately.
+   *
+   * @param buffers One or more buffers into which the data will be read.
+   * Although the buffers object may be copied as necessary, ownership of the
+   * underlying memory blocks is retained by the caller, which must guarantee
+   * that they remain valid until the handler is called.
+   *
+   * @param handler The handler to be called when the read operation completes.
+   * Copies will be made of the handler as required. The function signature of
+   * the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error, // Result of operation.
+   *   std::size_t bytes_transferred           // Number of bytes read.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @note The read operation may not read all of the requested number of bytes.
+   * Consider using the @ref async_read function if you need to ensure that the
+   * requested amount of data is read before the asynchronous operation
+   * completes.
+   *
+   * @par Example
+   * To read into a single data buffer use the @ref buffer function as follows:
+   * @code
+   * socket.async_read_some(asio::buffer(data, size), handler);
+   * @endcode
+   * See the @ref buffer documentation for information on reading into multiple
+   * buffers in one go, and how to use it with arrays, boost::array or
+   * std::vector.
+   */
+  template <typename MutableBufferSequence, typename ReadHandler>
+  ASIO_INITFN_RESULT_TYPE(ReadHandler,
+      void (asio::error_code, std::size_t))
+  async_read_some(const MutableBufferSequence& buffers,
+      ASIO_MOVE_ARG(ReadHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a ReadHandler.
+    ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
+
+    return this->get_service().async_receive(this->get_implementation(),
+        buffers, 0, ASIO_MOVE_CAST(ReadHandler)(handler));
+  }
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_BASIC_STREAM_SOCKET_HPP
diff --git a/asio-1.10.6/include/asio/basic_streambuf_fwd.hpp b/asio-1.10.6/include/asio/basic_streambuf_fwd.hpp
new file mode 100644
index 0000000..bbe37dc
--- /dev/null
+++ b/asio-1.10.6/include/asio/basic_streambuf_fwd.hpp
@@ -0,0 +1,18 @@
+//
+// basic_streambuf_fwd.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_BASIC_STREAMBUF_FWD_HPP
+#define ASIO_BASIC_STREAMBUF_FWD_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#endif // ASIO_BASIC_STREAMBUF_FWD_HPP
diff --git a/asio-1.10.6/include/asio/buffer.hpp b/asio-1.10.6/include/asio/buffer.hpp
new file mode 100644
index 0000000..e29dc25
--- /dev/null
+++ b/asio-1.10.6/include/asio/buffer.hpp
@@ -0,0 +1,2087 @@
+//
+// buffer.hpp
+// ~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_BUFFER_HPP
+#define ASIO_BUFFER_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include <cstring>
+#include <string>
+#include <vector>
+#include "asio/detail/array_fwd.hpp"
+
+
+#if defined(__GNUC__)
+# if defined(_GLIBCXX_DEBUG)
+# endif // defined(_GLIBCXX_DEBUG)
+#endif // defined(__GNUC__)
+
+
+
+#if defined(ASIO_ENABLE_ARRAY_BUFFER_WORKAROUND)
+# include "asio/detail/type_traits.hpp"
+#endif // defined(ASIO_ENABLE_ARRAY_BUFFER_WORKAROUND)
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+class mutable_buffer;
+class const_buffer;
+
+namespace detail {
+void* buffer_cast_helper(const mutable_buffer&);
+const void* buffer_cast_helper(const const_buffer&);
+std::size_t buffer_size_helper(const mutable_buffer&);
+std::size_t buffer_size_helper(const const_buffer&);
+} // namespace detail
+
+/// Holds a buffer that can be modified.
+/**
+ * The mutable_buffer class provides a safe representation of a buffer that can
+ * be modified. It does not own the underlying data, and so is cheap to copy or
+ * assign.
+ *
+ * @par Accessing Buffer Contents
+ *
+ * The contents of a buffer may be accessed using the @ref buffer_size
+ * and @ref buffer_cast functions:
+ *
+ * @code asio::mutable_buffer b1 = ...;
+ * std::size_t s1 = asio::buffer_size(b1);
+ * unsigned char* p1 = asio::buffer_cast<unsigned char*>(b1);
+ * @endcode
+ *
+ * The asio::buffer_cast function permits violations of type safety, so
+ * uses of it in application code should be carefully considered.
+ */
+class mutable_buffer
+{
+public:
+  /// Construct an empty buffer.
+  mutable_buffer()
+    : data_(0),
+      size_(0)
+  {
+  }
+
+  /// Construct a buffer to represent a given memory range.
+  mutable_buffer(void* data, std::size_t size)
+    : data_(data),
+      size_(size)
+  {
+  }
+
+
+private:
+  friend void* asio::detail::buffer_cast_helper(
+      const mutable_buffer& b);
+  friend std::size_t asio::detail::buffer_size_helper(
+      const mutable_buffer& b);
+
+  void* data_;
+  std::size_t size_;
+
+};
+
+namespace detail {
+
+inline void* buffer_cast_helper(const mutable_buffer& b)
+{
+  return b.data_;
+}
+
+inline std::size_t buffer_size_helper(const mutable_buffer& b)
+{
+  return b.size_;
+}
+
+} // namespace detail
+
+/// Adapts a single modifiable buffer so that it meets the requirements of the
+/// MutableBufferSequence concept.
+class mutable_buffers_1
+  : public mutable_buffer
+{
+public:
+  /// The type for each element in the list of buffers.
+  typedef mutable_buffer value_type;
+
+  /// A random-access iterator type that may be used to read elements.
+  typedef const mutable_buffer* const_iterator;
+
+  /// Construct to represent a given memory range.
+  mutable_buffers_1(void* data, std::size_t size)
+    : mutable_buffer(data, size)
+  {
+  }
+
+  /// Construct to represent a single modifiable buffer.
+  explicit mutable_buffers_1(const mutable_buffer& b)
+    : mutable_buffer(b)
+  {
+  }
+
+  /// Get a random-access iterator to the first element.
+  const_iterator begin() const
+  {
+    return this;
+  }
+
+  /// Get a random-access iterator for one past the last element.
+  const_iterator end() const
+  {
+    return begin() + 1;
+  }
+};
+
+/// Holds a buffer that cannot be modified.
+/**
+ * The const_buffer class provides a safe representation of a buffer that cannot
+ * be modified. It does not own the underlying data, and so is cheap to copy or
+ * assign.
+ *
+ * @par Accessing Buffer Contents
+ *
+ * The contents of a buffer may be accessed using the @ref buffer_size
+ * and @ref buffer_cast functions:
+ *
+ * @code asio::const_buffer b1 = ...;
+ * std::size_t s1 = asio::buffer_size(b1);
+ * const unsigned char* p1 = asio::buffer_cast<const unsigned char*>(b1);
+ * @endcode
+ *
+ * The asio::buffer_cast function permits violations of type safety, so
+ * uses of it in application code should be carefully considered.
+ */
+class const_buffer
+{
+public:
+  /// Construct an empty buffer.
+  const_buffer()
+    : data_(0),
+      size_(0)
+  {
+  }
+
+  /// Construct a buffer to represent a given memory range.
+  const_buffer(const void* data, std::size_t size)
+    : data_(data),
+      size_(size)
+  {
+  }
+
+  /// Construct a non-modifiable buffer from a modifiable one.
+  const_buffer(const mutable_buffer& b)
+    : data_(asio::detail::buffer_cast_helper(b)),
+      size_(asio::detail::buffer_size_helper(b))
+  {
+  }
+
+
+private:
+  friend const void* asio::detail::buffer_cast_helper(
+      const const_buffer& b);
+  friend std::size_t asio::detail::buffer_size_helper(
+      const const_buffer& b);
+
+  const void* data_;
+  std::size_t size_;
+
+};
+
+namespace detail {
+
+inline const void* buffer_cast_helper(const const_buffer& b)
+{
+  return b.data_;
+}
+
+inline std::size_t buffer_size_helper(const const_buffer& b)
+{
+  return b.size_;
+}
+
+} // namespace detail
+
+/// Adapts a single non-modifiable buffer so that it meets the requirements of
+/// the ConstBufferSequence concept.
+class const_buffers_1
+  : public const_buffer
+{
+public:
+  /// The type for each element in the list of buffers.
+  typedef const_buffer value_type;
+
+  /// A random-access iterator type that may be used to read elements.
+  typedef const const_buffer* const_iterator;
+
+  /// Construct to represent a given memory range.
+  const_buffers_1(const void* data, std::size_t size)
+    : const_buffer(data, size)
+  {
+  }
+
+  /// Construct to represent a single non-modifiable buffer.
+  explicit const_buffers_1(const const_buffer& b)
+    : const_buffer(b)
+  {
+  }
+
+  /// Get a random-access iterator to the first element.
+  const_iterator begin() const
+  {
+    return this;
+  }
+
+  /// Get a random-access iterator for one past the last element.
+  const_iterator end() const
+  {
+    return begin() + 1;
+  }
+};
+
+/// An implementation of both the ConstBufferSequence and MutableBufferSequence
+/// concepts to represent a null buffer sequence.
+class null_buffers
+{
+public:
+  /// The type for each element in the list of buffers.
+  typedef mutable_buffer value_type;
+
+  /// A random-access iterator type that may be used to read elements.
+  typedef const mutable_buffer* const_iterator;
+
+  /// Get a random-access iterator to the first element.
+  const_iterator begin() const
+  {
+    return &buf_;
+  }
+
+  /// Get a random-access iterator for one past the last element.
+  const_iterator end() const
+  {
+    return &buf_;
+  }
+
+private:
+  mutable_buffer buf_;
+};
+
+/** @defgroup buffer_size asio::buffer_size
+ *
+ * @brief The asio::buffer_size function determines the total number of
+ * bytes in a buffer or buffer sequence.
+ */
+/*@{*/
+
+/// Get the number of bytes in a modifiable buffer.
+inline std::size_t buffer_size(const mutable_buffer& b)
+{
+  return detail::buffer_size_helper(b);
+}
+
+/// Get the number of bytes in a modifiable buffer.
+inline std::size_t buffer_size(const mutable_buffers_1& b)
+{
+  return detail::buffer_size_helper(b);
+}
+
+/// Get the number of bytes in a non-modifiable buffer.
+inline std::size_t buffer_size(const const_buffer& b)
+{
+  return detail::buffer_size_helper(b);
+}
+
+/// Get the number of bytes in a non-modifiable buffer.
+inline std::size_t buffer_size(const const_buffers_1& b)
+{
+  return detail::buffer_size_helper(b);
+}
+
+/// Get the total number of bytes in a buffer sequence.
+/** 
+ * The @c BufferSequence template parameter may meet either of the @c
+ * ConstBufferSequence or @c MutableBufferSequence type requirements.
+ */
+template <typename BufferSequence>
+inline std::size_t buffer_size(const BufferSequence& b)
+{
+  std::size_t total_buffer_size = 0;
+
+  typename BufferSequence::const_iterator iter = b.begin();
+  typename BufferSequence::const_iterator end = b.end();
+  for (; iter != end; ++iter)
+    total_buffer_size += detail::buffer_size_helper(*iter);
+
+  return total_buffer_size;
+}
+
+/*@}*/
+
+/** @defgroup buffer_cast asio::buffer_cast
+ *
+ * @brief The asio::buffer_cast function is used to obtain a pointer to
+ * the underlying memory region associated with a buffer.
+ *
+ * @par Examples:
+ *
+ * To access the memory of a non-modifiable buffer, use:
+ * @code asio::const_buffer b1 = ...;
+ * const unsigned char* p1 = asio::buffer_cast<const unsigned char*>(b1);
+ * @endcode
+ *
+ * To access the memory of a modifiable buffer, use:
+ * @code asio::mutable_buffer b2 = ...;
+ * unsigned char* p2 = asio::buffer_cast<unsigned char*>(b2);
+ * @endcode
+ *
+ * The asio::buffer_cast function permits violations of type safety, so
+ * uses of it in application code should be carefully considered.
+ */
+/*@{*/
+
+/// Cast a non-modifiable buffer to a specified pointer to POD type.
+template <typename PointerToPodType>
+inline PointerToPodType buffer_cast(const mutable_buffer& b)
+{
+  return static_cast<PointerToPodType>(detail::buffer_cast_helper(b));
+}
+
+/// Cast a non-modifiable buffer to a specified pointer to POD type.
+template <typename PointerToPodType>
+inline PointerToPodType buffer_cast(const const_buffer& b)
+{
+  return static_cast<PointerToPodType>(detail::buffer_cast_helper(b));
+}
+
+/*@}*/
+
+/// Create a new modifiable buffer that is offset from the start of another.
+/**
+ * @relates mutable_buffer
+ */
+inline mutable_buffer operator+(const mutable_buffer& b, std::size_t start)
+{
+  if (start > buffer_size(b))
+    return mutable_buffer();
+  char* new_data = buffer_cast<char*>(b) + start;
+  std::size_t new_size = buffer_size(b) - start;
+  return mutable_buffer(new_data, new_size
+      );
+}
+
+/// Create a new modifiable buffer that is offset from the start of another.
+/**
+ * @relates mutable_buffer
+ */
+inline mutable_buffer operator+(std::size_t start, const mutable_buffer& b)
+{
+  if (start > buffer_size(b))
+    return mutable_buffer();
+  char* new_data = buffer_cast<char*>(b) + start;
+  std::size_t new_size = buffer_size(b) - start;
+  return mutable_buffer(new_data, new_size
+      );
+}
+
+/// Create a new non-modifiable buffer that is offset from the start of another.
+/**
+ * @relates const_buffer
+ */
+inline const_buffer operator+(const const_buffer& b, std::size_t start)
+{
+  if (start > buffer_size(b))
+    return const_buffer();
+  const char* new_data = buffer_cast<const char*>(b) + start;
+  std::size_t new_size = buffer_size(b) - start;
+  return const_buffer(new_data, new_size
+      );
+}
+
+/// Create a new non-modifiable buffer that is offset from the start of another.
+/**
+ * @relates const_buffer
+ */
+inline const_buffer operator+(std::size_t start, const const_buffer& b)
+{
+  if (start > buffer_size(b))
+    return const_buffer();
+  const char* new_data = buffer_cast<const char*>(b) + start;
+  std::size_t new_size = buffer_size(b) - start;
+  return const_buffer(new_data, new_size
+      );
+}
+
+
+/** @defgroup buffer asio::buffer
+ *
+ * @brief The asio::buffer function is used to create a buffer object to
+ * represent raw memory, an array of POD elements, a vector of POD elements,
+ * or a std::string.
+ *
+ * A buffer object represents a contiguous region of memory as a 2-tuple
+ * consisting of a pointer and size in bytes. A tuple of the form <tt>{void*,
+ * size_t}</tt> specifies a mutable (modifiable) region of memory. Similarly, a
+ * tuple of the form <tt>{const void*, size_t}</tt> specifies a const
+ * (non-modifiable) region of memory. These two forms correspond to the classes
+ * mutable_buffer and const_buffer, respectively. To mirror C++'s conversion
+ * rules, a mutable_buffer is implicitly convertible to a const_buffer, and the
+ * opposite conversion is not permitted.
+ *
+ * The simplest use case involves reading or writing a single buffer of a
+ * specified size:
+ *
+ * @code sock.send(asio::buffer(data, size)); @endcode
+ *
+ * In the above example, the return value of asio::buffer meets the
+ * requirements of the ConstBufferSequence concept so that it may be directly
+ * passed to the socket's write function. A buffer created for modifiable
+ * memory also meets the requirements of the MutableBufferSequence concept.
+ *
+ * An individual buffer may be created from a builtin array, std::vector,
+ * std::array or boost::array of POD elements. This helps prevent buffer
+ * overruns by automatically determining the size of the buffer:
+ *
+ * @code char d1[128];
+ * size_t bytes_transferred = sock.receive(asio::buffer(d1));
+ *
+ * std::vector<char> d2(128);
+ * bytes_transferred = sock.receive(asio::buffer(d2));
+ *
+ * std::array<char, 128> d3;
+ * bytes_transferred = sock.receive(asio::buffer(d3));
+ *
+ * boost::array<char, 128> d4;
+ * bytes_transferred = sock.receive(asio::buffer(d4)); @endcode
+ *
+ * In all three cases above, the buffers created are exactly 128 bytes long.
+ * Note that a vector is @e never automatically resized when creating or using
+ * a buffer. The buffer size is determined using the vector's <tt>size()</tt>
+ * member function, and not its capacity.
+ *
+ * @par Accessing Buffer Contents
+ *
+ * The contents of a buffer may be accessed using the @ref buffer_size and
+ * @ref buffer_cast functions:
+ *
+ * @code asio::mutable_buffer b1 = ...;
+ * std::size_t s1 = asio::buffer_size(b1);
+ * unsigned char* p1 = asio::buffer_cast<unsigned char*>(b1);
+ *
+ * asio::const_buffer b2 = ...;
+ * std::size_t s2 = asio::buffer_size(b2);
+ * const void* p2 = asio::buffer_cast<const void*>(b2); @endcode
+ *
+ * The asio::buffer_cast function permits violations of type safety, so
+ * uses of it in application code should be carefully considered.
+ *
+ * For convenience, the @ref buffer_size function also works on buffer
+ * sequences (that is, types meeting the ConstBufferSequence or
+ * MutableBufferSequence type requirements). In this case, the function returns
+ * the total size of all buffers in the sequence.
+ *
+ * @par Buffer Copying
+ *
+ * The @ref buffer_copy function may be used to copy raw bytes between
+ * individual buffers and buffer sequences.
+ *
+ * In particular, when used with the @ref buffer_size, the @ref buffer_copy
+ * function can be used to linearise a sequence of buffers. For example:
+ *
+ * @code vector<const_buffer> buffers = ...;
+ *
+ * vector<unsigned char> data(asio::buffer_size(buffers));
+ * asio::buffer_copy(asio::buffer(data), buffers); @endcode
+ *
+ * Note that @ref buffer_copy is implemented in terms of @c memcpy, and
+ * consequently it cannot be used to copy between overlapping memory regions.
+ *
+ * @par Buffer Invalidation
+ *
+ * A buffer object does not have any ownership of the memory it refers to. It
+ * is the responsibility of the application to ensure the memory region remains
+ * valid until it is no longer required for an I/O operation. When the memory
+ * is no longer available, the buffer is said to have been invalidated.
+ *
+ * For the asio::buffer overloads that accept an argument of type
+ * std::vector, the buffer objects returned are invalidated by any vector
+ * operation that also invalidates all references, pointers and iterators
+ * referring to the elements in the sequence (C++ Std, 23.2.4)
+ *
+ * For the asio::buffer overloads that accept an argument of type
+ * std::basic_string, the buffer objects returned are invalidated according to
+ * the rules defined for invalidation of references, pointers and iterators
+ * referring to elements of the sequence (C++ Std, 21.3).
+ *
+ * @par Buffer Arithmetic
+ *
+ * Buffer objects may be manipulated using simple arithmetic in a safe way
+ * which helps prevent buffer overruns. Consider an array initialised as
+ * follows:
+ *
+ * @code boost::array<char, 6> a = { 'a', 'b', 'c', 'd', 'e' }; @endcode
+ *
+ * A buffer object @c b1 created using:
+ *
+ * @code b1 = asio::buffer(a); @endcode
+ *
+ * represents the entire array, <tt>{ 'a', 'b', 'c', 'd', 'e' }</tt>. An
+ * optional second argument to the asio::buffer function may be used to
+ * limit the size, in bytes, of the buffer:
+ *
+ * @code b2 = asio::buffer(a, 3); @endcode
+ *
+ * such that @c b2 represents the data <tt>{ 'a', 'b', 'c' }</tt>. Even if the
+ * size argument exceeds the actual size of the array, the size of the buffer
+ * object created will be limited to the array size.
+ *
+ * An offset may be applied to an existing buffer to create a new one:
+ *
+ * @code b3 = b1 + 2; @endcode
+ *
+ * where @c b3 will set to represent <tt>{ 'c', 'd', 'e' }</tt>. If the offset
+ * exceeds the size of the existing buffer, the newly created buffer will be
+ * empty.
+ *
+ * Both an offset and size may be specified to create a buffer that corresponds
+ * to a specific range of bytes within an existing buffer:
+ *
+ * @code b4 = asio::buffer(b1 + 1, 3); @endcode
+ *
+ * so that @c b4 will refer to the bytes <tt>{ 'b', 'c', 'd' }</tt>.
+ *
+ * @par Buffers and Scatter-Gather I/O
+ *
+ * To read or write using multiple buffers (i.e. scatter-gather I/O), multiple
+ * buffer objects may be assigned into a container that supports the
+ * MutableBufferSequence (for read) or ConstBufferSequence (for write) concepts:
+ *
+ * @code
+ * char d1[128];
+ * std::vector<char> d2(128);
+ * boost::array<char, 128> d3;
+ *
+ * boost::array<mutable_buffer, 3> bufs1 = {
+ *   asio::buffer(d1),
+ *   asio::buffer(d2),
+ *   asio::buffer(d3) };
+ * bytes_transferred = sock.receive(bufs1);
+ *
+ * std::vector<const_buffer> bufs2;
+ * bufs2.push_back(asio::buffer(d1));
+ * bufs2.push_back(asio::buffer(d2));
+ * bufs2.push_back(asio::buffer(d3));
+ * bytes_transferred = sock.send(bufs2); @endcode
+ */
+/*@{*/
+
+/// Create a new modifiable buffer from an existing buffer.
+/**
+ * @returns <tt>mutable_buffers_1(b)</tt>.
+ */
+inline mutable_buffers_1 buffer(const mutable_buffer& b)
+{
+  return mutable_buffers_1(b);
+}
+
+/// Create a new modifiable buffer from an existing buffer.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     buffer_cast<void*>(b),
+ *     min(buffer_size(b), max_size_in_bytes)); @endcode
+ */
+inline mutable_buffers_1 buffer(const mutable_buffer& b,
+    std::size_t max_size_in_bytes)
+{
+  return mutable_buffers_1(
+      mutable_buffer(buffer_cast<void*>(b),
+        buffer_size(b) < max_size_in_bytes
+        ? buffer_size(b) : max_size_in_bytes
+        ));
+}
+
+/// Create a new non-modifiable buffer from an existing buffer.
+/**
+ * @returns <tt>const_buffers_1(b)</tt>.
+ */
+inline const_buffers_1 buffer(const const_buffer& b)
+{
+  return const_buffers_1(b);
+}
+
+/// Create a new non-modifiable buffer from an existing buffer.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     buffer_cast<const void*>(b),
+ *     min(buffer_size(b), max_size_in_bytes)); @endcode
+ */
+inline const_buffers_1 buffer(const const_buffer& b,
+    std::size_t max_size_in_bytes)
+{
+  return const_buffers_1(
+      const_buffer(buffer_cast<const void*>(b),
+        buffer_size(b) < max_size_in_bytes
+        ? buffer_size(b) : max_size_in_bytes
+        ));
+}
+
+/// Create a new modifiable buffer that represents the given memory range.
+/**
+ * @returns <tt>mutable_buffers_1(data, size_in_bytes)</tt>.
+ */
+inline mutable_buffers_1 buffer(void* data, std::size_t size_in_bytes)
+{
+  return mutable_buffers_1(mutable_buffer(data, size_in_bytes));
+}
+
+/// Create a new non-modifiable buffer that represents the given memory range.
+/**
+ * @returns <tt>const_buffers_1(data, size_in_bytes)</tt>.
+ */
+inline const_buffers_1 buffer(const void* data,
+    std::size_t size_in_bytes)
+{
+  return const_buffers_1(const_buffer(data, size_in_bytes));
+}
+
+/// Create a new modifiable buffer that represents the given POD array.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     static_cast<void*>(data),
+ *     N * sizeof(PodType)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline mutable_buffers_1 buffer(PodType (&data)[N])
+{
+  return mutable_buffers_1(mutable_buffer(data, N * sizeof(PodType)));
+}
+ 
+/// Create a new modifiable buffer that represents the given POD array.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     static_cast<void*>(data),
+ *     min(N * sizeof(PodType), max_size_in_bytes)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline mutable_buffers_1 buffer(PodType (&data)[N],
+    std::size_t max_size_in_bytes)
+{
+  return mutable_buffers_1(
+      mutable_buffer(data,
+        N * sizeof(PodType) < max_size_in_bytes
+        ? N * sizeof(PodType) : max_size_in_bytes));
+}
+ 
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     static_cast<const void*>(data),
+ *     N * sizeof(PodType)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(const PodType (&data)[N])
+{
+  return const_buffers_1(const_buffer(data, N * sizeof(PodType)));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     static_cast<const void*>(data),
+ *     min(N * sizeof(PodType), max_size_in_bytes)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(const PodType (&data)[N],
+    std::size_t max_size_in_bytes)
+{
+  return const_buffers_1(
+      const_buffer(data,
+        N * sizeof(PodType) < max_size_in_bytes
+        ? N * sizeof(PodType) : max_size_in_bytes));
+}
+
+#if defined(ASIO_ENABLE_ARRAY_BUFFER_WORKAROUND)
+
+// Borland C++ and Sun Studio think the overloads:
+//
+//   unspecified buffer(boost::array<PodType, N>& array ...);
+//
+// and
+//
+//   unspecified buffer(boost::array<const PodType, N>& array ...);
+//
+// are ambiguous. This will be worked around by using a buffer_types traits
+// class that contains typedefs for the appropriate buffer and container
+// classes, based on whether PodType is const or non-const.
+
+namespace detail {
+
+template <bool IsConst>
+struct buffer_types_base;
+
+template <>
+struct buffer_types_base<false>
+{
+  typedef mutable_buffer buffer_type;
+  typedef mutable_buffers_1 container_type;
+};
+
+template <>
+struct buffer_types_base<true>
+{
+  typedef const_buffer buffer_type;
+  typedef const_buffers_1 container_type;
+};
+
+template <typename PodType>
+struct buffer_types
+  : public buffer_types_base<is_const<PodType>::value>
+{
+};
+
+} // namespace detail
+
+template <typename PodType, std::size_t N>
+inline typename detail::buffer_types<PodType>::container_type
+buffer(boost::array<PodType, N>& data)
+{
+  typedef typename asio::detail::buffer_types<PodType>::buffer_type
+    buffer_type;
+  typedef typename asio::detail::buffer_types<PodType>::container_type
+    container_type;
+  return container_type(
+      buffer_type(data.c_array(), data.size() * sizeof(PodType)));
+}
+
+template <typename PodType, std::size_t N>
+inline typename detail::buffer_types<PodType>::container_type
+buffer(boost::array<PodType, N>& data, std::size_t max_size_in_bytes)
+{
+  typedef typename asio::detail::buffer_types<PodType>::buffer_type
+    buffer_type;
+  typedef typename asio::detail::buffer_types<PodType>::container_type
+    container_type;
+  return container_type(
+      buffer_type(data.c_array(),
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes));
+}
+
+#else // defined(ASIO_ENABLE_ARRAY_BUFFER_WORKAROUND)
+
+/// Create a new modifiable buffer that represents the given POD array.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     data.data(),
+ *     data.size() * sizeof(PodType)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline mutable_buffers_1 buffer(boost::array<PodType, N>& data)
+{
+  return mutable_buffers_1(
+      mutable_buffer(data.c_array(), data.size() * sizeof(PodType)));
+}
+
+/// Create a new modifiable buffer that represents the given POD array.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     data.data(),
+ *     min(data.size() * sizeof(PodType), max_size_in_bytes)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline mutable_buffers_1 buffer(boost::array<PodType, N>& data,
+    std::size_t max_size_in_bytes)
+{
+  return mutable_buffers_1(
+      mutable_buffer(data.c_array(),
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     data.size() * sizeof(PodType)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(boost::array<const PodType, N>& data)
+{
+  return const_buffers_1(
+      const_buffer(data.data(), data.size() * sizeof(PodType)));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     min(data.size() * sizeof(PodType), max_size_in_bytes)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(boost::array<const PodType, N>& data,
+    std::size_t max_size_in_bytes)
+{
+  return const_buffers_1(
+      const_buffer(data.data(),
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes));
+}
+
+#endif // defined(ASIO_ENABLE_ARRAY_BUFFER_WORKAROUND)
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     data.size() * sizeof(PodType)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(const boost::array<PodType, N>& data)
+{
+  return const_buffers_1(
+      const_buffer(data.data(), data.size() * sizeof(PodType)));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     min(data.size() * sizeof(PodType), max_size_in_bytes)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(const boost::array<PodType, N>& data,
+    std::size_t max_size_in_bytes)
+{
+  return const_buffers_1(
+      const_buffer(data.data(),
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes));
+}
+
+
+/// Create a new modifiable buffer that represents the given POD array.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     data.data(),
+ *     data.size() * sizeof(PodType)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline mutable_buffers_1 buffer(std::array<PodType, N>& data)
+{
+  return mutable_buffers_1(
+      mutable_buffer(data.data(), data.size() * sizeof(PodType)));
+}
+
+/// Create a new modifiable buffer that represents the given POD array.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     data.data(),
+ *     min(data.size() * sizeof(PodType), max_size_in_bytes)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline mutable_buffers_1 buffer(std::array<PodType, N>& data,
+    std::size_t max_size_in_bytes)
+{
+  return mutable_buffers_1(
+      mutable_buffer(data.data(),
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     data.size() * sizeof(PodType)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(std::array<const PodType, N>& data)
+{
+  return const_buffers_1(
+      const_buffer(data.data(), data.size() * sizeof(PodType)));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     min(data.size() * sizeof(PodType), max_size_in_bytes)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(std::array<const PodType, N>& data,
+    std::size_t max_size_in_bytes)
+{
+  return const_buffers_1(
+      const_buffer(data.data(),
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     data.size() * sizeof(PodType)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(const std::array<PodType, N>& data)
+{
+  return const_buffers_1(
+      const_buffer(data.data(), data.size() * sizeof(PodType)));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD array.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     min(data.size() * sizeof(PodType), max_size_in_bytes)); @endcode
+ */
+template <typename PodType, std::size_t N>
+inline const_buffers_1 buffer(const std::array<PodType, N>& data,
+    std::size_t max_size_in_bytes)
+{
+  return const_buffers_1(
+      const_buffer(data.data(),
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes));
+}
+
+
+/// Create a new modifiable buffer that represents the given POD vector.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     data.size() ? &data[0] : 0,
+ *     data.size() * sizeof(PodType)); @endcode
+ *
+ * @note The buffer is invalidated by any vector operation that would also
+ * invalidate iterators.
+ */
+template <typename PodType, typename Allocator>
+inline mutable_buffers_1 buffer(std::vector<PodType, Allocator>& data)
+{
+  return mutable_buffers_1(
+      mutable_buffer(data.size() ? &data[0] : 0, data.size() * sizeof(PodType)
+        ));
+}
+
+/// Create a new modifiable buffer that represents the given POD vector.
+/**
+ * @returns A mutable_buffers_1 value equivalent to:
+ * @code mutable_buffers_1(
+ *     data.size() ? &data[0] : 0,
+ *     min(data.size() * sizeof(PodType), max_size_in_bytes)); @endcode
+ *
+ * @note The buffer is invalidated by any vector operation that would also
+ * invalidate iterators.
+ */
+template <typename PodType, typename Allocator>
+inline mutable_buffers_1 buffer(std::vector<PodType, Allocator>& data,
+    std::size_t max_size_in_bytes)
+{
+  return mutable_buffers_1(
+      mutable_buffer(data.size() ? &data[0] : 0,
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes
+        ));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD vector.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.size() ? &data[0] : 0,
+ *     data.size() * sizeof(PodType)); @endcode
+ *
+ * @note The buffer is invalidated by any vector operation that would also
+ * invalidate iterators.
+ */
+template <typename PodType, typename Allocator>
+inline const_buffers_1 buffer(
+    const std::vector<PodType, Allocator>& data)
+{
+  return const_buffers_1(
+      const_buffer(data.size() ? &data[0] : 0, data.size() * sizeof(PodType)
+        ));
+}
+
+/// Create a new non-modifiable buffer that represents the given POD vector.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.size() ? &data[0] : 0,
+ *     min(data.size() * sizeof(PodType), max_size_in_bytes)); @endcode
+ *
+ * @note The buffer is invalidated by any vector operation that would also
+ * invalidate iterators.
+ */
+template <typename PodType, typename Allocator>
+inline const_buffers_1 buffer(
+    const std::vector<PodType, Allocator>& data, std::size_t max_size_in_bytes)
+{
+  return const_buffers_1(
+      const_buffer(data.size() ? &data[0] : 0,
+        data.size() * sizeof(PodType) < max_size_in_bytes
+        ? data.size() * sizeof(PodType) : max_size_in_bytes
+        ));
+}
+
+/// Create a new non-modifiable buffer that represents the given string.
+/**
+ * @returns <tt>const_buffers_1(data.data(), data.size() * sizeof(Elem))</tt>.
+ *
+ * @note The buffer is invalidated by any non-const operation called on the
+ * given string object.
+ */
+template <typename Elem, typename Traits, typename Allocator>
+inline const_buffers_1 buffer(
+    const std::basic_string<Elem, Traits, Allocator>& data)
+{
+  return const_buffers_1(const_buffer(data.data(), data.size() * sizeof(Elem)
+        ));
+}
+
+/// Create a new non-modifiable buffer that represents the given string.
+/**
+ * @returns A const_buffers_1 value equivalent to:
+ * @code const_buffers_1(
+ *     data.data(),
+ *     min(data.size() * sizeof(Elem), max_size_in_bytes)); @endcode
+ *
+ * @note The buffer is invalidated by any non-const operation called on the
+ * given string object.
+ */
+template <typename Elem, typename Traits, typename Allocator>
+inline const_buffers_1 buffer(
+    const std::basic_string<Elem, Traits, Allocator>& data,
+    std::size_t max_size_in_bytes)
+{
+  return const_buffers_1(
+      const_buffer(data.data(),
+        data.size() * sizeof(Elem) < max_size_in_bytes
+        ? data.size() * sizeof(Elem) : max_size_in_bytes
+        ));
+}
+
+/*@}*/
+
+/** @defgroup buffer_copy asio::buffer_copy
+ *
+ * @brief The asio::buffer_copy function is used to copy bytes from a
+ * source buffer (or buffer sequence) to a target buffer (or buffer sequence).
+ *
+ * The @c buffer_copy function is available in two forms:
+ *
+ * @li A 2-argument form: @c buffer_copy(target, source)
+ *
+ * @li A 3-argument form: @c buffer_copy(target, source, max_bytes_to_copy)
+
+ * Both forms return the number of bytes actually copied. The number of bytes
+ * copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c If specified, @c max_bytes_to_copy.
+ *
+ * This prevents buffer overflow, regardless of the buffer sizes used in the
+ * copy operation.
+ *
+ * Note that @ref buffer_copy is implemented in terms of @c memcpy, and
+ * consequently it cannot be used to copy between overlapping memory regions.
+ */
+/*@{*/
+
+/// Copies bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const const_buffer& source)
+{
+  using namespace std; // For memcpy.
+  std::size_t target_size = buffer_size(target);
+  std::size_t source_size = buffer_size(source);
+  std::size_t n = target_size < source_size ? target_size : source_size;
+  memcpy(buffer_cast<void*>(target), buffer_cast<const void*>(source), n);
+  return n;
+}
+
+/// Copies bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const const_buffers_1& source)
+{
+  return buffer_copy(target, static_cast<const const_buffer&>(source));
+}
+
+/// Copies bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const mutable_buffer& source)
+{
+  return buffer_copy(target, const_buffer(source));
+}
+
+/// Copies bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const mutable_buffers_1& source)
+{
+  return buffer_copy(target, const_buffer(source));
+}
+
+/// Copies bytes from a source buffer sequence to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer sequence representing the memory
+ * regions from which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename ConstBufferSequence>
+std::size_t buffer_copy(const mutable_buffer& target,
+    const ConstBufferSequence& source)
+{
+  std::size_t total_bytes_copied = 0;
+
+  typename ConstBufferSequence::const_iterator source_iter = source.begin();
+  typename ConstBufferSequence::const_iterator source_end = source.end();
+
+  for (mutable_buffer target_buffer(target);
+      buffer_size(target_buffer) && source_iter != source_end; ++source_iter)
+  {
+    const_buffer source_buffer(*source_iter);
+    std::size_t bytes_copied = buffer_copy(target_buffer, source_buffer);
+    total_bytes_copied += bytes_copied;
+    target_buffer = target_buffer + bytes_copied;
+  }
+
+  return total_bytes_copied;
+}
+
+/// Copies bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const const_buffer& source)
+{
+  return buffer_copy(static_cast<const mutable_buffer&>(target), source);
+}
+
+/// Copies bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const const_buffers_1& source)
+{
+  return buffer_copy(static_cast<const mutable_buffer&>(target),
+      static_cast<const const_buffer&>(source));
+}
+
+/// Copies bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const mutable_buffer& source)
+{
+  return buffer_copy(static_cast<const mutable_buffer&>(target),
+      const_buffer(source));
+}
+
+/// Copies bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const mutable_buffers_1& source)
+{
+  return buffer_copy(static_cast<const mutable_buffer&>(target),
+      const_buffer(source));
+}
+
+/// Copies bytes from a source buffer sequence to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer sequence representing the memory
+ * regions from which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename ConstBufferSequence>
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const ConstBufferSequence& source)
+{
+  return buffer_copy(static_cast<const mutable_buffer&>(target), source);
+}
+
+/// Copies bytes from a source buffer to a target buffer sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence>
+std::size_t buffer_copy(const MutableBufferSequence& target,
+    const const_buffer& source)
+{
+  std::size_t total_bytes_copied = 0;
+
+  typename MutableBufferSequence::const_iterator target_iter = target.begin();
+  typename MutableBufferSequence::const_iterator target_end = target.end();
+
+  for (const_buffer source_buffer(source);
+      buffer_size(source_buffer) && target_iter != target_end; ++target_iter)
+  {
+    mutable_buffer target_buffer(*target_iter);
+    std::size_t bytes_copied = buffer_copy(target_buffer, source_buffer);
+    total_bytes_copied += bytes_copied;
+    source_buffer = source_buffer + bytes_copied;
+  }
+
+  return total_bytes_copied;
+}
+
+/// Copies bytes from a source buffer to a target buffer sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence>
+inline std::size_t buffer_copy(const MutableBufferSequence& target,
+    const const_buffers_1& source)
+{
+  return buffer_copy(target, static_cast<const const_buffer&>(source));
+}
+
+/// Copies bytes from a source buffer to a target buffer sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence>
+inline std::size_t buffer_copy(const MutableBufferSequence& target,
+    const mutable_buffer& source)
+{
+  return buffer_copy(target, const_buffer(source));
+}
+
+/// Copies bytes from a source buffer to a target buffer sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence>
+inline std::size_t buffer_copy(const MutableBufferSequence& target,
+    const mutable_buffers_1& source)
+{
+  return buffer_copy(target, const_buffer(source));
+}
+
+/// Copies bytes from a source buffer sequence to a target buffer sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer sequence representing the memory
+ * regions from which the bytes will be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence, typename ConstBufferSequence>
+std::size_t buffer_copy(const MutableBufferSequence& target,
+    const ConstBufferSequence& source)
+{
+  std::size_t total_bytes_copied = 0;
+
+  typename MutableBufferSequence::const_iterator target_iter = target.begin();
+  typename MutableBufferSequence::const_iterator target_end = target.end();
+  std::size_t target_buffer_offset = 0;
+
+  typename ConstBufferSequence::const_iterator source_iter = source.begin();
+  typename ConstBufferSequence::const_iterator source_end = source.end();
+  std::size_t source_buffer_offset = 0;
+
+  while (target_iter != target_end && source_iter != source_end)
+  {
+    mutable_buffer target_buffer =
+      mutable_buffer(*target_iter) + target_buffer_offset;
+
+    const_buffer source_buffer =
+      const_buffer(*source_iter) + source_buffer_offset;
+
+    std::size_t bytes_copied = buffer_copy(target_buffer, source_buffer);
+    total_bytes_copied += bytes_copied;
+
+    if (bytes_copied == buffer_size(target_buffer))
+    {
+      ++target_iter;
+      target_buffer_offset = 0;
+    }
+    else
+      target_buffer_offset += bytes_copied;
+
+    if (bytes_copied == buffer_size(source_buffer))
+    {
+      ++source_iter;
+      source_buffer_offset = 0;
+    }
+    else
+      source_buffer_offset += bytes_copied;
+  }
+
+  return total_bytes_copied;
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const const_buffer& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const const_buffers_1& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const mutable_buffer& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const mutable_buffers_1& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer sequence to a target
+/// buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer sequence representing the memory
+ * regions from which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename ConstBufferSequence>
+inline std::size_t buffer_copy(const mutable_buffer& target,
+    const ConstBufferSequence& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const const_buffer& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const const_buffers_1& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const mutable_buffer& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const mutable_buffers_1& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer sequence to a target
+/// buffer.
+/**
+ * @param target A modifiable buffer representing the memory region to which
+ * the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer sequence representing the memory
+ * regions from which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename ConstBufferSequence>
+inline std::size_t buffer_copy(const mutable_buffers_1& target,
+    const ConstBufferSequence& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(buffer(target, max_bytes_to_copy), source);
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer
+/// sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence>
+inline std::size_t buffer_copy(const MutableBufferSequence& target,
+    const const_buffer& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(target, buffer(source, max_bytes_to_copy));
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer
+/// sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer representing the memory region from
+ * which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence>
+inline std::size_t buffer_copy(const MutableBufferSequence& target,
+    const const_buffers_1& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(target, buffer(source, max_bytes_to_copy));
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer
+/// sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence>
+inline std::size_t buffer_copy(const MutableBufferSequence& target,
+    const mutable_buffer& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(target, buffer(source, max_bytes_to_copy));
+}
+
+/// Copies a limited number of bytes from a source buffer to a target buffer
+/// sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A modifiable buffer representing the memory region from which
+ * the bytes will be copied. The contents of the source buffer will not be
+ * modified.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence>
+inline std::size_t buffer_copy(const MutableBufferSequence& target,
+    const mutable_buffers_1& source, std::size_t max_bytes_to_copy)
+{
+  return buffer_copy(target, buffer(source, max_bytes_to_copy));
+}
+
+/// Copies a limited number of bytes from a source buffer sequence to a target
+/// buffer sequence.
+/**
+ * @param target A modifiable buffer sequence representing the memory regions to
+ * which the bytes will be copied.
+ *
+ * @param source A non-modifiable buffer sequence representing the memory
+ * regions from which the bytes will be copied.
+ *
+ * @param max_bytes_to_copy The maximum number of bytes to be copied.
+ *
+ * @returns The number of bytes copied.
+ *
+ * @note The number of bytes copied is the lesser of:
+ *
+ * @li @c buffer_size(target)
+ *
+ * @li @c buffer_size(source)
+ *
+ * @li @c max_bytes_to_copy
+ *
+ * This function is implemented in terms of @c memcpy, and consequently it
+ * cannot be used to copy between overlapping memory regions.
+ */
+template <typename MutableBufferSequence, typename ConstBufferSequence>
+std::size_t buffer_copy(const MutableBufferSequence& target,
+    const ConstBufferSequence& source, std::size_t max_bytes_to_copy)
+{
+  std::size_t total_bytes_copied = 0;
+
+  typename MutableBufferSequence::const_iterator target_iter = target.begin();
+  typename MutableBufferSequence::const_iterator target_end = target.end();
+  std::size_t target_buffer_offset = 0;
+
+  typename ConstBufferSequence::const_iterator source_iter = source.begin();
+  typename ConstBufferSequence::const_iterator source_end = source.end();
+  std::size_t source_buffer_offset = 0;
+
+  while (total_bytes_copied != max_bytes_to_copy
+      && target_iter != target_end && source_iter != source_end)
+  {
+    mutable_buffer target_buffer =
+      mutable_buffer(*target_iter) + target_buffer_offset;
+
+    const_buffer source_buffer =
+      const_buffer(*source_iter) + source_buffer_offset;
+
+    std::size_t bytes_copied = buffer_copy(target_buffer,
+        source_buffer, max_bytes_to_copy - total_bytes_copied);
+    total_bytes_copied += bytes_copied;
+
+    if (bytes_copied == buffer_size(target_buffer))
+    {
+      ++target_iter;
+      target_buffer_offset = 0;
+    }
+    else
+      target_buffer_offset += bytes_copied;
+
+    if (bytes_copied == buffer_size(source_buffer))
+    {
+      ++source_iter;
+      source_buffer_offset = 0;
+    }
+    else
+      source_buffer_offset += bytes_copied;
+  }
+
+  return total_bytes_copied;
+}
+
+/*@}*/
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_BUFFER_HPP
diff --git a/asio-1.10.6/include/asio/completion_condition.hpp b/asio-1.10.6/include/asio/completion_condition.hpp
new file mode 100644
index 0000000..127506b
--- /dev/null
+++ b/asio-1.10.6/include/asio/completion_condition.hpp
@@ -0,0 +1,203 @@
+//
+// completion_condition.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_COMPLETION_CONDITION_HPP
+#define ASIO_COMPLETION_CONDITION_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+namespace detail {
+
+// The default maximum number of bytes to transfer in a single operation.
+enum default_max_transfer_size_t { default_max_transfer_size = 65536 };
+
+// Adapt result of old-style completion conditions (which had a bool result
+// where true indicated that the operation was complete).
+inline std::size_t adapt_completion_condition_result(bool result)
+{
+  return result ? 0 : default_max_transfer_size;
+}
+
+// Adapt result of current completion conditions (which have a size_t result
+// where 0 means the operation is complete, and otherwise the result is the
+// maximum number of bytes to transfer on the next underlying operation).
+inline std::size_t adapt_completion_condition_result(std::size_t result)
+{
+  return result;
+}
+
+class transfer_all_t
+{
+public:
+  typedef std::size_t result_type;
+
+  template <typename Error>
+  std::size_t operator()(const Error& err, std::size_t)
+  {
+    return !!err ? 0 : default_max_transfer_size;
+  }
+};
+
+class transfer_at_least_t
+{
+public:
+  typedef std::size_t result_type;
+
+  explicit transfer_at_least_t(std::size_t minimum)
+    : minimum_(minimum)
+  {
+  }
+
+  template <typename Error>
+  std::size_t operator()(const Error& err, std::size_t bytes_transferred)
+  {
+    return (!!err || bytes_transferred >= minimum_)
+      ? 0 : default_max_transfer_size;
+  }
+
+private:
+  std::size_t minimum_;
+};
+
+class transfer_exactly_t
+{
+public:
+  typedef std::size_t result_type;
+
+  explicit transfer_exactly_t(std::size_t size)
+    : size_(size)
+  {
+  }
+
+  template <typename Error>
+  std::size_t operator()(const Error& err, std::size_t bytes_transferred)
+  {
+    return (!!err || bytes_transferred >= size_) ? 0 :
+      (size_ - bytes_transferred < default_max_transfer_size
+        ? size_ - bytes_transferred : std::size_t(default_max_transfer_size));
+  }
+
+private:
+  std::size_t size_;
+};
+
+} // namespace detail
+
+/**
+ * @defgroup completion_condition Completion Condition Function Objects
+ *
+ * Function objects used for determining when a read or write operation should
+ * complete.
+ */
+/*@{*/
+
+/// Return a completion condition function object that indicates that a read or
+/// write operation should continue until all of the data has been transferred,
+/// or until an error occurs.
+/**
+ * This function is used to create an object, of unspecified type, that meets
+ * CompletionCondition requirements.
+ *
+ * @par Example
+ * Reading until a buffer is full:
+ * @code
+ * boost::array<char, 128> buf;
+ * asio::error_code ec;
+ * std::size_t n = asio::read(
+ *     sock, asio::buffer(buf),
+ *     asio::transfer_all(), ec);
+ * if (ec)
+ * {
+ *   // An error occurred.
+ * }
+ * else
+ * {
+ *   // n == 128
+ * }
+ * @endcode
+ */
+inline detail::transfer_all_t transfer_all()
+{
+  return detail::transfer_all_t();
+}
+
+/// Return a completion condition function object that indicates that a read or
+/// write operation should continue until a minimum number of bytes has been
+/// transferred, or until an error occurs.
+/**
+ * This function is used to create an object, of unspecified type, that meets
+ * CompletionCondition requirements.
+ *
+ * @par Example
+ * Reading until a buffer is full or contains at least 64 bytes:
+ * @code
+ * boost::array<char, 128> buf;
+ * asio::error_code ec;
+ * std::size_t n = asio::read(
+ *     sock, asio::buffer(buf),
+ *     asio::transfer_at_least(64), ec);
+ * if (ec)
+ * {
+ *   // An error occurred.
+ * }
+ * else
+ * {
+ *   // n >= 64 && n <= 128
+ * }
+ * @endcode
+ */
+inline detail::transfer_at_least_t transfer_at_least(std::size_t minimum)
+{
+  return detail::transfer_at_least_t(minimum);
+}
+
+/// Return a completion condition function object that indicates that a read or
+/// write operation should continue until an exact number of bytes has been
+/// transferred, or until an error occurs.
+/**
+ * This function is used to create an object, of unspecified type, that meets
+ * CompletionCondition requirements.
+ *
+ * @par Example
+ * Reading until a buffer is full or contains exactly 64 bytes:
+ * @code
+ * boost::array<char, 128> buf;
+ * asio::error_code ec;
+ * std::size_t n = asio::read(
+ *     sock, asio::buffer(buf),
+ *     asio::transfer_exactly(64), ec);
+ * if (ec)
+ * {
+ *   // An error occurred.
+ * }
+ * else
+ * {
+ *   // n == 64
+ * }
+ * @endcode
+ */
+inline detail::transfer_exactly_t transfer_exactly(std::size_t size)
+{
+  return detail::transfer_exactly_t(size);
+}
+
+/*@}*/
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_COMPLETION_CONDITION_HPP
diff --git a/asio-1.10.6/include/asio/connect.hpp b/asio-1.10.6/include/asio/connect.hpp
new file mode 100644
index 0000000..d0f245c
--- /dev/null
+++ b/asio-1.10.6/include/asio/connect.hpp
@@ -0,0 +1,820 @@
+//
+// connect.hpp
+// ~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_CONNECT_HPP
+#define ASIO_CONNECT_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/async_result.hpp"
+#include "asio/basic_socket.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/**
+ * @defgroup connect asio::connect
+ *
+ * @brief Establishes a socket connection by trying each endpoint in a sequence.
+ */
+/*@{*/
+
+/// Establishes a socket connection by trying each endpoint in a sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c connect member
+ * function, once for each endpoint in the sequence, until a connection is
+ * successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @returns On success, an iterator denoting the successfully connected
+ * endpoint. Otherwise, the end iterator.
+ *
+ * @throws asio::system_error Thrown on failure. If the sequence is
+ * empty, the associated @c error_code is asio::error::not_found.
+ * Otherwise, contains the error from the last connection attempt.
+ *
+ * @note This overload assumes that a default constructed object of type @c
+ * Iterator represents the end of the sequence. This is a valid assumption for
+ * iterator types such as @c asio::ip::tcp::resolver::iterator.
+ *
+ * @par Example
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::socket s(io_service);
+ * asio::connect(s, r.resolve(q)); @endcode
+ */
+template <typename Protocol, typename SocketService, typename Iterator>
+Iterator connect(basic_socket<Protocol, SocketService>& s, Iterator begin);
+
+/// Establishes a socket connection by trying each endpoint in a sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c connect member
+ * function, once for each endpoint in the sequence, until a connection is
+ * successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param ec Set to indicate what error occurred, if any. If the sequence is
+ * empty, set to asio::error::not_found. Otherwise, contains the error
+ * from the last connection attempt.
+ *
+ * @returns On success, an iterator denoting the successfully connected
+ * endpoint. Otherwise, the end iterator.
+ *
+ * @note This overload assumes that a default constructed object of type @c
+ * Iterator represents the end of the sequence. This is a valid assumption for
+ * iterator types such as @c asio::ip::tcp::resolver::iterator.
+ *
+ * @par Example
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::socket s(io_service);
+ * asio::error_code ec;
+ * asio::connect(s, r.resolve(q), ec);
+ * if (ec)
+ * {
+ *   // An error occurred.
+ * } @endcode
+ */
+template <typename Protocol, typename SocketService, typename Iterator>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, asio::error_code& ec);
+
+/// Establishes a socket connection by trying each endpoint in a sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c connect member
+ * function, once for each endpoint in the sequence, until a connection is
+ * successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param end An iterator pointing to the end of a sequence of endpoints.
+ *
+ * @returns On success, an iterator denoting the successfully connected
+ * endpoint. Otherwise, the end iterator.
+ *
+ * @throws asio::system_error Thrown on failure. If the sequence is
+ * empty, the associated @c error_code is asio::error::not_found.
+ * Otherwise, contains the error from the last connection attempt.
+ *
+ * @par Example
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::resolver::iterator i = r.resolve(q), end;
+ * tcp::socket s(io_service);
+ * asio::connect(s, i, end); @endcode
+ */
+template <typename Protocol, typename SocketService, typename Iterator>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end);
+
+/// Establishes a socket connection by trying each endpoint in a sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c connect member
+ * function, once for each endpoint in the sequence, until a connection is
+ * successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param end An iterator pointing to the end of a sequence of endpoints.
+ *
+ * @param ec Set to indicate what error occurred, if any. If the sequence is
+ * empty, set to asio::error::not_found. Otherwise, contains the error
+ * from the last connection attempt.
+ *
+ * @returns On success, an iterator denoting the successfully connected
+ * endpoint. Otherwise, the end iterator.
+ *
+ * @par Example
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::resolver::iterator i = r.resolve(q), end;
+ * tcp::socket s(io_service);
+ * asio::error_code ec;
+ * asio::connect(s, i, end, ec);
+ * if (ec)
+ * {
+ *   // An error occurred.
+ * } @endcode
+ */
+template <typename Protocol, typename SocketService, typename Iterator>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end, asio::error_code& ec);
+
+/// Establishes a socket connection by trying each endpoint in a sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c connect member
+ * function, once for each endpoint in the sequence, until a connection is
+ * successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param connect_condition A function object that is called prior to each
+ * connection attempt. The signature of the function object must be:
+ * @code Iterator connect_condition(
+ *     const asio::error_code& ec,
+ *     Iterator next); @endcode
+ * The @c ec parameter contains the result from the most recent connect
+ * operation. Before the first connection attempt, @c ec is always set to
+ * indicate success. The @c next parameter is an iterator pointing to the next
+ * endpoint to be tried. The function object should return the next iterator,
+ * but is permitted to return a different iterator so that endpoints may be
+ * skipped. The implementation guarantees that the function object will never
+ * be called with the end iterator.
+ *
+ * @returns On success, an iterator denoting the successfully connected
+ * endpoint. Otherwise, the end iterator.
+ *
+ * @throws asio::system_error Thrown on failure. If the sequence is
+ * empty, the associated @c error_code is asio::error::not_found.
+ * Otherwise, contains the error from the last connection attempt.
+ *
+ * @note This overload assumes that a default constructed object of type @c
+ * Iterator represents the end of the sequence. This is a valid assumption for
+ * iterator types such as @c asio::ip::tcp::resolver::iterator.
+ *
+ * @par Example
+ * The following connect condition function object can be used to output
+ * information about the individual connection attempts:
+ * @code struct my_connect_condition
+ * {
+ *   template <typename Iterator>
+ *   Iterator operator()(
+ *       const asio::error_code& ec,
+ *       Iterator next)
+ *   {
+ *     if (ec) std::cout << "Error: " << ec.message() << std::endl;
+ *     std::cout << "Trying: " << next->endpoint() << std::endl;
+ *     return next;
+ *   }
+ * }; @endcode
+ * It would be used with the asio::connect function as follows:
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::socket s(io_service);
+ * tcp::resolver::iterator i = asio::connect(
+ *     s, r.resolve(q), my_connect_condition());
+ * std::cout << "Connected to: " << i->endpoint() << std::endl; @endcode
+ */
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ConnectCondition>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, ConnectCondition connect_condition);
+
+/// Establishes a socket connection by trying each endpoint in a sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c connect member
+ * function, once for each endpoint in the sequence, until a connection is
+ * successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param connect_condition A function object that is called prior to each
+ * connection attempt. The signature of the function object must be:
+ * @code Iterator connect_condition(
+ *     const asio::error_code& ec,
+ *     Iterator next); @endcode
+ * The @c ec parameter contains the result from the most recent connect
+ * operation. Before the first connection attempt, @c ec is always set to
+ * indicate success. The @c next parameter is an iterator pointing to the next
+ * endpoint to be tried. The function object should return the next iterator,
+ * but is permitted to return a different iterator so that endpoints may be
+ * skipped. The implementation guarantees that the function object will never
+ * be called with the end iterator.
+ *
+ * @param ec Set to indicate what error occurred, if any. If the sequence is
+ * empty, set to asio::error::not_found. Otherwise, contains the error
+ * from the last connection attempt.
+ *
+ * @returns On success, an iterator denoting the successfully connected
+ * endpoint. Otherwise, the end iterator.
+ *
+ * @note This overload assumes that a default constructed object of type @c
+ * Iterator represents the end of the sequence. This is a valid assumption for
+ * iterator types such as @c asio::ip::tcp::resolver::iterator.
+ *
+ * @par Example
+ * The following connect condition function object can be used to output
+ * information about the individual connection attempts:
+ * @code struct my_connect_condition
+ * {
+ *   template <typename Iterator>
+ *   Iterator operator()(
+ *       const asio::error_code& ec,
+ *       Iterator next)
+ *   {
+ *     if (ec) std::cout << "Error: " << ec.message() << std::endl;
+ *     std::cout << "Trying: " << next->endpoint() << std::endl;
+ *     return next;
+ *   }
+ * }; @endcode
+ * It would be used with the asio::connect function as follows:
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::socket s(io_service);
+ * asio::error_code ec;
+ * tcp::resolver::iterator i = asio::connect(
+ *     s, r.resolve(q), my_connect_condition(), ec);
+ * if (ec)
+ * {
+ *   // An error occurred.
+ * }
+ * else
+ * {
+ *   std::cout << "Connected to: " << i->endpoint() << std::endl;
+ * } @endcode
+ */
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ConnectCondition>
+Iterator connect(basic_socket<Protocol, SocketService>& s, Iterator begin,
+    ConnectCondition connect_condition, asio::error_code& ec);
+
+/// Establishes a socket connection by trying each endpoint in a sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c connect member
+ * function, once for each endpoint in the sequence, until a connection is
+ * successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param end An iterator pointing to the end of a sequence of endpoints.
+ *
+ * @param connect_condition A function object that is called prior to each
+ * connection attempt. The signature of the function object must be:
+ * @code Iterator connect_condition(
+ *     const asio::error_code& ec,
+ *     Iterator next); @endcode
+ * The @c ec parameter contains the result from the most recent connect
+ * operation. Before the first connection attempt, @c ec is always set to
+ * indicate success. The @c next parameter is an iterator pointing to the next
+ * endpoint to be tried. The function object should return the next iterator,
+ * but is permitted to return a different iterator so that endpoints may be
+ * skipped. The implementation guarantees that the function object will never
+ * be called with the end iterator.
+ *
+ * @returns On success, an iterator denoting the successfully connected
+ * endpoint. Otherwise, the end iterator.
+ *
+ * @throws asio::system_error Thrown on failure. If the sequence is
+ * empty, the associated @c error_code is asio::error::not_found.
+ * Otherwise, contains the error from the last connection attempt.
+ *
+ * @par Example
+ * The following connect condition function object can be used to output
+ * information about the individual connection attempts:
+ * @code struct my_connect_condition
+ * {
+ *   template <typename Iterator>
+ *   Iterator operator()(
+ *       const asio::error_code& ec,
+ *       Iterator next)
+ *   {
+ *     if (ec) std::cout << "Error: " << ec.message() << std::endl;
+ *     std::cout << "Trying: " << next->endpoint() << std::endl;
+ *     return next;
+ *   }
+ * }; @endcode
+ * It would be used with the asio::connect function as follows:
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::resolver::iterator i = r.resolve(q), end;
+ * tcp::socket s(io_service);
+ * i = asio::connect(s, i, end, my_connect_condition());
+ * std::cout << "Connected to: " << i->endpoint() << std::endl; @endcode
+ */
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ConnectCondition>
+Iterator connect(basic_socket<Protocol, SocketService>& s, Iterator begin,
+    Iterator end, ConnectCondition connect_condition);
+
+/// Establishes a socket connection by trying each endpoint in a sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c connect member
+ * function, once for each endpoint in the sequence, until a connection is
+ * successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param end An iterator pointing to the end of a sequence of endpoints.
+ *
+ * @param connect_condition A function object that is called prior to each
+ * connection attempt. The signature of the function object must be:
+ * @code Iterator connect_condition(
+ *     const asio::error_code& ec,
+ *     Iterator next); @endcode
+ * The @c ec parameter contains the result from the most recent connect
+ * operation. Before the first connection attempt, @c ec is always set to
+ * indicate success. The @c next parameter is an iterator pointing to the next
+ * endpoint to be tried. The function object should return the next iterator,
+ * but is permitted to return a different iterator so that endpoints may be
+ * skipped. The implementation guarantees that the function object will never
+ * be called with the end iterator.
+ *
+ * @param ec Set to indicate what error occurred, if any. If the sequence is
+ * empty, set to asio::error::not_found. Otherwise, contains the error
+ * from the last connection attempt.
+ *
+ * @returns On success, an iterator denoting the successfully connected
+ * endpoint. Otherwise, the end iterator.
+ *
+ * @par Example
+ * The following connect condition function object can be used to output
+ * information about the individual connection attempts:
+ * @code struct my_connect_condition
+ * {
+ *   template <typename Iterator>
+ *   Iterator operator()(
+ *       const asio::error_code& ec,
+ *       Iterator next)
+ *   {
+ *     if (ec) std::cout << "Error: " << ec.message() << std::endl;
+ *     std::cout << "Trying: " << next->endpoint() << std::endl;
+ *     return next;
+ *   }
+ * }; @endcode
+ * It would be used with the asio::connect function as follows:
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::resolver::iterator i = r.resolve(q), end;
+ * tcp::socket s(io_service);
+ * asio::error_code ec;
+ * i = asio::connect(s, i, end, my_connect_condition(), ec);
+ * if (ec)
+ * {
+ *   // An error occurred.
+ * }
+ * else
+ * {
+ *   std::cout << "Connected to: " << i->endpoint() << std::endl;
+ * } @endcode
+ */
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ConnectCondition>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end, ConnectCondition connect_condition,
+    asio::error_code& ec);
+
+/*@}*/
+
+/**
+ * @defgroup async_connect asio::async_connect
+ *
+ * @brief Asynchronously establishes a socket connection by trying each
+ * endpoint in a sequence.
+ */
+/*@{*/
+
+/// Asynchronously establishes a socket connection by trying each endpoint in a
+/// sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c async_connect
+ * member function, once for each endpoint in the sequence, until a connection
+ * is successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param handler The handler to be called when the connect operation
+ * completes. Copies will be made of the handler as required. The function
+ * signature of the handler must be:
+ * @code void handler(
+ *   // Result of operation. if the sequence is empty, set to
+ *   // asio::error::not_found. Otherwise, contains the
+ *   // error from the last connection attempt.
+ *   const asio::error_code& error,
+ *
+ *   // On success, an iterator denoting the successfully
+ *   // connected endpoint. Otherwise, the end iterator.
+ *   Iterator iterator
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation
+ * of the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @note This overload assumes that a default constructed object of type @c
+ * Iterator represents the end of the sequence. This is a valid assumption for
+ * iterator types such as @c asio::ip::tcp::resolver::iterator.
+ *
+ * @par Example
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::socket s(io_service);
+ *
+ * // ...
+ *
+ * r.async_resolve(q, resolve_handler);
+ *
+ * // ...
+ *
+ * void resolve_handler(
+ *     const asio::error_code& ec,
+ *     tcp::resolver::iterator i)
+ * {
+ *   if (!ec)
+ *   {
+ *     asio::async_connect(s, i, connect_handler);
+ *   }
+ * }
+ *
+ * // ...
+ *
+ * void connect_handler(
+ *     const asio::error_code& ec,
+ *     tcp::resolver::iterator i)
+ * {
+ *   // ...
+ * } @endcode
+ */
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ComposedConnectHandler>
+ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
+    void (asio::error_code, Iterator))
+async_connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, ASIO_MOVE_ARG(ComposedConnectHandler) handler);
+
+/// Asynchronously establishes a socket connection by trying each endpoint in a
+/// sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c async_connect
+ * member function, once for each endpoint in the sequence, until a connection
+ * is successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param end An iterator pointing to the end of a sequence of endpoints.
+ *
+ * @param handler The handler to be called when the connect operation
+ * completes. Copies will be made of the handler as required. The function
+ * signature of the handler must be:
+ * @code void handler(
+ *   // Result of operation. if the sequence is empty, set to
+ *   // asio::error::not_found. Otherwise, contains the
+ *   // error from the last connection attempt.
+ *   const asio::error_code& error,
+ *
+ *   // On success, an iterator denoting the successfully
+ *   // connected endpoint. Otherwise, the end iterator.
+ *   Iterator iterator
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation
+ * of the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @par Example
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::socket s(io_service);
+ *
+ * // ...
+ *
+ * r.async_resolve(q, resolve_handler);
+ *
+ * // ...
+ *
+ * void resolve_handler(
+ *     const asio::error_code& ec,
+ *     tcp::resolver::iterator i)
+ * {
+ *   if (!ec)
+ *   {
+ *     tcp::resolver::iterator end;
+ *     asio::async_connect(s, i, end, connect_handler);
+ *   }
+ * }
+ *
+ * // ...
+ *
+ * void connect_handler(
+ *     const asio::error_code& ec,
+ *     tcp::resolver::iterator i)
+ * {
+ *   // ...
+ * } @endcode
+ */
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ComposedConnectHandler>
+ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
+    void (asio::error_code, Iterator))
+async_connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end,
+    ASIO_MOVE_ARG(ComposedConnectHandler) handler);
+
+/// Asynchronously establishes a socket connection by trying each endpoint in a
+/// sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c async_connect
+ * member function, once for each endpoint in the sequence, until a connection
+ * is successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param connect_condition A function object that is called prior to each
+ * connection attempt. The signature of the function object must be:
+ * @code Iterator connect_condition(
+ *     const asio::error_code& ec,
+ *     Iterator next); @endcode
+ * The @c ec parameter contains the result from the most recent connect
+ * operation. Before the first connection attempt, @c ec is always set to
+ * indicate success. The @c next parameter is an iterator pointing to the next
+ * endpoint to be tried. The function object should return the next iterator,
+ * but is permitted to return a different iterator so that endpoints may be
+ * skipped. The implementation guarantees that the function object will never
+ * be called with the end iterator.
+ *
+ * @param handler The handler to be called when the connect operation
+ * completes. Copies will be made of the handler as required. The function
+ * signature of the handler must be:
+ * @code void handler(
+ *   // Result of operation. if the sequence is empty, set to
+ *   // asio::error::not_found. Otherwise, contains the
+ *   // error from the last connection attempt.
+ *   const asio::error_code& error,
+ *
+ *   // On success, an iterator denoting the successfully
+ *   // connected endpoint. Otherwise, the end iterator.
+ *   Iterator iterator
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation
+ * of the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @note This overload assumes that a default constructed object of type @c
+ * Iterator represents the end of the sequence. This is a valid assumption for
+ * iterator types such as @c asio::ip::tcp::resolver::iterator.
+ *
+ * @par Example
+ * The following connect condition function object can be used to output
+ * information about the individual connection attempts:
+ * @code struct my_connect_condition
+ * {
+ *   template <typename Iterator>
+ *   Iterator operator()(
+ *       const asio::error_code& ec,
+ *       Iterator next)
+ *   {
+ *     if (ec) std::cout << "Error: " << ec.message() << std::endl;
+ *     std::cout << "Trying: " << next->endpoint() << std::endl;
+ *     return next;
+ *   }
+ * }; @endcode
+ * It would be used with the asio::connect function as follows:
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::socket s(io_service);
+ *
+ * // ...
+ *
+ * r.async_resolve(q, resolve_handler);
+ *
+ * // ...
+ *
+ * void resolve_handler(
+ *     const asio::error_code& ec,
+ *     tcp::resolver::iterator i)
+ * {
+ *   if (!ec)
+ *   {
+ *     asio::async_connect(s, i,
+ *         my_connect_condition(),
+ *         connect_handler);
+ *   }
+ * }
+ *
+ * // ...
+ *
+ * void connect_handler(
+ *     const asio::error_code& ec,
+ *     tcp::resolver::iterator i)
+ * {
+ *   if (ec)
+ *   {
+ *     // An error occurred.
+ *   }
+ *   else
+ *   {
+ *     std::cout << "Connected to: " << i->endpoint() << std::endl;
+ *   }
+ * } @endcode
+ */
+template <typename Protocol, typename SocketService, typename Iterator,
+    typename ConnectCondition, typename ComposedConnectHandler>
+ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
+    void (asio::error_code, Iterator))
+async_connect(basic_socket<Protocol, SocketService>& s, Iterator begin,
+    ConnectCondition connect_condition,
+    ASIO_MOVE_ARG(ComposedConnectHandler) handler);
+
+/// Asynchronously establishes a socket connection by trying each endpoint in a
+/// sequence.
+/**
+ * This function attempts to connect a socket to one of a sequence of
+ * endpoints. It does this by repeated calls to the socket's @c async_connect
+ * member function, once for each endpoint in the sequence, until a connection
+ * is successfully established.
+ *
+ * @param s The socket to be connected. If the socket is already open, it will
+ * be closed.
+ *
+ * @param begin An iterator pointing to the start of a sequence of endpoints.
+ *
+ * @param end An iterator pointing to the end of a sequence of endpoints.
+ *
+ * @param connect_condition A function object that is called prior to each
+ * connection attempt. The signature of the function object must be:
+ * @code Iterator connect_condition(
+ *     const asio::error_code& ec,
+ *     Iterator next); @endcode
+ * The @c ec parameter contains the result from the most recent connect
+ * operation. Before the first connection attempt, @c ec is always set to
+ * indicate success. The @c next parameter is an iterator pointing to the next
+ * endpoint to be tried. The function object should return the next iterator,
+ * but is permitted to return a different iterator so that endpoints may be
+ * skipped. The implementation guarantees that the function object will never
+ * be called with the end iterator.
+ *
+ * @param handler The handler to be called when the connect operation
+ * completes. Copies will be made of the handler as required. The function
+ * signature of the handler must be:
+ * @code void handler(
+ *   // Result of operation. if the sequence is empty, set to
+ *   // asio::error::not_found. Otherwise, contains the
+ *   // error from the last connection attempt.
+ *   const asio::error_code& error,
+ *
+ *   // On success, an iterator denoting the successfully
+ *   // connected endpoint. Otherwise, the end iterator.
+ *   Iterator iterator
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation
+ * of the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @par Example
+ * The following connect condition function object can be used to output
+ * information about the individual connection attempts:
+ * @code struct my_connect_condition
+ * {
+ *   template <typename Iterator>
+ *   Iterator operator()(
+ *       const asio::error_code& ec,
+ *       Iterator next)
+ *   {
+ *     if (ec) std::cout << "Error: " << ec.message() << std::endl;
+ *     std::cout << "Trying: " << next->endpoint() << std::endl;
+ *     return next;
+ *   }
+ * }; @endcode
+ * It would be used with the asio::connect function as follows:
+ * @code tcp::resolver r(io_service);
+ * tcp::resolver::query q("host", "service");
+ * tcp::socket s(io_service);
+ *
+ * // ...
+ *
+ * r.async_resolve(q, resolve_handler);
+ *
+ * // ...
+ *
+ * void resolve_handler(
+ *     const asio::error_code& ec,
+ *     tcp::resolver::iterator i)
+ * {
+ *   if (!ec)
+ *   {
+ *     tcp::resolver::iterator end;
+ *     asio::async_connect(s, i, end,
+ *         my_connect_condition(),
+ *         connect_handler);
+ *   }
+ * }
+ *
+ * // ...
+ *
+ * void connect_handler(
+ *     const asio::error_code& ec,
+ *     tcp::resolver::iterator i)
+ * {
+ *   if (ec)
+ *   {
+ *     // An error occurred.
+ *   }
+ *   else
+ *   {
+ *     std::cout << "Connected to: " << i->endpoint() << std::endl;
+ *   }
+ * } @endcode
+ */
+template <typename Protocol, typename SocketService, typename Iterator,
+    typename ConnectCondition, typename ComposedConnectHandler>
+ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
+    void (asio::error_code, Iterator))
+async_connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end, ConnectCondition connect_condition,
+    ASIO_MOVE_ARG(ComposedConnectHandler) handler);
+
+/*@}*/
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/impl/connect.hpp"
+
+#endif
diff --git a/asio-1.10.6/include/asio/detail/addressof.hpp b/asio-1.10.6/include/asio/detail/addressof.hpp
new file mode 100644
index 0000000..63fb6f6
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/addressof.hpp
@@ -0,0 +1,27 @@
+//
+// detail/addressof.hpp
+// ~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_ADDRESSOF_HPP
+#define ASIO_DETAIL_ADDRESSOF_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <memory>
+
+namespace asio {
+namespace detail {
+
+using std::addressof;
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_ADDRESSOF_HPP
diff --git a/asio-1.10.6/include/asio/detail/array.hpp b/asio-1.10.6/include/asio/detail/array.hpp
new file mode 100644
index 0000000..07590f2
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/array.hpp
@@ -0,0 +1,27 @@
+//
+// detail/array.hpp
+// ~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_ARRAY_HPP
+#define ASIO_DETAIL_ARRAY_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <array>
+
+namespace asio {
+namespace detail {
+
+using std::array;
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_ARRAY_HPP
diff --git a/asio-1.10.6/include/asio/detail/array_fwd.hpp b/asio-1.10.6/include/asio/detail/array_fwd.hpp
new file mode 100644
index 0000000..59fa044
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/array_fwd.hpp
@@ -0,0 +1,29 @@
+//
+// detail/array_fwd.hpp
+// ~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_ARRAY_FWD_HPP
+#define ASIO_DETAIL_ARRAY_FWD_HPP
+
+
+#include "asio/detail/config.hpp"
+
+namespace boost {
+
+template<class T, std::size_t N>
+class array;
+
+} // namespace boost
+
+// Standard library components can't be forward declared, so we'll have to
+// include the array header. Fortunately, it's fairly lightweight and doesn't
+// add significantly to the compile time.
+# include <array>
+
+#endif // ASIO_DETAIL_ARRAY_FWD_HPP
diff --git a/asio-1.10.6/include/asio/detail/assert.hpp b/asio-1.10.6/include/asio/detail/assert.hpp
new file mode 100644
index 0000000..8dbe535
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/assert.hpp
@@ -0,0 +1,21 @@
+//
+// detail/assert.hpp
+// ~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_ASSERT_HPP
+#define ASIO_DETAIL_ASSERT_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <cassert>
+
+# define ASIO_ASSERT(expr) assert(expr)
+
+#endif // ASIO_DETAIL_ASSERT_HPP
diff --git a/asio-1.10.6/include/asio/detail/atomic_count.hpp b/asio-1.10.6/include/asio/detail/atomic_count.hpp
new file mode 100644
index 0000000..170ec31
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/atomic_count.hpp
@@ -0,0 +1,28 @@
+//
+// detail/atomic_count.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_ATOMIC_COUNT_HPP
+#define ASIO_DETAIL_ATOMIC_COUNT_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <atomic>
+
+namespace asio {
+namespace detail {
+
+typedef std::atomic<long> atomic_count;
+inline void increment(atomic_count& a, long b) { a += b; }
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_ATOMIC_COUNT_HPP
diff --git a/asio-1.10.6/include/asio/detail/base_from_completion_cond.hpp b/asio-1.10.6/include/asio/detail/base_from_completion_cond.hpp
new file mode 100644
index 0000000..03bb94b
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/base_from_completion_cond.hpp
@@ -0,0 +1,65 @@
+//
+// detail/base_from_completion_cond.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
+#define ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/completion_condition.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename CompletionCondition>
+class base_from_completion_cond
+{
+protected:
+  explicit base_from_completion_cond(CompletionCondition completion_condition)
+    : completion_condition_(completion_condition)
+  {
+  }
+
+  std::size_t check_for_completion(
+      const asio::error_code& ec,
+      std::size_t total_transferred)
+  {
+    return detail::adapt_completion_condition_result(
+        completion_condition_(ec, total_transferred));
+  }
+
+private:
+  CompletionCondition completion_condition_;
+};
+
+template <>
+class base_from_completion_cond<transfer_all_t>
+{
+protected:
+  explicit base_from_completion_cond(transfer_all_t)
+  {
+  }
+
+  static std::size_t check_for_completion(
+      const asio::error_code& ec,
+      std::size_t total_transferred)
+  {
+    return transfer_all_t()(ec, total_transferred);
+  }
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
diff --git a/asio-1.10.6/include/asio/detail/bind_handler.hpp b/asio-1.10.6/include/asio/detail/bind_handler.hpp
new file mode 100644
index 0000000..00c87c5
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/bind_handler.hpp
@@ -0,0 +1,486 @@
+//
+// detail/bind_handler.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_BIND_HANDLER_HPP
+#define ASIO_DETAIL_BIND_HANDLER_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_cont_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Handler, typename Arg1>
+class binder1
+{
+public:
+  binder1(const Handler& handler, const Arg1& arg1)
+    : handler_(handler),
+      arg1_(arg1)
+  {
+  }
+
+  binder1(Handler& handler, const Arg1& arg1)
+    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
+      arg1_(arg1)
+  {
+  }
+
+  void operator()()
+  {
+    handler_(static_cast<const Arg1&>(arg1_));
+  }
+
+  void operator()() const
+  {
+    handler_(arg1_);
+  }
+
+//private:
+  Handler handler_;
+  Arg1 arg1_;
+};
+
+template <typename Handler, typename Arg1>
+inline void* asio_handler_allocate(std::size_t size,
+    binder1<Handler, Arg1>* this_handler)
+{
+  return asio_handler_alloc_helpers::allocate(
+      size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1>
+inline void asio_handler_deallocate(void* pointer, std::size_t size,
+    binder1<Handler, Arg1>* this_handler)
+{
+  asio_handler_alloc_helpers::deallocate(
+      pointer, size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1>
+inline bool asio_handler_is_continuation(
+    binder1<Handler, Arg1>* this_handler)
+{
+  return asio_handler_cont_helpers::is_continuation(
+      this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1>
+inline void asio_handler_invoke(Function& function,
+    binder1<Handler, Arg1>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1>
+inline void asio_handler_invoke(const Function& function,
+    binder1<Handler, Arg1>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1>
+inline binder1<Handler, Arg1> bind_handler(Handler handler,
+    const Arg1& arg1)
+{
+  return binder1<Handler, Arg1>(handler, arg1);
+}
+
+template <typename Handler, typename Arg1, typename Arg2>
+class binder2
+{
+public:
+  binder2(const Handler& handler, const Arg1& arg1, const Arg2& arg2)
+    : handler_(handler),
+      arg1_(arg1),
+      arg2_(arg2)
+  {
+  }
+
+  binder2(Handler& handler, const Arg1& arg1, const Arg2& arg2)
+    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
+      arg1_(arg1),
+      arg2_(arg2)
+  {
+  }
+
+  void operator()()
+  {
+    handler_(static_cast<const Arg1&>(arg1_),
+        static_cast<const Arg2&>(arg2_));
+  }
+
+  void operator()() const
+  {
+    handler_(arg1_, arg2_);
+  }
+
+//private:
+  Handler handler_;
+  Arg1 arg1_;
+  Arg2 arg2_;
+};
+
+template <typename Handler, typename Arg1, typename Arg2>
+inline void* asio_handler_allocate(std::size_t size,
+    binder2<Handler, Arg1, Arg2>* this_handler)
+{
+  return asio_handler_alloc_helpers::allocate(
+      size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2>
+inline void asio_handler_deallocate(void* pointer, std::size_t size,
+    binder2<Handler, Arg1, Arg2>* this_handler)
+{
+  asio_handler_alloc_helpers::deallocate(
+      pointer, size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2>
+inline bool asio_handler_is_continuation(
+    binder2<Handler, Arg1, Arg2>* this_handler)
+{
+  return asio_handler_cont_helpers::is_continuation(
+      this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1, typename Arg2>
+inline void asio_handler_invoke(Function& function,
+    binder2<Handler, Arg1, Arg2>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1, typename Arg2>
+inline void asio_handler_invoke(const Function& function,
+    binder2<Handler, Arg1, Arg2>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2>
+inline binder2<Handler, Arg1, Arg2> bind_handler(Handler handler,
+    const Arg1& arg1, const Arg2& arg2)
+{
+  return binder2<Handler, Arg1, Arg2>(handler, arg1, arg2);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
+class binder3
+{
+public:
+  binder3(const Handler& handler, const Arg1& arg1, const Arg2& arg2,
+      const Arg3& arg3)
+    : handler_(handler),
+      arg1_(arg1),
+      arg2_(arg2),
+      arg3_(arg3)
+  {
+  }
+
+  binder3(Handler& handler, const Arg1& arg1, const Arg2& arg2,
+      const Arg3& arg3)
+    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
+      arg1_(arg1),
+      arg2_(arg2),
+      arg3_(arg3)
+  {
+  }
+
+  void operator()()
+  {
+    handler_(static_cast<const Arg1&>(arg1_),
+        static_cast<const Arg2&>(arg2_),
+        static_cast<const Arg3&>(arg3_));
+  }
+
+  void operator()() const
+  {
+    handler_(arg1_, arg2_, arg3_);
+  }
+
+//private:
+  Handler handler_;
+  Arg1 arg1_;
+  Arg2 arg2_;
+  Arg3 arg3_;
+};
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
+inline void* asio_handler_allocate(std::size_t size,
+    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
+{
+  return asio_handler_alloc_helpers::allocate(
+      size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
+inline void asio_handler_deallocate(void* pointer, std::size_t size,
+    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
+{
+  asio_handler_alloc_helpers::deallocate(
+      pointer, size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
+inline bool asio_handler_is_continuation(
+    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
+{
+  return asio_handler_cont_helpers::is_continuation(
+      this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1, typename Arg2,
+    typename Arg3>
+inline void asio_handler_invoke(Function& function,
+    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1, typename Arg2,
+    typename Arg3>
+inline void asio_handler_invoke(const Function& function,
+    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
+inline binder3<Handler, Arg1, Arg2, Arg3> bind_handler(Handler handler,
+    const Arg1& arg1, const Arg2& arg2, const Arg3& arg3)
+{
+  return binder3<Handler, Arg1, Arg2, Arg3>(handler, arg1, arg2, arg3);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4>
+class binder4
+{
+public:
+  binder4(const Handler& handler, const Arg1& arg1, const Arg2& arg2,
+      const Arg3& arg3, const Arg4& arg4)
+    : handler_(handler),
+      arg1_(arg1),
+      arg2_(arg2),
+      arg3_(arg3),
+      arg4_(arg4)
+  {
+  }
+
+  binder4(Handler& handler, const Arg1& arg1, const Arg2& arg2,
+      const Arg3& arg3, const Arg4& arg4)
+    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
+      arg1_(arg1),
+      arg2_(arg2),
+      arg3_(arg3),
+      arg4_(arg4)
+  {
+  }
+
+  void operator()()
+  {
+    handler_(static_cast<const Arg1&>(arg1_),
+        static_cast<const Arg2&>(arg2_),
+        static_cast<const Arg3&>(arg3_),
+        static_cast<const Arg4&>(arg4_));
+  }
+
+  void operator()() const
+  {
+    handler_(arg1_, arg2_, arg3_, arg4_);
+  }
+
+//private:
+  Handler handler_;
+  Arg1 arg1_;
+  Arg2 arg2_;
+  Arg3 arg3_;
+  Arg4 arg4_;
+};
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4>
+inline void* asio_handler_allocate(std::size_t size,
+    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
+{
+  return asio_handler_alloc_helpers::allocate(
+      size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4>
+inline void asio_handler_deallocate(void* pointer, std::size_t size,
+    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
+{
+  asio_handler_alloc_helpers::deallocate(
+      pointer, size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4>
+inline bool asio_handler_is_continuation(
+    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
+{
+  return asio_handler_cont_helpers::is_continuation(
+      this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1, typename Arg2,
+    typename Arg3, typename Arg4>
+inline void asio_handler_invoke(Function& function,
+    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1, typename Arg2,
+    typename Arg3, typename Arg4>
+inline void asio_handler_invoke(const Function& function,
+    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4>
+inline binder4<Handler, Arg1, Arg2, Arg3, Arg4> bind_handler(
+    Handler handler, const Arg1& arg1, const Arg2& arg2,
+    const Arg3& arg3, const Arg4& arg4)
+{
+  return binder4<Handler, Arg1, Arg2, Arg3, Arg4>(handler, arg1, arg2, arg3,
+      arg4);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4, typename Arg5>
+class binder5
+{
+public:
+  binder5(const Handler& handler, const Arg1& arg1, const Arg2& arg2,
+      const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
+    : handler_(handler),
+      arg1_(arg1),
+      arg2_(arg2),
+      arg3_(arg3),
+      arg4_(arg4),
+      arg5_(arg5)
+  {
+  }
+
+  binder5(Handler& handler, const Arg1& arg1, const Arg2& arg2,
+      const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
+    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
+      arg1_(arg1),
+      arg2_(arg2),
+      arg3_(arg3),
+      arg4_(arg4),
+      arg5_(arg5)
+  {
+  }
+
+  void operator()()
+  {
+    handler_(static_cast<const Arg1&>(arg1_),
+        static_cast<const Arg2&>(arg2_),
+        static_cast<const Arg3&>(arg3_),
+        static_cast<const Arg4&>(arg4_),
+        static_cast<const Arg5&>(arg5_));
+  }
+
+  void operator()() const
+  {
+    handler_(arg1_, arg2_, arg3_, arg4_, arg5_);
+  }
+
+//private:
+  Handler handler_;
+  Arg1 arg1_;
+  Arg2 arg2_;
+  Arg3 arg3_;
+  Arg4 arg4_;
+  Arg5 arg5_;
+};
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4, typename Arg5>
+inline void* asio_handler_allocate(std::size_t size,
+    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
+{
+  return asio_handler_alloc_helpers::allocate(
+      size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4, typename Arg5>
+inline void asio_handler_deallocate(void* pointer, std::size_t size,
+    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
+{
+  asio_handler_alloc_helpers::deallocate(
+      pointer, size, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4, typename Arg5>
+inline bool asio_handler_is_continuation(
+    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
+{
+  return asio_handler_cont_helpers::is_continuation(
+      this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1, typename Arg2,
+    typename Arg3, typename Arg4, typename Arg5>
+inline void asio_handler_invoke(Function& function,
+    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Function, typename Handler, typename Arg1, typename Arg2,
+    typename Arg3, typename Arg4, typename Arg5>
+inline void asio_handler_invoke(const Function& function,
+    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->handler_);
+}
+
+template <typename Handler, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4, typename Arg5>
+inline binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5> bind_handler(
+    Handler handler, const Arg1& arg1, const Arg2& arg2,
+    const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
+{
+  return binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>(handler, arg1, arg2,
+      arg3, arg4, arg5);
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_BIND_HANDLER_HPP
diff --git a/asio-1.10.6/include/asio/detail/buffer_sequence_adapter.hpp b/asio-1.10.6/include/asio/detail/buffer_sequence_adapter.hpp
new file mode 100644
index 0000000..9c463b8
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/buffer_sequence_adapter.hpp
@@ -0,0 +1,342 @@
+//
+// detail/buffer_sequence_adapter.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
+#define ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/buffer.hpp"
+#include "asio/detail/array_fwd.hpp"
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class buffer_sequence_adapter_base
+{
+protected:
+  // The maximum number of buffers to support in a single operation.
+  enum { max_buffers = 64 < max_iov_len ? 64 : max_iov_len };
+
+  typedef iovec native_buffer_type;
+
+  static void init_iov_base(void*& base, void* addr)
+  {
+    base = addr;
+  }
+
+  template <typename T>
+  static void init_iov_base(T& base, void* addr)
+  {
+    base = static_cast<T>(addr);
+  }
+
+  static void init_native_buffer(iovec& iov,
+      const asio::mutable_buffer& buffer)
+  {
+    init_iov_base(iov.iov_base, asio::buffer_cast<void*>(buffer));
+    iov.iov_len = asio::buffer_size(buffer);
+  }
+
+  static void init_native_buffer(iovec& iov,
+      const asio::const_buffer& buffer)
+  {
+    init_iov_base(iov.iov_base, const_cast<void*>(
+          asio::buffer_cast<const void*>(buffer)));
+    iov.iov_len = asio::buffer_size(buffer);
+  }
+};
+
+// Helper class to translate buffers into the native buffer representation.
+template <typename Buffer, typename Buffers>
+class buffer_sequence_adapter
+  : buffer_sequence_adapter_base
+{
+public:
+  explicit buffer_sequence_adapter(const Buffers& buffer_sequence)
+    : count_(0), total_buffer_size_(0)
+  {
+    typename Buffers::const_iterator iter = buffer_sequence.begin();
+    typename Buffers::const_iterator end = buffer_sequence.end();
+    for (; iter != end && count_ < max_buffers; ++iter, ++count_)
+    {
+      Buffer buffer(*iter);
+      init_native_buffer(buffers_[count_], buffer);
+      total_buffer_size_ += asio::buffer_size(buffer);
+    }
+  }
+
+  native_buffer_type* buffers()
+  {
+    return buffers_;
+  }
+
+  std::size_t count() const
+  {
+    return count_;
+  }
+
+  bool all_empty() const
+  {
+    return total_buffer_size_ == 0;
+  }
+
+  static bool all_empty(const Buffers& buffer_sequence)
+  {
+    typename Buffers::const_iterator iter = buffer_sequence.begin();
+    typename Buffers::const_iterator end = buffer_sequence.end();
+    std::size_t i = 0;
+    for (; iter != end && i < max_buffers; ++iter, ++i)
+      if (asio::buffer_size(Buffer(*iter)) > 0)
+        return false;
+    return true;
+  }
+
+  static void validate(const Buffers& buffer_sequence)
+  {
+    typename Buffers::const_iterator iter = buffer_sequence.begin();
+    typename Buffers::const_iterator end = buffer_sequence.end();
+    for (; iter != end; ++iter)
+    {
+      Buffer buffer(*iter);
+      asio::buffer_cast<const void*>(buffer);
+    }
+  }
+
+  static Buffer first(const Buffers& buffer_sequence)
+  {
+    typename Buffers::const_iterator iter = buffer_sequence.begin();
+    typename Buffers::const_iterator end = buffer_sequence.end();
+    for (; iter != end; ++iter)
+    {
+      Buffer buffer(*iter);
+      if (asio::buffer_size(buffer) != 0)
+        return buffer;
+    }
+    return Buffer();
+  }
+
+private:
+  native_buffer_type buffers_[max_buffers];
+  std::size_t count_;
+  std::size_t total_buffer_size_;
+};
+
+template <typename Buffer>
+class buffer_sequence_adapter<Buffer, asio::mutable_buffers_1>
+  : buffer_sequence_adapter_base
+{
+public:
+  explicit buffer_sequence_adapter(
+      const asio::mutable_buffers_1& buffer_sequence)
+  {
+    init_native_buffer(buffer_, Buffer(buffer_sequence));
+    total_buffer_size_ = asio::buffer_size(buffer_sequence);
+  }
+
+  native_buffer_type* buffers()
+  {
+    return &buffer_;
+  }
+
+  std::size_t count() const
+  {
+    return 1;
+  }
+
+  bool all_empty() const
+  {
+    return total_buffer_size_ == 0;
+  }
+
+  static bool all_empty(const asio::mutable_buffers_1& buffer_sequence)
+  {
+    return asio::buffer_size(buffer_sequence) == 0;
+  }
+
+  static void validate(const asio::mutable_buffers_1& buffer_sequence)
+  {
+    asio::buffer_cast<const void*>(buffer_sequence);
+  }
+
+  static Buffer first(const asio::mutable_buffers_1& buffer_sequence)
+  {
+    return Buffer(buffer_sequence);
+  }
+
+private:
+  native_buffer_type buffer_;
+  std::size_t total_buffer_size_;
+};
+
+template <typename Buffer>
+class buffer_sequence_adapter<Buffer, asio::const_buffers_1>
+  : buffer_sequence_adapter_base
+{
+public:
+  explicit buffer_sequence_adapter(
+      const asio::const_buffers_1& buffer_sequence)
+  {
+    init_native_buffer(buffer_, Buffer(buffer_sequence));
+    total_buffer_size_ = asio::buffer_size(buffer_sequence);
+  }
+
+  native_buffer_type* buffers()
+  {
+    return &buffer_;
+  }
+
+  std::size_t count() const
+  {
+    return 1;
+  }
+
+  bool all_empty() const
+  {
+    return total_buffer_size_ == 0;
+  }
+
+  static bool all_empty(const asio::const_buffers_1& buffer_sequence)
+  {
+    return asio::buffer_size(buffer_sequence) == 0;
+  }
+
+  static void validate(const asio::const_buffers_1& buffer_sequence)
+  {
+    asio::buffer_cast<const void*>(buffer_sequence);
+  }
+
+  static Buffer first(const asio::const_buffers_1& buffer_sequence)
+  {
+    return Buffer(buffer_sequence);
+  }
+
+private:
+  native_buffer_type buffer_;
+  std::size_t total_buffer_size_;
+};
+
+template <typename Buffer, typename Elem>
+class buffer_sequence_adapter<Buffer, boost::array<Elem, 2> >
+  : buffer_sequence_adapter_base
+{
+public:
+  explicit buffer_sequence_adapter(
+      const boost::array<Elem, 2>& buffer_sequence)
+  {
+    init_native_buffer(buffers_[0], Buffer(buffer_sequence[0]));
+    init_native_buffer(buffers_[1], Buffer(buffer_sequence[1]));
+    total_buffer_size_ = asio::buffer_size(buffer_sequence[0])
+      + asio::buffer_size(buffer_sequence[1]);
+  }
+
+  native_buffer_type* buffers()
+  {
+    return buffers_;
+  }
+
+  std::size_t count() const
+  {
+    return 2;
+  }
+
+  bool all_empty() const
+  {
+    return total_buffer_size_ == 0;
+  }
+
+  static bool all_empty(const boost::array<Elem, 2>& buffer_sequence)
+  {
+    return asio::buffer_size(buffer_sequence[0]) == 0
+      && asio::buffer_size(buffer_sequence[1]) == 0;
+  }
+
+  static void validate(const boost::array<Elem, 2>& buffer_sequence)
+  {
+    asio::buffer_cast<const void*>(buffer_sequence[0]);
+    asio::buffer_cast<const void*>(buffer_sequence[1]);
+  }
+
+  static Buffer first(const boost::array<Elem, 2>& buffer_sequence)
+  {
+    return Buffer(asio::buffer_size(buffer_sequence[0]) != 0
+        ? buffer_sequence[0] : buffer_sequence[1]);
+  }
+
+private:
+  native_buffer_type buffers_[2];
+  std::size_t total_buffer_size_;
+};
+
+
+template <typename Buffer, typename Elem>
+class buffer_sequence_adapter<Buffer, std::array<Elem, 2> >
+  : buffer_sequence_adapter_base
+{
+public:
+  explicit buffer_sequence_adapter(
+      const std::array<Elem, 2>& buffer_sequence)
+  {
+    init_native_buffer(buffers_[0], Buffer(buffer_sequence[0]));
+    init_native_buffer(buffers_[1], Buffer(buffer_sequence[1]));
+    total_buffer_size_ = asio::buffer_size(buffer_sequence[0])
+      + asio::buffer_size(buffer_sequence[1]);
+  }
+
+  native_buffer_type* buffers()
+  {
+    return buffers_;
+  }
+
+  std::size_t count() const
+  {
+    return 2;
+  }
+
+  bool all_empty() const
+  {
+    return total_buffer_size_ == 0;
+  }
+
+  static bool all_empty(const std::array<Elem, 2>& buffer_sequence)
+  {
+    return asio::buffer_size(buffer_sequence[0]) == 0
+      && asio::buffer_size(buffer_sequence[1]) == 0;
+  }
+
+  static void validate(const std::array<Elem, 2>& buffer_sequence)
+  {
+    asio::buffer_cast<const void*>(buffer_sequence[0]);
+    asio::buffer_cast<const void*>(buffer_sequence[1]);
+  }
+
+  static Buffer first(const std::array<Elem, 2>& buffer_sequence)
+  {
+    return Buffer(asio::buffer_size(buffer_sequence[0]) != 0
+        ? buffer_sequence[0] : buffer_sequence[1]);
+  }
+
+private:
+  native_buffer_type buffers_[2];
+  std::size_t total_buffer_size_;
+};
+
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/buffer_sequence_adapter.ipp"
+
+#endif // ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
diff --git a/asio-1.10.6/include/asio/detail/call_stack.hpp b/asio-1.10.6/include/asio/detail/call_stack.hpp
new file mode 100644
index 0000000..1c005eb
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/call_stack.hpp
@@ -0,0 +1,122 @@
+//
+// detail/call_stack.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_CALL_STACK_HPP
+#define ASIO_DETAIL_CALL_STACK_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/tss_ptr.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+// Helper class to determine whether or not the current thread is inside an
+// invocation of io_service::run() for a specified io_service object.
+template <typename Key, typename Value = unsigned char>
+class call_stack
+{
+public:
+  // Context class automatically pushes the key/value pair on to the stack.
+  class context
+    : private noncopyable
+  {
+  public:
+    // Push the key on to the stack.
+    explicit context(Key* k)
+      : key_(k),
+        next_(call_stack<Key, Value>::top_)
+    {
+      value_ = reinterpret_cast<unsigned char*>(this);
+      call_stack<Key, Value>::top_ = this;
+    }
+
+    // Push the key/value pair on to the stack.
+    context(Key* k, Value& v)
+      : key_(k),
+        value_(&v),
+        next_(call_stack<Key, Value>::top_)
+    {
+      call_stack<Key, Value>::top_ = this;
+    }
+
+    // Pop the key/value pair from the stack.
+    ~context()
+    {
+      call_stack<Key, Value>::top_ = next_;
+    }
+
+    // Find the next context with the same key.
+    Value* next_by_key() const
+    {
+      context* elem = next_;
+      while (elem)
+      {
+        if (elem->key_ == key_)
+          return elem->value_;
+        elem = elem->next_;
+      }
+      return 0;
+    }
+
+  private:
+    friend class call_stack<Key, Value>;
+
+    // The key associated with the context.
+    Key* key_;
+
+    // The value associated with the context.
+    Value* value_;
+
+    // The next element in the stack.
+    context* next_;
+  };
+
+  friend class context;
+
+  // Determine whether the specified owner is on the stack. Returns address of
+  // key if present, 0 otherwise.
+  static Value* contains(Key* k)
+  {
+    context* elem = top_;
+    while (elem)
+    {
+      if (elem->key_ == k)
+        return elem->value_;
+      elem = elem->next_;
+    }
+    return 0;
+  }
+
+  // Obtain the value at the top of the stack.
+  static Value* top()
+  {
+    context* elem = top_;
+    return elem ? elem->value_ : 0;
+  }
+
+private:
+  // The top of the stack of calls for the current thread.
+  static tss_ptr<context> top_;
+};
+
+template <typename Key, typename Value>
+tss_ptr<typename call_stack<Key, Value>::context>
+call_stack<Key, Value>::top_;
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_CALL_STACK_HPP
diff --git a/asio-1.10.6/include/asio/detail/completion_handler.hpp b/asio-1.10.6/include/asio/detail/completion_handler.hpp
new file mode 100644
index 0000000..75c11f2
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/completion_handler.hpp
@@ -0,0 +1,78 @@
+//
+// detail/completion_handler.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_COMPLETION_HANDLER_HPP
+#define ASIO_DETAIL_COMPLETION_HANDLER_HPP
+
+
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/config.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/operation.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Handler>
+class completion_handler : public operation
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(completion_handler);
+
+  completion_handler(Handler& h)
+    : operation(&completion_handler::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(h))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    completion_handler* h(static_cast<completion_handler*>(base));
+    ptr p = { asio::detail::addressof(h->handler_), h, h };
+
+    ASIO_HANDLER_COMPLETION((h));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    Handler handler(ASIO_MOVE_CAST(Handler)(h->handler_));
+    p.h = asio::detail::addressof(handler);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN(());
+      asio_handler_invoke_helpers::invoke(handler, handler);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_COMPLETION_HANDLER_HPP
diff --git a/asio-1.10.6/include/asio/detail/config.hpp b/asio-1.10.6/include/asio/detail/config.hpp
new file mode 100644
index 0000000..15797ee
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/config.hpp
@@ -0,0 +1,306 @@
+//
+// detail/config.hpp
+// ~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_CONFIG_HPP
+#define ASIO_DETAIL_CONFIG_HPP
+
+# define ASIO_DISABLE_BOOST_ARRAY 1
+# define ASIO_DISABLE_BOOST_ASSERT 1
+# define ASIO_DISABLE_BOOST_BIND 1
+# define ASIO_DISABLE_BOOST_CHRONO 1
+# define ASIO_DISABLE_BOOST_DATE_TIME 1
+# define ASIO_DISABLE_BOOST_LIMITS 1
+# define ASIO_DISABLE_BOOST_REGEX 1
+# define ASIO_DISABLE_BOOST_STATIC_CONSTANT 1
+# define ASIO_DISABLE_BOOST_THROW_EXCEPTION 1
+# define ASIO_DISABLE_BOOST_WORKAROUND 1
+
+// Default to a header-only implementation. The user must specifically request
+// separate compilation by defining either ASIO_SEPARATE_COMPILATION or
+// ASIO_DYN_LINK (as a DLL/shared library implies separate compilation).
+
+# define ASIO_DECL inline
+
+// If ASIO_DECL isn't defined yet define it now.
+#if !defined(ASIO_DECL)
+# define ASIO_DECL
+#endif // !defined(ASIO_DECL)
+
+// Microsoft Visual C++ detection.
+
+// Clang / libc++ detection.
+# if (__cplusplus >= 201103)
+#  if __has_include(<__config>)
+#   include <__config>
+#   if defined(_LIBCPP_VERSION)
+#    define ASIO_HAS_CLANG_LIBCXX 1
+#   endif // defined(_LIBCPP_VERSION)
+#  endif // __has_include(<__config>)
+# endif // (__cplusplus >= 201103)
+
+// Support move construction and assignment on compilers known to allow it.
+
+// If ASIO_MOVE_CAST isn't defined, and move support is available, define
+// ASIO_MOVE_ARG and ASIO_MOVE_CAST to take advantage of rvalue
+// references and perfect forwarding.
+#if defined(ASIO_HAS_MOVE) && !defined(ASIO_MOVE_CAST)
+# define ASIO_MOVE_ARG(type) type&&
+# define ASIO_MOVE_CAST(type) static_cast<type&&>
+# define ASIO_MOVE_CAST2(type1, type2) static_cast<type1, type2&&>
+#endif // defined(ASIO_HAS_MOVE) && !defined(ASIO_MOVE_CAST)
+
+// If ASIO_MOVE_CAST still isn't defined, default to a C++03-compatible
+// implementation. Note that older g++ and MSVC versions don't like it when you
+// pass a non-member function through a const reference, so for most compilers
+// we'll play it safe and stick with the old approach of passing the handler by
+// value.
+#if !defined(ASIO_MOVE_CAST)
+# if defined(__GNUC__)
+#  if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
+#   define ASIO_MOVE_ARG(type) const type&
+#  else // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
+#   define ASIO_MOVE_ARG(type) type
+#  endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
+# else
+#  define ASIO_MOVE_ARG(type) type
+# endif
+# define ASIO_MOVE_CAST(type) static_cast<const type&>
+# define ASIO_MOVE_CAST2(type1, type2) static_cast<const type1, type2&>
+#endif // !defined(ASIO_MOVE_CAST)
+
+// Support variadic templates on compilers known to allow it.
+
+// Support constexpr on compilers known to allow it.
+#if !defined(ASIO_CONSTEXPR)
+#  define ASIO_CONSTEXPR constexpr
+#endif // !defined(ASIO_CONSTEXPR)
+
+// Standard library support for system errors.
+
+// Compliant C++11 compilers put noexcept specifiers on error_category members.
+#if !defined(ASIO_ERROR_CATEGORY_NOEXCEPT)
+# if (BOOST_VERSION >= 105300)
+#  define ASIO_ERROR_CATEGORY_NOEXCEPT BOOST_NOEXCEPT
+# else
+#  if __has_feature(__cxx_noexcept__)
+#   define ASIO_ERROR_CATEGORY_NOEXCEPT noexcept(true)
+#  endif // __has_feature(__cxx_noexcept__)
+# endif
+# if !defined(ASIO_ERROR_CATEGORY_NOEXCEPT)
+#  define ASIO_ERROR_CATEGORY_NOEXCEPT
+# endif // !defined(ASIO_ERROR_CATEGORY_NOEXCEPT)
+#endif // !defined(ASIO_ERROR_CATEGORY_NOEXCEPT)
+
+// Standard library support for arrays.
+
+// Standard library support for shared_ptr and weak_ptr.
+
+// Standard library support for atomic operations.
+
+// Standard library support for chrono. Some standard libraries (such as the
+// libstdc++ shipped with gcc 4.6) provide monotonic_clock as per early C++0x
+// drafts, rather than the eventually standardised name of steady_clock.
+
+// Boost support for chrono.
+
+// Boost support for the DateTime library.
+
+// Standard library support for addressof.
+
+// Standard library support for the function class.
+
+// Standard library support for type traits.
+
+// Standard library support for the cstdint header.
+
+// Standard library support for the thread class.
+
+// Standard library support for the mutex and condition variable classes.
+
+// WinRT target.
+# if defined(__cplusplus_winrt)
+#  include <winapifamily.h>
+#  if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)     && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#   define ASIO_WINDOWS_RUNTIME 1
+#  endif // WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+         // && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+# endif // defined(__cplusplus_winrt)
+
+// Windows target. Excludes WinRT.
+
+// Windows: target OS version.
+
+// Windows: minimise header inclusion.
+
+// Windows: suppress definition of "min" and "max" macros.
+
+// Windows: IO Completion Ports.
+
+// On POSIX (and POSIX-like) platforms we need to include unistd.h in order to
+// get access to the various platform feature macros, e.g. to be able to test
+// for threads support.
+#if !defined(ASIO_HAS_UNISTD_H)
+#  if defined(unix)     || defined(__unix)     || defined(_XOPEN_SOURCE)     || defined(_POSIX_SOURCE)     || (defined(__MACH__) && defined(__APPLE__))     || defined(__FreeBSD__)     || defined(__NetBSD__)     || defined(__OpenBSD__)     || defined(__linux__)
+#   define ASIO_HAS_UNISTD_H 1
+#  endif
+#endif // !defined(ASIO_HAS_UNISTD_H)
+#if defined(ASIO_HAS_UNISTD_H)
+# include <unistd.h>
+#endif // defined(ASIO_HAS_UNISTD_H)
+
+// Linux: epoll, eventfd and timerfd.
+#if defined(__linux__)
+# include <linux/version.h>
+# if !defined(ASIO_HAS_EPOLL)
+# endif // !defined(ASIO_HAS_EPOLL)
+#  if defined(ASIO_HAS_EPOLL)
+#   if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
+#    define ASIO_HAS_TIMERFD 1
+#   endif // (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
+#  endif // defined(ASIO_HAS_EPOLL)
+#endif // defined(__linux__)
+
+// Mac OS X, FreeBSD, NetBSD, OpenBSD: kqueue.
+#if (defined(__MACH__) && defined(__APPLE__))    || defined(__FreeBSD__)    || defined(__NetBSD__)    || defined(__OpenBSD__)
+#endif // (defined(__MACH__) && defined(__APPLE__))
+       //   || defined(__FreeBSD__)
+       //   || defined(__NetBSD__)
+       //   || defined(__OpenBSD__)
+
+// Solaris: /dev/poll.
+#if defined(__sun)
+# if !defined(ASIO_HAS_DEV_POLL)
+#  if !defined(ASIO_DISABLE_DEV_POLL)
+#   define ASIO_HAS_DEV_POLL 1
+#  endif // !defined(ASIO_DISABLE_DEV_POLL)
+# endif // !defined(ASIO_HAS_DEV_POLL)
+#endif // defined(__sun)
+
+// Serial ports.
+        //   || !defined(ASIO_WINDOWS)
+        //   && !defined(ASIO_WINDOWS_RUNTIME)
+        //   && !defined(__CYGWIN__)
+
+// Windows: stream handles.
+# if !defined(ASIO_DISABLE_WINDOWS_STREAM_HANDLE)
+# endif // !defined(ASIO_DISABLE_WINDOWS_STREAM_HANDLE)
+
+// Windows: random access handles.
+# if !defined(ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
+# endif // !defined(ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
+
+// Windows: object handles.
+# if !defined(ASIO_DISABLE_WINDOWS_OBJECT_HANDLE)
+# endif // !defined(ASIO_DISABLE_WINDOWS_OBJECT_HANDLE)
+
+// Windows: OVERLAPPED wrapper.
+# if !defined(ASIO_DISABLE_WINDOWS_OVERLAPPED_PTR)
+# endif // !defined(ASIO_DISABLE_WINDOWS_OVERLAPPED_PTR)
+
+// POSIX: stream-oriented file descriptors.
+
+// UNIX domain sockets.
+
+// Can use sigaction() instead of signal().
+#if !defined(ASIO_HAS_SIGACTION)
+# if !defined(ASIO_DISABLE_SIGACTION)
+#   define ASIO_HAS_SIGACTION 1
+         //   && !defined(ASIO_WINDOWS_RUNTIME)
+         //   && !defined(__CYGWIN__)
+# endif // !defined(ASIO_DISABLE_SIGACTION)
+#endif // !defined(ASIO_HAS_SIGACTION)
+
+// Can use signal().
+#if !defined(ASIO_HAS_SIGNAL)
+# if !defined(ASIO_DISABLE_SIGNAL)
+#  if !defined(UNDER_CE)
+#   define ASIO_HAS_SIGNAL 1
+#  endif // !defined(UNDER_CE)
+# endif // !defined(ASIO_DISABLE_SIGNAL)
+#endif // !defined(ASIO_HAS_SIGNAL)
+
+// Can use getaddrinfo() and getnameinfo().
+
+// Whether standard iostreams are disabled.
+
+// Whether exception handling is disabled.
+#if !defined(ASIO_NO_EXCEPTIONS)
+#endif // !defined(ASIO_NO_EXCEPTIONS)
+
+// Whether the typeid operator is supported.
+#if !defined(ASIO_NO_TYPEID)
+#endif // !defined(ASIO_NO_TYPEID)
+
+// Threads.
+
+// POSIX threads.
+#if !defined(ASIO_HAS_PTHREADS)
+#  if   defined(_POSIX_THREADS)
+#   define ASIO_HAS_PTHREADS 1
+#  endif // defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_HAS_PTHREADS)
+#endif // !defined(ASIO_HAS_PTHREADS)
+
+// Helper to prevent macro expansion.
+#define ASIO_PREVENT_MACRO_SUBSTITUTION
+
+// Helper to define in-class constants.
+#if !defined(ASIO_STATIC_CONSTANT)
+#  define ASIO_STATIC_CONSTANT(type, assignment)      static const type assignment
+#endif // !defined(ASIO_STATIC_CONSTANT)
+
+// Boost array library.
+
+// Boost assert macro.
+
+// Boost limits header.
+
+// Boost throw_exception function.
+
+// Boost regex library.
+
+// Boost bind function.
+
+// Boost's BOOST_WORKAROUND macro.
+
+// Microsoft Visual C++'s secure C runtime library.
+#if !defined(ASIO_HAS_SECURE_RTL)
+# if !defined(ASIO_DISABLE_SECURE_RTL)
+         // && (ASIO_MSVC >= 1400)
+         // && !defined(UNDER_CE)
+# endif // !defined(ASIO_DISABLE_SECURE_RTL)
+#endif // !defined(ASIO_HAS_SECURE_RTL)
+
+// Handler hooking. Disabled for ancient Borland C++ and gcc compilers.
+#if !defined(ASIO_HAS_HANDLER_HOOKS)
+# if !defined(ASIO_DISABLE_HANDLER_HOOKS)
+#  if defined(__GNUC__)
+#   if (__GNUC__ >= 3)
+#    define ASIO_HAS_HANDLER_HOOKS 1
+#   endif // (__GNUC__ >= 3)
+#  else
+#   define ASIO_HAS_HANDLER_HOOKS 1
+#  endif // !defined(__BORLANDC__)
+# endif // !defined(ASIO_DISABLE_HANDLER_HOOKS)
+#endif // !defined(ASIO_HAS_HANDLER_HOOKS)
+
+// Support for the __thread keyword extension.
+#if !defined(ASIO_THREAD_KEYWORD)
+# define ASIO_THREAD_KEYWORD __thread
+#endif // !defined(ASIO_THREAD_KEYWORD)
+
+// Support for POSIX ssize_t typedef.
+#if !defined(ASIO_DISABLE_SSIZE_T)
+# if defined(__linux__)     || (defined(__MACH__) && defined(__APPLE__))
+#  define ASIO_HAS_SSIZE_T 1
+# endif // defined(__linux__)
+        //   || (defined(__MACH__) && defined(__APPLE__))
+#endif // !defined(ASIO_DISABLE_SSIZE_T)
+
+#endif // ASIO_DETAIL_CONFIG_HPP
diff --git a/asio-1.10.6/include/asio/detail/consuming_buffers.hpp b/asio-1.10.6/include/asio/detail/consuming_buffers.hpp
new file mode 100644
index 0000000..79f1d24
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/consuming_buffers.hpp
@@ -0,0 +1,289 @@
+//
+// detail/consuming_buffers.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_CONSUMING_BUFFERS_HPP
+#define ASIO_DETAIL_CONSUMING_BUFFERS_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include <iterator>
+#include "asio/buffer.hpp"
+#include "asio/detail/limits.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+// A proxy iterator for a sub-range in a list of buffers.
+template <typename Buffer, typename Buffer_Iterator>
+class consuming_buffers_iterator
+{
+public:
+  /// The type used for the distance between two iterators.
+  typedef std::ptrdiff_t difference_type;
+
+  /// The type of the value pointed to by the iterator.
+  typedef Buffer value_type;
+
+  /// The type of the result of applying operator->() to the iterator.
+  typedef const Buffer* pointer;
+
+  /// The type of the result of applying operator*() to the iterator.
+  typedef const Buffer& reference;
+
+  /// The iterator category.
+  typedef std::forward_iterator_tag iterator_category;
+
+  // Default constructor creates an end iterator.
+  consuming_buffers_iterator()
+    : at_end_(true)
+  {
+  }
+
+  // Construct with a buffer for the first entry and an iterator
+  // range for the remaining entries.
+  consuming_buffers_iterator(bool at_end, const Buffer& first,
+      Buffer_Iterator begin_remainder, Buffer_Iterator end_remainder,
+      std::size_t max_size)
+    : at_end_(max_size > 0 ? at_end : true),
+      first_(buffer(first, max_size)),
+      begin_remainder_(begin_remainder),
+      end_remainder_(end_remainder),
+      offset_(0),
+      max_size_(max_size)
+  {
+  }
+
+  // Dereference an iterator.
+  const Buffer& operator*() const
+  {
+    return dereference();
+  }
+
+  // Dereference an iterator.
+  const Buffer* operator->() const
+  {
+    return &dereference();
+  }
+
+  // Increment operator (prefix).
+  consuming_buffers_iterator& operator++()
+  {
+    increment();
+    return *this;
+  }
+
+  // Increment operator (postfix).
+  consuming_buffers_iterator operator++(int)
+  {
+    consuming_buffers_iterator tmp(*this);
+    ++*this;
+    return tmp;
+  }
+
+  // Test two iterators for equality.
+  friend bool operator==(const consuming_buffers_iterator& a,
+      const consuming_buffers_iterator& b)
+  {
+    return a.equal(b);
+  }
+
+  // Test two iterators for inequality.
+  friend bool operator!=(const consuming_buffers_iterator& a,
+      const consuming_buffers_iterator& b)
+  {
+    return !a.equal(b);
+  }
+
+private:
+  void increment()
+  {
+    if (!at_end_)
+    {
+      if (begin_remainder_ == end_remainder_
+          || offset_ + buffer_size(first_) >= max_size_)
+      {
+        at_end_ = true;
+      }
+      else
+      {
+        offset_ += buffer_size(first_);
+        first_ = buffer(*begin_remainder_++, max_size_ - offset_);
+      }
+    }
+  }
+
+  bool equal(const consuming_buffers_iterator& other) const
+  {
+    if (at_end_ && other.at_end_)
+      return true;
+    return !at_end_ && !other.at_end_
+      && buffer_cast<const void*>(first_)
+        == buffer_cast<const void*>(other.first_)
+      && buffer_size(first_) == buffer_size(other.first_)
+      && begin_remainder_ == other.begin_remainder_
+      && end_remainder_ == other.end_remainder_;
+  }
+
+  const Buffer& dereference() const
+  {
+    return first_;
+  }
+
+  bool at_end_;
+  Buffer first_;
+  Buffer_Iterator begin_remainder_;
+  Buffer_Iterator end_remainder_;
+  std::size_t offset_;
+  std::size_t max_size_;
+};
+
+// A proxy for a sub-range in a list of buffers.
+template <typename Buffer, typename Buffers>
+class consuming_buffers
+{
+public:
+  // The type for each element in the list of buffers.
+  typedef Buffer value_type;
+
+  // A forward-only iterator type that may be used to read elements.
+  typedef consuming_buffers_iterator<Buffer, typename Buffers::const_iterator>
+    const_iterator;
+
+  // Construct to represent the entire list of buffers.
+  consuming_buffers(const Buffers& buffers)
+    : buffers_(buffers),
+      at_end_(buffers_.begin() == buffers_.end()),
+      begin_remainder_(buffers_.begin()),
+      max_size_((std::numeric_limits<std::size_t>::max)())
+  {
+    if (!at_end_)
+    {
+      first_ = *buffers_.begin();
+      ++begin_remainder_;
+    }
+  }
+
+  // Copy constructor.
+  consuming_buffers(const consuming_buffers& other)
+    : buffers_(other.buffers_),
+      at_end_(other.at_end_),
+      first_(other.first_),
+      begin_remainder_(buffers_.begin()),
+      max_size_(other.max_size_)
+  {
+    typename Buffers::const_iterator first = other.buffers_.begin();
+    typename Buffers::const_iterator second = other.begin_remainder_;
+    std::advance(begin_remainder_, std::distance(first, second));
+  }
+
+  // Assignment operator.
+  consuming_buffers& operator=(const consuming_buffers& other)
+  {
+    buffers_ = other.buffers_;
+    at_end_ = other.at_end_;
+    first_ = other.first_;
+    begin_remainder_ = buffers_.begin();
+    typename Buffers::const_iterator first = other.buffers_.begin();
+    typename Buffers::const_iterator second = other.begin_remainder_;
+    std::advance(begin_remainder_, std::distance(first, second));
+    max_size_ = other.max_size_;
+    return *this;
+  }
+
+  // Get a forward-only iterator to the first element.
+  const_iterator begin() const
+  {
+    return const_iterator(at_end_, first_,
+        begin_remainder_, buffers_.end(), max_size_);
+  }
+
+  // Get a forward-only iterator for one past the last element.
+  const_iterator end() const
+  {
+    return const_iterator();
+  }
+
+  // Set the maximum size for a single transfer.
+  void prepare(std::size_t max_size)
+  {
+    max_size_ = max_size;
+  }
+
+  // Consume the specified number of bytes from the buffers.
+  void consume(std::size_t size)
+  {
+    // Remove buffers from the start until the specified size is reached.
+    while (size > 0 && !at_end_)
+    {
+      if (buffer_size(first_) <= size)
+      {
+        size -= buffer_size(first_);
+        if (begin_remainder_ == buffers_.end())
+          at_end_ = true;
+        else
+          first_ = *begin_remainder_++;
+      }
+      else
+      {
+        first_ = first_ + size;
+        size = 0;
+      }
+    }
+
+    // Remove any more empty buffers at the start.
+    while (!at_end_ && buffer_size(first_) == 0)
+    {
+      if (begin_remainder_ == buffers_.end())
+        at_end_ = true;
+      else
+        first_ = *begin_remainder_++;
+    }
+  }
+
+private:
+  Buffers buffers_;
+  bool at_end_;
+  Buffer first_;
+  typename Buffers::const_iterator begin_remainder_;
+  std::size_t max_size_;
+};
+
+// Specialisation for null_buffers to ensure that the null_buffers type is
+// always passed through to the underlying read or write operation.
+template <typename Buffer>
+class consuming_buffers<Buffer, asio::null_buffers>
+  : public asio::null_buffers
+{
+public:
+  consuming_buffers(const asio::null_buffers&)
+  {
+    // No-op.
+  }
+
+  void prepare(std::size_t)
+  {
+    // No-op.
+  }
+
+  void consume(std::size_t)
+  {
+    // No-op.
+  }
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_CONSUMING_BUFFERS_HPP
diff --git a/asio-1.10.6/include/asio/detail/dependent_type.hpp b/asio-1.10.6/include/asio/detail/dependent_type.hpp
new file mode 100644
index 0000000..b62a68d
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/dependent_type.hpp
@@ -0,0 +1,33 @@
+//
+// detail/dependent_type.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_DEPENDENT_TYPE_HPP
+#define ASIO_DETAIL_DEPENDENT_TYPE_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename DependsOn, typename T>
+struct dependent_type
+{
+  typedef T type;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_DEPENDENT_TYPE_HPP
diff --git a/asio-1.10.6/include/asio/detail/event.hpp b/asio-1.10.6/include/asio/detail/event.hpp
new file mode 100644
index 0000000..9800e0f
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/event.hpp
@@ -0,0 +1,35 @@
+//
+// detail/event.hpp
+// ~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_EVENT_HPP
+#define ASIO_DETAIL_EVENT_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if   defined(ASIO_HAS_PTHREADS)
+# include "asio/detail/posix_event.hpp"
+#else
+# include "asio/detail/std_event.hpp"
+#endif
+
+namespace asio {
+namespace detail {
+
+#if   defined(ASIO_HAS_PTHREADS)
+typedef posix_event event;
+#else
+typedef std_event event;
+#endif
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_EVENT_HPP
diff --git a/asio-1.10.6/include/asio/detail/fd_set_adapter.hpp b/asio-1.10.6/include/asio/detail/fd_set_adapter.hpp
new file mode 100644
index 0000000..3033f43
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/fd_set_adapter.hpp
@@ -0,0 +1,30 @@
+//
+// detail/fd_set_adapter.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_FD_SET_ADAPTER_HPP
+#define ASIO_DETAIL_FD_SET_ADAPTER_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include "asio/detail/posix_fd_set_adapter.hpp"
+#include "asio/detail/win_fd_set_adapter.hpp"
+
+namespace asio {
+namespace detail {
+
+typedef posix_fd_set_adapter fd_set_adapter;
+
+} // namespace detail
+} // namespace asio
+
+
+#endif // ASIO_DETAIL_FD_SET_ADAPTER_HPP
diff --git a/asio-1.10.6/include/asio/detail/fenced_block.hpp b/asio-1.10.6/include/asio/detail/fenced_block.hpp
new file mode 100644
index 0000000..5b5b824
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/fenced_block.hpp
@@ -0,0 +1,59 @@
+//
+// detail/fenced_block.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_FENCED_BLOCK_HPP
+#define ASIO_DETAIL_FENCED_BLOCK_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if !defined(ASIO_HAS_THREADS)    || defined(ASIO_DISABLE_FENCED_BLOCK)
+# include "asio/detail/null_fenced_block.hpp"
+#elif defined(__MACH__) && defined(__APPLE__)
+# include "asio/detail/macos_fenced_block.hpp"
+#elif defined(__sun)
+# include "asio/detail/solaris_fenced_block.hpp"
+#elif defined(__GNUC__) && defined(__arm__)    && !defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
+# include "asio/detail/gcc_arm_fenced_block.hpp"
+#elif defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
+# include "asio/detail/gcc_hppa_fenced_block.hpp"
+#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+# include "asio/detail/gcc_x86_fenced_block.hpp"
+#elif defined(__GNUC__)    && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4))    && !defined(__INTEL_COMPILER) && !defined(__ICL)    && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
+# include "asio/detail/gcc_sync_fenced_block.hpp"
+#else
+# include "asio/detail/null_fenced_block.hpp"
+#endif
+
+namespace asio {
+namespace detail {
+
+#if !defined(ASIO_HAS_THREADS)    || defined(ASIO_DISABLE_FENCED_BLOCK)
+typedef null_fenced_block fenced_block;
+#elif defined(__MACH__) && defined(__APPLE__)
+typedef macos_fenced_block fenced_block;
+#elif defined(__sun)
+typedef solaris_fenced_block fenced_block;
+#elif defined(__GNUC__) && defined(__arm__)    && !defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
+typedef gcc_arm_fenced_block fenced_block;
+#elif defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
+typedef gcc_hppa_fenced_block fenced_block;
+#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+typedef gcc_x86_fenced_block fenced_block;
+#elif defined(__GNUC__)    && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4))    && !defined(__INTEL_COMPILER) && !defined(__ICL)    && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
+typedef gcc_sync_fenced_block fenced_block;
+#else
+typedef null_fenced_block fenced_block;
+#endif
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_FENCED_BLOCK_HPP
diff --git a/asio-1.10.6/include/asio/detail/handler_alloc_helpers.hpp b/asio-1.10.6/include/asio/detail/handler_alloc_helpers.hpp
new file mode 100644
index 0000000..9386fdf
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/handler_alloc_helpers.hpp
@@ -0,0 +1,55 @@
+//
+// detail/handler_alloc_helpers.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP
+#define ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/handler_alloc_hook.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+// Calls to asio_handler_allocate and asio_handler_deallocate must be made from
+// a namespace that does not contain any overloads of these functions. The
+// asio_handler_alloc_helpers namespace is defined here for that purpose.
+namespace asio_handler_alloc_helpers {
+
+template <typename Handler>
+inline void* allocate(std::size_t s, Handler& h)
+{
+#if !defined(ASIO_HAS_HANDLER_HOOKS)
+  return ::operator new(s);
+#else
+  using asio::asio_handler_allocate;
+  return asio_handler_allocate(s, asio::detail::addressof(h));
+#endif
+}
+
+template <typename Handler>
+inline void deallocate(void* p, std::size_t s, Handler& h)
+{
+#if !defined(ASIO_HAS_HANDLER_HOOKS)
+  ::operator delete(p);
+#else
+  using asio::asio_handler_deallocate;
+  asio_handler_deallocate(p, s, asio::detail::addressof(h));
+#endif
+}
+
+} // namespace asio_handler_alloc_helpers
+
+#define ASIO_DEFINE_HANDLER_PTR(op)    struct ptr    {      Handler* h;      void* v;      op* p;      ~ptr()      {        reset();      }      void reset()      {        if (p)        {          p->~op();          p = 0;        }        if (v)        {          asio_handler_alloc_helpers::deallocate(v, sizeof(op), *h);          v = 0;        }      }    }    /**/
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP
diff --git a/asio-1.10.6/include/asio/detail/handler_cont_helpers.hpp b/asio-1.10.6/include/asio/detail/handler_cont_helpers.hpp
new file mode 100644
index 0000000..319c0e2
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/handler_cont_helpers.hpp
@@ -0,0 +1,42 @@
+//
+// detail/handler_cont_helpers.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP
+#define ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/handler_continuation_hook.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+// Calls to asio_handler_is_continuation must be made from a namespace that
+// does not contain overloads of this function. This namespace is defined here
+// for that purpose.
+namespace asio_handler_cont_helpers {
+
+template <typename Context>
+inline bool is_continuation(Context& context)
+{
+#if !defined(ASIO_HAS_HANDLER_HOOKS)
+  return false;
+#else
+  using asio::asio_handler_is_continuation;
+  return asio_handler_is_continuation(
+      asio::detail::addressof(context));
+#endif
+}
+
+} // namespace asio_handler_cont_helpers
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP
diff --git a/asio-1.10.6/include/asio/detail/handler_invoke_helpers.hpp b/asio-1.10.6/include/asio/detail/handler_invoke_helpers.hpp
new file mode 100644
index 0000000..f1ec530
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/handler_invoke_helpers.hpp
@@ -0,0 +1,54 @@
+//
+// detail/handler_invoke_helpers.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
+#define ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/handler_invoke_hook.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+// Calls to asio_handler_invoke must be made from a namespace that does not
+// contain overloads of this function. The asio_handler_invoke_helpers
+// namespace is defined here for that purpose.
+namespace asio_handler_invoke_helpers {
+
+template <typename Function, typename Context>
+inline void invoke(Function& function, Context& context)
+{
+#if !defined(ASIO_HAS_HANDLER_HOOKS)
+  Function tmp(function);
+  tmp();
+#else
+  using asio::asio_handler_invoke;
+  asio_handler_invoke(function, asio::detail::addressof(context));
+#endif
+}
+
+template <typename Function, typename Context>
+inline void invoke(const Function& function, Context& context)
+{
+#if !defined(ASIO_HAS_HANDLER_HOOKS)
+  Function tmp(function);
+  tmp();
+#else
+  using asio::asio_handler_invoke;
+  asio_handler_invoke(function, asio::detail::addressof(context));
+#endif
+}
+
+} // namespace asio_handler_invoke_helpers
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
diff --git a/asio-1.10.6/include/asio/detail/handler_tracking.hpp b/asio-1.10.6/include/asio/detail/handler_tracking.hpp
new file mode 100644
index 0000000..4d1fcb0
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/handler_tracking.hpp
@@ -0,0 +1,146 @@
+//
+// detail/handler_tracking.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_HANDLER_TRACKING_HPP
+#define ASIO_DETAIL_HANDLER_TRACKING_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_ENABLE_HANDLER_TRACKING)
+# include "asio/error_code.hpp"
+# include "asio/detail/cstdint.hpp"
+# include "asio/detail/static_mutex.hpp"
+# include "asio/detail/tss_ptr.hpp"
+#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+#if defined(ASIO_ENABLE_HANDLER_TRACKING)
+
+class handler_tracking
+{
+public:
+  class completion;
+
+  // Base class for objects containing tracked handlers.
+  class tracked_handler
+  {
+  private:
+    // Only the handler_tracking class will have access to the id.
+    friend class handler_tracking;
+    friend class completion;
+    uint64_t id_;
+
+  protected:
+    // Constructor initialises with no id.
+    tracked_handler() : id_(0) {}
+
+    // Prevent deletion through this type.
+    ~tracked_handler() {}
+  };
+
+  // Initialise the tracking system.
+  ASIO_DECL static void init();
+
+  // Record the creation of a tracked handler.
+  ASIO_DECL static void creation(tracked_handler* h,
+      const char* object_type, void* object, const char* op_name);
+
+  class completion
+  {
+  public:
+    // Constructor records that handler is to be invoked with no arguments.
+    ASIO_DECL explicit completion(tracked_handler* h);
+
+    // Destructor records only when an exception is thrown from the handler, or
+    // if the memory is being freed without the handler having been invoked.
+    ASIO_DECL ~completion();
+
+    // Records that handler is to be invoked with no arguments.
+    ASIO_DECL void invocation_begin();
+
+    // Records that handler is to be invoked with one arguments.
+    ASIO_DECL void invocation_begin(const asio::error_code& ec);
+
+    // Constructor records that handler is to be invoked with two arguments.
+    ASIO_DECL void invocation_begin(
+        const asio::error_code& ec, std::size_t bytes_transferred);
+
+    // Constructor records that handler is to be invoked with two arguments.
+    ASIO_DECL void invocation_begin(
+        const asio::error_code& ec, int signal_number);
+
+    // Constructor records that handler is to be invoked with two arguments.
+    ASIO_DECL void invocation_begin(
+        const asio::error_code& ec, const char* arg);
+
+    // Record that handler invocation has ended.
+    ASIO_DECL void invocation_end();
+
+  private:
+    friend class handler_tracking;
+    uint64_t id_;
+    bool invoked_;
+    completion* next_;
+  };
+
+  // Record an operation that affects pending handlers.
+  ASIO_DECL static void operation(const char* object_type,
+      void* object, const char* op_name);
+
+  // Write a line of output.
+  ASIO_DECL static void write_line(const char* format, ...);
+
+private:
+  struct tracking_state;
+  ASIO_DECL static tracking_state* get_state();
+};
+
+# define ASIO_INHERIT_TRACKED_HANDLER    : public asio::detail::handler_tracking::tracked_handler
+
+# define ASIO_ALSO_INHERIT_TRACKED_HANDLER    , public asio::detail::handler_tracking::tracked_handler
+
+# define ASIO_HANDLER_TRACKING_INIT    asio::detail::handler_tracking::init()
+
+# define ASIO_HANDLER_CREATION(args)    asio::detail::handler_tracking::creation args
+
+# define ASIO_HANDLER_COMPLETION(args)    asio::detail::handler_tracking::completion tracked_completion args
+
+# define ASIO_HANDLER_INVOCATION_BEGIN(args)    tracked_completion.invocation_begin args
+
+# define ASIO_HANDLER_INVOCATION_END    tracked_completion.invocation_end()
+
+# define ASIO_HANDLER_OPERATION(args)    asio::detail::handler_tracking::operation args
+
+#else // defined(ASIO_ENABLE_HANDLER_TRACKING)
+
+# define ASIO_INHERIT_TRACKED_HANDLER
+# define ASIO_ALSO_INHERIT_TRACKED_HANDLER
+# define ASIO_HANDLER_TRACKING_INIT (void)0
+# define ASIO_HANDLER_CREATION(args) (void)0
+# define ASIO_HANDLER_COMPLETION(args) (void)0
+# define ASIO_HANDLER_INVOCATION_BEGIN(args) (void)0
+# define ASIO_HANDLER_INVOCATION_END (void)0
+# define ASIO_HANDLER_OPERATION(args) (void)0
+
+#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/handler_tracking.ipp"
+
+#endif // ASIO_DETAIL_HANDLER_TRACKING_HPP
diff --git a/asio-1.10.6/include/asio/detail/handler_type_requirements.hpp b/asio-1.10.6/include/asio/detail/handler_type_requirements.hpp
new file mode 100644
index 0000000..567a6f4
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/handler_type_requirements.hpp
@@ -0,0 +1,168 @@
+//
+// detail/handler_type_requirements.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP
+#define ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP
+
+
+#include "asio/detail/config.hpp"
+
+// Older versions of gcc have difficulty compiling the sizeof expressions where
+// we test the handler type requirements. We'll disable checking of handler type
+// requirements for those compilers, but otherwise enable it by default.
+#if !defined(ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
+# if !defined(__GNUC__) || (__GNUC__ >= 4)
+#  define ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS 1
+# endif // !defined(__GNUC__) || (__GNUC__ >= 4)
+#endif // !defined(ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
+
+// With C++0x we can use a combination of enhanced SFINAE and static_assert to
+// generate better template error messages. As this technique is not yet widely
+// portable, we'll only enable it for tested compilers.
+#if !defined(ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
+# if defined(__GNUC__)
+#  if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
+#   if defined(__GXX_EXPERIMENTAL_CXX0X__)
+#    define ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT 1
+#   endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
+#  endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
+# endif // defined(__GNUC__)
+#  if __has_feature(__cxx_static_assert__)
+#   define ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT 1
+#  endif // __has_feature(cxx_static_assert)
+#endif // !defined(ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
+
+#if defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
+# include "asio/handler_type.hpp"
+#endif // defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
+
+// Newer gcc needs special treatment to suppress unused typedef warnings.
+#if defined(__GNUC__)
+# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
+#  define ASIO_UNUSED_TYPEDEF __attribute__((__unused__))
+# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
+#endif // defined(__GNUC__)
+#if !defined(ASIO_UNUSED_TYPEDEF)
+# define ASIO_UNUSED_TYPEDEF
+#endif // !defined(ASIO_UNUSED_TYPEDEF)
+
+namespace asio {
+namespace detail {
+
+#if defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
+
+# if defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
+
+template <typename Handler>
+auto zero_arg_handler_test(Handler h, void*)
+  -> decltype(
+    sizeof(Handler(static_cast<const Handler&>(h))),
+    ((h)()),
+    char(0));
+
+template <typename Handler>
+char (&zero_arg_handler_test(Handler, ...))[2];
+
+template <typename Handler, typename Arg1>
+auto one_arg_handler_test(Handler h, Arg1* a1)
+  -> decltype(
+    sizeof(Handler(static_cast<const Handler&>(h))),
+    ((h)(*a1)),
+    char(0));
+
+template <typename Handler>
+char (&one_arg_handler_test(Handler h, ...))[2];
+
+template <typename Handler, typename Arg1, typename Arg2>
+auto two_arg_handler_test(Handler h, Arg1* a1, Arg2* a2)
+  -> decltype(
+    sizeof(Handler(static_cast<const Handler&>(h))),
+    ((h)(*a1, *a2)),
+    char(0));
+
+template <typename Handler>
+char (&two_arg_handler_test(Handler, ...))[2];
+
+#  define ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(expr, msg)       static_assert(expr, msg);
+
+# else // defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
+
+#  define ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(expr, msg)
+
+# endif // defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
+
+template <typename T> T& lvref();
+template <typename T> T& lvref(T);
+template <typename T> const T& clvref();
+template <typename T> const T& clvref(T);
+template <typename T> char argbyv(T);
+
+template <int>
+struct handler_type_requirements
+{
+};
+
+#define ASIO_COMPLETION_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void()) asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::zero_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(), 0)) == 1,        "CompletionHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_READ_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code, std::size_t))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::two_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0),            static_cast<const std::size_t*>(0))) == 1,        "ReadHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>(),              asio::detail::lvref<const std::size_t>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+
+#define ASIO_WRITE_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code, std::size_t))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::two_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0),            static_cast<const std::size_t*>(0))) == 1,        "WriteHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>(),              asio::detail::lvref<const std::size_t>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_ACCEPT_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::one_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0))) == 1,        "AcceptHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_CONNECT_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::one_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0))) == 1,        "ConnectHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_COMPOSED_CONNECT_HANDLER_CHECK(      handler_type, handler, iter_type)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code, iter_type))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::two_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0),            static_cast<const iter_type*>(0))) == 1,        "ComposedConnectHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>(),              asio::detail::lvref<const iter_type>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_RESOLVE_HANDLER_CHECK(      handler_type, handler, iter_type)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code, iter_type))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::two_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0),            static_cast<const iter_type*>(0))) == 1,        "ResolveHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>(),              asio::detail::lvref<const iter_type>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_WAIT_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::one_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0))) == 1,        "WaitHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_SIGNAL_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code, int))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::two_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0),            static_cast<const int*>(0))) == 1,        "SignalHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>(),              asio::detail::lvref<const int>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_HANDSHAKE_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::one_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0))) == 1,        "HandshakeHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_BUFFERED_HANDSHAKE_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code, std::size_t))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::two_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0),            static_cast<const std::size_t*>(0))) == 1,        "BufferedHandshakeHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(            asio::detail::lvref<const asio::error_code>(),            asio::detail::lvref<const std::size_t>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#define ASIO_SHUTDOWN_HANDLER_CHECK(      handler_type, handler)       typedef ASIO_HANDLER_TYPE(handler_type,        void(asio::error_code))      asio_true_handler_type;       ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(        sizeof(asio::detail::one_arg_handler_test(            asio::detail::clvref<              asio_true_handler_type>(),            static_cast<const asio::error_code*>(0))) == 1,        "ShutdownHandler type requirements not met")       typedef asio::detail::handler_type_requirements<        sizeof(          asio::detail::argbyv(            asio::detail::clvref<              asio_true_handler_type>())) +        sizeof(          asio::detail::lvref<            asio_true_handler_type>()(              asio::detail::lvref<const asio::error_code>()),          char(0))> ASIO_UNUSED_TYPEDEF
+
+#else // !defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
+
+#define ASIO_COMPLETION_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_READ_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_WRITE_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_ACCEPT_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_CONNECT_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_COMPOSED_CONNECT_HANDLER_CHECK(      handler_type, handler, iter_type)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_RESOLVE_HANDLER_CHECK(      handler_type, handler, iter_type)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_WAIT_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_SIGNAL_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_HANDSHAKE_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_BUFFERED_HANDSHAKE_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#define ASIO_SHUTDOWN_HANDLER_CHECK(      handler_type, handler)    typedef int ASIO_UNUSED_TYPEDEF
+
+#endif // !defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP
diff --git a/asio-1.10.6/include/asio/detail/hash_map.hpp b/asio-1.10.6/include/asio/detail/hash_map.hpp
new file mode 100644
index 0000000..0a99941
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/hash_map.hpp
@@ -0,0 +1,319 @@
+//
+// detail/hash_map.hpp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_HASH_MAP_HPP
+#define ASIO_DETAIL_HASH_MAP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <list>
+#include <utility>
+#include "asio/detail/assert.hpp"
+#include "asio/detail/noncopyable.hpp"
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+inline std::size_t calculate_hash_value(int i)
+{
+  return static_cast<std::size_t>(i);
+}
+
+inline std::size_t calculate_hash_value(void* p)
+{
+  return reinterpret_cast<std::size_t>(p)
+    + (reinterpret_cast<std::size_t>(p) >> 3);
+}
+
+
+// Note: assumes K and V are POD types.
+template <typename K, typename V>
+class hash_map
+  : private noncopyable
+{
+public:
+  // The type of a value in the map.
+  typedef std::pair<K, V> value_type;
+
+  // The type of a non-const iterator over the hash map.
+  typedef typename std::list<value_type>::iterator iterator;
+
+  // The type of a const iterator over the hash map.
+  typedef typename std::list<value_type>::const_iterator const_iterator;
+
+  // Constructor.
+  hash_map()
+    : size_(0),
+      buckets_(0),
+      num_buckets_(0)
+  {
+  }
+
+  // Destructor.
+  ~hash_map()
+  {
+    delete[] buckets_;
+  }
+
+  // Get an iterator for the beginning of the map.
+  iterator begin()
+  {
+    return values_.begin();
+  }
+
+  // Get an iterator for the beginning of the map.
+  const_iterator begin() const
+  {
+    return values_.begin();
+  }
+
+  // Get an iterator for the end of the map.
+  iterator end()
+  {
+    return values_.end();
+  }
+
+  // Get an iterator for the end of the map.
+  const_iterator end() const
+  {
+    return values_.end();
+  }
+
+  // Check whether the map is empty.
+  bool empty() const
+  {
+    return values_.empty();
+  }
+
+  // Find an entry in the map.
+  iterator find(const K& k)
+  {
+    if (num_buckets_)
+    {
+      size_t bucket = calculate_hash_value(k) % num_buckets_;
+      iterator it = buckets_[bucket].first;
+      if (it == values_.end())
+        return values_.end();
+      iterator end_it = buckets_[bucket].last;
+      ++end_it;
+      while (it != end_it)
+      {
+        if (it->first == k)
+          return it;
+        ++it;
+      }
+    }
+    return values_.end();
+  }
+
+  // Find an entry in the map.
+  const_iterator find(const K& k) const
+  {
+    if (num_buckets_)
+    {
+      size_t bucket = calculate_hash_value(k) % num_buckets_;
+      const_iterator it = buckets_[bucket].first;
+      if (it == values_.end())
+        return it;
+      const_iterator end_it = buckets_[bucket].last;
+      ++end_it;
+      while (it != end_it)
+      {
+        if (it->first == k)
+          return it;
+        ++it;
+      }
+    }
+    return values_.end();
+  }
+
+  // Insert a new entry into the map.
+  std::pair<iterator, bool> insert(const value_type& v)
+  {
+    if (size_ + 1 >= num_buckets_)
+      rehash(hash_size(size_ + 1));
+    size_t bucket = calculate_hash_value(v.first) % num_buckets_;
+    iterator it = buckets_[bucket].first;
+    if (it == values_.end())
+    {
+      buckets_[bucket].first = buckets_[bucket].last =
+        values_insert(values_.end(), v);
+      ++size_;
+      return std::pair<iterator, bool>(buckets_[bucket].last, true);
+    }
+    iterator end_it = buckets_[bucket].last;
+    ++end_it;
+    while (it != end_it)
+    {
+      if (it->first == v.first)
+        return std::pair<iterator, bool>(it, false);
+      ++it;
+    }
+    buckets_[bucket].last = values_insert(end_it, v);
+    ++size_;
+    return std::pair<iterator, bool>(buckets_[bucket].last, true);
+  }
+
+  // Erase an entry from the map.
+  void erase(iterator it)
+  {
+    ASIO_ASSERT(it != values_.end());
+    ASIO_ASSERT(num_buckets_ != 0);
+
+    size_t bucket = calculate_hash_value(it->first) % num_buckets_;
+    bool is_first = (it == buckets_[bucket].first);
+    bool is_last = (it == buckets_[bucket].last);
+    if (is_first && is_last)
+      buckets_[bucket].first = buckets_[bucket].last = values_.end();
+    else if (is_first)
+      ++buckets_[bucket].first;
+    else if (is_last)
+      --buckets_[bucket].last;
+
+    values_erase(it);
+    --size_;
+  }
+
+  // Erase a key from the map.
+  void erase(const K& k)
+  {
+    iterator it = find(k);
+    if (it != values_.end())
+      erase(it);
+  }
+
+  // Remove all entries from the map.
+  void clear()
+  {
+    // Clear the values.
+    values_.clear();
+    size_ = 0;
+
+    // Initialise all buckets to empty.
+    iterator end_it = values_.end();
+    for (size_t i = 0; i < num_buckets_; ++i)
+      buckets_[i].first = buckets_[i].last = end_it;
+  }
+
+private:
+  // Calculate the hash size for the specified number of elements.
+  static std::size_t hash_size(std::size_t num_elems)
+  {
+    static std::size_t sizes[] =
+    {
+#if defined(ASIO_HASH_MAP_BUCKETS)
+      ASIO_HASH_MAP_BUCKETS
+#else // ASIO_HASH_MAP_BUCKETS
+      3, 13, 23, 53, 97, 193, 389, 769, 1543, 3079, 6151, 12289, 24593,
+      49157, 98317, 196613, 393241, 786433, 1572869, 3145739, 6291469,
+      12582917, 25165843
+#endif // ASIO_HASH_MAP_BUCKETS
+    };
+    const std::size_t nth_size = sizeof(sizes) / sizeof(std::size_t) - 1;
+    for (std::size_t i = 0; i < nth_size; ++i)
+      if (num_elems < sizes[i])
+        return sizes[i];
+    return sizes[nth_size];
+  }
+
+  // Re-initialise the hash from the values already contained in the list.
+  void rehash(std::size_t num_buckets)
+  {
+    if (num_buckets == num_buckets_)
+      return;
+    num_buckets_ = num_buckets;
+    ASIO_ASSERT(num_buckets_ != 0);
+
+    iterator end_iter = values_.end();
+
+    // Update number of buckets and initialise all buckets to empty.
+    bucket_type* tmp = new bucket_type[num_buckets_];
+    delete[] buckets_;
+    buckets_ = tmp;
+    for (std::size_t i = 0; i < num_buckets_; ++i)
+      buckets_[i].first = buckets_[i].last = end_iter;
+
+    // Put all values back into the hash.
+    iterator iter = values_.begin();
+    while (iter != end_iter)
+    {
+      std::size_t bucket = calculate_hash_value(iter->first) % num_buckets_;
+      if (buckets_[bucket].last == end_iter)
+      {
+        buckets_[bucket].first = buckets_[bucket].last = iter++;
+      }
+      else if (++buckets_[bucket].last == iter)
+      {
+        ++iter;
+      }
+      else
+      {
+        values_.splice(buckets_[bucket].last, values_, iter++);
+        --buckets_[bucket].last;
+      }
+    }
+  }
+
+  // Insert an element into the values list by splicing from the spares list,
+  // if a spare is available, and otherwise by inserting a new element.
+  iterator values_insert(iterator it, const value_type& v)
+  {
+    if (spares_.empty())
+    {
+      return values_.insert(it, v);
+    }
+    else
+    {
+      spares_.front() = v;
+      values_.splice(it, spares_, spares_.begin());
+      return --it;
+    }
+  }
+
+  // Erase an element from the values list by splicing it to the spares list.
+  void values_erase(iterator it)
+  {
+    *it = value_type();
+    spares_.splice(spares_.begin(), values_, it);
+  }
+
+  // The number of elements in the hash.
+  std::size_t size_;
+
+  // The list of all values in the hash map.
+  std::list<value_type> values_;
+
+  // The list of spare nodes waiting to be recycled. Assumes that POD types only
+  // are stored in the hash map.
+  std::list<value_type> spares_;
+
+  // The type for a bucket in the hash table.
+  struct bucket_type
+  {
+    iterator first;
+    iterator last;
+  };
+
+  // The buckets in the hash.
+  bucket_type* buckets_;
+
+  // The number of buckets in the hash.
+  std::size_t num_buckets_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_HASH_MAP_HPP
diff --git a/asio-1.10.6/include/asio/detail/impl/buffer_sequence_adapter.ipp b/asio-1.10.6/include/asio/detail/impl/buffer_sequence_adapter.ipp
new file mode 100644
index 0000000..41ff7f3
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/buffer_sequence_adapter.ipp
@@ -0,0 +1,18 @@
+//
+// detail/impl/buffer_sequence_adapter.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
+#define ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#endif // ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/handler_tracking.ipp b/asio-1.10.6/include/asio/detail/impl/handler_tracking.ipp
new file mode 100644
index 0000000..7cb5ca6
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/handler_tracking.ipp
@@ -0,0 +1,239 @@
+//
+// detail/impl/handler_tracking.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
+#define ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_ENABLE_HANDLER_TRACKING)
+
+#include <cstdarg>
+#include <cstdio>
+#include "asio/detail/handler_tracking.hpp"
+
+#  include <chrono>
+# include "asio/detail/chrono_time_traits.hpp"
+# include "asio/wait_traits.hpp"
+
+# include <unistd.h>
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+struct handler_tracking_timestamp
+{
+  uint64_t seconds;
+  uint64_t microseconds;
+
+  handler_tracking_timestamp()
+  {
+    typedef chrono_time_traits<std::chrono::system_clock,
+        asio::wait_traits<std::chrono::system_clock> > traits_helper;
+    traits_helper::posix_time_duration now(
+        std::chrono::system_clock::now().time_since_epoch());
+    seconds = static_cast<uint64_t>(now.total_seconds());
+    microseconds = static_cast<uint64_t>(now.total_microseconds() % 1000000);
+  }
+};
+
+struct handler_tracking::tracking_state
+{
+  static_mutex mutex_;
+  uint64_t next_id_;
+  tss_ptr<completion>* current_completion_;
+};
+
+handler_tracking::tracking_state* handler_tracking::get_state()
+{
+  static tracking_state state = { ASIO_STATIC_MUTEX_INIT, 1, 0 };
+  return &state;
+}
+
+void handler_tracking::init()
+{
+  static tracking_state* state = get_state();
+
+  state->mutex_.init();
+
+  static_mutex::scoped_lock lock(state->mutex_);
+  if (state->current_completion_ == 0)
+    state->current_completion_ = new tss_ptr<completion>;
+}
+
+void handler_tracking::creation(handler_tracking::tracked_handler* h,
+    const char* object_type, void* object, const char* op_name)
+{
+  static tracking_state* state = get_state();
+
+  static_mutex::scoped_lock lock(state->mutex_);
+  h->id_ = state->next_id_++;
+  lock.unlock();
+
+  handler_tracking_timestamp timestamp;
+
+  uint64_t current_id = 0;
+  if (completion* current_completion = *state->current_completion_)
+    current_id = current_completion->id_;
+
+  write_line(
+      "@asio|%llu.%06llu|%llu*%llu|%.20s@%p.%.50s\n",
+      timestamp.seconds, timestamp.microseconds,
+      current_id, h->id_, object_type, object, op_name);
+}
+
+handler_tracking::completion::completion(handler_tracking::tracked_handler* h)
+  : id_(h->id_),
+    invoked_(false),
+    next_(*get_state()->current_completion_)
+{
+  *get_state()->current_completion_ = this;
+}
+
+handler_tracking::completion::~completion()
+{
+  if (id_)
+  {
+    handler_tracking_timestamp timestamp;
+
+    write_line(
+        "@asio|%llu.%06llu|%c%llu|\n",
+        timestamp.seconds, timestamp.microseconds,
+        invoked_ ? '!' : '~', id_);
+  }
+
+  *get_state()->current_completion_ = next_;
+}
+
+void handler_tracking::completion::invocation_begin()
+{
+  handler_tracking_timestamp timestamp;
+
+  write_line(
+      "@asio|%llu.%06llu|>%llu|\n",
+      timestamp.seconds, timestamp.microseconds, id_);
+
+  invoked_ = true;
+}
+
+void handler_tracking::completion::invocation_begin(
+    const asio::error_code& ec)
+{
+  handler_tracking_timestamp timestamp;
+
+  write_line(
+      "@asio|%llu.%06llu|>%llu|ec=%.20s:%d\n",
+      timestamp.seconds, timestamp.microseconds,
+      id_, ec.category().name(), ec.value());
+
+  invoked_ = true;
+}
+
+void handler_tracking::completion::invocation_begin(
+    const asio::error_code& ec, std::size_t bytes_transferred)
+{
+  handler_tracking_timestamp timestamp;
+
+  write_line(
+      "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,bytes_transferred=%llu\n",
+      timestamp.seconds, timestamp.microseconds,
+      id_, ec.category().name(), ec.value(),
+      static_cast<uint64_t>(bytes_transferred));
+
+  invoked_ = true;
+}
+
+void handler_tracking::completion::invocation_begin(
+    const asio::error_code& ec, int signal_number)
+{
+  handler_tracking_timestamp timestamp;
+
+  write_line(
+      "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,signal_number=%d\n",
+      timestamp.seconds, timestamp.microseconds,
+      id_, ec.category().name(), ec.value(), signal_number);
+
+  invoked_ = true;
+}
+
+void handler_tracking::completion::invocation_begin(
+    const asio::error_code& ec, const char* arg)
+{
+  handler_tracking_timestamp timestamp;
+
+  write_line(
+      "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,%.50s\n",
+      timestamp.seconds, timestamp.microseconds,
+      id_, ec.category().name(), ec.value(), arg);
+
+  invoked_ = true;
+}
+
+void handler_tracking::completion::invocation_end()
+{
+  if (id_)
+  {
+    handler_tracking_timestamp timestamp;
+
+    write_line(
+        "@asio|%llu.%06llu|<%llu|\n",
+        timestamp.seconds, timestamp.microseconds, id_);
+
+    id_ = 0;
+  }
+}
+
+void handler_tracking::operation(const char* object_type,
+    void* object, const char* op_name)
+{
+  static tracking_state* state = get_state();
+
+  handler_tracking_timestamp timestamp;
+
+  unsigned long long current_id = 0;
+  if (completion* current_completion = *state->current_completion_)
+    current_id = current_completion->id_;
+
+  write_line(
+      "@asio|%llu.%06llu|%llu|%.20s@%p.%.50s\n",
+      timestamp.seconds, timestamp.microseconds,
+      current_id, object_type, object, op_name);
+}
+
+void handler_tracking::write_line(const char* format, ...)
+{
+  using namespace std; // For sprintf (or equivalent).
+
+  va_list args;
+  va_start(args, format);
+
+  char line[256] = "";
+#if defined(ASIO_HAS_SECURE_RTL)
+  int length = vsprintf_s(line, sizeof(line), format, args);
+#else // defined(ASIO_HAS_SECURE_RTL)
+  int length = vsprintf(line, format, args);
+#endif // defined(ASIO_HAS_SECURE_RTL)
+
+  va_end(args);
+
+  ::write(STDERR_FILENO, line, length);
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
+
+#endif // ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/pipe_select_interrupter.ipp b/asio-1.10.6/include/asio/detail/impl/pipe_select_interrupter.ipp
new file mode 100644
index 0000000..224de24
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/pipe_select_interrupter.ipp
@@ -0,0 +1,111 @@
+//
+// detail/impl/pipe_select_interrupter.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP
+#define ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "asio/detail/pipe_select_interrupter.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+pipe_select_interrupter::pipe_select_interrupter()
+{
+  open_descriptors();
+}
+
+void pipe_select_interrupter::open_descriptors()
+{
+  int pipe_fds[2];
+  if (pipe(pipe_fds) == 0)
+  {
+    read_descriptor_ = pipe_fds[0];
+    ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
+    write_descriptor_ = pipe_fds[1];
+    ::fcntl(write_descriptor_, F_SETFL, O_NONBLOCK);
+
+#if defined(FD_CLOEXEC)
+    ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
+    ::fcntl(write_descriptor_, F_SETFD, FD_CLOEXEC);
+#endif // defined(FD_CLOEXEC)
+  }
+  else
+  {
+    asio::error_code ec(errno,
+        asio::error::get_system_category());
+    asio::detail::throw_error(ec, "pipe_select_interrupter");
+  }
+}
+
+pipe_select_interrupter::~pipe_select_interrupter()
+{
+  close_descriptors();
+}
+
+void pipe_select_interrupter::close_descriptors()
+{
+  if (read_descriptor_ != -1)
+    ::close(read_descriptor_);
+  if (write_descriptor_ != -1)
+    ::close(write_descriptor_);
+}
+
+void pipe_select_interrupter::recreate()
+{
+  close_descriptors();
+
+  write_descriptor_ = -1;
+  read_descriptor_ = -1;
+
+  open_descriptors();
+}
+
+void pipe_select_interrupter::interrupt()
+{
+  char byte = 0;
+  signed_size_type result = ::write(write_descriptor_, &byte, 1);
+  (void)result;
+}
+
+bool pipe_select_interrupter::reset()
+{
+  for (;;)
+  {
+    char data[1024];
+    signed_size_type bytes_read = ::read(read_descriptor_, data, sizeof(data));
+    if (bytes_read < 0 && errno == EINTR)
+      continue;
+    bool was_interrupted = (bytes_read > 0);
+    while (bytes_read == sizeof(data))
+      bytes_read = ::read(read_descriptor_, data, sizeof(data));
+    return was_interrupted;
+  }
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+
+#endif // ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/posix_event.ipp b/asio-1.10.6/include/asio/detail/impl/posix_event.ipp
new file mode 100644
index 0000000..4ae2a2a
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/posix_event.ipp
@@ -0,0 +1,44 @@
+//
+// detail/impl/posix_event.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
+#define ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include "asio/detail/posix_event.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+posix_event::posix_event()
+  : state_(0)
+{
+  int error = ::pthread_cond_init(&cond_, 0);
+  asio::error_code ec(error,
+      asio::error::get_system_category());
+  asio::detail::throw_error(ec, "event");
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/posix_mutex.ipp b/asio-1.10.6/include/asio/detail/impl/posix_mutex.ipp
new file mode 100644
index 0000000..ffbbe1c
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/posix_mutex.ipp
@@ -0,0 +1,43 @@
+//
+// detail/impl/posix_mutex.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP
+#define ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include "asio/detail/posix_mutex.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+posix_mutex::posix_mutex()
+{
+  int error = ::pthread_mutex_init(&mutex_, 0);
+  asio::error_code ec(error,
+      asio::error::get_system_category());
+  asio::detail::throw_error(ec, "mutex");
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/posix_thread.ipp b/asio-1.10.6/include/asio/detail/impl/posix_thread.ipp
new file mode 100644
index 0000000..fb945c7
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/posix_thread.ipp
@@ -0,0 +1,71 @@
+//
+// detail/impl/posix_thread.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
+#define ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include "asio/detail/posix_thread.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+posix_thread::~posix_thread()
+{
+  if (!joined_)
+    ::pthread_detach(thread_);
+}
+
+void posix_thread::join()
+{
+  if (!joined_)
+  {
+    ::pthread_join(thread_, 0);
+    joined_ = true;
+  }
+}
+
+void posix_thread::start_thread(func_base* arg)
+{
+  int error = ::pthread_create(&thread_, 0,
+        asio_detail_posix_thread_function, arg);
+  if (error != 0)
+  {
+    delete arg;
+    asio::error_code ec(error,
+        asio::error::get_system_category());
+    asio::detail::throw_error(ec, "thread");
+  }
+}
+
+void* asio_detail_posix_thread_function(void* arg)
+{
+  posix_thread::auto_func_base_ptr func = {
+      static_cast<posix_thread::func_base*>(arg) };
+  func.ptr->run();
+  return 0;
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/posix_tss_ptr.ipp b/asio-1.10.6/include/asio/detail/impl/posix_tss_ptr.ipp
new file mode 100644
index 0000000..37e88b9
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/posix_tss_ptr.ipp
@@ -0,0 +1,43 @@
+//
+// detail/impl/posix_tss_ptr.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP
+#define ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include "asio/detail/posix_tss_ptr.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+void posix_tss_ptr_create(pthread_key_t& key)
+{
+  int error = ::pthread_key_create(&key, 0);
+  asio::error_code ec(error,
+      asio::error::get_system_category());
+  asio::detail::throw_error(ec, "tss");
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/reactive_socket_service_base.ipp b/asio-1.10.6/include/asio/detail/impl/reactive_socket_service_base.ipp
new file mode 100644
index 0000000..bc4088a
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/reactive_socket_service_base.ipp
@@ -0,0 +1,261 @@
+//
+// detail/reactive_socket_service_base.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
+#define ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include "asio/detail/reactive_socket_service_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+reactive_socket_service_base::reactive_socket_service_base(
+    asio::io_service& io_service)
+  : reactor_(use_service<reactor>(io_service))
+{
+  reactor_.init_task();
+}
+
+void reactive_socket_service_base::shutdown_service()
+{
+}
+
+void reactive_socket_service_base::construct(
+    reactive_socket_service_base::base_implementation_type& impl)
+{
+  impl.socket_ = invalid_socket;
+  impl.state_ = 0;
+}
+
+void reactive_socket_service_base::base_move_construct(
+    reactive_socket_service_base::base_implementation_type& impl,
+    reactive_socket_service_base::base_implementation_type& other_impl)
+{
+  impl.socket_ = other_impl.socket_;
+  other_impl.socket_ = invalid_socket;
+
+  impl.state_ = other_impl.state_;
+  other_impl.state_ = 0;
+
+  reactor_.move_descriptor(impl.socket_,
+      impl.reactor_data_, other_impl.reactor_data_);
+}
+
+void reactive_socket_service_base::base_move_assign(
+    reactive_socket_service_base::base_implementation_type& impl,
+    reactive_socket_service_base& other_service,
+    reactive_socket_service_base::base_implementation_type& other_impl)
+{
+  destroy(impl);
+
+  impl.socket_ = other_impl.socket_;
+  other_impl.socket_ = invalid_socket;
+
+  impl.state_ = other_impl.state_;
+  other_impl.state_ = 0;
+
+  other_service.reactor_.move_descriptor(impl.socket_,
+      impl.reactor_data_, other_impl.reactor_data_);
+}
+
+void reactive_socket_service_base::destroy(
+    reactive_socket_service_base::base_implementation_type& impl)
+{
+  if (impl.socket_ != invalid_socket)
+  {
+    ASIO_HANDLER_OPERATION(("socket", &impl, "close"));
+
+    reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
+        (impl.state_ & socket_ops::possible_dup) == 0);
+
+    asio::error_code ignored_ec;
+    socket_ops::close(impl.socket_, impl.state_, true, ignored_ec);
+  }
+}
+
+asio::error_code reactive_socket_service_base::close(
+    reactive_socket_service_base::base_implementation_type& impl,
+    asio::error_code& ec)
+{
+  if (is_open(impl))
+  {
+    ASIO_HANDLER_OPERATION(("socket", &impl, "close"));
+
+    reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
+        (impl.state_ & socket_ops::possible_dup) == 0);
+  }
+
+  socket_ops::close(impl.socket_, impl.state_, false, ec);
+
+  // The descriptor is closed by the OS even if close() returns an error.
+  //
+  // (Actually, POSIX says the state of the descriptor is unspecified. On
+  // Linux the descriptor is apparently closed anyway; e.g. see
+  //   http://lkml.org/lkml/2005/9/10/129
+  // We'll just have to assume that other OSes follow the same behaviour. The
+  // known exception is when Windows's closesocket() function fails with
+  // WSAEWOULDBLOCK, but this case is handled inside socket_ops::close().
+  construct(impl);
+
+  return ec;
+}
+
+asio::error_code reactive_socket_service_base::cancel(
+    reactive_socket_service_base::base_implementation_type& impl,
+    asio::error_code& ec)
+{
+  if (!is_open(impl))
+  {
+    ec = asio::error::bad_descriptor;
+    return ec;
+  }
+
+  ASIO_HANDLER_OPERATION(("socket", &impl, "cancel"));
+
+  reactor_.cancel_ops(impl.socket_, impl.reactor_data_);
+  ec = asio::error_code();
+  return ec;
+}
+
+asio::error_code reactive_socket_service_base::do_open(
+    reactive_socket_service_base::base_implementation_type& impl,
+    int af, int type, int protocol, asio::error_code& ec)
+{
+  if (is_open(impl))
+  {
+    ec = asio::error::already_open;
+    return ec;
+  }
+
+  socket_holder sock(socket_ops::socket(af, type, protocol, ec));
+  if (sock.get() == invalid_socket)
+    return ec;
+
+  if (int err = reactor_.register_descriptor(sock.get(), impl.reactor_data_))
+  {
+    ec = asio::error_code(err,
+        asio::error::get_system_category());
+    return ec;
+  }
+
+  impl.socket_ = sock.release();
+  switch (type)
+  {
+  case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
+  case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
+  default: impl.state_ = 0; break;
+  }
+  ec = asio::error_code();
+  return ec;
+}
+
+asio::error_code reactive_socket_service_base::do_assign(
+    reactive_socket_service_base::base_implementation_type& impl, int type,
+    const reactive_socket_service_base::native_handle_type& native_socket,
+    asio::error_code& ec)
+{
+  if (is_open(impl))
+  {
+    ec = asio::error::already_open;
+    return ec;
+  }
+
+  if (int err = reactor_.register_descriptor(
+        native_socket, impl.reactor_data_))
+  {
+    ec = asio::error_code(err,
+        asio::error::get_system_category());
+    return ec;
+  }
+
+  impl.socket_ = native_socket;
+  switch (type)
+  {
+  case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
+  case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
+  default: impl.state_ = 0; break;
+  }
+  impl.state_ |= socket_ops::possible_dup;
+  ec = asio::error_code();
+  return ec;
+}
+
+void reactive_socket_service_base::start_op(
+    reactive_socket_service_base::base_implementation_type& impl,
+    int op_type, reactor_op* op, bool is_continuation,
+    bool is_non_blocking, bool noop)
+{
+  if (!noop)
+  {
+    if ((impl.state_ & socket_ops::non_blocking)
+        || socket_ops::set_internal_non_blocking(
+          impl.socket_, impl.state_, true, op->ec_))
+    {
+      reactor_.start_op(op_type, impl.socket_,
+          impl.reactor_data_, op, is_continuation, is_non_blocking);
+      return;
+    }
+  }
+
+  reactor_.post_immediate_completion(op, is_continuation);
+}
+
+void reactive_socket_service_base::start_accept_op(
+    reactive_socket_service_base::base_implementation_type& impl,
+    reactor_op* op, bool is_continuation, bool peer_is_open)
+{
+  if (!peer_is_open)
+    start_op(impl, reactor::read_op, op, true, is_continuation, false);
+  else
+  {
+    op->ec_ = asio::error::already_open;
+    reactor_.post_immediate_completion(op, is_continuation);
+  }
+}
+
+void reactive_socket_service_base::start_connect_op(
+    reactive_socket_service_base::base_implementation_type& impl,
+    reactor_op* op, bool is_continuation,
+    const socket_addr_type* addr, size_t addrlen)
+{
+  if ((impl.state_ & socket_ops::non_blocking)
+      || socket_ops::set_internal_non_blocking(
+        impl.socket_, impl.state_, true, op->ec_))
+  {
+    if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0)
+    {
+      if (op->ec_ == asio::error::in_progress
+          || op->ec_ == asio::error::would_block)
+      {
+        op->ec_ = asio::error_code();
+        reactor_.start_op(reactor::connect_op, impl.socket_,
+            impl.reactor_data_, op, is_continuation, false);
+        return;
+      }
+    }
+  }
+
+  reactor_.post_immediate_completion(op, is_continuation);
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+       //   && !defined(ASIO_WINDOWS_RUNTIME)
+
+#endif // ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/resolver_service_base.ipp b/asio-1.10.6/include/asio/detail/impl/resolver_service_base.ipp
new file mode 100644
index 0000000..2868a08
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/resolver_service_base.ipp
@@ -0,0 +1,127 @@
+//
+// detail/impl/resolver_service_base.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
+#define ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/resolver_service_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class resolver_service_base::work_io_service_runner
+{
+public:
+  work_io_service_runner(asio::io_service& io_service)
+    : io_service_(io_service) {}
+  void operator()() { io_service_.run(); }
+private:
+  asio::io_service& io_service_;
+};
+
+resolver_service_base::resolver_service_base(
+    asio::io_service& io_service)
+  : io_service_impl_(asio::use_service<io_service_impl>(io_service)),
+    work_io_service_(new asio::io_service),
+    work_io_service_impl_(asio::use_service<
+        io_service_impl>(*work_io_service_)),
+    work_(new asio::io_service::work(*work_io_service_)),
+    work_thread_(0)
+{
+}
+
+resolver_service_base::~resolver_service_base()
+{
+  shutdown_service();
+}
+
+void resolver_service_base::shutdown_service()
+{
+  work_.reset();
+  if (work_io_service_.get())
+  {
+    work_io_service_->stop();
+    if (work_thread_.get())
+    {
+      work_thread_->join();
+      work_thread_.reset();
+    }
+    work_io_service_.reset();
+  }
+}
+
+void resolver_service_base::fork_service(
+    asio::io_service::fork_event fork_ev)
+{
+  if (work_thread_.get())
+  {
+    if (fork_ev == asio::io_service::fork_prepare)
+    {
+      work_io_service_->stop();
+      work_thread_->join();
+    }
+    else
+    {
+      work_io_service_->reset();
+      work_thread_.reset(new asio::detail::thread(
+            work_io_service_runner(*work_io_service_)));
+    }
+  }
+}
+
+void resolver_service_base::construct(
+    resolver_service_base::implementation_type& impl)
+{
+  impl.reset(static_cast<void*>(0), socket_ops::noop_deleter());
+}
+
+void resolver_service_base::destroy(
+    resolver_service_base::implementation_type& impl)
+{
+  ASIO_HANDLER_OPERATION(("resolver", &impl, "cancel"));
+
+  impl.reset();
+}
+
+void resolver_service_base::cancel(
+    resolver_service_base::implementation_type& impl)
+{
+  ASIO_HANDLER_OPERATION(("resolver", &impl, "cancel"));
+
+  impl.reset(static_cast<void*>(0), socket_ops::noop_deleter());
+}
+
+void resolver_service_base::start_resolve_op(operation* op)
+{
+  start_work_thread();
+  io_service_impl_.work_started();
+  work_io_service_impl_.post_immediate_completion(op, false);
+}
+
+void resolver_service_base::start_work_thread()
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+  if (!work_thread_.get())
+  {
+    work_thread_.reset(new asio::detail::thread(
+          work_io_service_runner(*work_io_service_)));
+  }
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/select_reactor.hpp b/asio-1.10.6/include/asio/detail/impl/select_reactor.hpp
new file mode 100644
index 0000000..06b0acf
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/select_reactor.hpp
@@ -0,0 +1,80 @@
+//
+// detail/impl/select_reactor.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP
+#define ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_IOCP)    || (!defined(ASIO_HAS_DEV_POLL)        && !defined(ASIO_HAS_EPOLL)        && !defined(ASIO_HAS_KQUEUE)        && !defined(ASIO_WINDOWS_RUNTIME))
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Time_Traits>
+void select_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
+{
+  do_add_timer_queue(queue);
+}
+
+// Remove a timer queue from the reactor.
+template <typename Time_Traits>
+void select_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
+{
+  do_remove_timer_queue(queue);
+}
+
+template <typename Time_Traits>
+void select_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
+    const typename Time_Traits::time_type& time,
+    typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+
+  if (shutdown_)
+  {
+    io_service_.post_immediate_completion(op, false);
+    return;
+  }
+
+  bool earliest = queue.enqueue_timer(time, timer, op);
+  io_service_.work_started();
+  if (earliest)
+    interrupter_.interrupt();
+}
+
+template <typename Time_Traits>
+std::size_t select_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
+    typename timer_queue<Time_Traits>::per_timer_data& timer,
+    std::size_t max_cancelled)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+  op_queue<operation> ops;
+  std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
+  lock.unlock();
+  io_service_.post_deferred_completions(ops);
+  return n;
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_IOCP)
+       //   || (!defined(ASIO_HAS_DEV_POLL)
+       //       && !defined(ASIO_HAS_EPOLL)
+       //       && !defined(ASIO_HAS_KQUEUE)
+       //       && !defined(ASIO_WINDOWS_RUNTIME))
+
+#endif // ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP
diff --git a/asio-1.10.6/include/asio/detail/impl/select_reactor.ipp b/asio-1.10.6/include/asio/detail/impl/select_reactor.ipp
new file mode 100644
index 0000000..804a31f
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/select_reactor.ipp
@@ -0,0 +1,246 @@
+//
+// detail/impl/select_reactor.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
+#define ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_IOCP)    || (!defined(ASIO_HAS_DEV_POLL)        && !defined(ASIO_HAS_EPOLL)        && !defined(ASIO_HAS_KQUEUE)        && !defined(ASIO_WINDOWS_RUNTIME))
+
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/fd_set_adapter.hpp"
+#include "asio/detail/select_reactor.hpp"
+#include "asio/detail/signal_blocker.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+select_reactor::select_reactor(asio::io_service& io_service)
+  : asio::detail::service_base<select_reactor>(io_service),
+    io_service_(use_service<io_service_impl>(io_service)),
+    mutex_(),
+    interrupter_(),
+    shutdown_(false)
+{
+}
+
+select_reactor::~select_reactor()
+{
+  shutdown_service();
+}
+
+void select_reactor::shutdown_service()
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+  shutdown_ = true;
+  lock.unlock();
+
+
+  op_queue<operation> ops;
+
+  for (int i = 0; i < max_ops; ++i)
+    op_queue_[i].get_all_operations(ops);
+
+  timer_queues_.get_all_timers(ops);
+
+  io_service_.abandon_operations(ops);
+}
+
+void select_reactor::fork_service(asio::io_service::fork_event fork_ev)
+{
+  if (fork_ev == asio::io_service::fork_child)
+    interrupter_.recreate();
+}
+
+void select_reactor::init_task()
+{
+  io_service_.init_task();
+}
+
+int select_reactor::register_descriptor(socket_type,
+    select_reactor::per_descriptor_data&)
+{
+  return 0;
+}
+
+int select_reactor::register_internal_descriptor(
+    int op_type, socket_type descriptor,
+    select_reactor::per_descriptor_data&, reactor_op* op)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+
+  op_queue_[op_type].enqueue_operation(descriptor, op);
+  interrupter_.interrupt();
+
+  return 0;
+}
+
+void select_reactor::move_descriptor(socket_type,
+    select_reactor::per_descriptor_data&,
+    select_reactor::per_descriptor_data&)
+{
+}
+
+void select_reactor::start_op(int op_type, socket_type descriptor,
+    select_reactor::per_descriptor_data&, reactor_op* op,
+    bool is_continuation, bool)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+
+  if (shutdown_)
+  {
+    post_immediate_completion(op, is_continuation);
+    return;
+  }
+
+  bool first = op_queue_[op_type].enqueue_operation(descriptor, op);
+  io_service_.work_started();
+  if (first)
+    interrupter_.interrupt();
+}
+
+void select_reactor::cancel_ops(socket_type descriptor,
+    select_reactor::per_descriptor_data&)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+  cancel_ops_unlocked(descriptor, asio::error::operation_aborted);
+}
+
+void select_reactor::deregister_descriptor(socket_type descriptor,
+    select_reactor::per_descriptor_data&, bool)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+  cancel_ops_unlocked(descriptor, asio::error::operation_aborted);
+}
+
+void select_reactor::deregister_internal_descriptor(
+    socket_type descriptor, select_reactor::per_descriptor_data&)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+  op_queue<operation> ops;
+  for (int i = 0; i < max_ops; ++i)
+    op_queue_[i].cancel_operations(descriptor, ops);
+}
+
+void select_reactor::run(bool block, op_queue<operation>& ops)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+
+
+  // Set up the descriptor sets.
+  for (int i = 0; i < max_select_ops; ++i)
+    fd_sets_[i].reset();
+  fd_sets_[read_op].set(interrupter_.read_descriptor());
+  socket_type max_fd = 0;
+  bool have_work_to_do = !timer_queues_.all_empty();
+  for (int i = 0; i < max_select_ops; ++i)
+  {
+    have_work_to_do = have_work_to_do || !op_queue_[i].empty();
+    fd_sets_[i].set(op_queue_[i], ops);
+    if (fd_sets_[i].max_descriptor() > max_fd)
+      max_fd = fd_sets_[i].max_descriptor();
+  }
+
+
+  // We can return immediately if there's no work to do and the reactor is
+  // not supposed to block.
+  if (!block && !have_work_to_do)
+    return;
+
+  // Determine how long to block while waiting for events.
+  timeval tv_buf = { 0, 0 };
+  timeval* tv = block ? get_timeout(tv_buf) : &tv_buf;
+
+  lock.unlock();
+
+  // Block on the select call until descriptors become ready.
+  asio::error_code ec;
+  int retval = socket_ops::select(static_cast<int>(max_fd + 1),
+      fd_sets_[read_op], fd_sets_[write_op], fd_sets_[except_op], tv, ec);
+
+  // Reset the interrupter.
+  if (retval > 0 && fd_sets_[read_op].is_set(interrupter_.read_descriptor()))
+  {
+    interrupter_.reset();
+    --retval;
+  }
+
+  lock.lock();
+
+  // Dispatch all ready operations.
+  if (retval > 0)
+  {
+
+    // Exception operations must be processed first to ensure that any
+    // out-of-band data is read before normal data.
+    for (int i = max_select_ops - 1; i >= 0; --i)
+      fd_sets_[i].perform(op_queue_[i], ops);
+  }
+  timer_queues_.get_ready_timers(ops);
+}
+
+void select_reactor::interrupt()
+{
+  interrupter_.interrupt();
+}
+
+
+void select_reactor::do_add_timer_queue(timer_queue_base& queue)
+{
+  mutex::scoped_lock lock(mutex_);
+  timer_queues_.insert(&queue);
+}
+
+void select_reactor::do_remove_timer_queue(timer_queue_base& queue)
+{
+  mutex::scoped_lock lock(mutex_);
+  timer_queues_.erase(&queue);
+}
+
+timeval* select_reactor::get_timeout(timeval& tv)
+{
+  // By default we will wait no longer than 5 minutes. This will ensure that
+  // any changes to the system clock are detected after no longer than this.
+  long usec = timer_queues_.wait_duration_usec(5 * 60 * 1000 * 1000);
+  tv.tv_sec = usec / 1000000;
+  tv.tv_usec = usec % 1000000;
+  return &tv;
+}
+
+void select_reactor::cancel_ops_unlocked(socket_type descriptor,
+    const asio::error_code& ec)
+{
+  bool need_interrupt = false;
+  op_queue<operation> ops;
+  for (int i = 0; i < max_ops; ++i)
+    need_interrupt = op_queue_[i].cancel_operations(
+        descriptor, ops, ec) || need_interrupt;
+  io_service_.post_deferred_completions(ops);
+  if (need_interrupt)
+    interrupter_.interrupt();
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_IOCP)
+       //   || (!defined(ASIO_HAS_DEV_POLL)
+       //       && !defined(ASIO_HAS_EPOLL)
+       //       && !defined(ASIO_HAS_KQUEUE))
+       //       && !defined(ASIO_WINDOWS_RUNTIME))
+
+#endif // ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/service_registry.hpp b/asio-1.10.6/include/asio/detail/impl/service_registry.hpp
new file mode 100644
index 0000000..01ff5ef
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/service_registry.hpp
@@ -0,0 +1,85 @@
+//
+// detail/impl/service_registry.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
+#define ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Service, typename Arg>
+service_registry::service_registry(
+    asio::io_service& o, Service*, Arg arg)
+  : owner_(o),
+    first_service_(new Service(o, arg))
+{
+  asio::io_service::service::key key;
+  init_key(key, Service::id);
+  first_service_->key_ = key;
+  first_service_->next_ = 0;
+}
+
+template <typename Service>
+Service& service_registry::first_service()
+{
+  return *static_cast<Service*>(first_service_);
+}
+
+template <typename Service>
+Service& service_registry::use_service()
+{
+  asio::io_service::service::key key;
+  init_key(key, Service::id);
+  factory_type factory = &service_registry::create<Service>;
+  return *static_cast<Service*>(do_use_service(key, factory));
+}
+
+template <typename Service>
+void service_registry::add_service(Service* new_service)
+{
+  asio::io_service::service::key key;
+  init_key(key, Service::id);
+  return do_add_service(key, new_service);
+}
+
+template <typename Service>
+bool service_registry::has_service() const
+{
+  asio::io_service::service::key key;
+  init_key(key, Service::id);
+  return do_has_service(key);
+}
+
+#if !defined(ASIO_NO_TYPEID)
+template <typename Service>
+void service_registry::init_key(asio::io_service::service::key& key,
+    const asio::detail::service_id<Service>& /*id*/)
+{
+  key.type_info_ = &typeid(typeid_wrapper<Service>);
+  key.id_ = 0;
+}
+#endif // !defined(ASIO_NO_TYPEID)
+
+template <typename Service>
+asio::io_service::service* service_registry::create(
+    asio::io_service& owner)
+{
+  return new Service(owner);
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
diff --git a/asio-1.10.6/include/asio/detail/impl/service_registry.ipp b/asio-1.10.6/include/asio/detail/impl/service_registry.ipp
new file mode 100644
index 0000000..281bce7
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/service_registry.ipp
@@ -0,0 +1,185 @@
+//
+// detail/impl/service_registry.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP
+#define ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP
+
+
+#include "asio/detail/config.hpp"
+#include <vector>
+#include "asio/detail/service_registry.hpp"
+#include "asio/detail/throw_exception.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+service_registry::~service_registry()
+{
+  // Shutdown all services. This must be done in a separate loop before the
+  // services are destroyed since the destructors of user-defined handler
+  // objects may try to access other service objects.
+  asio::io_service::service* service = first_service_;
+  while (service)
+  {
+    service->shutdown_service();
+    service = service->next_;
+  }
+
+  // Destroy all services.
+  while (first_service_)
+  {
+    asio::io_service::service* next_service = first_service_->next_;
+    destroy(first_service_);
+    first_service_ = next_service;
+  }
+}
+
+void service_registry::notify_fork(asio::io_service::fork_event fork_ev)
+{
+  // Make a copy of all of the services while holding the lock. We don't want
+  // to hold the lock while calling into each service, as it may try to call
+  // back into this class.
+  std::vector<asio::io_service::service*> services;
+  {
+    asio::detail::mutex::scoped_lock lock(mutex_);
+    asio::io_service::service* service = first_service_;
+    while (service)
+    {
+      services.push_back(service);
+      service = service->next_;
+    }
+  }
+
+  // If processing the fork_prepare event, we want to go in reverse order of
+  // service registration, which happens to be the existing order of the
+  // services in the vector. For the other events we want to go in the other
+  // direction.
+  std::size_t num_services = services.size();
+  if (fork_ev == asio::io_service::fork_prepare)
+    for (std::size_t i = 0; i < num_services; ++i)
+      services[i]->fork_service(fork_ev);
+  else
+    for (std::size_t i = num_services; i > 0; --i)
+      services[i - 1]->fork_service(fork_ev);
+}
+
+void service_registry::init_key(asio::io_service::service::key& key,
+    const asio::io_service::id& id)
+{
+  key.type_info_ = 0;
+  key.id_ = &id;
+}
+
+bool service_registry::keys_match(
+    const asio::io_service::service::key& key1,
+    const asio::io_service::service::key& key2)
+{
+  if (key1.id_ && key2.id_)
+    if (key1.id_ == key2.id_)
+      return true;
+  if (key1.type_info_ && key2.type_info_)
+    if (*key1.type_info_ == *key2.type_info_)
+      return true;
+  return false;
+}
+
+void service_registry::destroy(asio::io_service::service* service)
+{
+  delete service;
+}
+
+asio::io_service::service* service_registry::do_use_service(
+    const asio::io_service::service::key& key,
+    factory_type factory)
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+
+  // First see if there is an existing service object with the given key.
+  asio::io_service::service* service = first_service_;
+  while (service)
+  {
+    if (keys_match(service->key_, key))
+      return service;
+    service = service->next_;
+  }
+
+  // Create a new service object. The service registry's mutex is not locked
+  // at this time to allow for nested calls into this function from the new
+  // service's constructor.
+  lock.unlock();
+  auto_service_ptr new_service = { factory(owner_) };
+  new_service.ptr_->key_ = key;
+  lock.lock();
+
+  // Check that nobody else created another service object of the same type
+  // while the lock was released.
+  service = first_service_;
+  while (service)
+  {
+    if (keys_match(service->key_, key))
+      return service;
+    service = service->next_;
+  }
+
+  // Service was successfully initialised, pass ownership to registry.
+  new_service.ptr_->next_ = first_service_;
+  first_service_ = new_service.ptr_;
+  new_service.ptr_ = 0;
+  return first_service_;
+}
+
+void service_registry::do_add_service(
+    const asio::io_service::service::key& key,
+    asio::io_service::service* new_service)
+{
+  if (&owner_ != &new_service->get_io_service())
+    asio::detail::throw_exception(invalid_service_owner());
+
+  asio::detail::mutex::scoped_lock lock(mutex_);
+
+  // Check if there is an existing service object with the given key.
+  asio::io_service::service* service = first_service_;
+  while (service)
+  {
+    if (keys_match(service->key_, key))
+      asio::detail::throw_exception(service_already_exists());
+    service = service->next_;
+  }
+
+  // Take ownership of the service object.
+  new_service->key_ = key;
+  new_service->next_ = first_service_;
+  first_service_ = new_service;
+}
+
+bool service_registry::do_has_service(
+    const asio::io_service::service::key& key) const
+{
+  asio::detail::mutex::scoped_lock lock(mutex_);
+
+  asio::io_service::service* service = first_service_;
+  while (service)
+  {
+    if (keys_match(service->key_, key))
+      return true;
+    service = service->next_;
+  }
+
+  return false;
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/socket_ops.ipp b/asio-1.10.6/include/asio/detail/impl/socket_ops.ipp
new file mode 100644
index 0000000..306bcf8
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/socket_ops.ipp
@@ -0,0 +1,1581 @@
+//
+// detail/impl/socket_ops.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SOCKET_OPS_IPP
+#define ASIO_DETAIL_SOCKET_OPS_IPP
+
+
+#include "asio/detail/config.hpp"
+
+#include <cctype>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <cerrno>
+#include <new>
+#include "asio/detail/assert.hpp"
+#include "asio/detail/socket_ops.hpp"
+#include "asio/error.hpp"
+
+
+#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)    || defined(__MACH__) && defined(__APPLE__)
+# if defined(ASIO_HAS_PTHREADS)
+#  include <pthread.h>
+# endif // defined(ASIO_HAS_PTHREADS)
+#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
+       // || defined(__MACH__) && defined(__APPLE__)
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+namespace socket_ops {
+
+
+
+#if defined(__hpux)
+// HP-UX doesn't declare these functions extern "C", so they are declared again
+// here to avoid linker errors about undefined symbols.
+extern "C" char* if_indextoname(unsigned int, char*);
+extern "C" unsigned int if_nametoindex(const char*);
+#endif // defined(__hpux)
+
+
+inline void clear_last_error()
+{
+  errno = 0;
+}
+
+
+template <typename ReturnType>
+inline ReturnType error_wrapper(ReturnType return_value,
+    asio::error_code& ec)
+{
+  ec = asio::error_code(errno,
+      asio::error::get_system_category());
+  return return_value;
+}
+
+template <typename SockLenType>
+inline socket_type call_accept(SockLenType msghdr::*,
+    socket_type s, socket_addr_type* addr, std::size_t* addrlen)
+{
+  SockLenType tmp_addrlen = addrlen ? (SockLenType)*addrlen : 0;
+  socket_type result = ::accept(s, addr, addrlen ? &tmp_addrlen : 0);
+  if (addrlen)
+    *addrlen = (std::size_t)tmp_addrlen;
+  return result;
+}
+
+socket_type accept(socket_type s, socket_addr_type* addr,
+    std::size_t* addrlen, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return invalid_socket;
+  }
+
+  clear_last_error();
+
+  socket_type new_s = error_wrapper(call_accept(
+        &msghdr::msg_namelen, s, addr, addrlen), ec);
+  if (new_s == invalid_socket)
+    return new_s;
+
+#if defined(__MACH__) && defined(__APPLE__) || defined(__FreeBSD__)
+  int optval = 1;
+  int result = error_wrapper(::setsockopt(new_s,
+        SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof(optval)), ec);
+  if (result != 0)
+  {
+    ::close(new_s);
+    return invalid_socket;
+  }
+#endif
+
+  ec = asio::error_code();
+  return new_s;
+}
+
+socket_type sync_accept(socket_type s, state_type state,
+    socket_addr_type* addr, std::size_t* addrlen, asio::error_code& ec)
+{
+  // Accept a socket.
+  for (;;)
+  {
+    // Try to complete the operation without blocking.
+    socket_type new_socket = socket_ops::accept(s, addr, addrlen, ec);
+
+    // Check if operation succeeded.
+    if (new_socket != invalid_socket)
+      return new_socket;
+
+    // Operation failed.
+    if (ec == asio::error::would_block
+        || ec == asio::error::try_again)
+    {
+      if (state & user_set_non_blocking)
+        return invalid_socket;
+      // Fall through to retry operation.
+    }
+    else if (ec == asio::error::connection_aborted)
+    {
+      if (state & enable_connection_aborted)
+        return invalid_socket;
+      // Fall through to retry operation.
+    }
+#if defined(EPROTO)
+    else if (ec.value() == EPROTO)
+    {
+      if (state & enable_connection_aborted)
+        return invalid_socket;
+      // Fall through to retry operation.
+    }
+#endif // defined(EPROTO)
+    else
+      return invalid_socket;
+
+    // Wait for socket to become ready.
+    if (socket_ops::poll_read(s, 0, ec) < 0)
+      return invalid_socket;
+  }
+}
+
+
+bool non_blocking_accept(socket_type s,
+    state_type state, socket_addr_type* addr, std::size_t* addrlen,
+    asio::error_code& ec, socket_type& new_socket)
+{
+  for (;;)
+  {
+    // Accept the waiting connection.
+    new_socket = socket_ops::accept(s, addr, addrlen, ec);
+
+    // Check if operation succeeded.
+    if (new_socket != invalid_socket)
+      return true;
+
+    // Retry operation if interrupted by signal.
+    if (ec == asio::error::interrupted)
+      continue;
+
+    // Operation failed.
+    if (ec == asio::error::would_block
+        || ec == asio::error::try_again)
+    {
+      if (state & user_set_non_blocking)
+        return true;
+      // Fall through to retry operation.
+    }
+    else if (ec == asio::error::connection_aborted)
+    {
+      if (state & enable_connection_aborted)
+        return true;
+      // Fall through to retry operation.
+    }
+#if defined(EPROTO)
+    else if (ec.value() == EPROTO)
+    {
+      if (state & enable_connection_aborted)
+        return true;
+      // Fall through to retry operation.
+    }
+#endif // defined(EPROTO)
+    else
+      return true;
+
+    return false;
+  }
+}
+
+
+template <typename SockLenType>
+inline int call_bind(SockLenType msghdr::*,
+    socket_type s, const socket_addr_type* addr, std::size_t addrlen)
+{
+  return ::bind(s, addr, (SockLenType)addrlen);
+}
+
+int bind(socket_type s, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  clear_last_error();
+  int result = error_wrapper(call_bind(
+        &msghdr::msg_namelen, s, addr, addrlen), ec);
+  if (result == 0)
+    ec = asio::error_code();
+  return result;
+}
+
+int close(socket_type s, state_type& state,
+    bool destruction, asio::error_code& ec)
+{
+  int result = 0;
+  if (s != invalid_socket)
+  {
+    // We don't want the destructor to block, so set the socket to linger in
+    // the background. If the user doesn't like this behaviour then they need
+    // to explicitly close the socket.
+    if (destruction && (state & user_set_linger))
+    {
+      ::linger opt;
+      opt.l_onoff = 0;
+      opt.l_linger = 0;
+      asio::error_code ignored_ec;
+      socket_ops::setsockopt(s, state, SOL_SOCKET,
+          SO_LINGER, &opt, sizeof(opt), ignored_ec);
+    }
+
+    clear_last_error();
+    result = error_wrapper(::close(s), ec);
+
+    if (result != 0
+        && (ec == asio::error::would_block
+          || ec == asio::error::try_again))
+    {
+      // According to UNIX Network Programming Vol. 1, it is possible for
+      // close() to fail with EWOULDBLOCK under certain circumstances. What
+      // isn't clear is the state of the descriptor after this error. The one
+      // current OS where this behaviour is seen, Windows, says that the socket
+      // remains open. Therefore we'll put the descriptor back into blocking
+      // mode and have another attempt at closing it.
+      ioctl_arg_type arg = 0;
+      ::ioctl(s, FIONBIO, &arg);
+      state &= ~non_blocking;
+
+      clear_last_error();
+      result = error_wrapper(::close(s), ec);
+    }
+  }
+
+  if (result == 0)
+    ec = asio::error_code();
+  return result;
+}
+
+bool set_user_non_blocking(socket_type s,
+    state_type& state, bool value, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return false;
+  }
+
+  clear_last_error();
+  ioctl_arg_type arg = (value ? 1 : 0);
+  int result = error_wrapper(::ioctl(s, FIONBIO, &arg), ec);
+
+  if (result >= 0)
+  {
+    ec = asio::error_code();
+    if (value)
+      state |= user_set_non_blocking;
+    else
+    {
+      // Clearing the user-set non-blocking mode always overrides any
+      // internally-set non-blocking flag. Any subsequent asynchronous
+      // operations will need to re-enable non-blocking I/O.
+      state &= ~(user_set_non_blocking | internal_non_blocking);
+    }
+    return true;
+  }
+
+  return false;
+}
+
+bool set_internal_non_blocking(socket_type s,
+    state_type& state, bool value, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return false;
+  }
+
+  if (!value && (state & user_set_non_blocking))
+  {
+    // It does not make sense to clear the internal non-blocking flag if the
+    // user still wants non-blocking behaviour. Return an error and let the
+    // caller figure out whether to update the user-set non-blocking flag.
+    ec = asio::error::invalid_argument;
+    return false;
+  }
+
+  clear_last_error();
+  ioctl_arg_type arg = (value ? 1 : 0);
+  int result = error_wrapper(::ioctl(s, FIONBIO, &arg), ec);
+
+  if (result >= 0)
+  {
+    ec = asio::error_code();
+    if (value)
+      state |= internal_non_blocking;
+    else
+      state &= ~internal_non_blocking;
+    return true;
+  }
+
+  return false;
+}
+
+int shutdown(socket_type s, int what, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  clear_last_error();
+  int result = error_wrapper(::shutdown(s, what), ec);
+  if (result == 0)
+    ec = asio::error_code();
+  return result;
+}
+
+template <typename SockLenType>
+inline int call_connect(SockLenType msghdr::*,
+    socket_type s, const socket_addr_type* addr, std::size_t addrlen)
+{
+  return ::connect(s, addr, (SockLenType)addrlen);
+}
+
+int connect(socket_type s, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  clear_last_error();
+  int result = error_wrapper(call_connect(
+        &msghdr::msg_namelen, s, addr, addrlen), ec);
+  if (result == 0)
+    ec = asio::error_code();
+#if defined(__linux__)
+  else if (ec == asio::error::try_again)
+    ec = asio::error::no_buffer_space;
+#endif // defined(__linux__)
+  return result;
+}
+
+void sync_connect(socket_type s, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec)
+{
+  // Perform the connect operation.
+  socket_ops::connect(s, addr, addrlen, ec);
+  if (ec != asio::error::in_progress
+      && ec != asio::error::would_block)
+  {
+    // The connect operation finished immediately.
+    return;
+  }
+
+  // Wait for socket to become ready.
+  if (socket_ops::poll_connect(s, ec) < 0)
+    return;
+
+  // Get the error code from the connect operation.
+  int connect_error = 0;
+  size_t connect_error_len = sizeof(connect_error);
+  if (socket_ops::getsockopt(s, 0, SOL_SOCKET, SO_ERROR,
+        &connect_error, &connect_error_len, ec) == socket_error_retval)
+    return;
+
+  // Return the result of the connect operation.
+  ec = asio::error_code(connect_error,
+      asio::error::get_system_category());
+}
+
+
+bool non_blocking_connect(socket_type s, asio::error_code& ec)
+{
+  // Check if the connect operation has finished. This is required since we may
+  // get spurious readiness notifications from the reactor.
+      // || defined(__CYGWIN__)
+      // || defined(__SYMBIAN32__)
+  pollfd fds;
+  fds.fd = s;
+  fds.events = POLLOUT;
+  fds.revents = 0;
+  int ready = ::poll(&fds, 1, 0);
+       // || defined(__CYGWIN__)
+       // || defined(__SYMBIAN32__)
+  if (ready == 0)
+  {
+    // The asynchronous connect operation is still in progress.
+    return false;
+  }
+
+  // Get the error code from the connect operation.
+  int connect_error = 0;
+  size_t connect_error_len = sizeof(connect_error);
+  if (socket_ops::getsockopt(s, 0, SOL_SOCKET, SO_ERROR,
+        &connect_error, &connect_error_len, ec) == 0)
+  {
+    if (connect_error)
+    {
+      ec = asio::error_code(connect_error,
+          asio::error::get_system_category());
+    }
+    else
+      ec = asio::error_code();
+  }
+
+  return true;
+}
+
+int socketpair(int af, int type, int protocol,
+    socket_type sv[2], asio::error_code& ec)
+{
+  clear_last_error();
+  int result = error_wrapper(::socketpair(af, type, protocol, sv), ec);
+  if (result == 0)
+    ec = asio::error_code();
+  return result;
+}
+
+bool sockatmark(socket_type s, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return false;
+  }
+
+#if defined(SIOCATMARK)
+  ioctl_arg_type value = 0;
+  int result = error_wrapper(::ioctl(s, SIOCATMARK, &value), ec);
+  if (result == 0)
+    ec = asio::error_code();
+# if defined(ENOTTY)
+  if (ec.value() == ENOTTY)
+    ec = asio::error::not_socket;
+# endif // defined(ENOTTY)
+#else // defined(SIOCATMARK)
+  int value = error_wrapper(::sockatmark(s), ec);
+  if (value != -1)
+    ec = asio::error_code();
+#endif // defined(SIOCATMARK)
+
+  return ec ? false : value != 0;
+}
+
+size_t available(socket_type s, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return 0;
+  }
+
+  ioctl_arg_type value = 0;
+  int result = error_wrapper(::ioctl(s, FIONREAD, &value), ec);
+  if (result == 0)
+    ec = asio::error_code();
+#if defined(ENOTTY)
+  if (ec.value() == ENOTTY)
+    ec = asio::error::not_socket;
+#endif // defined(ENOTTY)
+
+  return ec ? static_cast<size_t>(0) : static_cast<size_t>(value);
+}
+
+int listen(socket_type s, int backlog, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  clear_last_error();
+  int result = error_wrapper(::listen(s, backlog), ec);
+  if (result == 0)
+    ec = asio::error_code();
+  return result;
+}
+
+inline void init_buf_iov_base(void*& base, void* addr)
+{
+  base = addr;
+}
+
+template <typename T>
+inline void init_buf_iov_base(T& base, void* addr)
+{
+  base = static_cast<T>(addr);
+}
+
+typedef iovec buf;
+
+void init_buf(buf& b, void* data, size_t size)
+{
+  init_buf_iov_base(b.iov_base, data);
+  b.iov_len = size;
+}
+
+void init_buf(buf& b, const void* data, size_t size)
+{
+  init_buf_iov_base(b.iov_base, const_cast<void*>(data));
+  b.iov_len = size;
+}
+
+inline void init_msghdr_msg_name(void*& name, socket_addr_type* addr)
+{
+  name = addr;
+}
+
+inline void init_msghdr_msg_name(void*& name, const socket_addr_type* addr)
+{
+  name = const_cast<socket_addr_type*>(addr);
+}
+
+template <typename T>
+inline void init_msghdr_msg_name(T& name, socket_addr_type* addr)
+{
+  name = reinterpret_cast<T>(addr);
+}
+
+template <typename T>
+inline void init_msghdr_msg_name(T& name, const socket_addr_type* addr)
+{
+  name = reinterpret_cast<T>(const_cast<socket_addr_type*>(addr));
+}
+
+signed_size_type recv(socket_type s, buf* bufs, size_t count,
+    int flags, asio::error_code& ec)
+{
+  clear_last_error();
+  msghdr msg = msghdr();
+  msg.msg_iov = bufs;
+  msg.msg_iovlen = static_cast<int>(count);
+  signed_size_type result = error_wrapper(::recvmsg(s, &msg, flags), ec);
+  if (result >= 0)
+    ec = asio::error_code();
+  return result;
+}
+
+size_t sync_recv(socket_type s, state_type state, buf* bufs,
+    size_t count, int flags, bool all_empty, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return 0;
+  }
+
+  // A request to read 0 bytes on a stream is a no-op.
+  if (all_empty && (state & stream_oriented))
+  {
+    ec = asio::error_code();
+    return 0;
+  }
+
+  // Read some data.
+  for (;;)
+  {
+    // Try to complete the operation without blocking.
+    signed_size_type bytes = socket_ops::recv(s, bufs, count, flags, ec);
+
+    // Check if operation succeeded.
+    if (bytes > 0)
+      return bytes;
+
+    // Check for EOF.
+    if ((state & stream_oriented) && bytes == 0)
+    {
+      ec = asio::error::eof;
+      return 0;
+    }
+
+    // Operation failed.
+    if ((state & user_set_non_blocking)
+        || (ec != asio::error::would_block
+          && ec != asio::error::try_again))
+      return 0;
+
+    // Wait for socket to become ready.
+    if (socket_ops::poll_read(s, 0, ec) < 0)
+      return 0;
+  }
+}
+
+
+bool non_blocking_recv(socket_type s,
+    buf* bufs, size_t count, int flags, bool is_stream,
+    asio::error_code& ec, size_t& bytes_transferred)
+{
+  for (;;)
+  {
+    // Read some data.
+    signed_size_type bytes = socket_ops::recv(s, bufs, count, flags, ec);
+
+    // Check for end of stream.
+    if (is_stream && bytes == 0)
+    {
+      ec = asio::error::eof;
+      return true;
+    }
+
+    // Retry operation if interrupted by signal.
+    if (ec == asio::error::interrupted)
+      continue;
+
+    // Check if we need to run the operation again.
+    if (ec == asio::error::would_block
+        || ec == asio::error::try_again)
+      return false;
+
+    // Operation is complete.
+    if (bytes >= 0)
+    {
+      ec = asio::error_code();
+      bytes_transferred = bytes;
+    }
+    else
+      bytes_transferred = 0;
+
+    return true;
+  }
+}
+
+
+signed_size_type recvfrom(socket_type s, buf* bufs, size_t count,
+    int flags, socket_addr_type* addr, std::size_t* addrlen,
+    asio::error_code& ec)
+{
+  clear_last_error();
+  msghdr msg = msghdr();
+  init_msghdr_msg_name(msg.msg_name, addr);
+  msg.msg_namelen = static_cast<int>(*addrlen);
+  msg.msg_iov = bufs;
+  msg.msg_iovlen = static_cast<int>(count);
+  signed_size_type result = error_wrapper(::recvmsg(s, &msg, flags), ec);
+  *addrlen = msg.msg_namelen;
+  if (result >= 0)
+    ec = asio::error_code();
+  return result;
+}
+
+size_t sync_recvfrom(socket_type s, state_type state, buf* bufs,
+    size_t count, int flags, socket_addr_type* addr,
+    std::size_t* addrlen, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return 0;
+  }
+
+  // Read some data.
+  for (;;)
+  {
+    // Try to complete the operation without blocking.
+    signed_size_type bytes = socket_ops::recvfrom(
+        s, bufs, count, flags, addr, addrlen, ec);
+
+    // Check if operation succeeded.
+    if (bytes >= 0)
+      return bytes;
+
+    // Operation failed.
+    if ((state & user_set_non_blocking)
+        || (ec != asio::error::would_block
+          && ec != asio::error::try_again))
+      return 0;
+
+    // Wait for socket to become ready.
+    if (socket_ops::poll_read(s, 0, ec) < 0)
+      return 0;
+  }
+}
+
+
+bool non_blocking_recvfrom(socket_type s,
+    buf* bufs, size_t count, int flags,
+    socket_addr_type* addr, std::size_t* addrlen,
+    asio::error_code& ec, size_t& bytes_transferred)
+{
+  for (;;)
+  {
+    // Read some data.
+    signed_size_type bytes = socket_ops::recvfrom(
+        s, bufs, count, flags, addr, addrlen, ec);
+
+    // Retry operation if interrupted by signal.
+    if (ec == asio::error::interrupted)
+      continue;
+
+    // Check if we need to run the operation again.
+    if (ec == asio::error::would_block
+        || ec == asio::error::try_again)
+      return false;
+
+    // Operation is complete.
+    if (bytes >= 0)
+    {
+      ec = asio::error_code();
+      bytes_transferred = bytes;
+    }
+    else
+      bytes_transferred = 0;
+
+    return true;
+  }
+}
+
+
+signed_size_type recvmsg(socket_type s, buf* bufs, size_t count,
+    int in_flags, int& out_flags, asio::error_code& ec)
+{
+  clear_last_error();
+  msghdr msg = msghdr();
+  msg.msg_iov = bufs;
+  msg.msg_iovlen = static_cast<int>(count);
+  signed_size_type result = error_wrapper(::recvmsg(s, &msg, in_flags), ec);
+  if (result >= 0)
+  {
+    ec = asio::error_code();
+    out_flags = msg.msg_flags;
+  }
+  else
+    out_flags = 0;
+  return result;
+}
+
+size_t sync_recvmsg(socket_type s, state_type state,
+    buf* bufs, size_t count, int in_flags, int& out_flags,
+    asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return 0;
+  }
+
+  // Read some data.
+  for (;;)
+  {
+    // Try to complete the operation without blocking.
+    signed_size_type bytes = socket_ops::recvmsg(
+        s, bufs, count, in_flags, out_flags, ec);
+
+    // Check if operation succeeded.
+    if (bytes >= 0)
+      return bytes;
+
+    // Operation failed.
+    if ((state & user_set_non_blocking)
+        || (ec != asio::error::would_block
+          && ec != asio::error::try_again))
+      return 0;
+
+    // Wait for socket to become ready.
+    if (socket_ops::poll_read(s, 0, ec) < 0)
+      return 0;
+  }
+}
+
+
+bool non_blocking_recvmsg(socket_type s,
+    buf* bufs, size_t count, int in_flags, int& out_flags,
+    asio::error_code& ec, size_t& bytes_transferred)
+{
+  for (;;)
+  {
+    // Read some data.
+    signed_size_type bytes = socket_ops::recvmsg(
+        s, bufs, count, in_flags, out_flags, ec);
+
+    // Retry operation if interrupted by signal.
+    if (ec == asio::error::interrupted)
+      continue;
+
+    // Check if we need to run the operation again.
+    if (ec == asio::error::would_block
+        || ec == asio::error::try_again)
+      return false;
+
+    // Operation is complete.
+    if (bytes >= 0)
+    {
+      ec = asio::error_code();
+      bytes_transferred = bytes;
+    }
+    else
+      bytes_transferred = 0;
+
+    return true;
+  }
+}
+
+
+signed_size_type send(socket_type s, const buf* bufs, size_t count,
+    int flags, asio::error_code& ec)
+{
+  clear_last_error();
+  msghdr msg = msghdr();
+  msg.msg_iov = const_cast<buf*>(bufs);
+  msg.msg_iovlen = static_cast<int>(count);
+#if defined(__linux__)
+  flags |= MSG_NOSIGNAL;
+#endif // defined(__linux__)
+  signed_size_type result = error_wrapper(::sendmsg(s, &msg, flags), ec);
+  if (result >= 0)
+    ec = asio::error_code();
+  return result;
+}
+
+size_t sync_send(socket_type s, state_type state, const buf* bufs,
+    size_t count, int flags, bool all_empty, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return 0;
+  }
+
+  // A request to write 0 bytes to a stream is a no-op.
+  if (all_empty && (state & stream_oriented))
+  {
+    ec = asio::error_code();
+    return 0;
+  }
+
+  // Read some data.
+  for (;;)
+  {
+    // Try to complete the operation without blocking.
+    signed_size_type bytes = socket_ops::send(s, bufs, count, flags, ec);
+
+    // Check if operation succeeded.
+    if (bytes >= 0)
+      return bytes;
+
+    // Operation failed.
+    if ((state & user_set_non_blocking)
+        || (ec != asio::error::would_block
+          && ec != asio::error::try_again))
+      return 0;
+
+    // Wait for socket to become ready.
+    if (socket_ops::poll_write(s, 0, ec) < 0)
+      return 0;
+  }
+}
+
+
+bool non_blocking_send(socket_type s,
+    const buf* bufs, size_t count, int flags,
+    asio::error_code& ec, size_t& bytes_transferred)
+{
+  for (;;)
+  {
+    // Write some data.
+    signed_size_type bytes = socket_ops::send(s, bufs, count, flags, ec);
+
+    // Retry operation if interrupted by signal.
+    if (ec == asio::error::interrupted)
+      continue;
+
+    // Check if we need to run the operation again.
+    if (ec == asio::error::would_block
+        || ec == asio::error::try_again)
+      return false;
+
+    // Operation is complete.
+    if (bytes >= 0)
+    {
+      ec = asio::error_code();
+      bytes_transferred = bytes;
+    }
+    else
+      bytes_transferred = 0;
+
+    return true;
+  }
+}
+
+
+signed_size_type sendto(socket_type s, const buf* bufs, size_t count,
+    int flags, const socket_addr_type* addr, std::size_t addrlen,
+    asio::error_code& ec)
+{
+  clear_last_error();
+  msghdr msg = msghdr();
+  init_msghdr_msg_name(msg.msg_name, addr);
+  msg.msg_namelen = static_cast<int>(addrlen);
+  msg.msg_iov = const_cast<buf*>(bufs);
+  msg.msg_iovlen = static_cast<int>(count);
+#if defined(__linux__)
+  flags |= MSG_NOSIGNAL;
+#endif // defined(__linux__)
+  signed_size_type result = error_wrapper(::sendmsg(s, &msg, flags), ec);
+  if (result >= 0)
+    ec = asio::error_code();
+  return result;
+}
+
+size_t sync_sendto(socket_type s, state_type state, const buf* bufs,
+    size_t count, int flags, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return 0;
+  }
+
+  // Write some data.
+  for (;;)
+  {
+    // Try to complete the operation without blocking.
+    signed_size_type bytes = socket_ops::sendto(
+        s, bufs, count, flags, addr, addrlen, ec);
+
+    // Check if operation succeeded.
+    if (bytes >= 0)
+      return bytes;
+
+    // Operation failed.
+    if ((state & user_set_non_blocking)
+        || (ec != asio::error::would_block
+          && ec != asio::error::try_again))
+      return 0;
+
+    // Wait for socket to become ready.
+    if (socket_ops::poll_write(s, 0, ec) < 0)
+      return 0;
+  }
+}
+
+
+bool non_blocking_sendto(socket_type s,
+    const buf* bufs, size_t count, int flags,
+    const socket_addr_type* addr, std::size_t addrlen,
+    asio::error_code& ec, size_t& bytes_transferred)
+{
+  for (;;)
+  {
+    // Write some data.
+    signed_size_type bytes = socket_ops::sendto(
+        s, bufs, count, flags, addr, addrlen, ec);
+
+    // Retry operation if interrupted by signal.
+    if (ec == asio::error::interrupted)
+      continue;
+
+    // Check if we need to run the operation again.
+    if (ec == asio::error::would_block
+        || ec == asio::error::try_again)
+      return false;
+
+    // Operation is complete.
+    if (bytes >= 0)
+    {
+      ec = asio::error_code();
+      bytes_transferred = bytes;
+    }
+    else
+      bytes_transferred = 0;
+
+    return true;
+  }
+}
+
+
+socket_type socket(int af, int type, int protocol,
+    asio::error_code& ec)
+{
+  clear_last_error();
+#if   defined(__MACH__) && defined(__APPLE__) || defined(__FreeBSD__)
+  socket_type s = error_wrapper(::socket(af, type, protocol), ec);
+  if (s == invalid_socket)
+    return s;
+
+  int optval = 1;
+  int result = error_wrapper(::setsockopt(s,
+        SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof(optval)), ec);
+  if (result != 0)
+  {
+    ::close(s);
+    return invalid_socket;
+  }
+
+  return s;
+#else
+  int s = error_wrapper(::socket(af, type, protocol), ec);
+  if (s >= 0)
+    ec = asio::error_code();
+  return s;
+#endif
+}
+
+template <typename SockLenType>
+inline int call_setsockopt(SockLenType msghdr::*,
+    socket_type s, int level, int optname,
+    const void* optval, std::size_t optlen)
+{
+  return ::setsockopt(s, level, optname,
+      (const char*)optval, (SockLenType)optlen);
+}
+
+int setsockopt(socket_type s, state_type& state, int level, int optname,
+    const void* optval, std::size_t optlen, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  if (level == custom_socket_option_level && optname == always_fail_option)
+  {
+    ec = asio::error::invalid_argument;
+    return socket_error_retval;
+  }
+
+  if (level == custom_socket_option_level
+      && optname == enable_connection_aborted_option)
+  {
+    if (optlen != sizeof(int))
+    {
+      ec = asio::error::invalid_argument;
+      return socket_error_retval;
+    }
+
+    if (*static_cast<const int*>(optval))
+      state |= enable_connection_aborted;
+    else
+      state &= ~enable_connection_aborted;
+    ec = asio::error_code();
+    return 0;
+  }
+
+  if (level == SOL_SOCKET && optname == SO_LINGER)
+    state |= user_set_linger;
+
+  clear_last_error();
+  int result = error_wrapper(call_setsockopt(&msghdr::msg_namelen,
+        s, level, optname, optval, optlen), ec);
+  if (result == 0)
+  {
+    ec = asio::error_code();
+
+#if defined(__MACH__) && defined(__APPLE__)    || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+    // To implement portable behaviour for SO_REUSEADDR with UDP sockets we
+    // need to also set SO_REUSEPORT on BSD-based platforms.
+    if ((state & datagram_oriented)
+        && level == SOL_SOCKET && optname == SO_REUSEADDR)
+    {
+      call_setsockopt(&msghdr::msg_namelen, s,
+          SOL_SOCKET, SO_REUSEPORT, optval, optlen);
+    }
+#endif
+  }
+
+  return result;
+}
+
+template <typename SockLenType>
+inline int call_getsockopt(SockLenType msghdr::*,
+    socket_type s, int level, int optname,
+    void* optval, std::size_t* optlen)
+{
+  SockLenType tmp_optlen = (SockLenType)*optlen;
+  int result = ::getsockopt(s, level, optname, (char*)optval, &tmp_optlen);
+  *optlen = (std::size_t)tmp_optlen;
+  return result;
+}
+
+int getsockopt(socket_type s, state_type state, int level, int optname,
+    void* optval, size_t* optlen, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  if (level == custom_socket_option_level && optname == always_fail_option)
+  {
+    ec = asio::error::invalid_argument;
+    return socket_error_retval;
+  }
+
+  if (level == custom_socket_option_level
+      && optname == enable_connection_aborted_option)
+  {
+    if (*optlen != sizeof(int))
+    {
+      ec = asio::error::invalid_argument;
+      return socket_error_retval;
+    }
+
+    *static_cast<int*>(optval) = (state & enable_connection_aborted) ? 1 : 0;
+    ec = asio::error_code();
+    return 0;
+  }
+
+  clear_last_error();
+  int result = error_wrapper(call_getsockopt(&msghdr::msg_namelen,
+        s, level, optname, optval, optlen), ec);
+#if defined(__linux__)
+  if (result == 0 && level == SOL_SOCKET && *optlen == sizeof(int)
+      && (optname == SO_SNDBUF || optname == SO_RCVBUF))
+  {
+    // On Linux, setting SO_SNDBUF or SO_RCVBUF to N actually causes the kernel
+    // to set the buffer size to N*2. Linux puts additional stuff into the
+    // buffers so that only about half is actually available to the application.
+    // The retrieved value is divided by 2 here to make it appear as though the
+    // correct value has been set.
+    *static_cast<int*>(optval) /= 2;
+  }
+#endif // defined(__linux__)
+  if (result == 0)
+    ec = asio::error_code();
+  return result;
+}
+
+template <typename SockLenType>
+inline int call_getpeername(SockLenType msghdr::*,
+    socket_type s, socket_addr_type* addr, std::size_t* addrlen)
+{
+  SockLenType tmp_addrlen = (SockLenType)*addrlen;
+  int result = ::getpeername(s, addr, &tmp_addrlen);
+  *addrlen = (std::size_t)tmp_addrlen;
+  return result;
+}
+
+int getpeername(socket_type s, socket_addr_type* addr,
+    std::size_t* addrlen, bool cached, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  (void)cached;
+
+  clear_last_error();
+  int result = error_wrapper(call_getpeername(
+        &msghdr::msg_namelen, s, addr, addrlen), ec);
+  if (result == 0)
+    ec = asio::error_code();
+  return result;
+}
+
+template <typename SockLenType>
+inline int call_getsockname(SockLenType msghdr::*,
+    socket_type s, socket_addr_type* addr, std::size_t* addrlen)
+{
+  SockLenType tmp_addrlen = (SockLenType)*addrlen;
+  int result = ::getsockname(s, addr, &tmp_addrlen);
+  *addrlen = (std::size_t)tmp_addrlen;
+  return result;
+}
+
+int getsockname(socket_type s, socket_addr_type* addr,
+    std::size_t* addrlen, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  clear_last_error();
+  int result = error_wrapper(call_getsockname(
+        &msghdr::msg_namelen, s, addr, addrlen), ec);
+  if (result == 0)
+    ec = asio::error_code();
+  return result;
+}
+
+int ioctl(socket_type s, state_type& state, int cmd,
+    ioctl_arg_type* arg, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+  clear_last_error();
+#if   defined(__MACH__) && defined(__APPLE__)    || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+  int result = error_wrapper(::ioctl(s,
+        static_cast<unsigned int>(cmd), arg), ec);
+#else
+  int result = error_wrapper(::ioctl(s, cmd, arg), ec);
+#endif
+  if (result >= 0)
+  {
+    ec = asio::error_code();
+
+    // When updating the non-blocking mode we always perform the ioctl syscall,
+    // even if the flags would otherwise indicate that the socket is already in
+    // the correct state. This ensures that the underlying socket is put into
+    // the state that has been requested by the user. If the ioctl syscall was
+    // successful then we need to update the flags to match.
+    if (cmd == static_cast<int>(FIONBIO))
+    {
+      if (*arg)
+      {
+        state |= user_set_non_blocking;
+      }
+      else
+      {
+        // Clearing the non-blocking mode always overrides any internally-set
+        // non-blocking flag. Any subsequent asynchronous operations will need
+        // to re-enable non-blocking I/O.
+        state &= ~(user_set_non_blocking | internal_non_blocking);
+      }
+    }
+  }
+
+  return result;
+}
+
+int select(int nfds, fd_set* readfds, fd_set* writefds,
+    fd_set* exceptfds, timeval* timeout, asio::error_code& ec)
+{
+  clear_last_error();
+
+#if defined(__hpux) && defined(__SELECT)
+  timespec ts;
+  ts.tv_sec = timeout ? timeout->tv_sec : 0;
+  ts.tv_nsec = timeout ? timeout->tv_usec * 1000 : 0;
+  return error_wrapper(::pselect(nfds, readfds,
+        writefds, exceptfds, timeout ? &ts : 0, 0), ec);
+#else
+  int result = error_wrapper(::select(nfds, readfds,
+        writefds, exceptfds, timeout), ec);
+  if (result >= 0)
+    ec = asio::error_code();
+  return result;
+#endif
+}
+
+int poll_read(socket_type s, state_type state, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+      // || defined(__CYGWIN__)
+      // || defined(__SYMBIAN32__)
+  pollfd fds;
+  fds.fd = s;
+  fds.events = POLLIN;
+  fds.revents = 0;
+  int timeout = (state & user_set_non_blocking) ? 0 : -1;
+  clear_last_error();
+  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
+       // || defined(__CYGWIN__)
+       // || defined(__SYMBIAN32__)
+  if (result == 0)
+    ec = (state & user_set_non_blocking)
+      ? asio::error::would_block : asio::error_code();
+  else if (result > 0)
+    ec = asio::error_code();
+  return result;
+}
+
+int poll_write(socket_type s, state_type state, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+      // || defined(__CYGWIN__)
+      // || defined(__SYMBIAN32__)
+  pollfd fds;
+  fds.fd = s;
+  fds.events = POLLOUT;
+  fds.revents = 0;
+  int timeout = (state & user_set_non_blocking) ? 0 : -1;
+  clear_last_error();
+  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
+       // || defined(__CYGWIN__)
+       // || defined(__SYMBIAN32__)
+  if (result == 0)
+    ec = (state & user_set_non_blocking)
+      ? asio::error::would_block : asio::error_code();
+  else if (result > 0)
+    ec = asio::error_code();
+  return result;
+}
+
+int poll_connect(socket_type s, asio::error_code& ec)
+{
+  if (s == invalid_socket)
+  {
+    ec = asio::error::bad_descriptor;
+    return socket_error_retval;
+  }
+
+      // || defined(__CYGWIN__)
+      // || defined(__SYMBIAN32__)
+  pollfd fds;
+  fds.fd = s;
+  fds.events = POLLOUT;
+  fds.revents = 0;
+  clear_last_error();
+  int result = error_wrapper(::poll(&fds, 1, -1), ec);
+  if (result >= 0)
+    ec = asio::error_code();
+  return result;
+       // || defined(__CYGWIN__)
+       // || defined(__SYMBIAN32__)
+}
+
+
+const char* inet_ntop(int af, const void* src, char* dest, size_t length,
+    unsigned long scope_id, asio::error_code& ec)
+{
+  clear_last_error();
+  const char* result = error_wrapper(::inet_ntop(
+        af, src, dest, static_cast<int>(length)), ec);
+  if (result == 0 && !ec)
+    ec = asio::error::invalid_argument;
+  if (result != 0 && af == ASIO_OS_DEF(AF_INET6) && scope_id != 0)
+  {
+    using namespace std; // For strcat and sprintf.
+    char if_name[IF_NAMESIZE + 1] = "%";
+    const in6_addr_type* ipv6_address = static_cast<const in6_addr_type*>(src);
+    bool is_link_local = ((ipv6_address->s6_addr[0] == 0xfe)
+        && ((ipv6_address->s6_addr[1] & 0xc0) == 0x80));
+    bool is_multicast_link_local = ((ipv6_address->s6_addr[0] == 0xff)
+        && ((ipv6_address->s6_addr[1] & 0x0f) == 0x02));
+    if ((!is_link_local && !is_multicast_link_local)
+        || if_indextoname(static_cast<unsigned>(scope_id), if_name + 1) == 0)
+      sprintf(if_name + 1, "%lu", scope_id);
+    strcat(dest, if_name);
+  }
+  return result;
+}
+
+int inet_pton(int af, const char* src, void* dest,
+    unsigned long* scope_id, asio::error_code& ec)
+{
+  clear_last_error();
+  using namespace std; // For strchr, memcpy and atoi.
+
+  // On some platforms, inet_pton fails if an address string contains a scope
+  // id. Detect and remove the scope id before passing the string to inet_pton.
+  const bool is_v6 = (af == ASIO_OS_DEF(AF_INET6));
+  const char* if_name = is_v6 ? strchr(src, '%') : 0;
+  char src_buf[max_addr_v6_str_len + 1];
+  const char* src_ptr = src;
+  if (if_name != 0)
+  {
+    if (if_name - src > max_addr_v6_str_len)
+    {
+      ec = asio::error::invalid_argument;
+      return 0;
+    }
+    memcpy(src_buf, src, if_name - src);
+    src_buf[if_name - src] = 0;
+    src_ptr = src_buf;
+  }
+
+  int result = error_wrapper(::inet_pton(af, src_ptr, dest), ec);
+  if (result <= 0 && !ec)
+    ec = asio::error::invalid_argument;
+  if (result > 0 && is_v6 && scope_id)
+  {
+    using namespace std; // For strchr and atoi.
+    *scope_id = 0;
+    if (if_name != 0)
+    {
+      in6_addr_type* ipv6_address = static_cast<in6_addr_type*>(dest);
+      bool is_link_local = ((ipv6_address->s6_addr[0] == 0xfe)
+          && ((ipv6_address->s6_addr[1] & 0xc0) == 0x80));
+      bool is_multicast_link_local = ((ipv6_address->s6_addr[0] == 0xff)
+          && ((ipv6_address->s6_addr[1] & 0x0f) == 0x02));
+      if (is_link_local || is_multicast_link_local)
+        *scope_id = if_nametoindex(if_name + 1);
+      if (*scope_id == 0)
+        *scope_id = atoi(if_name + 1);
+    }
+  }
+  return result;
+}
+
+int gethostname(char* name, int namelen, asio::error_code& ec)
+{
+  clear_last_error();
+  int result = error_wrapper(::gethostname(name, namelen), ec);
+  return result;
+}
+
+
+
+inline asio::error_code translate_addrinfo_error(int error)
+{
+  switch (error)
+  {
+  case 0:
+    return asio::error_code();
+  case EAI_AGAIN:
+    return asio::error::host_not_found_try_again;
+  case EAI_BADFLAGS:
+    return asio::error::invalid_argument;
+  case EAI_FAIL:
+    return asio::error::no_recovery;
+  case EAI_FAMILY:
+    return asio::error::address_family_not_supported;
+  case EAI_MEMORY:
+    return asio::error::no_memory;
+  case EAI_NONAME:
+#if defined(EAI_ADDRFAMILY)
+  case EAI_ADDRFAMILY:
+#endif
+#if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
+  case EAI_NODATA:
+#endif
+    return asio::error::host_not_found;
+  case EAI_SERVICE:
+    return asio::error::service_not_found;
+  case EAI_SOCKTYPE:
+    return asio::error::socket_type_not_supported;
+  default: // Possibly the non-portable EAI_SYSTEM.
+    return asio::error_code(
+        errno, asio::error::get_system_category());
+  }
+}
+
+asio::error_code getaddrinfo(const char* host,
+    const char* service, const addrinfo_type& hints,
+    addrinfo_type** result, asio::error_code& ec)
+{
+  host = (host && *host) ? host : 0;
+  service = (service && *service) ? service : 0;
+  clear_last_error();
+  int error = ::getaddrinfo(host, service, &hints, result);
+  return ec = translate_addrinfo_error(error);
+}
+
+asio::error_code background_getaddrinfo(
+    const weak_cancel_token_type& cancel_token, const char* host,
+    const char* service, const addrinfo_type& hints,
+    addrinfo_type** result, asio::error_code& ec)
+{
+  if (cancel_token.expired())
+    ec = asio::error::operation_aborted;
+  else
+    socket_ops::getaddrinfo(host, service, hints, result, ec);
+  return ec;
+}
+
+void freeaddrinfo(addrinfo_type* ai)
+{
+  ::freeaddrinfo(ai);
+}
+
+asio::error_code getnameinfo(const socket_addr_type* addr,
+    std::size_t addrlen, char* host, std::size_t hostlen,
+    char* serv, std::size_t servlen, int flags, asio::error_code& ec)
+{
+  clear_last_error();
+  int error = ::getnameinfo(addr, addrlen, host, hostlen, serv, servlen, flags);
+  return ec = translate_addrinfo_error(error);
+}
+
+asio::error_code sync_getnameinfo(
+    const socket_addr_type* addr, std::size_t addrlen,
+    char* host, std::size_t hostlen, char* serv,
+    std::size_t servlen, int sock_type, asio::error_code& ec)
+{
+  // First try resolving with the service name. If that fails try resolving
+  // but allow the service to be returned as a number.
+  int flags = (sock_type == SOCK_DGRAM) ? NI_DGRAM : 0;
+  socket_ops::getnameinfo(addr, addrlen, host,
+      hostlen, serv, servlen, flags, ec);
+  if (ec)
+  {
+    socket_ops::getnameinfo(addr, addrlen, host, hostlen,
+        serv, servlen, flags | NI_NUMERICSERV, ec);
+  }
+
+  return ec;
+}
+
+asio::error_code background_getnameinfo(
+    const weak_cancel_token_type& cancel_token,
+    const socket_addr_type* addr, std::size_t addrlen,
+    char* host, std::size_t hostlen, char* serv,
+    std::size_t servlen, int sock_type, asio::error_code& ec)
+{
+  if (cancel_token.expired())
+  {
+    ec = asio::error::operation_aborted;
+  }
+  else
+  {
+    // First try resolving with the service name. If that fails try resolving
+    // but allow the service to be returned as a number.
+    int flags = (sock_type == SOCK_DGRAM) ? NI_DGRAM : 0;
+    socket_ops::getnameinfo(addr, addrlen, host,
+        hostlen, serv, servlen, flags, ec);
+    if (ec)
+    {
+      socket_ops::getnameinfo(addr, addrlen, host, hostlen,
+          serv, servlen, flags | NI_NUMERICSERV, ec);
+    }
+  }
+
+  return ec;
+}
+
+
+u_long_type network_to_host_long(u_long_type value)
+{
+  return ntohl(value);
+}
+
+u_long_type host_to_network_long(u_long_type value)
+{
+  return htonl(value);
+}
+
+u_short_type network_to_host_short(u_short_type value)
+{
+  return ntohs(value);
+}
+
+u_short_type host_to_network_short(u_short_type value)
+{
+  return htons(value);
+}
+
+} // namespace socket_ops
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_SOCKET_OPS_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/task_io_service.hpp b/asio-1.10.6/include/asio/detail/impl/task_io_service.hpp
new file mode 100644
index 0000000..400c4fb
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/task_io_service.hpp
@@ -0,0 +1,75 @@
+//
+// detail/impl/task_io_service.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
+#define ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
+
+
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/completion_handler.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_cont_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Handler>
+void task_io_service::dispatch(Handler& handler)
+{
+  if (thread_call_stack::contains(this))
+  {
+    fenced_block b(fenced_block::full);
+    asio_handler_invoke_helpers::invoke(handler, handler);
+  }
+  else
+  {
+    // Allocate and construct an operation to wrap the handler.
+    typedef completion_handler<Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(handler);
+
+    ASIO_HANDLER_CREATION((p.p, "io_service", this, "dispatch"));
+
+    do_dispatch(p.p);
+    p.v = p.p = 0;
+  }
+}
+
+template <typename Handler>
+void task_io_service::post(Handler& handler)
+{
+  bool is_continuation =
+    asio_handler_cont_helpers::is_continuation(handler);
+
+  // Allocate and construct an operation to wrap the handler.
+  typedef completion_handler<Handler> op;
+  typename op::ptr p = { asio::detail::addressof(handler),
+    asio_handler_alloc_helpers::allocate(
+      sizeof(op), handler), 0 };
+  p.p = new (p.v) op(handler);
+
+  ASIO_HANDLER_CREATION((p.p, "io_service", this, "post"));
+
+  post_immediate_completion(p.p, is_continuation);
+  p.v = p.p = 0;
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_IMPL_TASK_IO_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/detail/impl/task_io_service.ipp b/asio-1.10.6/include/asio/detail/impl/task_io_service.ipp
new file mode 100644
index 0000000..5c2b8c9
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/task_io_service.ipp
@@ -0,0 +1,455 @@
+//
+// detail/impl/task_io_service.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_TASK_IO_SERVICE_IPP
+#define ASIO_DETAIL_IMPL_TASK_IO_SERVICE_IPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include "asio/detail/event.hpp"
+#include "asio/detail/limits.hpp"
+#include "asio/detail/reactor.hpp"
+#include "asio/detail/task_io_service.hpp"
+#include "asio/detail/task_io_service_thread_info.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+struct task_io_service::task_cleanup
+{
+  ~task_cleanup()
+  {
+    if (this_thread_->private_outstanding_work > 0)
+    {
+      asio::detail::increment(
+          task_io_service_->outstanding_work_,
+          this_thread_->private_outstanding_work);
+    }
+    this_thread_->private_outstanding_work = 0;
+
+    // Enqueue the completed operations and reinsert the task at the end of
+    // the operation queue.
+    lock_->lock();
+    task_io_service_->task_interrupted_ = true;
+    task_io_service_->op_queue_.push(this_thread_->private_op_queue);
+    task_io_service_->op_queue_.push(&task_io_service_->task_operation_);
+  }
+
+  task_io_service* task_io_service_;
+  mutex::scoped_lock* lock_;
+  thread_info* this_thread_;
+};
+
+struct task_io_service::work_cleanup
+{
+  ~work_cleanup()
+  {
+    if (this_thread_->private_outstanding_work > 1)
+    {
+      asio::detail::increment(
+          task_io_service_->outstanding_work_,
+          this_thread_->private_outstanding_work - 1);
+    }
+    else if (this_thread_->private_outstanding_work < 1)
+    {
+      task_io_service_->work_finished();
+    }
+    this_thread_->private_outstanding_work = 0;
+
+    if (!this_thread_->private_op_queue.empty())
+    {
+      lock_->lock();
+      task_io_service_->op_queue_.push(this_thread_->private_op_queue);
+    }
+  }
+
+  task_io_service* task_io_service_;
+  mutex::scoped_lock* lock_;
+  thread_info* this_thread_;
+};
+
+task_io_service::task_io_service(
+    asio::io_service& io_service, std::size_t concurrency_hint)
+  : asio::detail::service_base<task_io_service>(io_service),
+    one_thread_(concurrency_hint == 1),
+    mutex_(),
+    task_(0),
+    task_interrupted_(true),
+    outstanding_work_(0),
+    stopped_(false),
+    shutdown_(false)
+{
+  ASIO_HANDLER_TRACKING_INIT;
+}
+
+void task_io_service::shutdown_service()
+{
+  mutex::scoped_lock lock(mutex_);
+  shutdown_ = true;
+  lock.unlock();
+
+  // Destroy handler objects.
+  while (!op_queue_.empty())
+  {
+    operation* o = op_queue_.front();
+    op_queue_.pop();
+    if (o != &task_operation_)
+      o->destroy();
+  }
+
+  // Reset to initial state.
+  task_ = 0;
+}
+
+void task_io_service::init_task()
+{
+  mutex::scoped_lock lock(mutex_);
+  if (!shutdown_ && !task_)
+  {
+    task_ = &use_service<reactor>(this->get_io_service());
+    op_queue_.push(&task_operation_);
+    wake_one_thread_and_unlock(lock);
+  }
+}
+
+std::size_t task_io_service::run(asio::error_code& ec)
+{
+  ec = asio::error_code();
+  if (outstanding_work_ == 0)
+  {
+    stop();
+    return 0;
+  }
+
+  thread_info this_thread;
+  this_thread.private_outstanding_work = 0;
+  thread_call_stack::context ctx(this, this_thread);
+
+  mutex::scoped_lock lock(mutex_);
+
+  std::size_t n = 0;
+  for (; do_run_one(lock, this_thread, ec); lock.lock())
+    if (n != (std::numeric_limits<std::size_t>::max)())
+      ++n;
+  return n;
+}
+
+std::size_t task_io_service::run_one(asio::error_code& ec)
+{
+  ec = asio::error_code();
+  if (outstanding_work_ == 0)
+  {
+    stop();
+    return 0;
+  }
+
+  thread_info this_thread;
+  this_thread.private_outstanding_work = 0;
+  thread_call_stack::context ctx(this, this_thread);
+
+  mutex::scoped_lock lock(mutex_);
+
+  return do_run_one(lock, this_thread, ec);
+}
+
+std::size_t task_io_service::poll(asio::error_code& ec)
+{
+  ec = asio::error_code();
+  if (outstanding_work_ == 0)
+  {
+    stop();
+    return 0;
+  }
+
+  thread_info this_thread;
+  this_thread.private_outstanding_work = 0;
+  thread_call_stack::context ctx(this, this_thread);
+
+  mutex::scoped_lock lock(mutex_);
+
+  // We want to support nested calls to poll() and poll_one(), so any handlers
+  // that are already on a thread-private queue need to be put on to the main
+  // queue now.
+  if (one_thread_)
+    if (thread_info* outer_thread_info = ctx.next_by_key())
+      op_queue_.push(outer_thread_info->private_op_queue);
+
+  std::size_t n = 0;
+  for (; do_poll_one(lock, this_thread, ec); lock.lock())
+    if (n != (std::numeric_limits<std::size_t>::max)())
+      ++n;
+  return n;
+}
+
+std::size_t task_io_service::poll_one(asio::error_code& ec)
+{
+  ec = asio::error_code();
+  if (outstanding_work_ == 0)
+  {
+    stop();
+    return 0;
+  }
+
+  thread_info this_thread;
+  this_thread.private_outstanding_work = 0;
+  thread_call_stack::context ctx(this, this_thread);
+
+  mutex::scoped_lock lock(mutex_);
+
+  // We want to support nested calls to poll() and poll_one(), so any handlers
+  // that are already on a thread-private queue need to be put on to the main
+  // queue now.
+  if (one_thread_)
+    if (thread_info* outer_thread_info = ctx.next_by_key())
+      op_queue_.push(outer_thread_info->private_op_queue);
+
+  return do_poll_one(lock, this_thread, ec);
+}
+
+void task_io_service::stop()
+{
+  mutex::scoped_lock lock(mutex_);
+  stop_all_threads(lock);
+}
+
+bool task_io_service::stopped() const
+{
+  mutex::scoped_lock lock(mutex_);
+  return stopped_;
+}
+
+void task_io_service::reset()
+{
+  mutex::scoped_lock lock(mutex_);
+  stopped_ = false;
+}
+
+void task_io_service::post_immediate_completion(
+    task_io_service::operation* op, bool is_continuation)
+{
+  if (one_thread_ || is_continuation)
+  {
+    if (thread_info* this_thread = thread_call_stack::contains(this))
+    {
+      ++this_thread->private_outstanding_work;
+      this_thread->private_op_queue.push(op);
+      return;
+    }
+  }
+
+  work_started();
+  mutex::scoped_lock lock(mutex_);
+  op_queue_.push(op);
+  wake_one_thread_and_unlock(lock);
+}
+
+void task_io_service::post_deferred_completion(task_io_service::operation* op)
+{
+  if (one_thread_)
+  {
+    if (thread_info* this_thread = thread_call_stack::contains(this))
+    {
+      this_thread->private_op_queue.push(op);
+      return;
+    }
+  }
+
+  mutex::scoped_lock lock(mutex_);
+  op_queue_.push(op);
+  wake_one_thread_and_unlock(lock);
+}
+
+void task_io_service::post_deferred_completions(
+    op_queue<task_io_service::operation>& ops)
+{
+  if (!ops.empty())
+  {
+    if (one_thread_)
+    {
+      if (thread_info* this_thread = thread_call_stack::contains(this))
+      {
+        this_thread->private_op_queue.push(ops);
+        return;
+      }
+    }
+
+    mutex::scoped_lock lock(mutex_);
+    op_queue_.push(ops);
+    wake_one_thread_and_unlock(lock);
+  }
+}
+
+void task_io_service::do_dispatch(
+    task_io_service::operation* op)
+{
+  work_started();
+  mutex::scoped_lock lock(mutex_);
+  op_queue_.push(op);
+  wake_one_thread_and_unlock(lock);
+}
+
+void task_io_service::abandon_operations(
+    op_queue<task_io_service::operation>& ops)
+{
+  op_queue<task_io_service::operation> ops2;
+  ops2.push(ops);
+}
+
+std::size_t task_io_service::do_run_one(mutex::scoped_lock& lock,
+    task_io_service::thread_info& this_thread,
+    const asio::error_code& ec)
+{
+  while (!stopped_)
+  {
+    if (!op_queue_.empty())
+    {
+      // Prepare to execute first handler from queue.
+      operation* o = op_queue_.front();
+      op_queue_.pop();
+      bool more_handlers = (!op_queue_.empty());
+
+      if (o == &task_operation_)
+      {
+        task_interrupted_ = more_handlers;
+
+        if (more_handlers && !one_thread_)
+          wakeup_event_.unlock_and_signal_one(lock);
+        else
+          lock.unlock();
+
+        task_cleanup on_exit = { this, &lock, &this_thread };
+        (void)on_exit;
+
+        // Run the task. May throw an exception. Only block if the operation
+        // queue is empty and we're not polling, otherwise we want to return
+        // as soon as possible.
+        task_->run(!more_handlers, this_thread.private_op_queue);
+      }
+      else
+      {
+        std::size_t task_result = o->task_result_;
+
+        if (more_handlers && !one_thread_)
+          wake_one_thread_and_unlock(lock);
+        else
+          lock.unlock();
+
+        // Ensure the count of outstanding work is decremented on block exit.
+        work_cleanup on_exit = { this, &lock, &this_thread };
+        (void)on_exit;
+
+        // Complete the operation. May throw an exception. Deletes the object.
+        o->complete(*this, ec, task_result);
+
+        return 1;
+      }
+    }
+    else
+    {
+      wakeup_event_.clear(lock);
+      wakeup_event_.wait(lock);
+    }
+  }
+
+  return 0;
+}
+
+std::size_t task_io_service::do_poll_one(mutex::scoped_lock& lock,
+    task_io_service::thread_info& this_thread,
+    const asio::error_code& ec)
+{
+  if (stopped_)
+    return 0;
+
+  operation* o = op_queue_.front();
+  if (o == &task_operation_)
+  {
+    op_queue_.pop();
+    lock.unlock();
+
+    {
+      task_cleanup c = { this, &lock, &this_thread };
+      (void)c;
+
+      // Run the task. May throw an exception. Only block if the operation
+      // queue is empty and we're not polling, otherwise we want to return
+      // as soon as possible.
+      task_->run(false, this_thread.private_op_queue);
+    }
+
+    o = op_queue_.front();
+    if (o == &task_operation_)
+    {
+      wakeup_event_.maybe_unlock_and_signal_one(lock);
+      return 0;
+    }
+  }
+
+  if (o == 0)
+    return 0;
+
+  op_queue_.pop();
+  bool more_handlers = (!op_queue_.empty());
+
+  std::size_t task_result = o->task_result_;
+
+  if (more_handlers && !one_thread_)
+    wake_one_thread_and_unlock(lock);
+  else
+    lock.unlock();
+
+  // Ensure the count of outstanding work is decremented on block exit.
+  work_cleanup on_exit = { this, &lock, &this_thread };
+  (void)on_exit;
+
+  // Complete the operation. May throw an exception. Deletes the object.
+  o->complete(*this, ec, task_result);
+
+  return 1;
+}
+
+void task_io_service::stop_all_threads(
+    mutex::scoped_lock& lock)
+{
+  stopped_ = true;
+  wakeup_event_.signal_all(lock);
+
+  if (!task_interrupted_ && task_)
+  {
+    task_interrupted_ = true;
+    task_->interrupt();
+  }
+}
+
+void task_io_service::wake_one_thread_and_unlock(
+    mutex::scoped_lock& lock)
+{
+  if (!wakeup_event_.maybe_unlock_and_signal_one(lock))
+  {
+    if (!task_interrupted_ && task_)
+    {
+      task_interrupted_ = true;
+      task_->interrupt();
+    }
+    lock.unlock();
+  }
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+
+#endif // ASIO_DETAIL_IMPL_TASK_IO_SERVICE_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/throw_error.ipp b/asio-1.10.6/include/asio/detail/impl/throw_error.ipp
new file mode 100644
index 0000000..fccc204
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/throw_error.ipp
@@ -0,0 +1,46 @@
+//
+// detail/impl/throw_error.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_THROW_ERROR_IPP
+#define ASIO_DETAIL_IMPL_THROW_ERROR_IPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/detail/throw_exception.hpp"
+#include "asio/system_error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+void do_throw_error(const asio::error_code& err)
+{
+  asio::system_error e(err);
+  asio::detail::throw_exception(e);
+}
+
+void do_throw_error(const asio::error_code& err, const char* location)
+{
+  // boostify: non-boost code starts here
+  // boostify: non-boost code ends here
+  asio::system_error e(err, location);
+  asio::detail::throw_exception(e);
+  // boostify: non-boost code starts here
+  // boostify: non-boost code ends here
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_IMPL_THROW_ERROR_IPP
diff --git a/asio-1.10.6/include/asio/detail/impl/timer_queue_set.ipp b/asio-1.10.6/include/asio/detail/impl/timer_queue_set.ipp
new file mode 100644
index 0000000..3d82b45
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/impl/timer_queue_set.ipp
@@ -0,0 +1,98 @@
+//
+// detail/impl/timer_queue_set.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP
+#define ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/timer_queue_set.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+timer_queue_set::timer_queue_set()
+  : first_(0)
+{
+}
+
+void timer_queue_set::insert(timer_queue_base* q)
+{
+  q->next_ = first_;
+  first_ = q;
+}
+
+void timer_queue_set::erase(timer_queue_base* q)
+{
+  if (first_)
+  {
+    if (q == first_)
+    {
+      first_ = q->next_;
+      q->next_ = 0;
+      return;
+    }
+
+    for (timer_queue_base* p = first_; p->next_; p = p->next_)
+    {
+      if (p->next_ == q)
+      {
+        p->next_ = q->next_;
+        q->next_ = 0;
+        return;
+      }
+    }
+  }
+}
+
+bool timer_queue_set::all_empty() const
+{
+  for (timer_queue_base* p = first_; p; p = p->next_)
+    if (!p->empty())
+      return false;
+  return true;
+}
+
+long timer_queue_set::wait_duration_msec(long max_duration) const
+{
+  long min_duration = max_duration;
+  for (timer_queue_base* p = first_; p; p = p->next_)
+    min_duration = p->wait_duration_msec(min_duration);
+  return min_duration;
+}
+
+long timer_queue_set::wait_duration_usec(long max_duration) const
+{
+  long min_duration = max_duration;
+  for (timer_queue_base* p = first_; p; p = p->next_)
+    min_duration = p->wait_duration_usec(min_duration);
+  return min_duration;
+}
+
+void timer_queue_set::get_ready_timers(op_queue<operation>& ops)
+{
+  for (timer_queue_base* p = first_; p; p = p->next_)
+    p->get_ready_timers(ops);
+}
+
+void timer_queue_set::get_all_timers(op_queue<operation>& ops)
+{
+  for (timer_queue_base* p = first_; p; p = p->next_)
+    p->get_all_timers(ops);
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP
diff --git a/asio-1.10.6/include/asio/detail/io_control.hpp b/asio-1.10.6/include/asio/detail/io_control.hpp
new file mode 100644
index 0000000..0204bad
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/io_control.hpp
@@ -0,0 +1,131 @@
+//
+// detail/io_control.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IO_CONTROL_HPP
+#define ASIO_DETAIL_IO_CONTROL_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+namespace io_control {
+
+// IO control command for non-blocking I/O.
+class non_blocking_io
+{
+public:
+  // Default constructor.
+  non_blocking_io()
+    : value_(0)
+  {
+  }
+
+  // Construct with a specific command value.
+  non_blocking_io(bool value)
+    : value_(value ? 1 : 0)
+  {
+  }
+
+  // Get the name of the IO control command.
+  int name() const
+  {
+    return static_cast<int>(ASIO_OS_DEF(FIONBIO));
+  }
+
+  // Set the value of the I/O control command.
+  void set(bool value)
+  {
+    value_ = value ? 1 : 0;
+  }
+
+  // Get the current value of the I/O control command.
+  bool get() const
+  {
+    return value_ != 0;
+  }
+
+  // Get the address of the command data.
+  detail::ioctl_arg_type* data()
+  {
+    return &value_;
+  }
+
+  // Get the address of the command data.
+  const detail::ioctl_arg_type* data() const
+  {
+    return &value_;
+  }
+
+private:
+  detail::ioctl_arg_type value_;
+};
+
+// I/O control command for getting number of bytes available.
+class bytes_readable
+{
+public:
+  // Default constructor.
+  bytes_readable()
+    : value_(0)
+  {
+  }
+
+  // Construct with a specific command value.
+  bytes_readable(std::size_t value)
+    : value_(static_cast<detail::ioctl_arg_type>(value))
+  {
+  }
+
+  // Get the name of the IO control command.
+  int name() const
+  {
+    return static_cast<int>(ASIO_OS_DEF(FIONREAD));
+  }
+
+  // Set the value of the I/O control command.
+  void set(std::size_t value)
+  {
+    value_ = static_cast<detail::ioctl_arg_type>(value);
+  }
+
+  // Get the current value of the I/O control command.
+  std::size_t get() const
+  {
+    return static_cast<std::size_t>(value_);
+  }
+
+  // Get the address of the command data.
+  detail::ioctl_arg_type* data()
+  {
+    return &value_;
+  }
+
+  // Get the address of the command data.
+  const detail::ioctl_arg_type* data() const
+  {
+    return &value_;
+  }
+
+private:
+  detail::ioctl_arg_type value_;
+};
+
+} // namespace io_control
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_IO_CONTROL_HPP
diff --git a/asio-1.10.6/include/asio/detail/limits.hpp b/asio-1.10.6/include/asio/detail/limits.hpp
new file mode 100644
index 0000000..e20b8a3
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/limits.hpp
@@ -0,0 +1,19 @@
+//
+// detail/limits.hpp
+// ~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_LIMITS_HPP
+#define ASIO_DETAIL_LIMITS_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <limits>
+
+#endif // ASIO_DETAIL_LIMITS_HPP
diff --git a/asio-1.10.6/include/asio/detail/local_free_on_block_exit.hpp b/asio-1.10.6/include/asio/detail/local_free_on_block_exit.hpp
new file mode 100644
index 0000000..bfca59e
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/local_free_on_block_exit.hpp
@@ -0,0 +1,18 @@
+//
+// detail/local_free_on_block_exit.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP
+#define ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#endif // ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP
diff --git a/asio-1.10.6/include/asio/detail/mutex.hpp b/asio-1.10.6/include/asio/detail/mutex.hpp
new file mode 100644
index 0000000..e744279
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/mutex.hpp
@@ -0,0 +1,35 @@
+//
+// detail/mutex.hpp
+// ~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_MUTEX_HPP
+#define ASIO_DETAIL_MUTEX_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if   defined(ASIO_HAS_PTHREADS)
+# include "asio/detail/posix_mutex.hpp"
+#else
+# include "asio/detail/std_mutex.hpp"
+#endif
+
+namespace asio {
+namespace detail {
+
+#if   defined(ASIO_HAS_PTHREADS)
+typedef posix_mutex mutex;
+#else
+typedef std_mutex mutex;
+#endif
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_MUTEX_HPP
diff --git a/asio-1.10.6/include/asio/detail/noncopyable.hpp b/asio-1.10.6/include/asio/detail/noncopyable.hpp
new file mode 100644
index 0000000..1e03bca
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/noncopyable.hpp
@@ -0,0 +1,40 @@
+//
+// detail/noncopyable.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_NONCOPYABLE_HPP
+#define ASIO_DETAIL_NONCOPYABLE_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class noncopyable
+{
+protected:
+  noncopyable() {}
+  ~noncopyable() {}
+private:
+  noncopyable(const noncopyable&);
+  const noncopyable& operator=(const noncopyable&);
+};
+
+} // namespace detail
+
+using asio::detail::noncopyable;
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_NONCOPYABLE_HPP
diff --git a/asio-1.10.6/include/asio/detail/null_fenced_block.hpp b/asio-1.10.6/include/asio/detail/null_fenced_block.hpp
new file mode 100644
index 0000000..e3dad8d
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/null_fenced_block.hpp
@@ -0,0 +1,42 @@
+//
+// detail/null_fenced_block.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
+#define ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class null_fenced_block
+  : private noncopyable
+{
+public:
+  enum half_or_full_t { half, full };
+
+  // Constructor.
+  explicit null_fenced_block(half_or_full_t)
+  {
+  }
+
+  // Destructor.
+  ~null_fenced_block()
+  {
+  }
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
diff --git a/asio-1.10.6/include/asio/detail/op_queue.hpp b/asio-1.10.6/include/asio/detail/op_queue.hpp
new file mode 100644
index 0000000..ea67063
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/op_queue.hpp
@@ -0,0 +1,153 @@
+//
+// detail/op_queue.hpp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_OP_QUEUE_HPP
+#define ASIO_DETAIL_OP_QUEUE_HPP
+
+
+#include "asio/detail/noncopyable.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Operation>
+class op_queue;
+
+class op_queue_access
+{
+public:
+  template <typename Operation>
+  static Operation* next(Operation* o)
+  {
+    return static_cast<Operation*>(o->next_);
+  }
+
+  template <typename Operation1, typename Operation2>
+  static void next(Operation1*& o1, Operation2* o2)
+  {
+    o1->next_ = o2;
+  }
+
+  template <typename Operation>
+  static void destroy(Operation* o)
+  {
+    o->destroy();
+  }
+
+  template <typename Operation>
+  static Operation*& front(op_queue<Operation>& q)
+  {
+    return q.front_;
+  }
+
+  template <typename Operation>
+  static Operation*& back(op_queue<Operation>& q)
+  {
+    return q.back_;
+  }
+};
+
+template <typename Operation>
+class op_queue
+  : private noncopyable
+{
+public:
+  // Constructor.
+  op_queue()
+    : front_(0),
+      back_(0)
+  {
+  }
+
+  // Destructor destroys all operations.
+  ~op_queue()
+  {
+    while (Operation* op = front_)
+    {
+      pop();
+      op_queue_access::destroy(op);
+    }
+  }
+
+  // Get the operation at the front of the queue.
+  Operation* front()
+  {
+    return front_;
+  }
+
+  // Pop an operation from the front of the queue.
+  void pop()
+  {
+    if (front_)
+    {
+      Operation* tmp = front_;
+      front_ = op_queue_access::next(front_);
+      if (front_ == 0)
+        back_ = 0;
+      op_queue_access::next(tmp, static_cast<Operation*>(0));
+    }
+  }
+
+  // Push an operation on to the back of the queue.
+  void push(Operation* h)
+  {
+    op_queue_access::next(h, static_cast<Operation*>(0));
+    if (back_)
+    {
+      op_queue_access::next(back_, h);
+      back_ = h;
+    }
+    else
+    {
+      front_ = back_ = h;
+    }
+  }
+
+  // Push all operations from another queue on to the back of the queue. The
+  // source queue may contain operations of a derived type.
+  template <typename OtherOperation>
+  void push(op_queue<OtherOperation>& q)
+  {
+    if (Operation* other_front = op_queue_access::front(q))
+    {
+      if (back_)
+        op_queue_access::next(back_, other_front);
+      else
+        front_ = other_front;
+      back_ = op_queue_access::back(q);
+      op_queue_access::front(q) = 0;
+      op_queue_access::back(q) = 0;
+    }
+  }
+
+  // Whether the queue is empty.
+  bool empty() const
+  {
+    return front_ == 0;
+  }
+
+private:
+  friend class op_queue_access;
+
+  // The front of the queue.
+  Operation* front_;
+
+  // The back of the queue.
+  Operation* back_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_OP_QUEUE_HPP
diff --git a/asio-1.10.6/include/asio/detail/operation.hpp b/asio-1.10.6/include/asio/detail/operation.hpp
new file mode 100644
index 0000000..2ca44ad
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/operation.hpp
@@ -0,0 +1,27 @@
+//
+// detail/operation.hpp
+// ~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_OPERATION_HPP
+#define ASIO_DETAIL_OPERATION_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include "asio/detail/task_io_service_operation.hpp"
+
+namespace asio {
+namespace detail {
+
+typedef task_io_service_operation operation;
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_OPERATION_HPP
diff --git a/asio-1.10.6/include/asio/detail/pipe_select_interrupter.hpp b/asio-1.10.6/include/asio/detail/pipe_select_interrupter.hpp
new file mode 100644
index 0000000..3dad932
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/pipe_select_interrupter.hpp
@@ -0,0 +1,74 @@
+//
+// detail/pipe_select_interrupter.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP
+#define ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class pipe_select_interrupter
+{
+public:
+  // Constructor.
+  ASIO_DECL pipe_select_interrupter();
+
+  // Destructor.
+  ASIO_DECL ~pipe_select_interrupter();
+
+  // Recreate the interrupter's descriptors. Used after a fork.
+  ASIO_DECL void recreate();
+
+  // Interrupt the select call.
+  ASIO_DECL void interrupt();
+
+  // Reset the select interrupt. Returns true if the call was interrupted.
+  ASIO_DECL bool reset();
+
+  // Get the read descriptor to be passed to select.
+  int read_descriptor() const
+  {
+    return read_descriptor_;
+  }
+
+private:
+  // Open the descriptors. Throws on error.
+  ASIO_DECL void open_descriptors();
+
+  // Close the descriptors.
+  ASIO_DECL void close_descriptors();
+
+  // The read end of a connection used to interrupt the select call. This file
+  // descriptor is passed to select such that when it is time to stop, a single
+  // byte will be written on the other end of the connection and this
+  // descriptor will become readable.
+  int read_descriptor_;
+
+  // The write end of a connection used to interrupt the select call. A single
+  // byte may be written to this to wake up the select which is waiting for the
+  // other end to become readable.
+  int write_descriptor_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/pipe_select_interrupter.ipp"
+
+
+#endif // ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP
diff --git a/asio-1.10.6/include/asio/detail/pop_options.hpp b/asio-1.10.6/include/asio/detail/pop_options.hpp
new file mode 100644
index 0000000..e8b941e
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/pop_options.hpp
@@ -0,0 +1,45 @@
+//
+// detail/pop_options.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// No header guard
+
+#if defined(__COMO__)
+
+// Comeau C++
+
+#elif defined(__DMC__)
+
+// Digital Mars C++
+
+#elif defined(__INTEL_COMPILER) || defined(__ICL)    || defined(__ICC) || defined(__ECC)
+
+// Intel C++
+
+# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
+#  pragma GCC visibility pop
+# endif // (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
+
+#else
+
+// Clang
+
+# if defined(__OBJC__)
+#  if !defined(__APPLE_CC__) || (__APPLE_CC__ <= 1)
+#   if defined(ASIO_OBJC_WORKAROUND)
+#    undef Protocol
+#    undef id
+#    undef ASIO_OBJC_WORKAROUND
+#   endif
+#  endif
+# endif
+
+#  pragma GCC visibility pop
+
+#endif
diff --git a/asio-1.10.6/include/asio/detail/posix_event.hpp b/asio-1.10.6/include/asio/detail/posix_event.hpp
new file mode 100644
index 0000000..2e25e35
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/posix_event.hpp
@@ -0,0 +1,121 @@
+//
+// detail/posix_event.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_POSIX_EVENT_HPP
+#define ASIO_DETAIL_POSIX_EVENT_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include <pthread.h>
+#include "asio/detail/assert.hpp"
+#include "asio/detail/noncopyable.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class posix_event
+  : private noncopyable
+{
+public:
+  // Constructor.
+  ASIO_DECL posix_event();
+
+  // Destructor.
+  ~posix_event()
+  {
+    ::pthread_cond_destroy(&cond_);
+  }
+
+  // Signal the event. (Retained for backward compatibility.)
+  template <typename Lock>
+  void signal(Lock& lock)
+  {
+    this->signal_all(lock);
+  }
+
+  // Signal all waiters.
+  template <typename Lock>
+  void signal_all(Lock& lock)
+  {
+    ASIO_ASSERT(lock.locked());
+    (void)lock;
+    state_ |= 1;
+    ::pthread_cond_broadcast(&cond_); // Ignore EINVAL.
+  }
+
+  // Unlock the mutex and signal one waiter.
+  template <typename Lock>
+  void unlock_and_signal_one(Lock& lock)
+  {
+    ASIO_ASSERT(lock.locked());
+    state_ |= 1;
+    bool have_waiters = (state_ > 1);
+    lock.unlock();
+    if (have_waiters)
+      ::pthread_cond_signal(&cond_); // Ignore EINVAL.
+  }
+
+  // If there's a waiter, unlock the mutex and signal it.
+  template <typename Lock>
+  bool maybe_unlock_and_signal_one(Lock& lock)
+  {
+    ASIO_ASSERT(lock.locked());
+    state_ |= 1;
+    if (state_ > 1)
+    {
+      lock.unlock();
+      ::pthread_cond_signal(&cond_); // Ignore EINVAL.
+      return true;
+    }
+    return false;
+  }
+
+  // Reset the event.
+  template <typename Lock>
+  void clear(Lock& lock)
+  {
+    ASIO_ASSERT(lock.locked());
+    (void)lock;
+    state_ &= ~std::size_t(1);
+  }
+
+  // Wait for the event to become signalled.
+  template <typename Lock>
+  void wait(Lock& lock)
+  {
+    ASIO_ASSERT(lock.locked());
+    while ((state_ & 1) == 0)
+    {
+      state_ += 2;
+      ::pthread_cond_wait(&cond_, &lock.mutex().mutex_); // Ignore EINVAL.
+      state_ -= 2;
+    }
+  }
+
+private:
+  ::pthread_cond_t cond_;
+  std::size_t state_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/posix_event.ipp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_POSIX_EVENT_HPP
diff --git a/asio-1.10.6/include/asio/detail/posix_fd_set_adapter.hpp b/asio-1.10.6/include/asio/detail/posix_fd_set_adapter.hpp
new file mode 100644
index 0000000..9240ff6
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/posix_fd_set_adapter.hpp
@@ -0,0 +1,111 @@
+//
+// detail/posix_fd_set_adapter.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP
+#define ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include <cstring>
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/reactor_op_queue.hpp"
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+// Adapts the FD_SET type to meet the Descriptor_Set concept's requirements.
+class posix_fd_set_adapter : noncopyable
+{
+public:
+  posix_fd_set_adapter()
+    : max_descriptor_(invalid_socket)
+  {
+    using namespace std; // Needed for memset on Solaris.
+    FD_ZERO(&fd_set_);
+  }
+
+  void reset()
+  {
+    using namespace std; // Needed for memset on Solaris.
+    FD_ZERO(&fd_set_);
+  }
+
+  bool set(socket_type descriptor)
+  {
+    if (descriptor < (socket_type)FD_SETSIZE)
+    {
+      if (max_descriptor_ == invalid_socket || descriptor > max_descriptor_)
+        max_descriptor_ = descriptor;
+      FD_SET(descriptor, &fd_set_);
+      return true;
+    }
+    return false;
+  }
+
+  void set(reactor_op_queue<socket_type>& operations, op_queue<operation>& ops)
+  {
+    reactor_op_queue<socket_type>::iterator i = operations.begin();
+    while (i != operations.end())
+    {
+      reactor_op_queue<socket_type>::iterator op_iter = i++;
+      if (!set(op_iter->first))
+      {
+        asio::error_code ec(error::fd_set_failure);
+        operations.cancel_operations(op_iter, ops, ec);
+      }
+    }
+  }
+
+  bool is_set(socket_type descriptor) const
+  {
+    return FD_ISSET(descriptor, &fd_set_) != 0;
+  }
+
+  operator fd_set*()
+  {
+    return &fd_set_;
+  }
+
+  socket_type max_descriptor() const
+  {
+    return max_descriptor_;
+  }
+
+  void perform(reactor_op_queue<socket_type>& operations,
+      op_queue<operation>& ops) const
+  {
+    reactor_op_queue<socket_type>::iterator i = operations.begin();
+    while (i != operations.end())
+    {
+      reactor_op_queue<socket_type>::iterator op_iter = i++;
+      if (is_set(op_iter->first))
+        operations.perform_operations(op_iter, ops);
+    }
+  }
+
+private:
+  mutable fd_set fd_set_;
+  socket_type max_descriptor_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+       // && !defined(__CYGWIN__)
+       // && !defined(ASIO_WINDOWS_RUNTIME)
+
+#endif // ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP
diff --git a/asio-1.10.6/include/asio/detail/posix_mutex.hpp b/asio-1.10.6/include/asio/detail/posix_mutex.hpp
new file mode 100644
index 0000000..bd69d58
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/posix_mutex.hpp
@@ -0,0 +1,71 @@
+//
+// detail/posix_mutex.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_POSIX_MUTEX_HPP
+#define ASIO_DETAIL_POSIX_MUTEX_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include <pthread.h>
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/scoped_lock.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class posix_event;
+
+class posix_mutex
+  : private noncopyable
+{
+public:
+  typedef asio::detail::scoped_lock<posix_mutex> scoped_lock;
+
+  // Constructor.
+  ASIO_DECL posix_mutex();
+
+  // Destructor.
+  ~posix_mutex()
+  {
+    ::pthread_mutex_destroy(&mutex_); // Ignore EBUSY.
+  }
+
+  // Lock the mutex.
+  void lock()
+  {
+    (void)::pthread_mutex_lock(&mutex_); // Ignore EINVAL.
+  }
+
+  // Unlock the mutex.
+  void unlock()
+  {
+    (void)::pthread_mutex_unlock(&mutex_); // Ignore EINVAL.
+  }
+
+private:
+  friend class posix_event;
+  ::pthread_mutex_t mutex_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/posix_mutex.ipp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_POSIX_MUTEX_HPP
diff --git a/asio-1.10.6/include/asio/detail/posix_signal_blocker.hpp b/asio-1.10.6/include/asio/detail/posix_signal_blocker.hpp
new file mode 100644
index 0000000..6c3956f
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/posix_signal_blocker.hpp
@@ -0,0 +1,82 @@
+//
+// detail/posix_signal_blocker.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_POSIX_SIGNAL_BLOCKER_HPP
+#define ASIO_DETAIL_POSIX_SIGNAL_BLOCKER_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include <csignal>
+#include <pthread.h>
+#include <signal.h>
+#include "asio/detail/noncopyable.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class posix_signal_blocker
+  : private noncopyable
+{
+public:
+  // Constructor blocks all signals for the calling thread.
+  posix_signal_blocker()
+    : blocked_(false)
+  {
+    sigset_t new_mask;
+    sigfillset(&new_mask);
+    blocked_ = (pthread_sigmask(SIG_BLOCK, &new_mask, &old_mask_) == 0);
+  }
+
+  // Destructor restores the previous signal mask.
+  ~posix_signal_blocker()
+  {
+    if (blocked_)
+      pthread_sigmask(SIG_SETMASK, &old_mask_, 0);
+  }
+
+  // Block all signals for the calling thread.
+  void block()
+  {
+    if (!blocked_)
+    {
+      sigset_t new_mask;
+      sigfillset(&new_mask);
+      blocked_ = (pthread_sigmask(SIG_BLOCK, &new_mask, &old_mask_) == 0);
+    }
+  }
+
+  // Restore the previous signal mask.
+  void unblock()
+  {
+    if (blocked_)
+      blocked_ = (pthread_sigmask(SIG_SETMASK, &old_mask_, 0) != 0);
+  }
+
+private:
+  // Have signals been blocked.
+  bool blocked_;
+
+  // The previous signal mask.
+  sigset_t old_mask_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_POSIX_SIGNAL_BLOCKER_HPP
diff --git a/asio-1.10.6/include/asio/detail/posix_thread.hpp b/asio-1.10.6/include/asio/detail/posix_thread.hpp
new file mode 100644
index 0000000..046b224
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/posix_thread.hpp
@@ -0,0 +1,100 @@
+//
+// detail/posix_thread.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_POSIX_THREAD_HPP
+#define ASIO_DETAIL_POSIX_THREAD_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include <pthread.h>
+#include "asio/detail/noncopyable.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+extern "C"
+{
+  ASIO_DECL void* asio_detail_posix_thread_function(void* arg);
+}
+
+class posix_thread
+  : private noncopyable
+{
+public:
+  // Constructor.
+  template <typename Function>
+  posix_thread(Function f, unsigned int = 0)
+    : joined_(false)
+  {
+    start_thread(new func<Function>(f));
+  }
+
+  // Destructor.
+  ASIO_DECL ~posix_thread();
+
+  // Wait for the thread to exit.
+  ASIO_DECL void join();
+
+private:
+  friend void* asio_detail_posix_thread_function(void* arg);
+
+  class func_base
+  {
+  public:
+    virtual ~func_base() {}
+    virtual void run() = 0;
+  };
+
+  struct auto_func_base_ptr
+  {
+    func_base* ptr;
+    ~auto_func_base_ptr() { delete ptr; }
+  };
+
+  template <typename Function>
+  class func
+    : public func_base
+  {
+  public:
+    func(Function f)
+      : f_(f)
+    {
+    }
+
+    virtual void run()
+    {
+      f_();
+    }
+
+  private:
+    Function f_;
+  };
+
+  ASIO_DECL void start_thread(func_base* arg);
+
+  ::pthread_t thread_;
+  bool joined_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/posix_thread.ipp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_POSIX_THREAD_HPP
diff --git a/asio-1.10.6/include/asio/detail/posix_tss_ptr.hpp b/asio-1.10.6/include/asio/detail/posix_tss_ptr.hpp
new file mode 100644
index 0000000..57fdac2
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/posix_tss_ptr.hpp
@@ -0,0 +1,74 @@
+//
+// detail/posix_tss_ptr.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_POSIX_TSS_PTR_HPP
+#define ASIO_DETAIL_POSIX_TSS_PTR_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_PTHREADS)
+
+#include <pthread.h>
+#include "asio/detail/noncopyable.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+// Helper function to create thread-specific storage.
+ASIO_DECL void posix_tss_ptr_create(pthread_key_t& key);
+
+template <typename T>
+class posix_tss_ptr
+  : private noncopyable
+{
+public:
+  // Constructor.
+  posix_tss_ptr()
+  {
+    posix_tss_ptr_create(tss_key_);
+  }
+
+  // Destructor.
+  ~posix_tss_ptr()
+  {
+    ::pthread_key_delete(tss_key_);
+  }
+
+  // Get the value.
+  operator T*() const
+  {
+    return static_cast<T*>(::pthread_getspecific(tss_key_));
+  }
+
+  // Set the value.
+  void operator=(T* value)
+  {
+    ::pthread_setspecific(tss_key_, value);
+  }
+
+private:
+  // Thread-specific storage to allow unlocked access to determine whether a
+  // thread is a member of the pool.
+  pthread_key_t tss_key_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/posix_tss_ptr.ipp"
+
+#endif // defined(ASIO_HAS_PTHREADS)
+
+#endif // ASIO_DETAIL_POSIX_TSS_PTR_HPP
diff --git a/asio-1.10.6/include/asio/detail/push_options.hpp b/asio-1.10.6/include/asio/detail/push_options.hpp
new file mode 100644
index 0000000..6e2d6fa
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/push_options.hpp
@@ -0,0 +1,47 @@
+//
+// detail/push_options.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// No header guard
+
+#if defined(__COMO__)
+
+// Comeau C++
+
+#elif defined(__DMC__)
+
+// Digital Mars C++
+
+#elif defined(__INTEL_COMPILER) || defined(__ICL)    || defined(__ICC) || defined(__ECC)
+
+// Intel C++
+
+# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
+#  pragma GCC visibility push (default)
+# endif // (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
+
+#else
+
+// Clang
+
+# if defined(__OBJC__)
+#  if !defined(__APPLE_CC__) || (__APPLE_CC__ <= 1)
+#   if !defined(ASIO_DISABLE_OBJC_WORKAROUND)
+#    if !defined(Protocol) && !defined(id)
+#     define Protocol cpp_Protocol
+#     define id cpp_id
+#     define ASIO_OBJC_WORKAROUND
+#    endif
+#   endif
+#  endif
+# endif
+
+#  pragma GCC visibility push (default)
+
+#endif
diff --git a/asio-1.10.6/include/asio/detail/reactive_null_buffers_op.hpp b/asio-1.10.6/include/asio/detail/reactive_null_buffers_op.hpp
new file mode 100644
index 0000000..f87010a
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_null_buffers_op.hpp
@@ -0,0 +1,85 @@
+//
+// detail/reactive_null_buffers_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_NULL_BUFFERS_OP_HPP
+#define ASIO_DETAIL_REACTIVE_NULL_BUFFERS_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/reactor_op.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Handler>
+class reactive_null_buffers_op : public reactor_op
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(reactive_null_buffers_op);
+
+  reactive_null_buffers_op(Handler& handler)
+    : reactor_op(&reactive_null_buffers_op::do_perform,
+        &reactive_null_buffers_op::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static bool do_perform(reactor_op*)
+  {
+    return true;
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    reactive_null_buffers_op* o(static_cast<reactive_null_buffers_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    ASIO_HANDLER_COMPLETION((o));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder2<Handler, asio::error_code, std::size_t>
+      handler(o->handler_, o->ec_, o->bytes_transferred_);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
+      asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTIVE_NULL_BUFFERS_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_accept_op.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_accept_op.hpp
new file mode 100644
index 0000000..8f4c609
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_accept_op.hpp
@@ -0,0 +1,133 @@
+//
+// detail/reactive_socket_accept_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_holder.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Socket, typename Protocol>
+class reactive_socket_accept_op_base : public reactor_op
+{
+public:
+  reactive_socket_accept_op_base(socket_type socket,
+      socket_ops::state_type state, Socket& peer, const Protocol& protocol,
+      typename Protocol::endpoint* peer_endpoint, func_type complete_func)
+    : reactor_op(&reactive_socket_accept_op_base::do_perform, complete_func),
+      socket_(socket),
+      state_(state),
+      peer_(peer),
+      protocol_(protocol),
+      peer_endpoint_(peer_endpoint)
+  {
+  }
+
+  static bool do_perform(reactor_op* base)
+  {
+    reactive_socket_accept_op_base* o(
+        static_cast<reactive_socket_accept_op_base*>(base));
+
+    std::size_t addrlen = o->peer_endpoint_ ? o->peer_endpoint_->capacity() : 0;
+    socket_type new_socket = invalid_socket;
+    bool result = socket_ops::non_blocking_accept(o->socket_,
+          o->state_, o->peer_endpoint_ ? o->peer_endpoint_->data() : 0,
+          o->peer_endpoint_ ? &addrlen : 0, o->ec_, new_socket);
+
+    // On success, assign new connection to peer socket object.
+    if (new_socket != invalid_socket)
+    {
+      socket_holder new_socket_holder(new_socket);
+      if (o->peer_endpoint_)
+        o->peer_endpoint_->resize(addrlen);
+      if (!o->peer_.assign(o->protocol_, new_socket, o->ec_))
+        new_socket_holder.release();
+    }
+
+    return result;
+  }
+
+private:
+  socket_type socket_;
+  socket_ops::state_type state_;
+  Socket& peer_;
+  Protocol protocol_;
+  typename Protocol::endpoint* peer_endpoint_;
+};
+
+template <typename Socket, typename Protocol, typename Handler>
+class reactive_socket_accept_op :
+  public reactive_socket_accept_op_base<Socket, Protocol>
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(reactive_socket_accept_op);
+
+  reactive_socket_accept_op(socket_type socket,
+      socket_ops::state_type state, Socket& peer, const Protocol& protocol,
+      typename Protocol::endpoint* peer_endpoint, Handler& handler)
+    : reactive_socket_accept_op_base<Socket, Protocol>(socket, state, peer,
+        protocol, peer_endpoint, &reactive_socket_accept_op::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    reactive_socket_accept_op* o(static_cast<reactive_socket_accept_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    ASIO_HANDLER_COMPLETION((o));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder1<Handler, asio::error_code>
+      handler(o->handler_, o->ec_);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
+      asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_connect_op.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_connect_op.hpp
new file mode 100644
index 0000000..ccc94eb
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_connect_op.hpp
@@ -0,0 +1,103 @@
+//
+// detail/reactive_socket_connect_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class reactive_socket_connect_op_base : public reactor_op
+{
+public:
+  reactive_socket_connect_op_base(socket_type socket, func_type complete_func)
+    : reactor_op(&reactive_socket_connect_op_base::do_perform, complete_func),
+      socket_(socket)
+  {
+  }
+
+  static bool do_perform(reactor_op* base)
+  {
+    reactive_socket_connect_op_base* o(
+        static_cast<reactive_socket_connect_op_base*>(base));
+
+    return socket_ops::non_blocking_connect(o->socket_, o->ec_);
+  }
+
+private:
+  socket_type socket_;
+};
+
+template <typename Handler>
+class reactive_socket_connect_op : public reactive_socket_connect_op_base
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(reactive_socket_connect_op);
+
+  reactive_socket_connect_op(socket_type socket, Handler& handler)
+    : reactive_socket_connect_op_base(socket,
+        &reactive_socket_connect_op::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    reactive_socket_connect_op* o
+      (static_cast<reactive_socket_connect_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    ASIO_HANDLER_COMPLETION((o));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder1<Handler, asio::error_code>
+      handler(o->handler_, o->ec_);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
+      asio_handler_invoke_helpers::invoke(handler, handler);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_recv_op.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_recv_op.hpp
new file mode 100644
index 0000000..f49aae0
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_recv_op.hpp
@@ -0,0 +1,120 @@
+//
+// detail/reactive_socket_recv_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename MutableBufferSequence>
+class reactive_socket_recv_op_base : public reactor_op
+{
+public:
+  reactive_socket_recv_op_base(socket_type socket,
+      socket_ops::state_type state, const MutableBufferSequence& buffers,
+      socket_base::message_flags flags, func_type complete_func)
+    : reactor_op(&reactive_socket_recv_op_base::do_perform, complete_func),
+      socket_(socket),
+      state_(state),
+      buffers_(buffers),
+      flags_(flags)
+  {
+  }
+
+  static bool do_perform(reactor_op* base)
+  {
+    reactive_socket_recv_op_base* o(
+        static_cast<reactive_socket_recv_op_base*>(base));
+
+    buffer_sequence_adapter<asio::mutable_buffer,
+        MutableBufferSequence> bufs(o->buffers_);
+
+    return socket_ops::non_blocking_recv(o->socket_,
+        bufs.buffers(), bufs.count(), o->flags_,
+        (o->state_ & socket_ops::stream_oriented) != 0,
+        o->ec_, o->bytes_transferred_);
+  }
+
+private:
+  socket_type socket_;
+  socket_ops::state_type state_;
+  MutableBufferSequence buffers_;
+  socket_base::message_flags flags_;
+};
+
+template <typename MutableBufferSequence, typename Handler>
+class reactive_socket_recv_op :
+  public reactive_socket_recv_op_base<MutableBufferSequence>
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(reactive_socket_recv_op);
+
+  reactive_socket_recv_op(socket_type socket,
+      socket_ops::state_type state, const MutableBufferSequence& buffers,
+      socket_base::message_flags flags, Handler& handler)
+    : reactive_socket_recv_op_base<MutableBufferSequence>(socket, state,
+        buffers, flags, &reactive_socket_recv_op::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    reactive_socket_recv_op* o(static_cast<reactive_socket_recv_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    ASIO_HANDLER_COMPLETION((o));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder2<Handler, asio::error_code, std::size_t>
+      handler(o->handler_, o->ec_, o->bytes_transferred_);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
+      asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_recvfrom_op.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_recvfrom_op.hpp
new file mode 100644
index 0000000..0b06619
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_recvfrom_op.hpp
@@ -0,0 +1,130 @@
+//
+// detail/reactive_socket_recvfrom_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_RECVFROM_OP_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_RECVFROM_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename MutableBufferSequence, typename Endpoint>
+class reactive_socket_recvfrom_op_base : public reactor_op
+{
+public:
+  reactive_socket_recvfrom_op_base(socket_type socket, int protocol_type,
+      const MutableBufferSequence& buffers, Endpoint& endpoint,
+      socket_base::message_flags flags, func_type complete_func)
+    : reactor_op(&reactive_socket_recvfrom_op_base::do_perform, complete_func),
+      socket_(socket),
+      protocol_type_(protocol_type),
+      buffers_(buffers),
+      sender_endpoint_(endpoint),
+      flags_(flags)
+  {
+  }
+
+  static bool do_perform(reactor_op* base)
+  {
+    reactive_socket_recvfrom_op_base* o(
+        static_cast<reactive_socket_recvfrom_op_base*>(base));
+
+    buffer_sequence_adapter<asio::mutable_buffer,
+        MutableBufferSequence> bufs(o->buffers_);
+
+    std::size_t addr_len = o->sender_endpoint_.capacity();
+    bool result = socket_ops::non_blocking_recvfrom(o->socket_,
+        bufs.buffers(), bufs.count(), o->flags_,
+        o->sender_endpoint_.data(), &addr_len,
+        o->ec_, o->bytes_transferred_);
+
+    if (result && !o->ec_)
+      o->sender_endpoint_.resize(addr_len);
+
+    return result;
+  }
+
+private:
+  socket_type socket_;
+  int protocol_type_;
+  MutableBufferSequence buffers_;
+  Endpoint& sender_endpoint_;
+  socket_base::message_flags flags_;
+};
+
+template <typename MutableBufferSequence, typename Endpoint, typename Handler>
+class reactive_socket_recvfrom_op :
+  public reactive_socket_recvfrom_op_base<MutableBufferSequence, Endpoint>
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(reactive_socket_recvfrom_op);
+
+  reactive_socket_recvfrom_op(socket_type socket, int protocol_type,
+      const MutableBufferSequence& buffers, Endpoint& endpoint,
+      socket_base::message_flags flags, Handler& handler)
+    : reactive_socket_recvfrom_op_base<MutableBufferSequence, Endpoint>(
+        socket, protocol_type, buffers, endpoint, flags,
+        &reactive_socket_recvfrom_op::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    reactive_socket_recvfrom_op* o(
+        static_cast<reactive_socket_recvfrom_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    ASIO_HANDLER_COMPLETION((o));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder2<Handler, asio::error_code, std::size_t>
+      handler(o->handler_, o->ec_, o->bytes_transferred_);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
+      asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_RECVFROM_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_recvmsg_op.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_recvmsg_op.hpp
new file mode 100644
index 0000000..cd30b47
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_recvmsg_op.hpp
@@ -0,0 +1,122 @@
+//
+// detail/reactive_socket_recvmsg_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_RECVMSG_OP_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_RECVMSG_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_ops.hpp"
+#include "asio/socket_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename MutableBufferSequence>
+class reactive_socket_recvmsg_op_base : public reactor_op
+{
+public:
+  reactive_socket_recvmsg_op_base(socket_type socket,
+      const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
+      socket_base::message_flags& out_flags, func_type complete_func)
+    : reactor_op(&reactive_socket_recvmsg_op_base::do_perform, complete_func),
+      socket_(socket),
+      buffers_(buffers),
+      in_flags_(in_flags),
+      out_flags_(out_flags)
+  {
+  }
+
+  static bool do_perform(reactor_op* base)
+  {
+    reactive_socket_recvmsg_op_base* o(
+        static_cast<reactive_socket_recvmsg_op_base*>(base));
+
+    buffer_sequence_adapter<asio::mutable_buffer,
+        MutableBufferSequence> bufs(o->buffers_);
+
+    return socket_ops::non_blocking_recvmsg(o->socket_,
+        bufs.buffers(), bufs.count(),
+        o->in_flags_, o->out_flags_,
+        o->ec_, o->bytes_transferred_);
+  }
+
+private:
+  socket_type socket_;
+  MutableBufferSequence buffers_;
+  socket_base::message_flags in_flags_;
+  socket_base::message_flags& out_flags_;
+};
+
+template <typename MutableBufferSequence, typename Handler>
+class reactive_socket_recvmsg_op :
+  public reactive_socket_recvmsg_op_base<MutableBufferSequence>
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(reactive_socket_recvmsg_op);
+
+  reactive_socket_recvmsg_op(socket_type socket,
+      const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
+      socket_base::message_flags& out_flags, Handler& handler)
+    : reactive_socket_recvmsg_op_base<MutableBufferSequence>(socket, buffers,
+        in_flags, out_flags, &reactive_socket_recvmsg_op::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    reactive_socket_recvmsg_op* o(
+        static_cast<reactive_socket_recvmsg_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    ASIO_HANDLER_COMPLETION((o));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder2<Handler, asio::error_code, std::size_t>
+      handler(o->handler_, o->ec_, o->bytes_transferred_);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
+      asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_RECVMSG_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_send_op.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_send_op.hpp
new file mode 100644
index 0000000..28cbf51
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_send_op.hpp
@@ -0,0 +1,117 @@
+//
+// detail/reactive_socket_send_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_SEND_OP_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_SEND_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename ConstBufferSequence>
+class reactive_socket_send_op_base : public reactor_op
+{
+public:
+  reactive_socket_send_op_base(socket_type socket,
+      const ConstBufferSequence& buffers,
+      socket_base::message_flags flags, func_type complete_func)
+    : reactor_op(&reactive_socket_send_op_base::do_perform, complete_func),
+      socket_(socket),
+      buffers_(buffers),
+      flags_(flags)
+  {
+  }
+
+  static bool do_perform(reactor_op* base)
+  {
+    reactive_socket_send_op_base* o(
+        static_cast<reactive_socket_send_op_base*>(base));
+
+    buffer_sequence_adapter<asio::const_buffer,
+        ConstBufferSequence> bufs(o->buffers_);
+
+    return socket_ops::non_blocking_send(o->socket_,
+          bufs.buffers(), bufs.count(), o->flags_,
+          o->ec_, o->bytes_transferred_);
+  }
+
+private:
+  socket_type socket_;
+  ConstBufferSequence buffers_;
+  socket_base::message_flags flags_;
+};
+
+template <typename ConstBufferSequence, typename Handler>
+class reactive_socket_send_op :
+  public reactive_socket_send_op_base<ConstBufferSequence>
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(reactive_socket_send_op);
+
+  reactive_socket_send_op(socket_type socket,
+      const ConstBufferSequence& buffers,
+      socket_base::message_flags flags, Handler& handler)
+    : reactive_socket_send_op_base<ConstBufferSequence>(socket,
+        buffers, flags, &reactive_socket_send_op::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    reactive_socket_send_op* o(static_cast<reactive_socket_send_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    ASIO_HANDLER_COMPLETION((o));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder2<Handler, asio::error_code, std::size_t>
+      handler(o->handler_, o->ec_, o->bytes_transferred_);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
+      asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_SEND_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_sendto_op.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_sendto_op.hpp
new file mode 100644
index 0000000..7621c71
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_sendto_op.hpp
@@ -0,0 +1,120 @@
+//
+// detail/reactive_socket_sendto_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_SENDTO_OP_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_SENDTO_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename ConstBufferSequence, typename Endpoint>
+class reactive_socket_sendto_op_base : public reactor_op
+{
+public:
+  reactive_socket_sendto_op_base(socket_type socket,
+      const ConstBufferSequence& buffers, const Endpoint& endpoint,
+      socket_base::message_flags flags, func_type complete_func)
+    : reactor_op(&reactive_socket_sendto_op_base::do_perform, complete_func),
+      socket_(socket),
+      buffers_(buffers),
+      destination_(endpoint),
+      flags_(flags)
+  {
+  }
+
+  static bool do_perform(reactor_op* base)
+  {
+    reactive_socket_sendto_op_base* o(
+        static_cast<reactive_socket_sendto_op_base*>(base));
+
+    buffer_sequence_adapter<asio::const_buffer,
+        ConstBufferSequence> bufs(o->buffers_);
+
+    return socket_ops::non_blocking_sendto(o->socket_,
+          bufs.buffers(), bufs.count(), o->flags_,
+          o->destination_.data(), o->destination_.size(),
+          o->ec_, o->bytes_transferred_);
+  }
+
+private:
+  socket_type socket_;
+  ConstBufferSequence buffers_;
+  Endpoint destination_;
+  socket_base::message_flags flags_;
+};
+
+template <typename ConstBufferSequence, typename Endpoint, typename Handler>
+class reactive_socket_sendto_op :
+  public reactive_socket_sendto_op_base<ConstBufferSequence, Endpoint>
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(reactive_socket_sendto_op);
+
+  reactive_socket_sendto_op(socket_type socket,
+      const ConstBufferSequence& buffers, const Endpoint& endpoint,
+      socket_base::message_flags flags, Handler& handler)
+    : reactive_socket_sendto_op_base<ConstBufferSequence, Endpoint>(socket,
+        buffers, endpoint, flags, &reactive_socket_sendto_op::do_complete),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the handler object.
+    reactive_socket_sendto_op* o(static_cast<reactive_socket_sendto_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    ASIO_HANDLER_COMPLETION((o));
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder2<Handler, asio::error_code, std::size_t>
+      handler(o->handler_, o->ec_, o->bytes_transferred_);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
+      asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_SENDTO_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_service.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_service.hpp
new file mode 100644
index 0000000..4bfbed2
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_service.hpp
@@ -0,0 +1,452 @@
+//
+// detail/reactive_socket_service.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include "asio/buffer.hpp"
+#include "asio/error.hpp"
+#include "asio/io_service.hpp"
+#include "asio/socket_base.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/reactive_null_buffers_op.hpp"
+#include "asio/detail/reactive_socket_accept_op.hpp"
+#include "asio/detail/reactive_socket_connect_op.hpp"
+#include "asio/detail/reactive_socket_recvfrom_op.hpp"
+#include "asio/detail/reactive_socket_sendto_op.hpp"
+#include "asio/detail/reactive_socket_service_base.hpp"
+#include "asio/detail/reactor.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_holder.hpp"
+#include "asio/detail/socket_ops.hpp"
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Protocol>
+class reactive_socket_service :
+  public reactive_socket_service_base
+{
+public:
+  // The protocol type.
+  typedef Protocol protocol_type;
+
+  // The endpoint type.
+  typedef typename Protocol::endpoint endpoint_type;
+
+  // The native type of a socket.
+  typedef socket_type native_handle_type;
+
+  // The implementation type of the socket.
+  struct implementation_type :
+    reactive_socket_service_base::base_implementation_type
+  {
+    // Default constructor.
+    implementation_type()
+      : protocol_(endpoint_type().protocol())
+    {
+    }
+
+    // The protocol associated with the socket.
+    protocol_type protocol_;
+  };
+
+  // Constructor.
+  reactive_socket_service(asio::io_service& io_service)
+    : reactive_socket_service_base(io_service)
+  {
+  }
+
+  // Move-construct a new socket implementation.
+  void move_construct(implementation_type& impl,
+      implementation_type& other_impl)
+  {
+    this->base_move_construct(impl, other_impl);
+
+    impl.protocol_ = other_impl.protocol_;
+    other_impl.protocol_ = endpoint_type().protocol();
+  }
+
+  // Move-assign from another socket implementation.
+  void move_assign(implementation_type& impl,
+      reactive_socket_service_base& other_service,
+      implementation_type& other_impl)
+  {
+    this->base_move_assign(impl, other_service, other_impl);
+
+    impl.protocol_ = other_impl.protocol_;
+    other_impl.protocol_ = endpoint_type().protocol();
+  }
+
+  // Move-construct a new socket implementation from another protocol type.
+  template <typename Protocol1>
+  void converting_move_construct(implementation_type& impl,
+      typename reactive_socket_service<
+        Protocol1>::implementation_type& other_impl)
+  {
+    this->base_move_construct(impl, other_impl);
+
+    impl.protocol_ = protocol_type(other_impl.protocol_);
+    other_impl.protocol_ = typename Protocol1::endpoint().protocol();
+  }
+
+  // Open a new socket implementation.
+  asio::error_code open(implementation_type& impl,
+      const protocol_type& protocol, asio::error_code& ec)
+  {
+    if (!do_open(impl, protocol.family(),
+          protocol.type(), protocol.protocol(), ec))
+      impl.protocol_ = protocol;
+    return ec;
+  }
+
+  // Assign a native socket to a socket implementation.
+  asio::error_code assign(implementation_type& impl,
+      const protocol_type& protocol, const native_handle_type& native_socket,
+      asio::error_code& ec)
+  {
+    if (!do_assign(impl, protocol.type(), native_socket, ec))
+      impl.protocol_ = protocol;
+    return ec;
+  }
+
+  // Get the native socket representation.
+  native_handle_type native_handle(implementation_type& impl)
+  {
+    return impl.socket_;
+  }
+
+  // Bind the socket to the specified local endpoint.
+  asio::error_code bind(implementation_type& impl,
+      const endpoint_type& endpoint, asio::error_code& ec)
+  {
+    socket_ops::bind(impl.socket_, endpoint.data(), endpoint.size(), ec);
+    return ec;
+  }
+
+  // Set a socket option.
+  template <typename Option>
+  asio::error_code set_option(implementation_type& impl,
+      const Option& option, asio::error_code& ec)
+  {
+    socket_ops::setsockopt(impl.socket_, impl.state_,
+        option.level(impl.protocol_), option.name(impl.protocol_),
+        option.data(impl.protocol_), option.size(impl.protocol_), ec);
+    return ec;
+  }
+
+  // Set a socket option.
+  template <typename Option>
+  asio::error_code get_option(const implementation_type& impl,
+      Option& option, asio::error_code& ec) const
+  {
+    std::size_t size = option.size(impl.protocol_);
+    socket_ops::getsockopt(impl.socket_, impl.state_,
+        option.level(impl.protocol_), option.name(impl.protocol_),
+        option.data(impl.protocol_), &size, ec);
+    if (!ec)
+      option.resize(impl.protocol_, size);
+    return ec;
+  }
+
+  // Get the local endpoint.
+  endpoint_type local_endpoint(const implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    endpoint_type endpoint;
+    std::size_t addr_len = endpoint.capacity();
+    if (socket_ops::getsockname(impl.socket_, endpoint.data(), &addr_len, ec))
+      return endpoint_type();
+    endpoint.resize(addr_len);
+    return endpoint;
+  }
+
+  // Get the remote endpoint.
+  endpoint_type remote_endpoint(const implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    endpoint_type endpoint;
+    std::size_t addr_len = endpoint.capacity();
+    if (socket_ops::getpeername(impl.socket_,
+          endpoint.data(), &addr_len, false, ec))
+      return endpoint_type();
+    endpoint.resize(addr_len);
+    return endpoint;
+  }
+
+  // Send a datagram to the specified endpoint. Returns the number of bytes
+  // sent.
+  template <typename ConstBufferSequence>
+  size_t send_to(implementation_type& impl, const ConstBufferSequence& buffers,
+      const endpoint_type& destination, socket_base::message_flags flags,
+      asio::error_code& ec)
+  {
+    buffer_sequence_adapter<asio::const_buffer,
+        ConstBufferSequence> bufs(buffers);
+
+    return socket_ops::sync_sendto(impl.socket_, impl.state_,
+        bufs.buffers(), bufs.count(), flags,
+        destination.data(), destination.size(), ec);
+  }
+
+  // Wait until data can be sent without blocking.
+  size_t send_to(implementation_type& impl, const null_buffers&,
+      const endpoint_type&, socket_base::message_flags,
+      asio::error_code& ec)
+  {
+    // Wait for socket to become ready.
+    socket_ops::poll_write(impl.socket_, impl.state_, ec);
+
+    return 0;
+  }
+
+  // Start an asynchronous send. The data being sent must be valid for the
+  // lifetime of the asynchronous operation.
+  template <typename ConstBufferSequence, typename Handler>
+  void async_send_to(implementation_type& impl,
+      const ConstBufferSequence& buffers,
+      const endpoint_type& destination, socket_base::message_flags flags,
+      Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_socket_sendto_op<ConstBufferSequence,
+        endpoint_type, Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(impl.socket_, buffers, destination, flags, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket", &impl, "async_send_to"));
+
+    start_op(impl, reactor::write_op, p.p, is_continuation, true, false);
+    p.v = p.p = 0;
+  }
+
+  // Start an asynchronous wait until data can be sent without blocking.
+  template <typename Handler>
+  void async_send_to(implementation_type& impl, const null_buffers&,
+      const endpoint_type&, socket_base::message_flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_null_buffers_op<Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket",
+          &impl, "async_send_to(null_buffers)"));
+
+    start_op(impl, reactor::write_op, p.p, is_continuation, false, false);
+    p.v = p.p = 0;
+  }
+
+  // Receive a datagram with the endpoint of the sender. Returns the number of
+  // bytes received.
+  template <typename MutableBufferSequence>
+  size_t receive_from(implementation_type& impl,
+      const MutableBufferSequence& buffers,
+      endpoint_type& sender_endpoint, socket_base::message_flags flags,
+      asio::error_code& ec)
+  {
+    buffer_sequence_adapter<asio::mutable_buffer,
+        MutableBufferSequence> bufs(buffers);
+
+    std::size_t addr_len = sender_endpoint.capacity();
+    std::size_t bytes_recvd = socket_ops::sync_recvfrom(
+        impl.socket_, impl.state_, bufs.buffers(), bufs.count(),
+        flags, sender_endpoint.data(), &addr_len, ec);
+
+    if (!ec)
+      sender_endpoint.resize(addr_len);
+
+    return bytes_recvd;
+  }
+
+  // Wait until data can be received without blocking.
+  size_t receive_from(implementation_type& impl, const null_buffers&,
+      endpoint_type& sender_endpoint, socket_base::message_flags,
+      asio::error_code& ec)
+  {
+    // Wait for socket to become ready.
+    socket_ops::poll_read(impl.socket_, impl.state_, ec);
+
+    // Reset endpoint since it can be given no sensible value at this time.
+    sender_endpoint = endpoint_type();
+
+    return 0;
+  }
+
+  // Start an asynchronous receive. The buffer for the data being received and
+  // the sender_endpoint object must both be valid for the lifetime of the
+  // asynchronous operation.
+  template <typename MutableBufferSequence, typename Handler>
+  void async_receive_from(implementation_type& impl,
+      const MutableBufferSequence& buffers, endpoint_type& sender_endpoint,
+      socket_base::message_flags flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_socket_recvfrom_op<MutableBufferSequence,
+        endpoint_type, Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    int protocol = impl.protocol_.type();
+    p.p = new (p.v) op(impl.socket_, protocol,
+        buffers, sender_endpoint, flags, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket",
+          &impl, "async_receive_from"));
+
+    start_op(impl,
+        (flags & socket_base::message_out_of_band)
+          ? reactor::except_op : reactor::read_op,
+        p.p, is_continuation, true, false);
+    p.v = p.p = 0;
+  }
+
+  // Wait until data can be received without blocking.
+  template <typename Handler>
+  void async_receive_from(implementation_type& impl,
+      const null_buffers&, endpoint_type& sender_endpoint,
+      socket_base::message_flags flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_null_buffers_op<Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket",
+          &impl, "async_receive_from(null_buffers)"));
+
+    // Reset endpoint since it can be given no sensible value at this time.
+    sender_endpoint = endpoint_type();
+
+    start_op(impl,
+        (flags & socket_base::message_out_of_band)
+          ? reactor::except_op : reactor::read_op,
+        p.p, is_continuation, false, false);
+    p.v = p.p = 0;
+  }
+
+  // Accept a new connection.
+  template <typename Socket>
+  asio::error_code accept(implementation_type& impl,
+      Socket& peer, endpoint_type* peer_endpoint, asio::error_code& ec)
+  {
+    // We cannot accept a socket that is already open.
+    if (peer.is_open())
+    {
+      ec = asio::error::already_open;
+      return ec;
+    }
+
+    std::size_t addr_len = peer_endpoint ? peer_endpoint->capacity() : 0;
+    socket_holder new_socket(socket_ops::sync_accept(impl.socket_,
+          impl.state_, peer_endpoint ? peer_endpoint->data() : 0,
+          peer_endpoint ? &addr_len : 0, ec));
+
+    // On success, assign new connection to peer socket object.
+    if (new_socket.get() != invalid_socket)
+    {
+      if (peer_endpoint)
+        peer_endpoint->resize(addr_len);
+      if (!peer.assign(impl.protocol_, new_socket.get(), ec))
+        new_socket.release();
+    }
+
+    return ec;
+  }
+
+  // Start an asynchronous accept. The peer and peer_endpoint objects
+  // must be valid until the accept's handler is invoked.
+  template <typename Socket, typename Handler>
+  void async_accept(implementation_type& impl, Socket& peer,
+      endpoint_type* peer_endpoint, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_socket_accept_op<Socket, Protocol, Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(impl.socket_, impl.state_, peer,
+        impl.protocol_, peer_endpoint, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket", &impl, "async_accept"));
+
+    start_accept_op(impl, p.p, is_continuation, peer.is_open());
+    p.v = p.p = 0;
+  }
+
+  // Connect the socket to the specified endpoint.
+  asio::error_code connect(implementation_type& impl,
+      const endpoint_type& peer_endpoint, asio::error_code& ec)
+  {
+    socket_ops::sync_connect(impl.socket_,
+        peer_endpoint.data(), peer_endpoint.size(), ec);
+    return ec;
+  }
+
+  // Start an asynchronous connect.
+  template <typename Handler>
+  void async_connect(implementation_type& impl,
+      const endpoint_type& peer_endpoint, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_socket_connect_op<Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(impl.socket_, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket", &impl, "async_connect"));
+
+    start_connect_op(impl, p.p, is_continuation,
+        peer_endpoint.data(), peer_endpoint.size());
+    p.v = p.p = 0;
+  }
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactive_socket_service_base.hpp b/asio-1.10.6/include/asio/detail/reactive_socket_service_base.hpp
new file mode 100644
index 0000000..957d975
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactive_socket_service_base.hpp
@@ -0,0 +1,442 @@
+//
+// detail/reactive_socket_service_base.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_BASE_HPP
+#define ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_BASE_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include "asio/buffer.hpp"
+#include "asio/error.hpp"
+#include "asio/io_service.hpp"
+#include "asio/socket_base.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/reactive_null_buffers_op.hpp"
+#include "asio/detail/reactive_socket_recv_op.hpp"
+#include "asio/detail/reactive_socket_recvmsg_op.hpp"
+#include "asio/detail/reactive_socket_send_op.hpp"
+#include "asio/detail/reactor.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/socket_holder.hpp"
+#include "asio/detail/socket_ops.hpp"
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class reactive_socket_service_base
+{
+public:
+  // The native type of a socket.
+  typedef socket_type native_handle_type;
+
+  // The implementation type of the socket.
+  struct base_implementation_type
+  {
+    // The native socket representation.
+    socket_type socket_;
+
+    // The current state of the socket.
+    socket_ops::state_type state_;
+
+    // Per-descriptor data used by the reactor.
+    reactor::per_descriptor_data reactor_data_;
+  };
+
+  // Constructor.
+  ASIO_DECL reactive_socket_service_base(
+      asio::io_service& io_service);
+
+  // Destroy all user-defined handler objects owned by the service.
+  ASIO_DECL void shutdown_service();
+
+  // Construct a new socket implementation.
+  ASIO_DECL void construct(base_implementation_type& impl);
+
+  // Move-construct a new socket implementation.
+  ASIO_DECL void base_move_construct(base_implementation_type& impl,
+      base_implementation_type& other_impl);
+
+  // Move-assign from another socket implementation.
+  ASIO_DECL void base_move_assign(base_implementation_type& impl,
+      reactive_socket_service_base& other_service,
+      base_implementation_type& other_impl);
+
+  // Destroy a socket implementation.
+  ASIO_DECL void destroy(base_implementation_type& impl);
+
+  // Determine whether the socket is open.
+  bool is_open(const base_implementation_type& impl) const
+  {
+    return impl.socket_ != invalid_socket;
+  }
+
+  // Destroy a socket implementation.
+  ASIO_DECL asio::error_code close(
+      base_implementation_type& impl, asio::error_code& ec);
+
+  // Get the native socket representation.
+  native_handle_type native_handle(base_implementation_type& impl)
+  {
+    return impl.socket_;
+  }
+
+  // Cancel all operations associated with the socket.
+  ASIO_DECL asio::error_code cancel(
+      base_implementation_type& impl, asio::error_code& ec);
+
+  // Determine whether the socket is at the out-of-band data mark.
+  bool at_mark(const base_implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    return socket_ops::sockatmark(impl.socket_, ec);
+  }
+
+  // Determine the number of bytes available for reading.
+  std::size_t available(const base_implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    return socket_ops::available(impl.socket_, ec);
+  }
+
+  // Place the socket into the state where it will listen for new connections.
+  asio::error_code listen(base_implementation_type& impl,
+      int backlog, asio::error_code& ec)
+  {
+    socket_ops::listen(impl.socket_, backlog, ec);
+    return ec;
+  }
+
+  // Perform an IO control command on the socket.
+  template <typename IO_Control_Command>
+  asio::error_code io_control(base_implementation_type& impl,
+      IO_Control_Command& command, asio::error_code& ec)
+  {
+    socket_ops::ioctl(impl.socket_, impl.state_, command.name(),
+        static_cast<ioctl_arg_type*>(command.data()), ec);
+    return ec;
+  }
+
+  // Gets the non-blocking mode of the socket.
+  bool non_blocking(const base_implementation_type& impl) const
+  {
+    return (impl.state_ & socket_ops::user_set_non_blocking) != 0;
+  }
+
+  // Sets the non-blocking mode of the socket.
+  asio::error_code non_blocking(base_implementation_type& impl,
+      bool mode, asio::error_code& ec)
+  {
+    socket_ops::set_user_non_blocking(impl.socket_, impl.state_, mode, ec);
+    return ec;
+  }
+
+  // Gets the non-blocking mode of the native socket implementation.
+  bool native_non_blocking(const base_implementation_type& impl) const
+  {
+    return (impl.state_ & socket_ops::internal_non_blocking) != 0;
+  }
+
+  // Sets the non-blocking mode of the native socket implementation.
+  asio::error_code native_non_blocking(base_implementation_type& impl,
+      bool mode, asio::error_code& ec)
+  {
+    socket_ops::set_internal_non_blocking(impl.socket_, impl.state_, mode, ec);
+    return ec;
+  }
+
+  // Disable sends or receives on the socket.
+  asio::error_code shutdown(base_implementation_type& impl,
+      socket_base::shutdown_type what, asio::error_code& ec)
+  {
+    socket_ops::shutdown(impl.socket_, what, ec);
+    return ec;
+  }
+
+  // Send the given data to the peer.
+  template <typename ConstBufferSequence>
+  size_t send(base_implementation_type& impl,
+      const ConstBufferSequence& buffers,
+      socket_base::message_flags flags, asio::error_code& ec)
+  {
+    buffer_sequence_adapter<asio::const_buffer,
+        ConstBufferSequence> bufs(buffers);
+
+    return socket_ops::sync_send(impl.socket_, impl.state_,
+        bufs.buffers(), bufs.count(), flags, bufs.all_empty(), ec);
+  }
+
+  // Wait until data can be sent without blocking.
+  size_t send(base_implementation_type& impl, const null_buffers&,
+      socket_base::message_flags, asio::error_code& ec)
+  {
+    // Wait for socket to become ready.
+    socket_ops::poll_write(impl.socket_, impl.state_, ec);
+
+    return 0;
+  }
+
+  // Start an asynchronous send. The data being sent must be valid for the
+  // lifetime of the asynchronous operation.
+  template <typename ConstBufferSequence, typename Handler>
+  void async_send(base_implementation_type& impl,
+      const ConstBufferSequence& buffers,
+      socket_base::message_flags flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_socket_send_op<ConstBufferSequence, Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(impl.socket_, buffers, flags, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket", &impl, "async_send"));
+
+    start_op(impl, reactor::write_op, p.p, is_continuation, true,
+        ((impl.state_ & socket_ops::stream_oriented)
+          && buffer_sequence_adapter<asio::const_buffer,
+            ConstBufferSequence>::all_empty(buffers)));
+    p.v = p.p = 0;
+  }
+
+  // Start an asynchronous wait until data can be sent without blocking.
+  template <typename Handler>
+  void async_send(base_implementation_type& impl, const null_buffers&,
+      socket_base::message_flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_null_buffers_op<Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket",
+          &impl, "async_send(null_buffers)"));
+
+    start_op(impl, reactor::write_op, p.p, is_continuation, false, false);
+    p.v = p.p = 0;
+  }
+
+  // Receive some data from the peer. Returns the number of bytes received.
+  template <typename MutableBufferSequence>
+  size_t receive(base_implementation_type& impl,
+      const MutableBufferSequence& buffers,
+      socket_base::message_flags flags, asio::error_code& ec)
+  {
+    buffer_sequence_adapter<asio::mutable_buffer,
+        MutableBufferSequence> bufs(buffers);
+
+    return socket_ops::sync_recv(impl.socket_, impl.state_,
+        bufs.buffers(), bufs.count(), flags, bufs.all_empty(), ec);
+  }
+
+  // Wait until data can be received without blocking.
+  size_t receive(base_implementation_type& impl, const null_buffers&,
+      socket_base::message_flags, asio::error_code& ec)
+  {
+    // Wait for socket to become ready.
+    socket_ops::poll_read(impl.socket_, impl.state_, ec);
+
+    return 0;
+  }
+
+  // Start an asynchronous receive. The buffer for the data being received
+  // must be valid for the lifetime of the asynchronous operation.
+  template <typename MutableBufferSequence, typename Handler>
+  void async_receive(base_implementation_type& impl,
+      const MutableBufferSequence& buffers,
+      socket_base::message_flags flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_socket_recv_op<MutableBufferSequence, Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(impl.socket_, impl.state_, buffers, flags, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket", &impl, "async_receive"));
+
+    start_op(impl,
+        (flags & socket_base::message_out_of_band)
+          ? reactor::except_op : reactor::read_op,
+        p.p, is_continuation,
+        (flags & socket_base::message_out_of_band) == 0,
+        ((impl.state_ & socket_ops::stream_oriented)
+          && buffer_sequence_adapter<asio::mutable_buffer,
+            MutableBufferSequence>::all_empty(buffers)));
+    p.v = p.p = 0;
+  }
+
+  // Wait until data can be received without blocking.
+  template <typename Handler>
+  void async_receive(base_implementation_type& impl, const null_buffers&,
+      socket_base::message_flags flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_null_buffers_op<Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket",
+          &impl, "async_receive(null_buffers)"));
+
+    start_op(impl,
+        (flags & socket_base::message_out_of_band)
+          ? reactor::except_op : reactor::read_op,
+        p.p, is_continuation, false, false);
+    p.v = p.p = 0;
+  }
+
+  // Receive some data with associated flags. Returns the number of bytes
+  // received.
+  template <typename MutableBufferSequence>
+  size_t receive_with_flags(base_implementation_type& impl,
+      const MutableBufferSequence& buffers,
+      socket_base::message_flags in_flags,
+      socket_base::message_flags& out_flags, asio::error_code& ec)
+  {
+    buffer_sequence_adapter<asio::mutable_buffer,
+        MutableBufferSequence> bufs(buffers);
+
+    return socket_ops::sync_recvmsg(impl.socket_, impl.state_,
+        bufs.buffers(), bufs.count(), in_flags, out_flags, ec);
+  }
+
+  // Wait until data can be received without blocking.
+  size_t receive_with_flags(base_implementation_type& impl,
+      const null_buffers&, socket_base::message_flags,
+      socket_base::message_flags& out_flags, asio::error_code& ec)
+  {
+    // Wait for socket to become ready.
+    socket_ops::poll_read(impl.socket_, impl.state_, ec);
+
+    // Clear out_flags, since we cannot give it any other sensible value when
+    // performing a null_buffers operation.
+    out_flags = 0;
+
+    return 0;
+  }
+
+  // Start an asynchronous receive. The buffer for the data being received
+  // must be valid for the lifetime of the asynchronous operation.
+  template <typename MutableBufferSequence, typename Handler>
+  void async_receive_with_flags(base_implementation_type& impl,
+      const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
+      socket_base::message_flags& out_flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_socket_recvmsg_op<MutableBufferSequence, Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(impl.socket_, buffers, in_flags, out_flags, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket",
+          &impl, "async_receive_with_flags"));
+
+    start_op(impl,
+        (in_flags & socket_base::message_out_of_band)
+          ? reactor::except_op : reactor::read_op,
+        p.p, is_continuation,
+        (in_flags & socket_base::message_out_of_band) == 0, false);
+    p.v = p.p = 0;
+  }
+
+  // Wait until data can be received without blocking.
+  template <typename Handler>
+  void async_receive_with_flags(base_implementation_type& impl,
+      const null_buffers&, socket_base::message_flags in_flags,
+      socket_base::message_flags& out_flags, Handler& handler)
+  {
+    bool is_continuation =
+      asio_handler_cont_helpers::is_continuation(handler);
+
+    // Allocate and construct an operation to wrap the handler.
+    typedef reactive_null_buffers_op<Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(handler);
+
+    ASIO_HANDLER_CREATION((p.p, "socket", &impl,
+          "async_receive_with_flags(null_buffers)"));
+
+    // Clear out_flags, since we cannot give it any other sensible value when
+    // performing a null_buffers operation.
+    out_flags = 0;
+
+    start_op(impl,
+        (in_flags & socket_base::message_out_of_band)
+          ? reactor::except_op : reactor::read_op,
+        p.p, is_continuation, false, false);
+    p.v = p.p = 0;
+  }
+
+protected:
+  // Open a new socket implementation.
+  ASIO_DECL asio::error_code do_open(
+      base_implementation_type& impl, int af,
+      int type, int protocol, asio::error_code& ec);
+
+  // Assign a native socket to a socket implementation.
+  ASIO_DECL asio::error_code do_assign(
+      base_implementation_type& impl, int type,
+      const native_handle_type& native_socket, asio::error_code& ec);
+
+  // Start the asynchronous read or write operation.
+  ASIO_DECL void start_op(base_implementation_type& impl, int op_type,
+      reactor_op* op, bool is_continuation, bool is_non_blocking, bool noop);
+
+  // Start the asynchronous accept operation.
+  ASIO_DECL void start_accept_op(base_implementation_type& impl,
+      reactor_op* op, bool is_continuation, bool peer_is_open);
+
+  // Start the asynchronous connect operation.
+  ASIO_DECL void start_connect_op(base_implementation_type& impl,
+      reactor_op* op, bool is_continuation,
+      const socket_addr_type* addr, size_t addrlen);
+
+  // The selector that performs event demultiplexing for the service.
+  reactor& reactor_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/reactive_socket_service_base.ipp"
+
+       //   && !defined(ASIO_WINDOWS_RUNTIME)
+
+#endif // ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_BASE_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactor.hpp b/asio-1.10.6/include/asio/detail/reactor.hpp
new file mode 100644
index 0000000..a9499ab
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactor.hpp
@@ -0,0 +1,25 @@
+//
+// detail/reactor.hpp
+// ~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTOR_HPP
+#define ASIO_DETAIL_REACTOR_HPP
+
+
+#include "asio/detail/reactor_fwd.hpp"
+
+#if defined(ASIO_HAS_EPOLL)
+# include "asio/detail/epoll_reactor.hpp"
+#elif defined(ASIO_HAS_DEV_POLL)
+# include "asio/detail/dev_poll_reactor.hpp"
+#else
+# include "asio/detail/select_reactor.hpp"
+#endif
+
+#endif // ASIO_DETAIL_REACTOR_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactor_fwd.hpp b/asio-1.10.6/include/asio/detail/reactor_fwd.hpp
new file mode 100644
index 0000000..d9f8a24
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactor_fwd.hpp
@@ -0,0 +1,31 @@
+//
+// detail/reactor_fwd.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTOR_FWD_HPP
+#define ASIO_DETAIL_REACTOR_FWD_HPP
+
+
+#include "asio/detail/config.hpp"
+
+namespace asio {
+namespace detail {
+
+#if   defined(ASIO_HAS_EPOLL)
+typedef class epoll_reactor reactor;
+#elif defined(ASIO_HAS_DEV_POLL)
+typedef class dev_poll_reactor reactor;
+#else
+typedef class select_reactor reactor;
+#endif
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_REACTOR_FWD_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactor_op.hpp b/asio-1.10.6/include/asio/detail/reactor_op.hpp
new file mode 100644
index 0000000..5e0ea9b
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactor_op.hpp
@@ -0,0 +1,58 @@
+//
+// detail/reactor_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTOR_OP_HPP
+#define ASIO_DETAIL_REACTOR_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/operation.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class reactor_op
+  : public operation
+{
+public:
+  // The error code to be passed to the completion handler.
+  asio::error_code ec_;
+
+  // The number of bytes transferred, to be passed to the completion handler.
+  std::size_t bytes_transferred_;
+
+  // Perform the operation. Returns true if it is finished.
+  bool perform()
+  {
+    return perform_func_(this);
+  }
+
+protected:
+  typedef bool (*perform_func_type)(reactor_op*);
+
+  reactor_op(perform_func_type perform_func, func_type complete_func)
+    : operation(complete_func),
+      bytes_transferred_(0),
+      perform_func_(perform_func)
+  {
+  }
+
+private:
+  perform_func_type perform_func_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTOR_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/reactor_op_queue.hpp b/asio-1.10.6/include/asio/detail/reactor_op_queue.hpp
new file mode 100644
index 0000000..3038cd4
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/reactor_op_queue.hpp
@@ -0,0 +1,165 @@
+//
+// detail/reactor_op_queue.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_REACTOR_OP_QUEUE_HPP
+#define ASIO_DETAIL_REACTOR_OP_QUEUE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/hash_map.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/op_queue.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Descriptor>
+class reactor_op_queue
+  : private noncopyable
+{
+public:
+  typedef Descriptor key_type;
+
+  struct mapped_type : op_queue<reactor_op>
+  {
+    mapped_type() {}
+    mapped_type(const mapped_type&) {}
+    void operator=(const mapped_type&) {}
+  };
+
+  typedef typename hash_map<key_type, mapped_type>::value_type value_type;
+  typedef typename hash_map<key_type, mapped_type>::iterator iterator;
+
+  // Constructor.
+  reactor_op_queue()
+    : operations_()
+  {
+  }
+
+  // Obtain iterators to all registered descriptors.
+  iterator begin() { return operations_.begin(); }
+  iterator end() { return operations_.end(); }
+
+  // Add a new operation to the queue. Returns true if this is the only
+  // operation for the given descriptor, in which case the reactor's event
+  // demultiplexing function call may need to be interrupted and restarted.
+  bool enqueue_operation(Descriptor descriptor, reactor_op* op)
+  {
+    std::pair<iterator, bool> entry =
+      operations_.insert(value_type(descriptor, mapped_type()));
+    entry.first->second.push(op);
+    return entry.second;
+  }
+
+  // Cancel all operations associated with the descriptor identified by the
+  // supplied iterator. Any operations pending for the descriptor will be
+  // cancelled. Returns true if any operations were cancelled, in which case
+  // the reactor's event demultiplexing function may need to be interrupted and
+  // restarted.
+  bool cancel_operations(iterator i, op_queue<operation>& ops,
+      const asio::error_code& ec =
+        asio::error::operation_aborted)
+  {
+    if (i != operations_.end())
+    {
+      while (reactor_op* op = i->second.front())
+      {
+        op->ec_ = ec;
+        i->second.pop();
+        ops.push(op);
+      }
+      operations_.erase(i);
+      return true;
+    }
+
+    return false;
+  }
+
+  // Cancel all operations associated with the descriptor. Any operations
+  // pending for the descriptor will be cancelled. Returns true if any
+  // operations were cancelled, in which case the reactor's event
+  // demultiplexing function may need to be interrupted and restarted.
+  bool cancel_operations(Descriptor descriptor, op_queue<operation>& ops,
+      const asio::error_code& ec =
+        asio::error::operation_aborted)
+  {
+    return this->cancel_operations(operations_.find(descriptor), ops, ec);
+  }
+
+  // Whether there are no operations in the queue.
+  bool empty() const
+  {
+    return operations_.empty();
+  }
+
+  // Determine whether there are any operations associated with the descriptor.
+  bool has_operation(Descriptor descriptor) const
+  {
+    return operations_.find(descriptor) != operations_.end();
+  }
+
+  // Perform the operations corresponding to the descriptor identified by the
+  // supplied iterator. Returns true if there are still unfinished operations
+  // queued for the descriptor.
+  bool perform_operations(iterator i, op_queue<operation>& ops)
+  {
+    if (i != operations_.end())
+    {
+      while (reactor_op* op = i->second.front())
+      {
+        if (op->perform())
+        {
+          i->second.pop();
+          ops.push(op);
+        }
+        else
+        {
+          return true;
+        }
+      }
+      operations_.erase(i);
+    }
+    return false;
+  }
+
+  // Perform the operations corresponding to the descriptor. Returns true if
+  // there are still unfinished operations queued for the descriptor.
+  bool perform_operations(Descriptor descriptor, op_queue<operation>& ops)
+  {
+    return this->perform_operations(operations_.find(descriptor), ops);
+  }
+
+  // Get all operations owned by the queue.
+  void get_all_operations(op_queue<operation>& ops)
+  {
+    iterator i = operations_.begin();
+    while (i != operations_.end())
+    {
+      iterator op_iter = i++;
+      ops.push(op_iter->second);
+      operations_.erase(op_iter);
+    }
+  }
+
+private:
+  // The operations that are currently executing asynchronously.
+  hash_map<key_type, mapped_type> operations_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_REACTOR_OP_QUEUE_HPP
diff --git a/asio-1.10.6/include/asio/detail/resolve_endpoint_op.hpp b/asio-1.10.6/include/asio/detail/resolve_endpoint_op.hpp
new file mode 100644
index 0000000..615d740
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/resolve_endpoint_op.hpp
@@ -0,0 +1,118 @@
+//
+// detail/resolve_endpoint_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_RESOLVER_ENDPOINT_OP_HPP
+#define ASIO_DETAIL_RESOLVER_ENDPOINT_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/error.hpp"
+#include "asio/io_service.hpp"
+#include "asio/ip/basic_resolver_iterator.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/operation.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Protocol, typename Handler>
+class resolve_endpoint_op : public operation
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(resolve_endpoint_op);
+
+  typedef typename Protocol::endpoint endpoint_type;
+  typedef asio::ip::basic_resolver_iterator<Protocol> iterator_type;
+
+  resolve_endpoint_op(socket_ops::weak_cancel_token_type cancel_token,
+      const endpoint_type& endpoint, io_service_impl& ios, Handler& handler)
+    : operation(&resolve_endpoint_op::do_complete),
+      cancel_token_(cancel_token),
+      endpoint_(endpoint),
+      io_service_impl_(ios),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the operation object.
+    resolve_endpoint_op* o(static_cast<resolve_endpoint_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    if (owner && owner != &o->io_service_impl_)
+    {
+      // The operation is being run on the worker io_service. Time to perform
+      // the resolver operation.
+    
+      // Perform the blocking endpoint resolution operation.
+      char host_name[NI_MAXHOST];
+      char service_name[NI_MAXSERV];
+      socket_ops::background_getnameinfo(o->cancel_token_, o->endpoint_.data(),
+          o->endpoint_.size(), host_name, NI_MAXHOST, service_name, NI_MAXSERV,
+          o->endpoint_.protocol().type(), o->ec_);
+      o->iter_ = iterator_type::create(o->endpoint_, host_name, service_name);
+
+      // Pass operation back to main io_service for completion.
+      o->io_service_impl_.post_deferred_completion(o);
+      p.v = p.p = 0;
+    }
+    else
+    {
+      // The operation has been returned to the main io_service. The completion
+      // handler is ready to be delivered.
+
+      ASIO_HANDLER_COMPLETION((o));
+
+      // Make a copy of the handler so that the memory can be deallocated
+      // before the upcall is made. Even if we're not about to make an upcall,
+      // a sub-object of the handler may be the true owner of the memory
+      // associated with the handler. Consequently, a local copy of the handler
+      // is required to ensure that any owning sub-object remains valid until
+      // after we have deallocated the memory here.
+      detail::binder2<Handler, asio::error_code, iterator_type>
+        handler(o->handler_, o->ec_, o->iter_);
+      p.h = asio::detail::addressof(handler.handler_);
+      p.reset();
+
+      if (owner)
+      {
+        fenced_block b(fenced_block::half);
+        ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "..."));
+        asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+        ASIO_HANDLER_INVOCATION_END;
+      }
+    }
+  }
+
+private:
+  socket_ops::weak_cancel_token_type cancel_token_;
+  endpoint_type endpoint_;
+  io_service_impl& io_service_impl_;
+  Handler handler_;
+  asio::error_code ec_;
+  iterator_type iter_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_RESOLVER_ENDPOINT_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/resolve_op.hpp b/asio-1.10.6/include/asio/detail/resolve_op.hpp
new file mode 100644
index 0000000..f2fbde4
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/resolve_op.hpp
@@ -0,0 +1,128 @@
+//
+// detail/resolve_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_RESOLVE_OP_HPP
+#define ASIO_DETAIL_RESOLVE_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/error.hpp"
+#include "asio/io_service.hpp"
+#include "asio/ip/basic_resolver_iterator.hpp"
+#include "asio/ip/basic_resolver_query.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/operation.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Protocol, typename Handler>
+class resolve_op : public operation
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(resolve_op);
+
+  typedef asio::ip::basic_resolver_query<Protocol> query_type;
+  typedef asio::ip::basic_resolver_iterator<Protocol> iterator_type;
+
+  resolve_op(socket_ops::weak_cancel_token_type cancel_token,
+      const query_type& query, io_service_impl& ios, Handler& handler)
+    : operation(&resolve_op::do_complete),
+      cancel_token_(cancel_token),
+      query_(query),
+      io_service_impl_(ios),
+      handler_(ASIO_MOVE_CAST(Handler)(handler)),
+      addrinfo_(0)
+  {
+  }
+
+  ~resolve_op()
+  {
+    if (addrinfo_)
+      socket_ops::freeaddrinfo(addrinfo_);
+  }
+
+  static void do_complete(io_service_impl* owner, operation* base,
+      const asio::error_code& /*ec*/,
+      std::size_t /*bytes_transferred*/)
+  {
+    // Take ownership of the operation object.
+    resolve_op* o(static_cast<resolve_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+
+    if (owner && owner != &o->io_service_impl_)
+    {
+      // The operation is being run on the worker io_service. Time to perform
+      // the resolver operation.
+    
+      // Perform the blocking host resolution operation.
+      socket_ops::background_getaddrinfo(o->cancel_token_,
+          o->query_.host_name().c_str(), o->query_.service_name().c_str(),
+          o->query_.hints(), &o->addrinfo_, o->ec_);
+
+      // Pass operation back to main io_service for completion.
+      o->io_service_impl_.post_deferred_completion(o);
+      p.v = p.p = 0;
+    }
+    else
+    {
+      // The operation has been returned to the main io_service. The completion
+      // handler is ready to be delivered.
+
+      ASIO_HANDLER_COMPLETION((o));
+
+      // Make a copy of the handler so that the memory can be deallocated
+      // before the upcall is made. Even if we're not about to make an upcall,
+      // a sub-object of the handler may be the true owner of the memory
+      // associated with the handler. Consequently, a local copy of the handler
+      // is required to ensure that any owning sub-object remains valid until
+      // after we have deallocated the memory here.
+      detail::binder2<Handler, asio::error_code, iterator_type>
+        handler(o->handler_, o->ec_, iterator_type());
+      p.h = asio::detail::addressof(handler.handler_);
+      if (o->addrinfo_)
+      {
+        handler.arg2_ = iterator_type::create(o->addrinfo_,
+            o->query_.host_name(), o->query_.service_name());
+      }
+      p.reset();
+
+      if (owner)
+      {
+        fenced_block b(fenced_block::half);
+        ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "..."));
+        asio_handler_invoke_helpers::invoke(handler, handler.handler_);
+        ASIO_HANDLER_INVOCATION_END;
+      }
+    }
+  }
+
+private:
+  socket_ops::weak_cancel_token_type cancel_token_;
+  query_type query_;
+  io_service_impl& io_service_impl_;
+  Handler handler_;
+  asio::error_code ec_;
+  asio::detail::addrinfo_type* addrinfo_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_RESOLVE_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/resolver_service.hpp b/asio-1.10.6/include/asio/detail/resolver_service.hpp
new file mode 100644
index 0000000..7464428
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/resolver_service.hpp
@@ -0,0 +1,124 @@
+//
+// detail/resolver_service.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_RESOLVER_SERVICE_HPP
+#define ASIO_DETAIL_RESOLVER_SERVICE_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include "asio/ip/basic_resolver_iterator.hpp"
+#include "asio/ip/basic_resolver_query.hpp"
+#include "asio/detail/addressof.hpp"
+#include "asio/detail/resolve_endpoint_op.hpp"
+#include "asio/detail/resolve_op.hpp"
+#include "asio/detail/resolver_service_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename Protocol>
+class resolver_service : public resolver_service_base
+{
+public:
+  // The implementation type of the resolver. A cancellation token is used to
+  // indicate to the background thread that the operation has been cancelled.
+  typedef socket_ops::shared_cancel_token_type implementation_type;
+
+  // The endpoint type.
+  typedef typename Protocol::endpoint endpoint_type;
+
+  // The query type.
+  typedef asio::ip::basic_resolver_query<Protocol> query_type;
+
+  // The iterator type.
+  typedef asio::ip::basic_resolver_iterator<Protocol> iterator_type;
+
+  // Constructor.
+  resolver_service(asio::io_service& io_service)
+    : resolver_service_base(io_service)
+  {
+  }
+
+  // Resolve a query to a list of entries.
+  iterator_type resolve(implementation_type&, const query_type& query,
+      asio::error_code& ec)
+  {
+    asio::detail::addrinfo_type* address_info = 0;
+
+    socket_ops::getaddrinfo(query.host_name().c_str(),
+        query.service_name().c_str(), query.hints(), &address_info, ec);
+    auto_addrinfo auto_address_info(address_info);
+
+    return ec ? iterator_type() : iterator_type::create(
+        address_info, query.host_name(), query.service_name());
+  }
+
+  // Asynchronously resolve a query to a list of entries.
+  template <typename Handler>
+  void async_resolve(implementation_type& impl,
+      const query_type& query, Handler& handler)
+  {
+    // Allocate and construct an operation to wrap the handler.
+    typedef resolve_op<Protocol, Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(impl, query, io_service_impl_, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "resolver", &impl, "async_resolve"));
+
+    start_resolve_op(p.p);
+    p.v = p.p = 0;
+  }
+
+  // Resolve an endpoint to a list of entries.
+  iterator_type resolve(implementation_type&,
+      const endpoint_type& endpoint, asio::error_code& ec)
+  {
+    char host_name[NI_MAXHOST];
+    char service_name[NI_MAXSERV];
+    socket_ops::sync_getnameinfo(endpoint.data(), endpoint.size(),
+        host_name, NI_MAXHOST, service_name, NI_MAXSERV,
+        endpoint.protocol().type(), ec);
+
+    return ec ? iterator_type() : iterator_type::create(
+        endpoint, host_name, service_name);
+  }
+
+  // Asynchronously resolve an endpoint to a list of entries.
+  template <typename Handler>
+  void async_resolve(implementation_type& impl,
+      const endpoint_type& endpoint, Handler& handler)
+  {
+    // Allocate and construct an operation to wrap the handler.
+    typedef resolve_endpoint_op<Protocol, Handler> op;
+    typename op::ptr p = { asio::detail::addressof(handler),
+      asio_handler_alloc_helpers::allocate(
+        sizeof(op), handler), 0 };
+    p.p = new (p.v) op(impl, endpoint, io_service_impl_, handler);
+
+    ASIO_HANDLER_CREATION((p.p, "resolver", &impl, "async_resolve"));
+
+    start_resolve_op(p.p);
+    p.v = p.p = 0;
+  }
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+
+#endif // ASIO_DETAIL_RESOLVER_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/detail/resolver_service_base.hpp b/asio-1.10.6/include/asio/detail/resolver_service_base.hpp
new file mode 100644
index 0000000..aac6860
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/resolver_service_base.hpp
@@ -0,0 +1,122 @@
+//
+// detail/resolver_service_base.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_RESOLVER_SERVICE_BASE_HPP
+#define ASIO_DETAIL_RESOLVER_SERVICE_BASE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/error.hpp"
+#include "asio/io_service.hpp"
+#include "asio/detail/mutex.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/operation.hpp"
+#include "asio/detail/socket_ops.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/scoped_ptr.hpp"
+#include "asio/detail/thread.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class resolver_service_base
+{
+public:
+  // The implementation type of the resolver. A cancellation token is used to
+  // indicate to the background thread that the operation has been cancelled.
+  typedef socket_ops::shared_cancel_token_type implementation_type;
+
+  // Constructor.
+  ASIO_DECL resolver_service_base(asio::io_service& io_service);
+
+  // Destructor.
+  ASIO_DECL ~resolver_service_base();
+
+  // Destroy all user-defined handler objects owned by the service.
+  ASIO_DECL void shutdown_service();
+
+  // Perform any fork-related housekeeping.
+  ASIO_DECL void fork_service(
+      asio::io_service::fork_event fork_ev);
+
+  // Construct a new resolver implementation.
+  ASIO_DECL void construct(implementation_type& impl);
+
+  // Destroy a resolver implementation.
+  ASIO_DECL void destroy(implementation_type&);
+
+  // Cancel pending asynchronous operations.
+  ASIO_DECL void cancel(implementation_type& impl);
+
+protected:
+  // Helper function to start an asynchronous resolve operation.
+  ASIO_DECL void start_resolve_op(operation* op);
+
+  // Helper class to perform exception-safe cleanup of addrinfo objects.
+  class auto_addrinfo
+    : private asio::detail::noncopyable
+  {
+  public:
+    explicit auto_addrinfo(asio::detail::addrinfo_type* ai)
+      : ai_(ai)
+    {
+    }
+
+    ~auto_addrinfo()
+    {
+      if (ai_)
+        socket_ops::freeaddrinfo(ai_);
+    }
+
+    operator asio::detail::addrinfo_type*()
+    {
+      return ai_;
+    }
+
+  private:
+    asio::detail::addrinfo_type* ai_;
+  };
+
+  // Helper class to run the work io_service in a thread.
+  class work_io_service_runner;
+
+  // Start the work thread if it's not already running.
+  ASIO_DECL void start_work_thread();
+
+  // The io_service implementation used to post completions.
+  io_service_impl& io_service_impl_;
+
+private:
+  // Mutex to protect access to internal data.
+  asio::detail::mutex mutex_;
+
+  // Private io_service used for performing asynchronous host resolution.
+  asio::detail::scoped_ptr<asio::io_service> work_io_service_;
+
+  // The work io_service implementation used to post completions.
+  io_service_impl& work_io_service_impl_;
+
+  // Work for the private io_service to perform.
+  asio::detail::scoped_ptr<asio::io_service::work> work_;
+
+  // Thread used for running the work io_service's run loop.
+  asio::detail::scoped_ptr<asio::detail::thread> work_thread_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/resolver_service_base.ipp"
+
+#endif // ASIO_DETAIL_RESOLVER_SERVICE_BASE_HPP
diff --git a/asio-1.10.6/include/asio/detail/scoped_lock.hpp b/asio-1.10.6/include/asio/detail/scoped_lock.hpp
new file mode 100644
index 0000000..f0ff643
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/scoped_lock.hpp
@@ -0,0 +1,98 @@
+//
+// detail/scoped_lock.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SCOPED_LOCK_HPP
+#define ASIO_DETAIL_SCOPED_LOCK_HPP
+
+
+#include "asio/detail/noncopyable.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+// Helper class to lock and unlock a mutex automatically.
+template <typename Mutex>
+class scoped_lock
+  : private noncopyable
+{
+public:
+  // Tag type used to distinguish constructors.
+  enum adopt_lock_t { adopt_lock };
+
+  // Constructor adopts a lock that is already held.
+  scoped_lock(Mutex& m, adopt_lock_t)
+    : mutex_(m),
+      locked_(true)
+  {
+  }
+
+  // Constructor acquires the lock.
+  explicit scoped_lock(Mutex& m)
+    : mutex_(m)
+  {
+    mutex_.lock();
+    locked_ = true;
+  }
+
+  // Destructor releases the lock.
+  ~scoped_lock()
+  {
+    if (locked_)
+      mutex_.unlock();
+  }
+
+  // Explicitly acquire the lock.
+  void lock()
+  {
+    if (!locked_)
+    {
+      mutex_.lock();
+      locked_ = true;
+    }
+  }
+
+  // Explicitly release the lock.
+  void unlock()
+  {
+    if (locked_)
+    {
+      mutex_.unlock();
+      locked_ = false;
+    }
+  }
+
+  // Test whether the lock is held.
+  bool locked() const
+  {
+    return locked_;
+  }
+
+  // Get the underlying mutex.
+  Mutex& mutex()
+  {
+    return mutex_;
+  }
+
+private:
+  // The underlying mutex.
+  Mutex& mutex_;
+
+  // Whether the mutex is currently locked or unlocked.
+  bool locked_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_SCOPED_LOCK_HPP
diff --git a/asio-1.10.6/include/asio/detail/scoped_ptr.hpp b/asio-1.10.6/include/asio/detail/scoped_ptr.hpp
new file mode 100644
index 0000000..03c65c0
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/scoped_ptr.hpp
@@ -0,0 +1,76 @@
+//
+// detail/scoped_ptr.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SCOPED_PTR_HPP
+#define ASIO_DETAIL_SCOPED_PTR_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename T>
+class scoped_ptr
+{
+public:
+  // Constructor.
+  explicit scoped_ptr(T* p = 0)
+    : p_(p)
+  {
+  }
+
+  // Destructor.
+  ~scoped_ptr()
+  {
+    delete p_;
+  }
+
+  // Access.
+  T* get()
+  {
+    return p_;
+  }
+
+  // Access.
+  T* operator->()
+  {
+    return p_;
+  }
+
+  // Dereference.
+  T& operator*()
+  {
+    return *p_;
+  }
+
+  // Reset pointer.
+  void reset(T* p = 0)
+  {
+    delete p_;
+    p_ = p;
+  }
+
+private:
+  // Disallow copying and assignment.
+  scoped_ptr(const scoped_ptr&);
+  scoped_ptr& operator=(const scoped_ptr&);
+
+  T* p_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_SCOPED_PTR_HPP
diff --git a/asio-1.10.6/include/asio/detail/select_interrupter.hpp b/asio-1.10.6/include/asio/detail/select_interrupter.hpp
new file mode 100644
index 0000000..9a8d639
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/select_interrupter.hpp
@@ -0,0 +1,29 @@
+//
+// detail/select_interrupter.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SELECT_INTERRUPTER_HPP
+#define ASIO_DETAIL_SELECT_INTERRUPTER_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+# include "asio/detail/pipe_select_interrupter.hpp"
+
+namespace asio {
+namespace detail {
+
+typedef pipe_select_interrupter select_interrupter;
+
+} // namespace detail
+} // namespace asio
+
+
+#endif // ASIO_DETAIL_SELECT_INTERRUPTER_HPP
diff --git a/asio-1.10.6/include/asio/detail/select_reactor.hpp b/asio-1.10.6/include/asio/detail/select_reactor.hpp
new file mode 100644
index 0000000..e0f06db
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/select_reactor.hpp
@@ -0,0 +1,188 @@
+//
+// detail/select_reactor.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SELECT_REACTOR_HPP
+#define ASIO_DETAIL_SELECT_REACTOR_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_IOCP)    || (!defined(ASIO_HAS_DEV_POLL)        && !defined(ASIO_HAS_EPOLL)        && !defined(ASIO_HAS_KQUEUE)        && !defined(ASIO_WINDOWS_RUNTIME))
+
+#include <cstddef>
+#include "asio/detail/fd_set_adapter.hpp"
+#include "asio/detail/limits.hpp"
+#include "asio/detail/mutex.hpp"
+#include "asio/detail/op_queue.hpp"
+#include "asio/detail/reactor_op.hpp"
+#include "asio/detail/reactor_op_queue.hpp"
+#include "asio/detail/select_interrupter.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/timer_queue_base.hpp"
+#include "asio/detail/timer_queue_set.hpp"
+#include "asio/detail/wait_op.hpp"
+#include "asio/io_service.hpp"
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class select_reactor
+  : public asio::detail::service_base<select_reactor>
+{
+public:
+  enum op_types { read_op = 0, write_op = 1, except_op = 2,
+    max_select_ops = 3, connect_op = 1, max_ops = 3 };
+
+  // Per-descriptor data.
+  struct per_descriptor_data
+  {
+  };
+
+  // Constructor.
+  ASIO_DECL select_reactor(asio::io_service& io_service);
+
+  // Destructor.
+  ASIO_DECL ~select_reactor();
+
+  // Destroy all user-defined handler objects owned by the service.
+  ASIO_DECL void shutdown_service();
+
+  // Recreate internal descriptors following a fork.
+  ASIO_DECL void fork_service(
+      asio::io_service::fork_event fork_ev);
+
+  // Initialise the task, but only if the reactor is not in its own thread.
+  ASIO_DECL void init_task();
+
+  // Register a socket with the reactor. Returns 0 on success, system error
+  // code on failure.
+  ASIO_DECL int register_descriptor(socket_type, per_descriptor_data&);
+
+  // Register a descriptor with an associated single operation. Returns 0 on
+  // success, system error code on failure.
+  ASIO_DECL int register_internal_descriptor(
+      int op_type, socket_type descriptor,
+      per_descriptor_data& descriptor_data, reactor_op* op);
+
+  // Post a reactor operation for immediate completion.
+  void post_immediate_completion(reactor_op* op, bool is_continuation)
+  {
+    io_service_.post_immediate_completion(op, is_continuation);
+  }
+
+  // Start a new operation. The reactor operation will be performed when the
+  // given descriptor is flagged as ready, or an error has occurred.
+  ASIO_DECL void start_op(int op_type, socket_type descriptor,
+      per_descriptor_data&, reactor_op* op, bool is_continuation, bool);
+
+  // Cancel all operations associated with the given descriptor. The
+  // handlers associated with the descriptor will be invoked with the
+  // operation_aborted error.
+  ASIO_DECL void cancel_ops(socket_type descriptor, per_descriptor_data&);
+
+  // Cancel any operations that are running against the descriptor and remove
+  // its registration from the reactor.
+  ASIO_DECL void deregister_descriptor(socket_type descriptor,
+      per_descriptor_data&, bool closing);
+
+  // Remote the descriptor's registration from the reactor.
+  ASIO_DECL void deregister_internal_descriptor(
+      socket_type descriptor, per_descriptor_data& descriptor_data);
+
+  // Move descriptor registration from one descriptor_data object to another.
+  ASIO_DECL void move_descriptor(socket_type descriptor,
+      per_descriptor_data& target_descriptor_data,
+      per_descriptor_data& source_descriptor_data);
+
+  // Add a new timer queue to the reactor.
+  template <typename Time_Traits>
+  void add_timer_queue(timer_queue<Time_Traits>& queue);
+
+  // Remove a timer queue from the reactor.
+  template <typename Time_Traits>
+  void remove_timer_queue(timer_queue<Time_Traits>& queue);
+
+  // Schedule a new operation in the given timer queue to expire at the
+  // specified absolute time.
+  template <typename Time_Traits>
+  void schedule_timer(timer_queue<Time_Traits>& queue,
+      const typename Time_Traits::time_type& time,
+      typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op);
+
+  // Cancel the timer operations associated with the given token. Returns the
+  // number of operations that have been posted or dispatched.
+  template <typename Time_Traits>
+  std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
+      typename timer_queue<Time_Traits>::per_timer_data& timer,
+      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
+
+  // Run select once until interrupted or events are ready to be dispatched.
+  ASIO_DECL void run(bool block, op_queue<operation>& ops);
+
+  // Interrupt the select loop.
+  ASIO_DECL void interrupt();
+
+private:
+
+  // Helper function to add a new timer queue.
+  ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
+
+  // Helper function to remove a timer queue.
+  ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
+
+  // Get the timeout value for the select call.
+  ASIO_DECL timeval* get_timeout(timeval& tv);
+
+  // Cancel all operations associated with the given descriptor. This function
+  // does not acquire the select_reactor's mutex.
+  ASIO_DECL void cancel_ops_unlocked(socket_type descriptor,
+      const asio::error_code& ec);
+
+  // The io_service implementation used to post completions.
+  io_service_impl& io_service_;
+
+  // Mutex to protect access to internal data.
+  asio::detail::mutex mutex_;
+
+  // The interrupter is used to break a blocking select call.
+  select_interrupter interrupter_;
+
+  // The queues of read, write and except operations.
+  reactor_op_queue<socket_type> op_queue_[max_ops];
+
+  // The file descriptor sets to be passed to the select system call.
+  fd_set_adapter fd_sets_[max_select_ops];
+
+  // The timer queues.
+  timer_queue_set timer_queues_;
+
+
+  // Whether the service has been shut down.
+  bool shutdown_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/detail/impl/select_reactor.hpp"
+# include "asio/detail/impl/select_reactor.ipp"
+
+#endif // defined(ASIO_HAS_IOCP)
+       //   || (!defined(ASIO_HAS_DEV_POLL)
+       //       && !defined(ASIO_HAS_EPOLL)
+       //       && !defined(ASIO_HAS_KQUEUE)
+       //       && !defined(ASIO_WINDOWS_RUNTIME))
+
+#endif // ASIO_DETAIL_SELECT_REACTOR_HPP
diff --git a/asio-1.10.6/include/asio/detail/service_registry.hpp b/asio-1.10.6/include/asio/detail/service_registry.hpp
new file mode 100644
index 0000000..b69eba2
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/service_registry.hpp
@@ -0,0 +1,139 @@
+//
+// detail/service_registry.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SERVICE_REGISTRY_HPP
+#define ASIO_DETAIL_SERVICE_REGISTRY_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <typeinfo>
+#include "asio/detail/mutex.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/io_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename T>
+class typeid_wrapper {};
+
+class service_registry
+  : private noncopyable
+{
+public:
+  // Constructor. Adds the initial service.
+  template <typename Service, typename Arg>
+  service_registry(asio::io_service& o,
+      Service* initial_service, Arg arg);
+
+  // Destructor.
+  ASIO_DECL ~service_registry();
+
+  // Notify all services of a fork event.
+  ASIO_DECL void notify_fork(asio::io_service::fork_event fork_ev);
+
+  // Get the first service object cast to the specified type. Called during
+  // io_service construction and so performs no locking or type checking.
+  template <typename Service>
+  Service& first_service();
+
+  // Get the service object corresponding to the specified service type. Will
+  // create a new service object automatically if no such object already
+  // exists. Ownership of the service object is not transferred to the caller.
+  template <typename Service>
+  Service& use_service();
+
+  // Add a service object. Throws on error, in which case ownership of the
+  // object is retained by the caller.
+  template <typename Service>
+  void add_service(Service* new_service);
+
+  // Check whether a service object of the specified type already exists.
+  template <typename Service>
+  bool has_service() const;
+
+private:
+  // Initialise a service's key based on its id.
+  ASIO_DECL static void init_key(
+      asio::io_service::service::key& key,
+      const asio::io_service::id& id);
+
+#if !defined(ASIO_NO_TYPEID)
+  // Initialise a service's key based on its id.
+  template <typename Service>
+  static void init_key(asio::io_service::service::key& key,
+      const asio::detail::service_id<Service>& /*id*/);
+#endif // !defined(ASIO_NO_TYPEID)
+
+  // Check if a service matches the given id.
+  ASIO_DECL static bool keys_match(
+      const asio::io_service::service::key& key1,
+      const asio::io_service::service::key& key2);
+
+  // The type of a factory function used for creating a service instance.
+  typedef asio::io_service::service*
+    (*factory_type)(asio::io_service&);
+
+  // Factory function for creating a service instance.
+  template <typename Service>
+  static asio::io_service::service* create(
+      asio::io_service& owner);
+
+  // Destroy a service instance.
+  ASIO_DECL static void destroy(
+      asio::io_service::service* service);
+
+  // Helper class to manage service pointers.
+  struct auto_service_ptr;
+  friend struct auto_service_ptr;
+  struct auto_service_ptr
+  {
+    asio::io_service::service* ptr_;
+    ~auto_service_ptr() { destroy(ptr_); }
+  };
+
+  // Get the service object corresponding to the specified service key. Will
+  // create a new service object automatically if no such object already
+  // exists. Ownership of the service object is not transferred to the caller.
+  ASIO_DECL asio::io_service::service* do_use_service(
+      const asio::io_service::service::key& key,
+      factory_type factory);
+
+  // Add a service object. Throws on error, in which case ownership of the
+  // object is retained by the caller.
+  ASIO_DECL void do_add_service(
+      const asio::io_service::service::key& key,
+      asio::io_service::service* new_service);
+
+  // Check whether a service object with the specified key already exists.
+  ASIO_DECL bool do_has_service(
+      const asio::io_service::service::key& key) const;
+
+  // Mutex to protect access to internal data.
+  mutable asio::detail::mutex mutex_;
+
+  // The owner of this service registry and the services it contains.
+  asio::io_service& owner_;
+
+  // The first service in the list of contained services.
+  asio::io_service::service* first_service_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/detail/impl/service_registry.hpp"
+# include "asio/detail/impl/service_registry.ipp"
+
+#endif // ASIO_DETAIL_SERVICE_REGISTRY_HPP
diff --git a/asio-1.10.6/include/asio/detail/shared_ptr.hpp b/asio-1.10.6/include/asio/detail/shared_ptr.hpp
new file mode 100644
index 0000000..f3fc3ab
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/shared_ptr.hpp
@@ -0,0 +1,27 @@
+//
+// detail/shared_ptr.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SHARED_PTR_HPP
+#define ASIO_DETAIL_SHARED_PTR_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <memory>
+
+namespace asio {
+namespace detail {
+
+using std::shared_ptr;
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_SHARED_PTR_HPP
diff --git a/asio-1.10.6/include/asio/detail/signal_blocker.hpp b/asio-1.10.6/include/asio/detail/signal_blocker.hpp
new file mode 100644
index 0000000..3e96c05
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/signal_blocker.hpp
@@ -0,0 +1,33 @@
+//
+// detail/signal_blocker.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SIGNAL_BLOCKER_HPP
+#define ASIO_DETAIL_SIGNAL_BLOCKER_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if   defined(ASIO_HAS_PTHREADS)
+# include "asio/detail/posix_signal_blocker.hpp"
+#else
+# error Only Windows and POSIX are supported!
+#endif
+
+namespace asio {
+namespace detail {
+
+#if   defined(ASIO_HAS_PTHREADS)
+typedef posix_signal_blocker signal_blocker;
+#endif
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_SIGNAL_BLOCKER_HPP
diff --git a/asio-1.10.6/include/asio/detail/socket_holder.hpp b/asio-1.10.6/include/asio/detail/socket_holder.hpp
new file mode 100644
index 0000000..7bd3475
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/socket_holder.hpp
@@ -0,0 +1,95 @@
+//
+// detail/socket_holder.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SOCKET_HOLDER_HPP
+#define ASIO_DETAIL_SOCKET_HOLDER_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/socket_ops.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+// Implement the resource acquisition is initialisation idiom for sockets.
+class socket_holder
+  : private noncopyable
+{
+public:
+  // Construct as an uninitialised socket.
+  socket_holder()
+    : socket_(invalid_socket)
+  {
+  }
+
+  // Construct to take ownership of the specified socket.
+  explicit socket_holder(socket_type s)
+    : socket_(s)
+  {
+  }
+
+  // Destructor.
+  ~socket_holder()
+  {
+    if (socket_ != invalid_socket)
+    {
+      asio::error_code ec;
+      socket_ops::state_type state = 0;
+      socket_ops::close(socket_, state, true, ec);
+    }
+  }
+
+  // Get the underlying socket.
+  socket_type get() const
+  {
+    return socket_;
+  }
+
+  // Reset to an uninitialised socket.
+  void reset()
+  {
+    if (socket_ != invalid_socket)
+    {
+      asio::error_code ec;
+      socket_ops::state_type state = 0;
+      socket_ops::close(socket_, state, true, ec);
+      socket_ = invalid_socket;
+    }
+  }
+
+  // Reset to take ownership of the specified socket.
+  void reset(socket_type s)
+  {
+    reset();
+    socket_ = s;
+  }
+
+  // Release ownership of the socket.
+  socket_type release()
+  {
+    socket_type tmp = socket_;
+    socket_ = invalid_socket;
+    return tmp;
+  }
+
+private:
+  // The underlying socket.
+  socket_type socket_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_SOCKET_HOLDER_HPP
diff --git a/asio-1.10.6/include/asio/detail/socket_ops.hpp b/asio-1.10.6/include/asio/detail/socket_ops.hpp
new file mode 100644
index 0000000..e37a136
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/socket_ops.hpp
@@ -0,0 +1,272 @@
+//
+// detail/socket_ops.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SOCKET_OPS_HPP
+#define ASIO_DETAIL_SOCKET_OPS_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#include "asio/error_code.hpp"
+#include "asio/detail/shared_ptr.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/weak_ptr.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+namespace socket_ops {
+
+// Socket state bits.
+enum
+{
+  // The user wants a non-blocking socket.
+  user_set_non_blocking = 1,
+
+  // The socket has been set non-blocking.
+  internal_non_blocking = 2,
+
+  // Helper "state" used to determine whether the socket is non-blocking.
+  non_blocking = user_set_non_blocking | internal_non_blocking,
+
+  // User wants connection_aborted errors, which are disabled by default.
+  enable_connection_aborted = 4,
+
+  // The user set the linger option. Needs to be checked when closing.
+  user_set_linger = 8,
+
+  // The socket is stream-oriented.
+  stream_oriented = 16,
+
+  // The socket is datagram-oriented.
+  datagram_oriented = 32,
+
+  // The socket may have been dup()-ed.
+  possible_dup = 64
+};
+
+typedef unsigned char state_type;
+
+struct noop_deleter { void operator()(void*) {} };
+typedef shared_ptr<void> shared_cancel_token_type;
+typedef weak_ptr<void> weak_cancel_token_type;
+
+
+ASIO_DECL socket_type accept(socket_type s, socket_addr_type* addr,
+    std::size_t* addrlen, asio::error_code& ec);
+
+ASIO_DECL socket_type sync_accept(socket_type s,
+    state_type state, socket_addr_type* addr,
+    std::size_t* addrlen, asio::error_code& ec);
+
+
+ASIO_DECL bool non_blocking_accept(socket_type s,
+    state_type state, socket_addr_type* addr, std::size_t* addrlen,
+    asio::error_code& ec, socket_type& new_socket);
+
+
+ASIO_DECL int bind(socket_type s, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec);
+
+ASIO_DECL int close(socket_type s, state_type& state,
+    bool destruction, asio::error_code& ec);
+
+ASIO_DECL bool set_user_non_blocking(socket_type s,
+    state_type& state, bool value, asio::error_code& ec);
+
+ASIO_DECL bool set_internal_non_blocking(socket_type s,
+    state_type& state, bool value, asio::error_code& ec);
+
+ASIO_DECL int shutdown(socket_type s,
+    int what, asio::error_code& ec);
+
+ASIO_DECL int connect(socket_type s, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec);
+
+ASIO_DECL void sync_connect(socket_type s, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec);
+
+
+ASIO_DECL bool non_blocking_connect(socket_type s,
+    asio::error_code& ec);
+
+ASIO_DECL int socketpair(int af, int type, int protocol,
+    socket_type sv[2], asio::error_code& ec);
+
+ASIO_DECL bool sockatmark(socket_type s, asio::error_code& ec);
+
+ASIO_DECL size_t available(socket_type s, asio::error_code& ec);
+
+ASIO_DECL int listen(socket_type s,
+    int backlog, asio::error_code& ec);
+
+typedef iovec buf;
+
+ASIO_DECL void init_buf(buf& b, void* data, size_t size);
+
+ASIO_DECL void init_buf(buf& b, const void* data, size_t size);
+
+ASIO_DECL signed_size_type recv(socket_type s, buf* bufs,
+    size_t count, int flags, asio::error_code& ec);
+
+ASIO_DECL size_t sync_recv(socket_type s, state_type state, buf* bufs,
+    size_t count, int flags, bool all_empty, asio::error_code& ec);
+
+
+ASIO_DECL bool non_blocking_recv(socket_type s,
+    buf* bufs, size_t count, int flags, bool is_stream,
+    asio::error_code& ec, size_t& bytes_transferred);
+
+
+ASIO_DECL signed_size_type recvfrom(socket_type s, buf* bufs,
+    size_t count, int flags, socket_addr_type* addr,
+    std::size_t* addrlen, asio::error_code& ec);
+
+ASIO_DECL size_t sync_recvfrom(socket_type s, state_type state,
+    buf* bufs, size_t count, int flags, socket_addr_type* addr,
+    std::size_t* addrlen, asio::error_code& ec);
+
+
+ASIO_DECL bool non_blocking_recvfrom(socket_type s,
+    buf* bufs, size_t count, int flags,
+    socket_addr_type* addr, std::size_t* addrlen,
+    asio::error_code& ec, size_t& bytes_transferred);
+
+
+ASIO_DECL signed_size_type recvmsg(socket_type s, buf* bufs,
+    size_t count, int in_flags, int& out_flags,
+    asio::error_code& ec);
+
+ASIO_DECL size_t sync_recvmsg(socket_type s, state_type state,
+    buf* bufs, size_t count, int in_flags, int& out_flags,
+    asio::error_code& ec);
+
+
+ASIO_DECL bool non_blocking_recvmsg(socket_type s,
+    buf* bufs, size_t count, int in_flags, int& out_flags,
+    asio::error_code& ec, size_t& bytes_transferred);
+
+
+ASIO_DECL signed_size_type send(socket_type s, const buf* bufs,
+    size_t count, int flags, asio::error_code& ec);
+
+ASIO_DECL size_t sync_send(socket_type s, state_type state,
+    const buf* bufs, size_t count, int flags,
+    bool all_empty, asio::error_code& ec);
+
+
+ASIO_DECL bool non_blocking_send(socket_type s,
+    const buf* bufs, size_t count, int flags,
+    asio::error_code& ec, size_t& bytes_transferred);
+
+
+ASIO_DECL signed_size_type sendto(socket_type s, const buf* bufs,
+    size_t count, int flags, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec);
+
+ASIO_DECL size_t sync_sendto(socket_type s, state_type state,
+    const buf* bufs, size_t count, int flags, const socket_addr_type* addr,
+    std::size_t addrlen, asio::error_code& ec);
+
+
+ASIO_DECL bool non_blocking_sendto(socket_type s,
+    const buf* bufs, size_t count, int flags,
+    const socket_addr_type* addr, std::size_t addrlen,
+    asio::error_code& ec, size_t& bytes_transferred);
+
+
+ASIO_DECL socket_type socket(int af, int type, int protocol,
+    asio::error_code& ec);
+
+ASIO_DECL int setsockopt(socket_type s, state_type& state,
+    int level, int optname, const void* optval,
+    std::size_t optlen, asio::error_code& ec);
+
+ASIO_DECL int getsockopt(socket_type s, state_type state,
+    int level, int optname, void* optval,
+    size_t* optlen, asio::error_code& ec);
+
+ASIO_DECL int getpeername(socket_type s, socket_addr_type* addr,
+    std::size_t* addrlen, bool cached, asio::error_code& ec);
+
+ASIO_DECL int getsockname(socket_type s, socket_addr_type* addr,
+    std::size_t* addrlen, asio::error_code& ec);
+
+ASIO_DECL int ioctl(socket_type s, state_type& state,
+    int cmd, ioctl_arg_type* arg, asio::error_code& ec);
+
+ASIO_DECL int select(int nfds, fd_set* readfds, fd_set* writefds,
+    fd_set* exceptfds, timeval* timeout, asio::error_code& ec);
+
+ASIO_DECL int poll_read(socket_type s,
+    state_type state, asio::error_code& ec);
+
+ASIO_DECL int poll_write(socket_type s,
+    state_type state, asio::error_code& ec);
+
+ASIO_DECL int poll_connect(socket_type s, asio::error_code& ec);
+
+
+ASIO_DECL const char* inet_ntop(int af, const void* src, char* dest,
+    size_t length, unsigned long scope_id, asio::error_code& ec);
+
+ASIO_DECL int inet_pton(int af, const char* src, void* dest,
+    unsigned long* scope_id, asio::error_code& ec);
+
+ASIO_DECL int gethostname(char* name,
+    int namelen, asio::error_code& ec);
+
+
+ASIO_DECL asio::error_code getaddrinfo(const char* host,
+    const char* service, const addrinfo_type& hints,
+    addrinfo_type** result, asio::error_code& ec);
+
+ASIO_DECL asio::error_code background_getaddrinfo(
+    const weak_cancel_token_type& cancel_token, const char* host,
+    const char* service, const addrinfo_type& hints,
+    addrinfo_type** result, asio::error_code& ec);
+
+ASIO_DECL void freeaddrinfo(addrinfo_type* ai);
+
+ASIO_DECL asio::error_code getnameinfo(
+    const socket_addr_type* addr, std::size_t addrlen,
+    char* host, std::size_t hostlen, char* serv,
+    std::size_t servlen, int flags, asio::error_code& ec);
+
+ASIO_DECL asio::error_code sync_getnameinfo(
+    const socket_addr_type* addr, std::size_t addrlen,
+    char* host, std::size_t hostlen, char* serv,
+    std::size_t servlen, int sock_type, asio::error_code& ec);
+
+ASIO_DECL asio::error_code background_getnameinfo(
+    const weak_cancel_token_type& cancel_token,
+    const socket_addr_type* addr, std::size_t addrlen,
+    char* host, std::size_t hostlen, char* serv,
+    std::size_t servlen, int sock_type, asio::error_code& ec);
+
+
+ASIO_DECL u_long_type network_to_host_long(u_long_type value);
+
+ASIO_DECL u_long_type host_to_network_long(u_long_type value);
+
+ASIO_DECL u_short_type network_to_host_short(u_short_type value);
+
+ASIO_DECL u_short_type host_to_network_short(u_short_type value);
+
+} // namespace socket_ops
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/socket_ops.ipp"
+
+#endif // ASIO_DETAIL_SOCKET_OPS_HPP
diff --git a/asio-1.10.6/include/asio/detail/socket_option.hpp b/asio-1.10.6/include/asio/detail/socket_option.hpp
new file mode 100644
index 0000000..ae1efeb
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/socket_option.hpp
@@ -0,0 +1,309 @@
+//
+// detail/socket_option.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SOCKET_OPTION_HPP
+#define ASIO_DETAIL_SOCKET_OPTION_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include <stdexcept>
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/throw_exception.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+namespace socket_option {
+
+// Helper template for implementing boolean-based options.
+template <int Level, int Name>
+class boolean
+{
+public:
+  // Default constructor.
+  boolean()
+    : value_(0)
+  {
+  }
+
+  // Construct with a specific option value.
+  explicit boolean(bool v)
+    : value_(v ? 1 : 0)
+  {
+  }
+
+  // Set the current value of the boolean.
+  boolean& operator=(bool v)
+  {
+    value_ = v ? 1 : 0;
+    return *this;
+  }
+
+  // Get the current value of the boolean.
+  bool value() const
+  {
+    return !!value_;
+  }
+
+  // Convert to bool.
+  operator bool() const
+  {
+    return !!value_;
+  }
+
+  // Test for false.
+  bool operator!() const
+  {
+    return !value_;
+  }
+
+  // Get the level of the socket option.
+  template <typename Protocol>
+  int level(const Protocol&) const
+  {
+    return Level;
+  }
+
+  // Get the name of the socket option.
+  template <typename Protocol>
+  int name(const Protocol&) const
+  {
+    return Name;
+  }
+
+  // Get the address of the boolean data.
+  template <typename Protocol>
+  int* data(const Protocol&)
+  {
+    return &value_;
+  }
+
+  // Get the address of the boolean data.
+  template <typename Protocol>
+  const int* data(const Protocol&) const
+  {
+    return &value_;
+  }
+
+  // Get the size of the boolean data.
+  template <typename Protocol>
+  std::size_t size(const Protocol&) const
+  {
+    return sizeof(value_);
+  }
+
+  // Set the size of the boolean data.
+  template <typename Protocol>
+  void resize(const Protocol&, std::size_t s)
+  {
+    // On some platforms (e.g. Windows Vista), the getsockopt function will
+    // return the size of a boolean socket option as one byte, even though a
+    // four byte integer was passed in.
+    switch (s)
+    {
+    case sizeof(char):
+      value_ = *reinterpret_cast<char*>(&value_) ? 1 : 0;
+      break;
+    case sizeof(value_):
+      break;
+    default:
+      {
+        std::length_error ex("boolean socket option resize");
+        asio::detail::throw_exception(ex);
+      }
+    }
+  }
+
+private:
+  int value_;
+};
+
+// Helper template for implementing integer options.
+template <int Level, int Name>
+class integer
+{
+public:
+  // Default constructor.
+  integer()
+    : value_(0)
+  {
+  }
+
+  // Construct with a specific option value.
+  explicit integer(int v)
+    : value_(v)
+  {
+  }
+
+  // Set the value of the int option.
+  integer& operator=(int v)
+  {
+    value_ = v;
+    return *this;
+  }
+
+  // Get the current value of the int option.
+  int value() const
+  {
+    return value_;
+  }
+
+  // Get the level of the socket option.
+  template <typename Protocol>
+  int level(const Protocol&) const
+  {
+    return Level;
+  }
+
+  // Get the name of the socket option.
+  template <typename Protocol>
+  int name(const Protocol&) const
+  {
+    return Name;
+  }
+
+  // Get the address of the int data.
+  template <typename Protocol>
+  int* data(const Protocol&)
+  {
+    return &value_;
+  }
+
+  // Get the address of the int data.
+  template <typename Protocol>
+  const int* data(const Protocol&) const
+  {
+    return &value_;
+  }
+
+  // Get the size of the int data.
+  template <typename Protocol>
+  std::size_t size(const Protocol&) const
+  {
+    return sizeof(value_);
+  }
+
+  // Set the size of the int data.
+  template <typename Protocol>
+  void resize(const Protocol&, std::size_t s)
+  {
+    if (s != sizeof(value_))
+    {
+      std::length_error ex("integer socket option resize");
+      asio::detail::throw_exception(ex);
+    }
+  }
+
+private:
+  int value_;
+};
+
+// Helper template for implementing linger options.
+template <int Level, int Name>
+class linger
+{
+public:
+  // Default constructor.
+  linger()
+  {
+    value_.l_onoff = 0;
+    value_.l_linger = 0;
+  }
+
+  // Construct with specific option values.
+  linger(bool e, int t)
+  {
+    enabled(e);
+    timeout ASIO_PREVENT_MACRO_SUBSTITUTION(t);
+  }
+
+  // Set the value for whether linger is enabled.
+  void enabled(bool value)
+  {
+    value_.l_onoff = value ? 1 : 0;
+  }
+
+  // Get the value for whether linger is enabled.
+  bool enabled() const
+  {
+    return value_.l_onoff != 0;
+  }
+
+  // Set the value for the linger timeout.
+  void timeout ASIO_PREVENT_MACRO_SUBSTITUTION(int value)
+  {
+    value_.l_linger = value;
+  }
+
+  // Get the value for the linger timeout.
+  int timeout ASIO_PREVENT_MACRO_SUBSTITUTION() const
+  {
+    return static_cast<int>(value_.l_linger);
+  }
+
+  // Get the level of the socket option.
+  template <typename Protocol>
+  int level(const Protocol&) const
+  {
+    return Level;
+  }
+
+  // Get the name of the socket option.
+  template <typename Protocol>
+  int name(const Protocol&) const
+  {
+    return Name;
+  }
+
+  // Get the address of the linger data.
+  template <typename Protocol>
+  detail::linger_type* data(const Protocol&)
+  {
+    return &value_;
+  }
+
+  // Get the address of the linger data.
+  template <typename Protocol>
+  const detail::linger_type* data(const Protocol&) const
+  {
+    return &value_;
+  }
+
+  // Get the size of the linger data.
+  template <typename Protocol>
+  std::size_t size(const Protocol&) const
+  {
+    return sizeof(value_);
+  }
+
+  // Set the size of the int data.
+  template <typename Protocol>
+  void resize(const Protocol&, std::size_t s)
+  {
+    if (s != sizeof(value_))
+    {
+      std::length_error ex("linger socket option resize");
+      asio::detail::throw_exception(ex);
+    }
+  }
+
+private:
+  detail::linger_type value_;
+};
+
+} // namespace socket_option
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_SOCKET_OPTION_HPP
diff --git a/asio-1.10.6/include/asio/detail/socket_types.hpp b/asio-1.10.6/include/asio/detail/socket_types.hpp
new file mode 100644
index 0000000..379f035
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/socket_types.hpp
@@ -0,0 +1,173 @@
+//
+// detail/socket_types.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_SOCKET_TYPES_HPP
+#define ASIO_DETAIL_SOCKET_TYPES_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <sys/ioctl.h>
+#  include <sys/poll.h>
+# include <sys/types.h>
+# include <sys/stat.h>
+# include <fcntl.h>
+# if defined(__hpux)
+#  include <sys/time.h>
+# endif
+# if !defined(__hpux) || defined(__SELECT)
+#  include <sys/select.h>
+# endif
+# include <sys/socket.h>
+# include <sys/uio.h>
+# include <sys/un.h>
+# include <netinet/in.h>
+#  include <netinet/tcp.h>
+# include <arpa/inet.h>
+# include <netdb.h>
+# include <net/if.h>
+# include <limits.h>
+# if defined(__sun)
+#  include <sys/filio.h>
+#  include <sys/sockio.h>
+# endif
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+typedef int socket_type;
+const int invalid_socket = -1;
+const int socket_error_retval = -1;
+const int max_addr_v4_str_len = INET_ADDRSTRLEN;
+#if defined(INET6_ADDRSTRLEN)
+const int max_addr_v6_str_len = INET6_ADDRSTRLEN + 1 + IF_NAMESIZE;
+#else // defined(INET6_ADDRSTRLEN)
+const int max_addr_v6_str_len = 256;
+#endif // defined(INET6_ADDRSTRLEN)
+typedef sockaddr socket_addr_type;
+typedef in_addr in4_addr_type;
+# if defined(__hpux)
+// HP-UX doesn't provide ip_mreq when _XOPEN_SOURCE_EXTENDED is defined.
+struct in4_mreq_type
+{
+  struct in_addr imr_multiaddr;
+  struct in_addr imr_interface;
+};
+# else
+typedef ip_mreq in4_mreq_type;
+# endif
+typedef sockaddr_in sockaddr_in4_type;
+typedef in6_addr in6_addr_type;
+typedef ipv6_mreq in6_mreq_type;
+typedef sockaddr_in6 sockaddr_in6_type;
+typedef sockaddr_storage sockaddr_storage_type;
+typedef sockaddr_un sockaddr_un_type;
+typedef addrinfo addrinfo_type;
+typedef ::linger linger_type;
+typedef int ioctl_arg_type;
+typedef uint32_t u_long_type;
+typedef uint16_t u_short_type;
+#if defined(ASIO_HAS_SSIZE_T)
+typedef ssize_t signed_size_type;
+#else // defined(ASIO_HAS_SSIZE_T)
+typedef int signed_size_type;
+#endif // defined(ASIO_HAS_SSIZE_T)
+# define ASIO_OS_DEF(c) ASIO_OS_DEF_##c
+# define ASIO_OS_DEF_AF_UNSPEC AF_UNSPEC
+# define ASIO_OS_DEF_AF_INET AF_INET
+# define ASIO_OS_DEF_AF_INET6 AF_INET6
+# define ASIO_OS_DEF_SOCK_STREAM SOCK_STREAM
+# define ASIO_OS_DEF_SOCK_DGRAM SOCK_DGRAM
+# define ASIO_OS_DEF_SOCK_RAW SOCK_RAW
+# define ASIO_OS_DEF_SOCK_SEQPACKET SOCK_SEQPACKET
+# define ASIO_OS_DEF_IPPROTO_IP IPPROTO_IP
+# define ASIO_OS_DEF_IPPROTO_IPV6 IPPROTO_IPV6
+# define ASIO_OS_DEF_IPPROTO_TCP IPPROTO_TCP
+# define ASIO_OS_DEF_IPPROTO_UDP IPPROTO_UDP
+# define ASIO_OS_DEF_IPPROTO_ICMP IPPROTO_ICMP
+# define ASIO_OS_DEF_IPPROTO_ICMPV6 IPPROTO_ICMPV6
+# define ASIO_OS_DEF_FIONBIO FIONBIO
+# define ASIO_OS_DEF_FIONREAD FIONREAD
+# define ASIO_OS_DEF_INADDR_ANY INADDR_ANY
+# define ASIO_OS_DEF_MSG_OOB MSG_OOB
+# define ASIO_OS_DEF_MSG_PEEK MSG_PEEK
+# define ASIO_OS_DEF_MSG_DONTROUTE MSG_DONTROUTE
+# define ASIO_OS_DEF_MSG_EOR MSG_EOR
+# define ASIO_OS_DEF_SHUT_RD SHUT_RD
+# define ASIO_OS_DEF_SHUT_WR SHUT_WR
+# define ASIO_OS_DEF_SHUT_RDWR SHUT_RDWR
+# define ASIO_OS_DEF_SOMAXCONN SOMAXCONN
+# define ASIO_OS_DEF_SOL_SOCKET SOL_SOCKET
+# define ASIO_OS_DEF_SO_BROADCAST SO_BROADCAST
+# define ASIO_OS_DEF_SO_DEBUG SO_DEBUG
+# define ASIO_OS_DEF_SO_DONTROUTE SO_DONTROUTE
+# define ASIO_OS_DEF_SO_KEEPALIVE SO_KEEPALIVE
+# define ASIO_OS_DEF_SO_LINGER SO_LINGER
+# define ASIO_OS_DEF_SO_SNDBUF SO_SNDBUF
+# define ASIO_OS_DEF_SO_RCVBUF SO_RCVBUF
+# define ASIO_OS_DEF_SO_SNDLOWAT SO_SNDLOWAT
+# define ASIO_OS_DEF_SO_RCVLOWAT SO_RCVLOWAT
+# define ASIO_OS_DEF_SO_REUSEADDR SO_REUSEADDR
+# define ASIO_OS_DEF_TCP_NODELAY TCP_NODELAY
+# define ASIO_OS_DEF_IP_MULTICAST_IF IP_MULTICAST_IF
+# define ASIO_OS_DEF_IP_MULTICAST_TTL IP_MULTICAST_TTL
+# define ASIO_OS_DEF_IP_MULTICAST_LOOP IP_MULTICAST_LOOP
+# define ASIO_OS_DEF_IP_ADD_MEMBERSHIP IP_ADD_MEMBERSHIP
+# define ASIO_OS_DEF_IP_DROP_MEMBERSHIP IP_DROP_MEMBERSHIP
+# define ASIO_OS_DEF_IP_TTL IP_TTL
+# define ASIO_OS_DEF_IPV6_UNICAST_HOPS IPV6_UNICAST_HOPS
+# define ASIO_OS_DEF_IPV6_MULTICAST_IF IPV6_MULTICAST_IF
+# define ASIO_OS_DEF_IPV6_MULTICAST_HOPS IPV6_MULTICAST_HOPS
+# define ASIO_OS_DEF_IPV6_MULTICAST_LOOP IPV6_MULTICAST_LOOP
+# define ASIO_OS_DEF_IPV6_JOIN_GROUP IPV6_JOIN_GROUP
+# define ASIO_OS_DEF_IPV6_LEAVE_GROUP IPV6_LEAVE_GROUP
+# define ASIO_OS_DEF_AI_CANONNAME AI_CANONNAME
+# define ASIO_OS_DEF_AI_PASSIVE AI_PASSIVE
+# define ASIO_OS_DEF_AI_NUMERICHOST AI_NUMERICHOST
+# if defined(AI_NUMERICSERV)
+#  define ASIO_OS_DEF_AI_NUMERICSERV AI_NUMERICSERV
+# else
+#  define ASIO_OS_DEF_AI_NUMERICSERV 0
+# endif
+// Note: QNX Neutrino 6.3 defines AI_V4MAPPED, AI_ALL and AI_ADDRCONFIG but
+// does not implement them. Therefore they are specifically excluded here.
+# if defined(AI_V4MAPPED) && !defined(__QNXNTO__)
+#  define ASIO_OS_DEF_AI_V4MAPPED AI_V4MAPPED
+# else
+#  define ASIO_OS_DEF_AI_V4MAPPED 0
+# endif
+# if defined(AI_ALL) && !defined(__QNXNTO__)
+#  define ASIO_OS_DEF_AI_ALL AI_ALL
+# else
+#  define ASIO_OS_DEF_AI_ALL 0
+# endif
+# if defined(AI_ADDRCONFIG) && !defined(__QNXNTO__)
+#  define ASIO_OS_DEF_AI_ADDRCONFIG AI_ADDRCONFIG
+# else
+#  define ASIO_OS_DEF_AI_ADDRCONFIG 0
+# endif
+# if defined(IOV_MAX)
+const int max_iov_len = IOV_MAX;
+# else
+// POSIX platforms are not required to define IOV_MAX.
+const int max_iov_len = 16;
+# endif
+const int custom_socket_option_level = 0xA5100000;
+const int enable_connection_aborted_option = 1;
+const int always_fail_option = 2;
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_SOCKET_TYPES_HPP
diff --git a/asio-1.10.6/include/asio/detail/task_io_service.hpp b/asio-1.10.6/include/asio/detail/task_io_service.hpp
new file mode 100644
index 0000000..ea05242
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/task_io_service.hpp
@@ -0,0 +1,194 @@
+//
+// detail/task_io_service.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_TASK_IO_SERVICE_HPP
+#define ASIO_DETAIL_TASK_IO_SERVICE_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#include "asio/error_code.hpp"
+#include "asio/io_service.hpp"
+#include "asio/detail/atomic_count.hpp"
+#include "asio/detail/call_stack.hpp"
+#include "asio/detail/event.hpp"
+#include "asio/detail/mutex.hpp"
+#include "asio/detail/op_queue.hpp"
+#include "asio/detail/reactor_fwd.hpp"
+#include "asio/detail/task_io_service_operation.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+struct task_io_service_thread_info;
+
+class task_io_service
+  : public asio::detail::service_base<task_io_service>
+{
+public:
+  typedef task_io_service_operation operation;
+
+  // Constructor. Specifies the number of concurrent threads that are likely to
+  // run the io_service. If set to 1 certain optimisation are performed.
+  ASIO_DECL task_io_service(asio::io_service& io_service,
+      std::size_t concurrency_hint = 0);
+
+  // Destroy all user-defined handler objects owned by the service.
+  ASIO_DECL void shutdown_service();
+
+  // Initialise the task, if required.
+  ASIO_DECL void init_task();
+
+  // Run the event loop until interrupted or no more work.
+  ASIO_DECL std::size_t run(asio::error_code& ec);
+
+  // Run until interrupted or one operation is performed.
+  ASIO_DECL std::size_t run_one(asio::error_code& ec);
+
+  // Poll for operations without blocking.
+  ASIO_DECL std::size_t poll(asio::error_code& ec);
+
+  // Poll for one operation without blocking.
+  ASIO_DECL std::size_t poll_one(asio::error_code& ec);
+
+  // Interrupt the event processing loop.
+  ASIO_DECL void stop();
+
+  // Determine whether the io_service is stopped.
+  ASIO_DECL bool stopped() const;
+
+  // Reset in preparation for a subsequent run invocation.
+  ASIO_DECL void reset();
+
+  // Notify that some work has started.
+  void work_started()
+  {
+    ++outstanding_work_;
+  }
+
+  // Notify that some work has finished.
+  void work_finished()
+  {
+    if (--outstanding_work_ == 0)
+      stop();
+  }
+
+  // Return whether a handler can be dispatched immediately.
+  bool can_dispatch()
+  {
+    return thread_call_stack::contains(this) != 0;
+  }
+
+  // Request invocation of the given handler.
+  template <typename Handler>
+  void dispatch(Handler& handler);
+
+  // Request invocation of the given handler and return immediately.
+  template <typename Handler>
+  void post(Handler& handler);
+
+  // Request invocation of the given operation and return immediately. Assumes
+  // that work_started() has not yet been called for the operation.
+  ASIO_DECL void post_immediate_completion(
+      operation* op, bool is_continuation);
+
+  // Request invocation of the given operation and return immediately. Assumes
+  // that work_started() was previously called for the operation.
+  ASIO_DECL void post_deferred_completion(operation* op);
+
+  // Request invocation of the given operations and return immediately. Assumes
+  // that work_started() was previously called for each operation.
+  ASIO_DECL void post_deferred_completions(op_queue<operation>& ops);
+
+  // Process unfinished operations as part of a shutdown_service operation.
+  // Assumes that work_started() was previously called for the operations.
+  ASIO_DECL void abandon_operations(op_queue<operation>& ops);
+
+private:
+  // Structure containing thread-specific data.
+  typedef task_io_service_thread_info thread_info;
+
+  // Enqueue the given operation following a failed attempt to dispatch the
+  // operation for immediate invocation.
+  ASIO_DECL void do_dispatch(operation* op);
+
+  // Run at most one operation. May block.
+  ASIO_DECL std::size_t do_run_one(mutex::scoped_lock& lock,
+      thread_info& this_thread, const asio::error_code& ec);
+
+  // Poll for at most one operation.
+  ASIO_DECL std::size_t do_poll_one(mutex::scoped_lock& lock,
+      thread_info& this_thread, const asio::error_code& ec);
+
+  // Stop the task and all idle threads.
+  ASIO_DECL void stop_all_threads(mutex::scoped_lock& lock);
+
+  // Wake a single idle thread, or the task, and always unlock the mutex.
+  ASIO_DECL void wake_one_thread_and_unlock(
+      mutex::scoped_lock& lock);
+
+  // Helper class to perform task-related operations on block exit.
+  struct task_cleanup;
+  friend struct task_cleanup;
+
+  // Helper class to call work-related operations on block exit.
+  struct work_cleanup;
+  friend struct work_cleanup;
+
+  // Whether to optimise for single-threaded use cases.
+  const bool one_thread_;
+
+  // Mutex to protect access to internal data.
+  mutable mutex mutex_;
+
+  // Event to wake up blocked threads.
+  event wakeup_event_;
+
+  // The task to be run by this service.
+  reactor* task_;
+
+  // Operation object to represent the position of the task in the queue.
+  struct task_operation : operation
+  {
+    task_operation() : operation(0) {}
+  } task_operation_;
+
+  // Whether the task has been interrupted.
+  bool task_interrupted_;
+
+  // The count of unfinished work.
+  atomic_count outstanding_work_;
+
+  // The queue of handlers that are ready to be delivered.
+  op_queue<operation> op_queue_;
+
+  // Flag to indicate that the dispatcher has been stopped.
+  bool stopped_;
+
+  // Flag to indicate that the dispatcher has been shut down.
+  bool shutdown_;
+
+  // Per-thread call stack to track the state of each thread in the io_service.
+  typedef call_stack<task_io_service, thread_info> thread_call_stack;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/detail/impl/task_io_service.hpp"
+# include "asio/detail/impl/task_io_service.ipp"
+
+
+#endif // ASIO_DETAIL_TASK_IO_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/detail/task_io_service_operation.hpp b/asio-1.10.6/include/asio/detail/task_io_service_operation.hpp
new file mode 100644
index 0000000..0885ef0
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/task_io_service_operation.hpp
@@ -0,0 +1,73 @@
+//
+// detail/task_io_service_operation.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_TASK_IO_SERVICE_OPERATION_HPP
+#define ASIO_DETAIL_TASK_IO_SERVICE_OPERATION_HPP
+
+
+#include "asio/error_code.hpp"
+#include "asio/detail/handler_tracking.hpp"
+#include "asio/detail/op_queue.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class task_io_service;
+
+// Base class for all operations. A function pointer is used instead of virtual
+// functions to avoid the associated overhead.
+class task_io_service_operation ASIO_INHERIT_TRACKED_HANDLER
+{
+public:
+  void complete(task_io_service& owner,
+      const asio::error_code& ec, std::size_t bytes_transferred)
+  {
+    func_(&owner, this, ec, bytes_transferred);
+  }
+
+  void destroy()
+  {
+    func_(0, this, asio::error_code(), 0);
+  }
+
+protected:
+  typedef void (*func_type)(task_io_service*,
+      task_io_service_operation*,
+      const asio::error_code&, std::size_t);
+
+  task_io_service_operation(func_type func)
+    : next_(0),
+      func_(func),
+      task_result_(0)
+  {
+  }
+
+  // Prevents deletion through this type.
+  ~task_io_service_operation()
+  {
+  }
+
+private:
+  friend class op_queue_access;
+  task_io_service_operation* next_;
+  func_type func_;
+protected:
+  friend class task_io_service;
+  unsigned int task_result_; // Passed into bytes transferred.
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_TASK_IO_SERVICE_OPERATION_HPP
diff --git a/asio-1.10.6/include/asio/detail/task_io_service_thread_info.hpp b/asio-1.10.6/include/asio/detail/task_io_service_thread_info.hpp
new file mode 100644
index 0000000..7b892e8
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/task_io_service_thread_info.hpp
@@ -0,0 +1,37 @@
+//
+// detail/task_io_service_thread_info.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_TASK_IO_SERVICE_THREAD_INFO_HPP
+#define ASIO_DETAIL_TASK_IO_SERVICE_THREAD_INFO_HPP
+
+
+#include "asio/detail/op_queue.hpp"
+#include "asio/detail/thread_info_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class task_io_service;
+class task_io_service_operation;
+
+struct task_io_service_thread_info : public thread_info_base
+{
+  op_queue<task_io_service_operation> private_op_queue;
+  long private_outstanding_work;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_TASK_IO_SERVICE_THREAD_INFO_HPP
diff --git a/asio-1.10.6/include/asio/detail/thread.hpp b/asio-1.10.6/include/asio/detail/thread.hpp
new file mode 100644
index 0000000..1bbed33
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/thread.hpp
@@ -0,0 +1,35 @@
+//
+// detail/thread.hpp
+// ~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_THREAD_HPP
+#define ASIO_DETAIL_THREAD_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if   defined(ASIO_HAS_PTHREADS)
+# include "asio/detail/posix_thread.hpp"
+#else
+# include "asio/detail/std_thread.hpp"
+#endif
+
+namespace asio {
+namespace detail {
+
+#if   defined(ASIO_HAS_PTHREADS)
+typedef posix_thread thread;
+#else
+typedef std_thread thread;
+#endif
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_THREAD_HPP
diff --git a/asio-1.10.6/include/asio/detail/thread_info_base.hpp b/asio-1.10.6/include/asio/detail/thread_info_base.hpp
new file mode 100644
index 0000000..5cfdbef
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/thread_info_base.hpp
@@ -0,0 +1,88 @@
+//
+// detail/thread_info_base.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_THREAD_INFO_BASE_HPP
+#define ASIO_DETAIL_THREAD_INFO_BASE_HPP
+
+
+#include <climits>
+#include <cstddef>
+#include "asio/detail/noncopyable.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class thread_info_base
+  : private noncopyable
+{
+public:
+  thread_info_base()
+    : reusable_memory_(0)
+  {
+  }
+
+  ~thread_info_base()
+  {
+    if (reusable_memory_)
+      ::operator delete(reusable_memory_);
+  }
+
+  static void* allocate(thread_info_base* this_thread, std::size_t size)
+  {
+    if (this_thread && this_thread->reusable_memory_)
+    {
+      void* const pointer = this_thread->reusable_memory_;
+      this_thread->reusable_memory_ = 0;
+
+      unsigned char* const mem = static_cast<unsigned char*>(pointer);
+      if (static_cast<std::size_t>(mem[0]) >= size)
+      {
+        mem[size] = mem[0];
+        return pointer;
+      }
+
+      ::operator delete(pointer);
+    }
+
+    void* const pointer = ::operator new(size + 1);
+    unsigned char* const mem = static_cast<unsigned char*>(pointer);
+    mem[size] = (size <= UCHAR_MAX) ? static_cast<unsigned char>(size) : 0;
+    return pointer;
+  }
+
+  static void deallocate(thread_info_base* this_thread,
+      void* pointer, std::size_t size)
+  {
+    if (size <= UCHAR_MAX)
+    {
+      if (this_thread && this_thread->reusable_memory_ == 0)
+      {
+        unsigned char* const mem = static_cast<unsigned char*>(pointer);
+        mem[0] = mem[size];
+        this_thread->reusable_memory_ = pointer;
+        return;
+      }
+    }
+
+    ::operator delete(pointer);
+  }
+
+private:
+  void* reusable_memory_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_THREAD_INFO_BASE_HPP
diff --git a/asio-1.10.6/include/asio/detail/throw_error.hpp b/asio-1.10.6/include/asio/detail/throw_error.hpp
new file mode 100644
index 0000000..2718080
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/throw_error.hpp
@@ -0,0 +1,48 @@
+//
+// detail/throw_error.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_THROW_ERROR_HPP
+#define ASIO_DETAIL_THROW_ERROR_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/error_code.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+ASIO_DECL void do_throw_error(const asio::error_code& err);
+
+ASIO_DECL void do_throw_error(const asio::error_code& err,
+    const char* location);
+
+inline void throw_error(const asio::error_code& err)
+{
+  if (err)
+    do_throw_error(err);
+}
+
+inline void throw_error(const asio::error_code& err,
+    const char* location)
+{
+  if (err)
+    do_throw_error(err, location);
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/throw_error.ipp"
+
+#endif // ASIO_DETAIL_THROW_ERROR_HPP
diff --git a/asio-1.10.6/include/asio/detail/throw_exception.hpp b/asio-1.10.6/include/asio/detail/throw_exception.hpp
new file mode 100644
index 0000000..8a98a54
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/throw_exception.hpp
@@ -0,0 +1,41 @@
+//
+// detail/throw_exception.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_THROW_EXCEPTION_HPP
+#define ASIO_DETAIL_THROW_EXCEPTION_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+namespace asio {
+namespace detail {
+
+
+// Declare the throw_exception function for all targets.
+template <typename Exception>
+void throw_exception(const Exception& e);
+
+// Only define the throw_exception function when exceptions are enabled.
+// Otherwise, it is up to the application to provide a definition of this
+// function.
+# if !defined(ASIO_NO_EXCEPTIONS)
+template <typename Exception>
+void throw_exception(const Exception& e)
+{
+  throw e;
+}
+# endif // !defined(ASIO_NO_EXCEPTIONS)
+
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_THROW_EXCEPTION_HPP
diff --git a/asio-1.10.6/include/asio/detail/timer_queue_base.hpp b/asio-1.10.6/include/asio/detail/timer_queue_base.hpp
new file mode 100644
index 0000000..7dada35
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/timer_queue_base.hpp
@@ -0,0 +1,65 @@
+//
+// detail/timer_queue_base.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
+#define ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/op_queue.hpp"
+#include "asio/detail/operation.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class timer_queue_base
+  : private noncopyable
+{
+public:
+  // Constructor.
+  timer_queue_base() : next_(0) {}
+
+  // Destructor.
+  virtual ~timer_queue_base() {}
+
+  // Whether there are no timers in the queue.
+  virtual bool empty() const = 0;
+
+  // Get the time to wait until the next timer.
+  virtual long wait_duration_msec(long max_duration) const = 0;
+
+  // Get the time to wait until the next timer.
+  virtual long wait_duration_usec(long max_duration) const = 0;
+
+  // Dequeue all ready timers.
+  virtual void get_ready_timers(op_queue<operation>& ops) = 0;
+
+  // Dequeue all timers.
+  virtual void get_all_timers(op_queue<operation>& ops) = 0;
+
+private:
+  friend class timer_queue_set;
+
+  // Next timer queue in the set.
+  timer_queue_base* next_;
+};
+
+template <typename Time_Traits>
+class timer_queue;
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
diff --git a/asio-1.10.6/include/asio/detail/timer_queue_set.hpp b/asio-1.10.6/include/asio/detail/timer_queue_set.hpp
new file mode 100644
index 0000000..58ce356
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/timer_queue_set.hpp
@@ -0,0 +1,61 @@
+//
+// detail/timer_queue_set.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_TIMER_QUEUE_SET_HPP
+#define ASIO_DETAIL_TIMER_QUEUE_SET_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/timer_queue_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class timer_queue_set
+{
+public:
+  // Constructor.
+  ASIO_DECL timer_queue_set();
+
+  // Add a timer queue to the set.
+  ASIO_DECL void insert(timer_queue_base* q);
+
+  // Remove a timer queue from the set.
+  ASIO_DECL void erase(timer_queue_base* q);
+
+  // Determine whether all queues are empty.
+  ASIO_DECL bool all_empty() const;
+
+  // Get the wait duration in milliseconds.
+  ASIO_DECL long wait_duration_msec(long max_duration) const;
+
+  // Get the wait duration in microseconds.
+  ASIO_DECL long wait_duration_usec(long max_duration) const;
+
+  // Dequeue all ready timers.
+  ASIO_DECL void get_ready_timers(op_queue<operation>& ops);
+
+  // Dequeue all timers.
+  ASIO_DECL void get_all_timers(op_queue<operation>& ops);
+
+private:
+  timer_queue_base* first_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/impl/timer_queue_set.ipp"
+
+#endif // ASIO_DETAIL_TIMER_QUEUE_SET_HPP
diff --git a/asio-1.10.6/include/asio/detail/tss_ptr.hpp b/asio-1.10.6/include/asio/detail/tss_ptr.hpp
new file mode 100644
index 0000000..4562421
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/tss_ptr.hpp
@@ -0,0 +1,54 @@
+//
+// detail/tss_ptr.hpp
+// ~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_TSS_PTR_HPP
+#define ASIO_DETAIL_TSS_PTR_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#if   defined(ASIO_HAS_THREAD_KEYWORD_EXTENSION)
+# include "asio/detail/keyword_tss_ptr.hpp"
+#elif defined(ASIO_HAS_PTHREADS)
+# include "asio/detail/posix_tss_ptr.hpp"
+#else
+# error Only Windows and POSIX are supported!
+#endif
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename T>
+class tss_ptr
+#if   defined(ASIO_HAS_THREAD_KEYWORD_EXTENSION)
+  : public keyword_tss_ptr<T>
+#elif defined(ASIO_HAS_PTHREADS)
+  : public posix_tss_ptr<T>
+#endif
+{
+public:
+  void operator=(T* value)
+  {
+#if   defined(ASIO_HAS_THREAD_KEYWORD_EXTENSION)
+    keyword_tss_ptr<T>::operator=(value);
+#elif defined(ASIO_HAS_PTHREADS)
+    posix_tss_ptr<T>::operator=(value);
+#endif
+  }
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_TSS_PTR_HPP
diff --git a/asio-1.10.6/include/asio/detail/type_traits.hpp b/asio-1.10.6/include/asio/detail/type_traits.hpp
new file mode 100644
index 0000000..fd9adfd
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/type_traits.hpp
@@ -0,0 +1,32 @@
+//
+// detail/type_traits.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_TYPE_TRAITS_HPP
+#define ASIO_DETAIL_TYPE_TRAITS_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <type_traits>
+
+namespace asio {
+
+using std::add_const;
+using std::enable_if;
+using std::is_const;
+using std::is_convertible;
+using std::is_function;
+using std::is_same;
+using std::remove_pointer;
+using std::remove_reference;
+
+} // namespace asio
+
+#endif // ASIO_DETAIL_TYPE_TRAITS_HPP
diff --git a/asio-1.10.6/include/asio/detail/wait_op.hpp b/asio-1.10.6/include/asio/detail/wait_op.hpp
new file mode 100644
index 0000000..1c9a5c3
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/wait_op.hpp
@@ -0,0 +1,42 @@
+//
+// detail/wait_op.hpp
+// ~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_WAIT_OP_HPP
+#define ASIO_DETAIL_WAIT_OP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/operation.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class wait_op
+  : public operation
+{
+public:
+  // The error code to be passed to the completion handler.
+  asio::error_code ec_;
+
+protected:
+  wait_op(func_type func)
+    : operation(func)
+  {
+  }
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_WAIT_OP_HPP
diff --git a/asio-1.10.6/include/asio/detail/weak_ptr.hpp b/asio-1.10.6/include/asio/detail/weak_ptr.hpp
new file mode 100644
index 0000000..8bfe158
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/weak_ptr.hpp
@@ -0,0 +1,27 @@
+//
+// detail/weak_ptr.hpp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_WEAK_PTR_HPP
+#define ASIO_DETAIL_WEAK_PTR_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <memory>
+
+namespace asio {
+namespace detail {
+
+using std::weak_ptr;
+
+} // namespace detail
+} // namespace asio
+
+#endif // ASIO_DETAIL_WEAK_PTR_HPP
diff --git a/asio-1.10.6/include/asio/detail/win_fd_set_adapter.hpp b/asio-1.10.6/include/asio/detail/win_fd_set_adapter.hpp
new file mode 100644
index 0000000..db11607
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/win_fd_set_adapter.hpp
@@ -0,0 +1,18 @@
+//
+// detail/win_fd_set_adapter.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_WIN_FD_SET_ADAPTER_HPP
+#define ASIO_DETAIL_WIN_FD_SET_ADAPTER_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#endif // ASIO_DETAIL_WIN_FD_SET_ADAPTER_HPP
diff --git a/asio-1.10.6/include/asio/detail/winsock_init.hpp b/asio-1.10.6/include/asio/detail/winsock_init.hpp
new file mode 100644
index 0000000..eec46b9
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/winsock_init.hpp
@@ -0,0 +1,18 @@
+//
+// detail/winsock_init.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_WINSOCK_INIT_HPP
+#define ASIO_DETAIL_WINSOCK_INIT_HPP
+
+
+#include "asio/detail/config.hpp"
+
+
+#endif // ASIO_DETAIL_WINSOCK_INIT_HPP
diff --git a/asio-1.10.6/include/asio/detail/wrapped_handler.hpp b/asio-1.10.6/include/asio/detail/wrapped_handler.hpp
new file mode 100644
index 0000000..0d81363
--- /dev/null
+++ b/asio-1.10.6/include/asio/detail/wrapped_handler.hpp
@@ -0,0 +1,284 @@
+//
+// detail/wrapped_handler.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_WRAPPED_HANDLER_HPP
+#define ASIO_DETAIL_WRAPPED_HANDLER_HPP
+
+
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_cont_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+struct is_continuation_delegated
+{
+  template <typename Dispatcher, typename Handler>
+  bool operator()(Dispatcher&, Handler& handler) const
+  {
+    return asio_handler_cont_helpers::is_continuation(handler);
+  }
+};
+
+struct is_continuation_if_running
+{
+  template <typename Dispatcher, typename Handler>
+  bool operator()(Dispatcher& dispatcher, Handler&) const
+  {
+    return dispatcher.running_in_this_thread();
+  }
+};
+
+template <typename Dispatcher, typename Handler,
+    typename IsContinuation = is_continuation_delegated>
+class wrapped_handler
+{
+public:
+  typedef void result_type;
+
+  wrapped_handler(Dispatcher dispatcher, Handler& handler)
+    : dispatcher_(dispatcher),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  wrapped_handler(const wrapped_handler& other)
+    : dispatcher_(other.dispatcher_),
+      handler_(other.handler_)
+  {
+  }
+
+  wrapped_handler(wrapped_handler&& other)
+    : dispatcher_(other.dispatcher_),
+      handler_(ASIO_MOVE_CAST(Handler)(other.handler_))
+  {
+  }
+
+  void operator()()
+  {
+    dispatcher_.dispatch(ASIO_MOVE_CAST(Handler)(handler_));
+  }
+
+  void operator()() const
+  {
+    dispatcher_.dispatch(handler_);
+  }
+
+  template <typename Arg1>
+  void operator()(const Arg1& arg1)
+  {
+    dispatcher_.dispatch(detail::bind_handler(handler_, arg1));
+  }
+
+  template <typename Arg1>
+  void operator()(const Arg1& arg1) const
+  {
+    dispatcher_.dispatch(detail::bind_handler(handler_, arg1));
+  }
+
+  template <typename Arg1, typename Arg2>
+  void operator()(const Arg1& arg1, const Arg2& arg2)
+  {
+    dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2));
+  }
+
+  template <typename Arg1, typename Arg2>
+  void operator()(const Arg1& arg1, const Arg2& arg2) const
+  {
+    dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2));
+  }
+
+  template <typename Arg1, typename Arg2, typename Arg3>
+  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3)
+  {
+    dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2, arg3));
+  }
+
+  template <typename Arg1, typename Arg2, typename Arg3>
+  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3) const
+  {
+    dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2, arg3));
+  }
+
+  template <typename Arg1, typename Arg2, typename Arg3, typename Arg4>
+  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
+      const Arg4& arg4)
+  {
+    dispatcher_.dispatch(
+        detail::bind_handler(handler_, arg1, arg2, arg3, arg4));
+  }
+
+  template <typename Arg1, typename Arg2, typename Arg3, typename Arg4>
+  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
+      const Arg4& arg4) const
+  {
+    dispatcher_.dispatch(
+        detail::bind_handler(handler_, arg1, arg2, arg3, arg4));
+  }
+
+  template <typename Arg1, typename Arg2, typename Arg3, typename Arg4,
+      typename Arg5>
+  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
+      const Arg4& arg4, const Arg5& arg5)
+  {
+    dispatcher_.dispatch(
+        detail::bind_handler(handler_, arg1, arg2, arg3, arg4, arg5));
+  }
+
+  template <typename Arg1, typename Arg2, typename Arg3, typename Arg4,
+      typename Arg5>
+  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
+      const Arg4& arg4, const Arg5& arg5) const
+  {
+    dispatcher_.dispatch(
+        detail::bind_handler(handler_, arg1, arg2, arg3, arg4, arg5));
+  }
+
+//private:
+  Dispatcher dispatcher_;
+  Handler handler_;
+};
+
+template <typename Handler, typename Context>
+class rewrapped_handler
+{
+public:
+  explicit rewrapped_handler(Handler& handler, const Context& context)
+    : context_(context),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+  }
+
+  explicit rewrapped_handler(const Handler& handler, const Context& context)
+    : context_(context),
+      handler_(handler)
+  {
+  }
+
+  rewrapped_handler(const rewrapped_handler& other)
+    : context_(other.context_),
+      handler_(other.handler_)
+  {
+  }
+
+  rewrapped_handler(rewrapped_handler&& other)
+    : context_(ASIO_MOVE_CAST(Context)(other.context_)),
+      handler_(ASIO_MOVE_CAST(Handler)(other.handler_))
+  {
+  }
+
+  void operator()()
+  {
+    handler_();
+  }
+
+  void operator()() const
+  {
+    handler_();
+  }
+
+//private:
+  Context context_;
+  Handler handler_;
+};
+
+template <typename Dispatcher, typename Handler, typename IsContinuation>
+inline void* asio_handler_allocate(std::size_t size,
+    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
+{
+  return asio_handler_alloc_helpers::allocate(
+      size, this_handler->handler_);
+}
+
+template <typename Dispatcher, typename Handler, typename IsContinuation>
+inline void asio_handler_deallocate(void* pointer, std::size_t size,
+    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
+{
+  asio_handler_alloc_helpers::deallocate(
+      pointer, size, this_handler->handler_);
+}
+
+template <typename Dispatcher, typename Handler, typename IsContinuation>
+inline bool asio_handler_is_continuation(
+    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
+{
+  return IsContinuation()(this_handler->dispatcher_, this_handler->handler_);
+}
+
+template <typename Function, typename Dispatcher,
+    typename Handler, typename IsContinuation>
+inline void asio_handler_invoke(Function& function,
+    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
+{
+  this_handler->dispatcher_.dispatch(
+      rewrapped_handler<Function, Handler>(
+        function, this_handler->handler_));
+}
+
+template <typename Function, typename Dispatcher,
+    typename Handler, typename IsContinuation>
+inline void asio_handler_invoke(const Function& function,
+    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
+{
+  this_handler->dispatcher_.dispatch(
+      rewrapped_handler<Function, Handler>(
+        function, this_handler->handler_));
+}
+
+template <typename Handler, typename Context>
+inline void* asio_handler_allocate(std::size_t size,
+    rewrapped_handler<Handler, Context>* this_handler)
+{
+  return asio_handler_alloc_helpers::allocate(
+      size, this_handler->context_);
+}
+
+template <typename Handler, typename Context>
+inline void asio_handler_deallocate(void* pointer, std::size_t size,
+    rewrapped_handler<Handler, Context>* this_handler)
+{
+  asio_handler_alloc_helpers::deallocate(
+      pointer, size, this_handler->context_);
+}
+
+template <typename Dispatcher, typename Context>
+inline bool asio_handler_is_continuation(
+    rewrapped_handler<Dispatcher, Context>* this_handler)
+{
+  return asio_handler_cont_helpers::is_continuation(
+      this_handler->context_);
+}
+
+template <typename Function, typename Handler, typename Context>
+inline void asio_handler_invoke(Function& function,
+    rewrapped_handler<Handler, Context>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->context_);
+}
+
+template <typename Function, typename Handler, typename Context>
+inline void asio_handler_invoke(const Function& function,
+    rewrapped_handler<Handler, Context>* this_handler)
+{
+  asio_handler_invoke_helpers::invoke(
+      function, this_handler->context_);
+}
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_DETAIL_WRAPPED_HANDLER_HPP
diff --git a/asio-1.10.6/include/asio/error.hpp b/asio-1.10.6/include/asio/error.hpp
new file mode 100644
index 0000000..8361e46
--- /dev/null
+++ b/asio-1.10.6/include/asio/error.hpp
@@ -0,0 +1,284 @@
+//
+// error.hpp
+// ~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_ERROR_HPP
+#define ASIO_ERROR_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/error_code.hpp"
+#include "asio/system_error.hpp"
+# include <cerrno>
+# include <netdb.h>
+
+# define ASIO_NATIVE_ERROR(e) e
+# define ASIO_SOCKET_ERROR(e) e
+# define ASIO_NETDB_ERROR(e) e
+# define ASIO_GETADDRINFO_ERROR(e) e
+# define ASIO_WIN_OR_POSIX(e_win, e_posix) e_posix
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace error {
+
+enum basic_errors
+{
+  /// Permission denied.
+  access_denied = ASIO_SOCKET_ERROR(EACCES),
+
+  /// Address family not supported by protocol.
+  address_family_not_supported = ASIO_SOCKET_ERROR(EAFNOSUPPORT),
+
+  /// Address already in use.
+  address_in_use = ASIO_SOCKET_ERROR(EADDRINUSE),
+
+  /// Transport endpoint is already connected.
+  already_connected = ASIO_SOCKET_ERROR(EISCONN),
+
+  /// Operation already in progress.
+  already_started = ASIO_SOCKET_ERROR(EALREADY),
+
+  /// Broken pipe.
+  broken_pipe = ASIO_WIN_OR_POSIX(
+      ASIO_NATIVE_ERROR(ERROR_BROKEN_PIPE),
+      ASIO_NATIVE_ERROR(EPIPE)),
+
+  /// A connection has been aborted.
+  connection_aborted = ASIO_SOCKET_ERROR(ECONNABORTED),
+
+  /// Connection refused.
+  connection_refused = ASIO_SOCKET_ERROR(ECONNREFUSED),
+
+  /// Connection reset by peer.
+  connection_reset = ASIO_SOCKET_ERROR(ECONNRESET),
+
+  /// Bad file descriptor.
+  bad_descriptor = ASIO_SOCKET_ERROR(EBADF),
+
+  /// Bad address.
+  fault = ASIO_SOCKET_ERROR(EFAULT),
+
+  /// No route to host.
+  host_unreachable = ASIO_SOCKET_ERROR(EHOSTUNREACH),
+
+  /// Operation now in progress.
+  in_progress = ASIO_SOCKET_ERROR(EINPROGRESS),
+
+  /// Interrupted system call.
+  interrupted = ASIO_SOCKET_ERROR(EINTR),
+
+  /// Invalid argument.
+  invalid_argument = ASIO_SOCKET_ERROR(EINVAL),
+
+  /// Message too long.
+  message_size = ASIO_SOCKET_ERROR(EMSGSIZE),
+
+  /// The name was too long.
+  name_too_long = ASIO_SOCKET_ERROR(ENAMETOOLONG),
+
+  /// Network is down.
+  network_down = ASIO_SOCKET_ERROR(ENETDOWN),
+
+  /// Network dropped connection on reset.
+  network_reset = ASIO_SOCKET_ERROR(ENETRESET),
+
+  /// Network is unreachable.
+  network_unreachable = ASIO_SOCKET_ERROR(ENETUNREACH),
+
+  /// Too many open files.
+  no_descriptors = ASIO_SOCKET_ERROR(EMFILE),
+
+  /// No buffer space available.
+  no_buffer_space = ASIO_SOCKET_ERROR(ENOBUFS),
+
+  /// Cannot allocate memory.
+  no_memory = ASIO_WIN_OR_POSIX(
+      ASIO_NATIVE_ERROR(ERROR_OUTOFMEMORY),
+      ASIO_NATIVE_ERROR(ENOMEM)),
+
+  /// Operation not permitted.
+  no_permission = ASIO_WIN_OR_POSIX(
+      ASIO_NATIVE_ERROR(ERROR_ACCESS_DENIED),
+      ASIO_NATIVE_ERROR(EPERM)),
+
+  /// Protocol not available.
+  no_protocol_option = ASIO_SOCKET_ERROR(ENOPROTOOPT),
+
+  /// No such device.
+  no_such_device = ASIO_WIN_OR_POSIX(
+      ASIO_NATIVE_ERROR(ERROR_BAD_UNIT),
+      ASIO_NATIVE_ERROR(ENODEV)),
+
+  /// Transport endpoint is not connected.
+  not_connected = ASIO_SOCKET_ERROR(ENOTCONN),
+
+  /// Socket operation on non-socket.
+  not_socket = ASIO_SOCKET_ERROR(ENOTSOCK),
+
+  /// Operation cancelled.
+  operation_aborted = ASIO_WIN_OR_POSIX(
+      ASIO_NATIVE_ERROR(ERROR_OPERATION_ABORTED),
+      ASIO_NATIVE_ERROR(ECANCELED)),
+
+  /// Operation not supported.
+  operation_not_supported = ASIO_SOCKET_ERROR(EOPNOTSUPP),
+
+  /// Cannot send after transport endpoint shutdown.
+  shut_down = ASIO_SOCKET_ERROR(ESHUTDOWN),
+
+  /// Connection timed out.
+  timed_out = ASIO_SOCKET_ERROR(ETIMEDOUT),
+
+  /// Resource temporarily unavailable.
+  try_again = ASIO_WIN_OR_POSIX(
+      ASIO_NATIVE_ERROR(ERROR_RETRY),
+      ASIO_NATIVE_ERROR(EAGAIN)),
+
+  /// The socket is marked non-blocking and the requested operation would block.
+  would_block = ASIO_SOCKET_ERROR(EWOULDBLOCK)
+};
+
+enum netdb_errors
+{
+  /// Host not found (authoritative).
+  host_not_found = ASIO_NETDB_ERROR(HOST_NOT_FOUND),
+
+  /// Host not found (non-authoritative).
+  host_not_found_try_again = ASIO_NETDB_ERROR(TRY_AGAIN),
+
+  /// The query is valid but does not have associated address data.
+  no_data = ASIO_NETDB_ERROR(NO_DATA),
+
+  /// A non-recoverable error occurred.
+  no_recovery = ASIO_NETDB_ERROR(NO_RECOVERY)
+};
+
+enum addrinfo_errors
+{
+  /// The service is not supported for the given socket type.
+  service_not_found = ASIO_WIN_OR_POSIX(
+      ASIO_NATIVE_ERROR(WSATYPE_NOT_FOUND),
+      ASIO_GETADDRINFO_ERROR(EAI_SERVICE)),
+
+  /// The socket type is not supported.
+  socket_type_not_supported = ASIO_WIN_OR_POSIX(
+      ASIO_NATIVE_ERROR(WSAESOCKTNOSUPPORT),
+      ASIO_GETADDRINFO_ERROR(EAI_SOCKTYPE))
+};
+
+enum misc_errors
+{
+  /// Already open.
+  already_open = 1,
+
+  /// End of file or stream.
+  eof,
+
+  /// Element not found.
+  not_found,
+
+  /// The descriptor cannot fit into the select system call's fd_set.
+  fd_set_failure
+};
+
+inline const asio::error_category& get_system_category()
+{
+  return asio::system_category();
+}
+
+
+extern ASIO_DECL
+const asio::error_category& get_netdb_category();
+
+extern ASIO_DECL
+const asio::error_category& get_addrinfo_category();
+
+
+extern ASIO_DECL
+const asio::error_category& get_misc_category();
+
+static const asio::error_category& system_category
+  = asio::error::get_system_category();
+static const asio::error_category& netdb_category
+  = asio::error::get_netdb_category();
+static const asio::error_category& addrinfo_category
+  = asio::error::get_addrinfo_category();
+static const asio::error_category& misc_category
+  = asio::error::get_misc_category();
+
+} // namespace error
+} // namespace asio
+
+namespace std {
+
+template<> struct is_error_code_enum<asio::error::basic_errors>
+{
+  static const bool value = true;
+};
+
+template<> struct is_error_code_enum<asio::error::netdb_errors>
+{
+  static const bool value = true;
+};
+
+template<> struct is_error_code_enum<asio::error::addrinfo_errors>
+{
+  static const bool value = true;
+};
+
+template<> struct is_error_code_enum<asio::error::misc_errors>
+{
+  static const bool value = true;
+};
+
+} // namespace std
+
+namespace asio {
+namespace error {
+
+inline asio::error_code make_error_code(basic_errors e)
+{
+  return asio::error_code(
+      static_cast<int>(e), get_system_category());
+}
+
+inline asio::error_code make_error_code(netdb_errors e)
+{
+  return asio::error_code(
+      static_cast<int>(e), get_netdb_category());
+}
+
+inline asio::error_code make_error_code(addrinfo_errors e)
+{
+  return asio::error_code(
+      static_cast<int>(e), get_addrinfo_category());
+}
+
+inline asio::error_code make_error_code(misc_errors e)
+{
+  return asio::error_code(
+      static_cast<int>(e), get_misc_category());
+}
+
+} // namespace error
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#undef ASIO_NATIVE_ERROR
+#undef ASIO_SOCKET_ERROR
+#undef ASIO_NETDB_ERROR
+#undef ASIO_GETADDRINFO_ERROR
+#undef ASIO_WIN_OR_POSIX
+
+# include "asio/impl/error.ipp"
+
+#endif // ASIO_ERROR_HPP
diff --git a/asio-1.10.6/include/asio/error_code.hpp b/asio-1.10.6/include/asio/error_code.hpp
new file mode 100644
index 0000000..bf3001c
--- /dev/null
+++ b/asio-1.10.6/include/asio/error_code.hpp
@@ -0,0 +1,40 @@
+//
+// error_code.hpp
+// ~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_ERROR_CODE_HPP
+#define ASIO_ERROR_CODE_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <system_error>
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+
+typedef std::error_category error_category;
+
+
+/// Returns the error category used for the system errors produced by asio.
+extern ASIO_DECL const error_category& system_category();
+
+
+typedef std::error_code error_code;
+
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/impl/error_code.ipp"
+
+#endif // ASIO_ERROR_CODE_HPP
diff --git a/asio-1.10.6/include/asio/handler_alloc_hook.hpp b/asio-1.10.6/include/asio/handler_alloc_hook.hpp
new file mode 100644
index 0000000..c2d0146
--- /dev/null
+++ b/asio-1.10.6/include/asio/handler_alloc_hook.hpp
@@ -0,0 +1,76 @@
+//
+// handler_alloc_hook.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_HANDLER_ALLOC_HOOK_HPP
+#define ASIO_HANDLER_ALLOC_HOOK_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Default allocation function for handlers.
+/**
+ * Asynchronous operations may need to allocate temporary objects. Since
+ * asynchronous operations have a handler function object, these temporary
+ * objects can be said to be associated with the handler.
+ *
+ * Implement asio_handler_allocate and asio_handler_deallocate for your own
+ * handlers to provide custom allocation for these temporary objects.
+ *
+ * The default implementation of these allocation hooks uses <tt>::operator
+ * new</tt> and <tt>::operator delete</tt>.
+ *
+ * @note All temporary objects associated with a handler will be deallocated
+ * before the upcall to the handler is performed. This allows the same memory to
+ * be reused for a subsequent asynchronous operation initiated by the handler.
+ *
+ * @par Example
+ * @code
+ * class my_handler;
+ *
+ * void* asio_handler_allocate(std::size_t size, my_handler* context)
+ * {
+ *   return ::operator new(size);
+ * }
+ *
+ * void asio_handler_deallocate(void* pointer, std::size_t size,
+ *     my_handler* context)
+ * {
+ *   ::operator delete(pointer);
+ * }
+ * @endcode
+ */
+ASIO_DECL void* asio_handler_allocate(
+    std::size_t size, ...);
+
+/// Default deallocation function for handlers.
+/**
+ * Implement asio_handler_allocate and asio_handler_deallocate for your own
+ * handlers to provide custom allocation for the associated temporary objects.
+ *
+ * The default implementation of these allocation hooks uses <tt>::operator
+ * new</tt> and <tt>::operator delete</tt>.
+ *
+ * @sa asio_handler_allocate.
+ */
+ASIO_DECL void asio_handler_deallocate(
+    void* pointer, std::size_t size, ...);
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/impl/handler_alloc_hook.ipp"
+
+#endif // ASIO_HANDLER_ALLOC_HOOK_HPP
diff --git a/asio-1.10.6/include/asio/handler_continuation_hook.hpp b/asio-1.10.6/include/asio/handler_continuation_hook.hpp
new file mode 100644
index 0000000..b4f721c
--- /dev/null
+++ b/asio-1.10.6/include/asio/handler_continuation_hook.hpp
@@ -0,0 +1,51 @@
+//
+// handler_continuation_hook.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_HANDLER_CONTINUATION_HOOK_HPP
+#define ASIO_HANDLER_CONTINUATION_HOOK_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Default continuation function for handlers.
+/**
+ * Asynchronous operations may represent a continuation of the asynchronous
+ * control flow associated with the current handler. The implementation can use
+ * this knowledge to optimise scheduling of the handler.
+ *
+ * Implement asio_handler_is_continuation for your own handlers to indicate
+ * when a handler represents a continuation.
+ *
+ * The default implementation of the continuation hook returns <tt>false</tt>.
+ *
+ * @par Example
+ * @code
+ * class my_handler;
+ *
+ * bool asio_handler_is_continuation(my_handler* context)
+ * {
+ *   return true;
+ * }
+ * @endcode
+ */
+inline bool asio_handler_is_continuation(...)
+{
+  return false;
+}
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_HANDLER_CONTINUATION_HOOK_HPP
diff --git a/asio-1.10.6/include/asio/handler_invoke_hook.hpp b/asio-1.10.6/include/asio/handler_invoke_hook.hpp
new file mode 100644
index 0000000..8f3d219
--- /dev/null
+++ b/asio-1.10.6/include/asio/handler_invoke_hook.hpp
@@ -0,0 +1,82 @@
+//
+// handler_invoke_hook.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_HANDLER_INVOKE_HOOK_HPP
+#define ASIO_HANDLER_INVOKE_HOOK_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/** @defgroup asio_handler_invoke asio::asio_handler_invoke
+ *
+ * @brief Default invoke function for handlers.
+ *
+ * Completion handlers for asynchronous operations are invoked by the
+ * io_service associated with the corresponding object (e.g. a socket or
+ * deadline_timer). Certain guarantees are made on when the handler may be
+ * invoked, in particular that a handler can only be invoked from a thread that
+ * is currently calling @c run() on the corresponding io_service object.
+ * Handlers may subsequently be invoked through other objects (such as
+ * io_service::strand objects) that provide additional guarantees.
+ *
+ * When asynchronous operations are composed from other asynchronous
+ * operations, all intermediate handlers should be invoked using the same
+ * method as the final handler. This is required to ensure that user-defined
+ * objects are not accessed in a way that may violate the guarantees. This
+ * hooking function ensures that the invoked method used for the final handler
+ * is accessible at each intermediate step.
+ *
+ * Implement asio_handler_invoke for your own handlers to specify a custom
+ * invocation strategy.
+ *
+ * This default implementation invokes the function object like so:
+ * @code function(); @endcode
+ * If necessary, the default implementation makes a copy of the function object
+ * so that the non-const operator() can be used.
+ *
+ * @par Example
+ * @code
+ * class my_handler;
+ *
+ * template <typename Function>
+ * void asio_handler_invoke(Function function, my_handler* context)
+ * {
+ *   context->strand_.dispatch(function);
+ * }
+ * @endcode
+ */
+/*@{*/
+
+/// Default handler invocation hook used for non-const function objects.
+template <typename Function>
+inline void asio_handler_invoke(Function& function, ...)
+{
+  function();
+}
+
+/// Default handler invocation hook used for const function objects.
+template <typename Function>
+inline void asio_handler_invoke(const Function& function, ...)
+{
+  Function tmp(function);
+  tmp();
+}
+
+/*@}*/
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_HANDLER_INVOKE_HOOK_HPP
diff --git a/asio-1.10.6/include/asio/handler_type.hpp b/asio-1.10.6/include/asio/handler_type.hpp
new file mode 100644
index 0000000..9c9f1be
--- /dev/null
+++ b/asio-1.10.6/include/asio/handler_type.hpp
@@ -0,0 +1,104 @@
+//
+// handler_type.hpp
+// ~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_HANDLER_TYPE_HPP
+#define ASIO_HANDLER_TYPE_HPP
+
+
+#include "asio/detail/config.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Default handler type traits provided for all handlers.
+/**
+ * The handler_type traits class is used for determining the concrete handler
+ * type to be used for an asynchronous operation. It allows the handler type to
+ * be determined at the point where the specific completion handler signature
+ * is known.
+ *
+ * This template may be specialised for user-defined handler types.
+ */
+template <typename Handler, typename Signature>
+struct handler_type
+{
+  /// The handler type for the specific signature.
+  typedef Handler type;
+};
+
+
+template <typename Handler, typename Signature>
+struct handler_type<const Handler, Signature>
+  : handler_type<Handler, Signature> {};
+
+template <typename Handler, typename Signature>
+struct handler_type<volatile Handler, Signature>
+  : handler_type<Handler, Signature> {};
+
+template <typename Handler, typename Signature>
+struct handler_type<const volatile Handler, Signature>
+  : handler_type<Handler, Signature> {};
+
+template <typename Handler, typename Signature>
+struct handler_type<const Handler&, Signature>
+  : handler_type<Handler, Signature> {};
+
+template <typename Handler, typename Signature>
+struct handler_type<volatile Handler&, Signature>
+  : handler_type<Handler, Signature> {};
+
+template <typename Handler, typename Signature>
+struct handler_type<const volatile Handler&, Signature>
+  : handler_type<Handler, Signature> {};
+
+template <typename Handler, typename Signature>
+struct handler_type<Handler&, Signature>
+  : handler_type<Handler, Signature> {};
+
+template <typename Handler, typename Signature>
+struct handler_type<Handler&&, Signature>
+  : handler_type<Handler, Signature> {};
+
+template <typename ReturnType, typename Signature>
+struct handler_type<ReturnType(), Signature>
+  : handler_type<ReturnType(*)(), Signature> {};
+
+template <typename ReturnType, typename Arg1, typename Signature>
+struct handler_type<ReturnType(Arg1), Signature>
+  : handler_type<ReturnType(*)(Arg1), Signature> {};
+
+template <typename ReturnType, typename Arg1, typename Arg2, typename Signature>
+struct handler_type<ReturnType(Arg1, Arg2), Signature>
+  : handler_type<ReturnType(*)(Arg1, Arg2), Signature> {};
+
+template <typename ReturnType, typename Arg1, typename Arg2, typename Arg3,
+    typename Signature>
+struct handler_type<ReturnType(Arg1, Arg2, Arg3), Signature>
+  : handler_type<ReturnType(*)(Arg1, Arg2, Arg3), Signature> {};
+
+template <typename ReturnType, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4, typename Signature>
+struct handler_type<ReturnType(Arg1, Arg2, Arg3, Arg4), Signature>
+  : handler_type<ReturnType(*)(Arg1, Arg2, Arg3, Arg4), Signature> {};
+
+template <typename ReturnType, typename Arg1, typename Arg2, typename Arg3,
+    typename Arg4, typename Arg5, typename Signature>
+struct handler_type<ReturnType(Arg1, Arg2, Arg3, Arg4, Arg5), Signature>
+  : handler_type<ReturnType(*)(Arg1, Arg2, Arg3, Arg4, Arg5), Signature> {};
+
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#define ASIO_HANDLER_TYPE(h, sig)    typename handler_type<h, sig>::type
+
+#endif // ASIO_HANDLER_TYPE_HPP
diff --git a/asio-1.10.6/include/asio/impl/connect.hpp b/asio-1.10.6/include/asio/impl/connect.hpp
new file mode 100644
index 0000000..affba0a
--- /dev/null
+++ b/asio-1.10.6/include/asio/impl/connect.hpp
@@ -0,0 +1,423 @@
+//
+// impl/connect.hpp
+// ~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IMPL_CONNECT_HPP
+#define ASIO_IMPL_CONNECT_HPP
+
+
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/consuming_buffers.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_cont_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+namespace detail
+{
+  struct default_connect_condition
+  {
+    template <typename Iterator>
+    Iterator operator()(const asio::error_code&, Iterator next)
+    {
+      return next;
+    }
+  };
+}
+
+template <typename Protocol, typename SocketService, typename Iterator>
+Iterator connect(basic_socket<Protocol, SocketService>& s, Iterator begin)
+{
+  asio::error_code ec;
+  Iterator result = connect(s, begin, ec);
+  asio::detail::throw_error(ec, "connect");
+  return result;
+}
+
+template <typename Protocol, typename SocketService, typename Iterator>
+inline Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, asio::error_code& ec)
+{
+  return connect(s, begin, Iterator(), detail::default_connect_condition(), ec);
+}
+
+template <typename Protocol, typename SocketService, typename Iterator>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end)
+{
+  asio::error_code ec;
+  Iterator result = connect(s, begin, end, ec);
+  asio::detail::throw_error(ec, "connect");
+  return result;
+}
+
+template <typename Protocol, typename SocketService, typename Iterator>
+inline Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end, asio::error_code& ec)
+{
+  return connect(s, begin, end, detail::default_connect_condition(), ec);
+}
+
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ConnectCondition>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, ConnectCondition connect_condition)
+{
+  asio::error_code ec;
+  Iterator result = connect(s, begin, connect_condition, ec);
+  asio::detail::throw_error(ec, "connect");
+  return result;
+}
+
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ConnectCondition>
+inline Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, ConnectCondition connect_condition,
+    asio::error_code& ec)
+{
+  return connect(s, begin, Iterator(), connect_condition, ec);
+}
+
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ConnectCondition>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end, ConnectCondition connect_condition)
+{
+  asio::error_code ec;
+  Iterator result = connect(s, begin, end, connect_condition, ec);
+  asio::detail::throw_error(ec, "connect");
+  return result;
+}
+
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ConnectCondition>
+Iterator connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end, ConnectCondition connect_condition,
+    asio::error_code& ec)
+{
+  ec = asio::error_code();
+
+  for (Iterator iter = begin; iter != end; ++iter)
+  {
+    iter = connect_condition(ec, iter);
+    if (iter != end)
+    {
+      s.close(ec);
+      s.connect(*iter, ec);
+      if (!ec)
+        return iter;
+    }
+  }
+
+  if (!ec)
+    ec = asio::error::not_found;
+
+  return end;
+}
+
+namespace detail
+{
+  // Enable the empty base class optimisation for the connect condition.
+  template <typename ConnectCondition>
+  class base_from_connect_condition
+  {
+  protected:
+    explicit base_from_connect_condition(
+        const ConnectCondition& connect_condition)
+      : connect_condition_(connect_condition)
+    {
+    }
+
+    template <typename Iterator>
+    void check_condition(const asio::error_code& ec,
+        Iterator& iter, Iterator& end)
+    {
+      if (iter != end)
+        iter = connect_condition_(ec, static_cast<const Iterator&>(iter));
+    }
+
+  private:
+    ConnectCondition connect_condition_;
+  };
+
+  // The default_connect_condition implementation is essentially a no-op. This
+  // template specialisation lets us eliminate all costs associated with it.
+  template <>
+  class base_from_connect_condition<default_connect_condition>
+  {
+  protected:
+    explicit base_from_connect_condition(const default_connect_condition&)
+    {
+    }
+
+    template <typename Iterator>
+    void check_condition(const asio::error_code&, Iterator&, Iterator&)
+    {
+    }
+  };
+
+  template <typename Protocol, typename SocketService, typename Iterator,
+      typename ConnectCondition, typename ComposedConnectHandler>
+  class connect_op : base_from_connect_condition<ConnectCondition>
+  {
+  public:
+    connect_op(basic_socket<Protocol, SocketService>& sock,
+        const Iterator& begin, const Iterator& end,
+        const ConnectCondition& connect_condition,
+        ComposedConnectHandler& handler)
+      : base_from_connect_condition<ConnectCondition>(connect_condition),
+        socket_(sock),
+        iter_(begin),
+        end_(end),
+        start_(0),
+        handler_(ASIO_MOVE_CAST(ComposedConnectHandler)(handler))
+    {
+    }
+
+    connect_op(const connect_op& other)
+      : base_from_connect_condition<ConnectCondition>(other),
+        socket_(other.socket_),
+        iter_(other.iter_),
+        end_(other.end_),
+        start_(other.start_),
+        handler_(other.handler_)
+    {
+    }
+
+    connect_op(connect_op&& other)
+      : base_from_connect_condition<ConnectCondition>(other),
+        socket_(other.socket_),
+        iter_(other.iter_),
+        end_(other.end_),
+        start_(other.start_),
+        handler_(ASIO_MOVE_CAST(ComposedConnectHandler)(other.handler_))
+    {
+    }
+
+    void operator()(asio::error_code ec, int start = 0)
+    {
+      switch (start_ = start)
+      {
+        case 1:
+        for (;;)
+        {
+          this->check_condition(ec, iter_, end_);
+
+          if (iter_ != end_)
+          {
+            socket_.close(ec);
+            socket_.async_connect(*iter_,
+                ASIO_MOVE_CAST(connect_op)(*this));
+            return;
+          }
+
+          if (start)
+          {
+            ec = asio::error::not_found;
+            socket_.get_io_service().post(detail::bind_handler(*this, ec));
+            return;
+          }
+
+          default:
+
+          if (iter_ == end_)
+            break;
+
+          if (!socket_.is_open())
+          {
+            ec = asio::error::operation_aborted;
+            break;
+          }
+
+          if (!ec)
+            break;
+
+          ++iter_;
+        }
+
+        handler_(static_cast<const asio::error_code&>(ec),
+            static_cast<const Iterator&>(iter_));
+      }
+    }
+
+  //private:
+    basic_socket<Protocol, SocketService>& socket_;
+    Iterator iter_;
+    Iterator end_;
+    int start_;
+    ComposedConnectHandler handler_;
+  };
+
+  template <typename Protocol, typename SocketService, typename Iterator,
+      typename ConnectCondition, typename ComposedConnectHandler>
+  inline void* asio_handler_allocate(std::size_t size,
+      connect_op<Protocol, SocketService, Iterator,
+        ConnectCondition, ComposedConnectHandler>* this_handler)
+  {
+    return asio_handler_alloc_helpers::allocate(
+        size, this_handler->handler_);
+  }
+
+  template <typename Protocol, typename SocketService, typename Iterator,
+      typename ConnectCondition, typename ComposedConnectHandler>
+  inline void asio_handler_deallocate(void* pointer, std::size_t size,
+      connect_op<Protocol, SocketService, Iterator,
+        ConnectCondition, ComposedConnectHandler>* this_handler)
+  {
+    asio_handler_alloc_helpers::deallocate(
+        pointer, size, this_handler->handler_);
+  }
+
+  template <typename Protocol, typename SocketService, typename Iterator,
+      typename ConnectCondition, typename ComposedConnectHandler>
+  inline bool asio_handler_is_continuation(
+      connect_op<Protocol, SocketService, Iterator,
+        ConnectCondition, ComposedConnectHandler>* this_handler)
+  {
+    return asio_handler_cont_helpers::is_continuation(
+        this_handler->handler_);
+  }
+
+  template <typename Function, typename Protocol,
+      typename SocketService, typename Iterator,
+      typename ConnectCondition, typename ComposedConnectHandler>
+  inline void asio_handler_invoke(Function& function,
+      connect_op<Protocol, SocketService, Iterator,
+        ConnectCondition, ComposedConnectHandler>* this_handler)
+  {
+    asio_handler_invoke_helpers::invoke(
+        function, this_handler->handler_);
+  }
+
+  template <typename Function, typename Protocol,
+      typename SocketService, typename Iterator,
+      typename ConnectCondition, typename ComposedConnectHandler>
+  inline void asio_handler_invoke(const Function& function,
+      connect_op<Protocol, SocketService, Iterator,
+        ConnectCondition, ComposedConnectHandler>* this_handler)
+  {
+    asio_handler_invoke_helpers::invoke(
+        function, this_handler->handler_);
+  }
+} // namespace detail
+
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ComposedConnectHandler>
+inline ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
+    void (asio::error_code, Iterator))
+async_connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, ASIO_MOVE_ARG(ComposedConnectHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a ComposedConnectHandler.
+  ASIO_COMPOSED_CONNECT_HANDLER_CHECK(
+      ComposedConnectHandler, handler, Iterator) type_check;
+
+  detail::async_result_init<ComposedConnectHandler,
+    void (asio::error_code, Iterator)> init(
+      ASIO_MOVE_CAST(ComposedConnectHandler)(handler));
+
+  detail::connect_op<Protocol, SocketService, Iterator,
+    detail::default_connect_condition, ASIO_HANDLER_TYPE(
+      ComposedConnectHandler, void (asio::error_code, Iterator))>(s,
+        begin, Iterator(), detail::default_connect_condition(), init.handler)(
+          asio::error_code(), 1);
+
+  return init.result.get();
+}
+
+template <typename Protocol, typename SocketService,
+    typename Iterator, typename ComposedConnectHandler>
+inline ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
+    void (asio::error_code, Iterator))
+async_connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end,
+    ASIO_MOVE_ARG(ComposedConnectHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a ComposedConnectHandler.
+  ASIO_COMPOSED_CONNECT_HANDLER_CHECK(
+      ComposedConnectHandler, handler, Iterator) type_check;
+
+  detail::async_result_init<ComposedConnectHandler,
+    void (asio::error_code, Iterator)> init(
+      ASIO_MOVE_CAST(ComposedConnectHandler)(handler));
+
+  detail::connect_op<Protocol, SocketService, Iterator,
+    detail::default_connect_condition, ASIO_HANDLER_TYPE(
+      ComposedConnectHandler, void (asio::error_code, Iterator))>(s,
+        begin, end, detail::default_connect_condition(), init.handler)(
+          asio::error_code(), 1);
+
+  return init.result.get();
+}
+
+template <typename Protocol, typename SocketService, typename Iterator,
+    typename ConnectCondition, typename ComposedConnectHandler>
+inline ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
+    void (asio::error_code, Iterator))
+async_connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, ConnectCondition connect_condition,
+    ASIO_MOVE_ARG(ComposedConnectHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a ComposedConnectHandler.
+  ASIO_COMPOSED_CONNECT_HANDLER_CHECK(
+      ComposedConnectHandler, handler, Iterator) type_check;
+
+  detail::async_result_init<ComposedConnectHandler,
+    void (asio::error_code, Iterator)> init(
+      ASIO_MOVE_CAST(ComposedConnectHandler)(handler));
+
+  detail::connect_op<Protocol, SocketService, Iterator,
+    ConnectCondition, ASIO_HANDLER_TYPE(
+      ComposedConnectHandler, void (asio::error_code, Iterator))>(s,
+        begin, Iterator(), connect_condition, init.handler)(
+          asio::error_code(), 1);
+
+  return init.result.get();
+}
+
+template <typename Protocol, typename SocketService, typename Iterator,
+    typename ConnectCondition, typename ComposedConnectHandler>
+inline ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
+    void (asio::error_code, Iterator))
+async_connect(basic_socket<Protocol, SocketService>& s,
+    Iterator begin, Iterator end, ConnectCondition connect_condition,
+    ASIO_MOVE_ARG(ComposedConnectHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a ComposedConnectHandler.
+  ASIO_COMPOSED_CONNECT_HANDLER_CHECK(
+      ComposedConnectHandler, handler, Iterator) type_check;
+
+  detail::async_result_init<ComposedConnectHandler,
+    void (asio::error_code, Iterator)> init(
+      ASIO_MOVE_CAST(ComposedConnectHandler)(handler));
+
+  detail::connect_op<Protocol, SocketService, Iterator,
+    ConnectCondition, ASIO_HANDLER_TYPE(
+      ComposedConnectHandler, void (asio::error_code, Iterator))>(s,
+        begin, end, connect_condition, init.handler)(
+          asio::error_code(), 1);
+
+  return init.result.get();
+}
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_CONNECT_HPP
diff --git a/asio-1.10.6/include/asio/impl/error.ipp b/asio-1.10.6/include/asio/impl/error.ipp
new file mode 100644
index 0000000..fa05864
--- /dev/null
+++ b/asio-1.10.6/include/asio/impl/error.ipp
@@ -0,0 +1,123 @@
+//
+// impl/error.ipp
+// ~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IMPL_ERROR_IPP
+#define ASIO_IMPL_ERROR_IPP
+
+
+#include "asio/detail/config.hpp"
+#include <string>
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace error {
+
+
+namespace detail {
+
+class netdb_category : public asio::error_category
+{
+public:
+  const char* name() const ASIO_ERROR_CATEGORY_NOEXCEPT
+  {
+    return "asio.netdb";
+  }
+
+  std::string message(int value) const
+  {
+    if (value == error::host_not_found)
+      return "Host not found (authoritative)";
+    if (value == error::host_not_found_try_again)
+      return "Host not found (non-authoritative), try again later";
+    if (value == error::no_data)
+      return "The query is valid, but it does not have associated data";
+    if (value == error::no_recovery)
+      return "A non-recoverable error occurred during database lookup";
+    return "asio.netdb error";
+  }
+};
+
+} // namespace detail
+
+const asio::error_category& get_netdb_category()
+{
+  static detail::netdb_category instance;
+  return instance;
+}
+
+namespace detail {
+
+class addrinfo_category : public asio::error_category
+{
+public:
+  const char* name() const ASIO_ERROR_CATEGORY_NOEXCEPT
+  {
+    return "asio.addrinfo";
+  }
+
+  std::string message(int value) const
+  {
+    if (value == error::service_not_found)
+      return "Service not found";
+    if (value == error::socket_type_not_supported)
+      return "Socket type not supported";
+    return "asio.addrinfo error";
+  }
+};
+
+} // namespace detail
+
+const asio::error_category& get_addrinfo_category()
+{
+  static detail::addrinfo_category instance;
+  return instance;
+}
+
+
+namespace detail {
+
+class misc_category : public asio::error_category
+{
+public:
+  const char* name() const ASIO_ERROR_CATEGORY_NOEXCEPT
+  {
+    return "asio.misc";
+  }
+
+  std::string message(int value) const
+  {
+    if (value == error::already_open)
+      return "Already open";
+    if (value == error::eof)
+      return "End of file";
+    if (value == error::not_found)
+      return "Element not found";
+    if (value == error::fd_set_failure)
+      return "The descriptor does not fit into the select call's fd_set";
+    return "asio.misc error";
+  }
+};
+
+} // namespace detail
+
+const asio::error_category& get_misc_category()
+{
+  static detail::misc_category instance;
+  return instance;
+}
+
+} // namespace error
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_ERROR_IPP
diff --git a/asio-1.10.6/include/asio/impl/error_code.ipp b/asio-1.10.6/include/asio/impl/error_code.ipp
new file mode 100644
index 0000000..4704245
--- /dev/null
+++ b/asio-1.10.6/include/asio/impl/error_code.ipp
@@ -0,0 +1,69 @@
+//
+// impl/error_code.ipp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IMPL_ERROR_CODE_IPP
+#define ASIO_IMPL_ERROR_CODE_IPP
+
+
+#include "asio/detail/config.hpp"
+# include <cerrno>
+# include <cstring>
+# include <string>
+#include "asio/detail/local_free_on_block_exit.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/error_code.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+class system_category : public error_category
+{
+public:
+  const char* name() const ASIO_ERROR_CATEGORY_NOEXCEPT
+  {
+    return "asio.system";
+  }
+
+  std::string message(int value) const
+  {
+#if !defined(__sun)
+    if (value == ECANCELED)
+      return "Operation aborted.";
+#endif // !defined(__sun)
+#if defined(__sun) || defined(__QNX__) || defined(__SYMBIAN32__)
+    using namespace std;
+    return strerror(value);
+#elif defined(__MACH__) && defined(__APPLE__)    || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)    || defined(_AIX) || defined(__hpux) || defined(__osf__)    || defined(__ANDROID__)
+    char buf[256] = "";
+    using namespace std;
+    strerror_r(value, buf, sizeof(buf));
+    return buf;
+#else
+    char buf[256] = "";
+    return strerror_r(value, buf, sizeof(buf));
+#endif
+  }
+};
+
+} // namespace detail
+
+const error_category& system_category()
+{
+  static detail::system_category instance;
+  return instance;
+}
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_ERROR_CODE_IPP
diff --git a/asio-1.10.6/include/asio/impl/handler_alloc_hook.ipp b/asio-1.10.6/include/asio/impl/handler_alloc_hook.ipp
new file mode 100644
index 0000000..c7efa93
--- /dev/null
+++ b/asio-1.10.6/include/asio/impl/handler_alloc_hook.ipp
@@ -0,0 +1,57 @@
+//
+// impl/handler_alloc_hook.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IMPL_HANDLER_ALLOC_HOOK_IPP
+#define ASIO_IMPL_HANDLER_ALLOC_HOOK_IPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/call_stack.hpp"
+#include "asio/handler_alloc_hook.hpp"
+
+#if !defined(ASIO_DISABLE_SMALL_BLOCK_RECYCLING)
+#  include "asio/detail/task_io_service_thread_info.hpp"
+#endif // !defined(ASIO_DISABLE_SMALL_BLOCK_RECYCLING)
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+
+void* asio_handler_allocate(std::size_t size, ...)
+{
+#if !defined(ASIO_DISABLE_SMALL_BLOCK_RECYCLING)
+  typedef detail::task_io_service io_service_impl;
+  typedef detail::task_io_service_thread_info thread_info;
+  typedef detail::call_stack<io_service_impl, thread_info> call_stack;
+  return thread_info::allocate(call_stack::top(), size);
+#else // !defined(ASIO_DISABLE_SMALL_BLOCK_RECYCLING)
+  return ::operator new(size);
+#endif // !defined(ASIO_DISABLE_SMALL_BLOCK_RECYCLING)
+}
+
+void asio_handler_deallocate(void* pointer, std::size_t size, ...)
+{
+#if !defined(ASIO_DISABLE_SMALL_BLOCK_RECYCLING)
+  typedef detail::task_io_service io_service_impl;
+  typedef detail::task_io_service_thread_info thread_info;
+  typedef detail::call_stack<io_service_impl, thread_info> call_stack;
+  thread_info::deallocate(call_stack::top(), pointer, size);
+#else // !defined(ASIO_DISABLE_SMALL_BLOCK_RECYCLING)
+  (void)size;
+  ::operator delete(pointer);
+#endif // !defined(ASIO_DISABLE_SMALL_BLOCK_RECYCLING)
+}
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_HANDLER_ALLOC_HOOK_IPP
diff --git a/asio-1.10.6/include/asio/impl/io_service.hpp b/asio-1.10.6/include/asio/impl/io_service.hpp
new file mode 100644
index 0000000..de7265e
--- /dev/null
+++ b/asio-1.10.6/include/asio/impl/io_service.hpp
@@ -0,0 +1,141 @@
+//
+// impl/io_service.hpp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IMPL_IO_SERVICE_HPP
+#define ASIO_IMPL_IO_SERVICE_HPP
+
+
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/service_registry.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+template <typename Service>
+inline Service& use_service(io_service& ios)
+{
+  // Check that Service meets the necessary type requirements.
+  (void)static_cast<io_service::service*>(static_cast<Service*>(0));
+  (void)static_cast<const io_service::id*>(&Service::id);
+
+  return ios.service_registry_->template use_service<Service>();
+}
+
+template <>
+inline detail::io_service_impl& use_service<detail::io_service_impl>(
+    io_service& ios)
+{
+  return ios.impl_;
+}
+
+template <typename Service>
+inline void add_service(io_service& ios, Service* svc)
+{
+  // Check that Service meets the necessary type requirements.
+  (void)static_cast<io_service::service*>(static_cast<Service*>(0));
+  (void)static_cast<const io_service::id*>(&Service::id);
+
+  ios.service_registry_->template add_service<Service>(svc);
+}
+
+template <typename Service>
+inline bool has_service(io_service& ios)
+{
+  // Check that Service meets the necessary type requirements.
+  (void)static_cast<io_service::service*>(static_cast<Service*>(0));
+  (void)static_cast<const io_service::id*>(&Service::id);
+
+  return ios.service_registry_->template has_service<Service>();
+}
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/detail/task_io_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+template <typename CompletionHandler>
+inline ASIO_INITFN_RESULT_TYPE(CompletionHandler, void ())
+io_service::dispatch(ASIO_MOVE_ARG(CompletionHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a CompletionHandler.
+  ASIO_COMPLETION_HANDLER_CHECK(CompletionHandler, handler) type_check;
+
+  detail::async_result_init<
+    CompletionHandler, void ()> init(
+      ASIO_MOVE_CAST(CompletionHandler)(handler));
+
+  impl_.dispatch(init.handler);
+
+  return init.result.get();
+}
+
+template <typename CompletionHandler>
+inline ASIO_INITFN_RESULT_TYPE(CompletionHandler, void ())
+io_service::post(ASIO_MOVE_ARG(CompletionHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a CompletionHandler.
+  ASIO_COMPLETION_HANDLER_CHECK(CompletionHandler, handler) type_check;
+
+  detail::async_result_init<
+    CompletionHandler, void ()> init(
+      ASIO_MOVE_CAST(CompletionHandler)(handler));
+
+  impl_.post(init.handler);
+
+  return init.result.get();
+}
+
+template <typename Handler>
+inline detail::wrapped_handler<io_service&, Handler>
+io_service::wrap(Handler handler)
+{
+  return detail::wrapped_handler<io_service&, Handler>(*this, handler);
+}
+
+inline io_service::work::work(asio::io_service& io_service)
+  : io_service_impl_(io_service.impl_)
+{
+  io_service_impl_.work_started();
+}
+
+inline io_service::work::work(const work& other)
+  : io_service_impl_(other.io_service_impl_)
+{
+  io_service_impl_.work_started();
+}
+
+inline io_service::work::~work()
+{
+  io_service_impl_.work_finished();
+}
+
+inline asio::io_service& io_service::work::get_io_service()
+{
+  return io_service_impl_.get_io_service();
+}
+
+inline asio::io_service& io_service::service::get_io_service()
+{
+  return owner_;
+}
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_IO_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/impl/io_service.ipp b/asio-1.10.6/include/asio/impl/io_service.ipp
new file mode 100644
index 0000000..839e21b
--- /dev/null
+++ b/asio-1.10.6/include/asio/impl/io_service.ipp
@@ -0,0 +1,148 @@
+//
+// impl/io_service.ipp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IMPL_IO_SERVICE_IPP
+#define ASIO_IMPL_IO_SERVICE_IPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/io_service.hpp"
+#include "asio/detail/limits.hpp"
+#include "asio/detail/scoped_ptr.hpp"
+#include "asio/detail/service_registry.hpp"
+#include "asio/detail/throw_error.hpp"
+
+# include "asio/detail/task_io_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+io_service::io_service()
+  : service_registry_(new asio::detail::service_registry(
+        *this, static_cast<impl_type*>(0),
+        (std::numeric_limits<std::size_t>::max)())),
+    impl_(service_registry_->first_service<impl_type>())
+{
+}
+
+io_service::io_service(std::size_t concurrency_hint)
+  : service_registry_(new asio::detail::service_registry(
+        *this, static_cast<impl_type*>(0), concurrency_hint)),
+    impl_(service_registry_->first_service<impl_type>())
+{
+}
+
+io_service::~io_service()
+{
+  delete service_registry_;
+}
+
+std::size_t io_service::run()
+{
+  asio::error_code ec;
+  std::size_t s = impl_.run(ec);
+  asio::detail::throw_error(ec);
+  return s;
+}
+
+std::size_t io_service::run(asio::error_code& ec)
+{
+  return impl_.run(ec);
+}
+
+std::size_t io_service::run_one()
+{
+  asio::error_code ec;
+  std::size_t s = impl_.run_one(ec);
+  asio::detail::throw_error(ec);
+  return s;
+}
+
+std::size_t io_service::run_one(asio::error_code& ec)
+{
+  return impl_.run_one(ec);
+}
+
+std::size_t io_service::poll()
+{
+  asio::error_code ec;
+  std::size_t s = impl_.poll(ec);
+  asio::detail::throw_error(ec);
+  return s;
+}
+
+std::size_t io_service::poll(asio::error_code& ec)
+{
+  return impl_.poll(ec);
+}
+
+std::size_t io_service::poll_one()
+{
+  asio::error_code ec;
+  std::size_t s = impl_.poll_one(ec);
+  asio::detail::throw_error(ec);
+  return s;
+}
+
+std::size_t io_service::poll_one(asio::error_code& ec)
+{
+  return impl_.poll_one(ec);
+}
+
+void io_service::stop()
+{
+  impl_.stop();
+}
+
+bool io_service::stopped() const
+{
+  return impl_.stopped();
+}
+
+void io_service::reset()
+{
+  impl_.reset();
+}
+
+void io_service::notify_fork(asio::io_service::fork_event event)
+{
+  service_registry_->notify_fork(event);
+}
+
+io_service::service::service(asio::io_service& owner)
+  : owner_(owner),
+    next_(0)
+{
+}
+
+io_service::service::~service()
+{
+}
+
+void io_service::service::fork_service(asio::io_service::fork_event)
+{
+}
+
+service_already_exists::service_already_exists()
+  : std::logic_error("Service already exists.")
+{
+}
+
+invalid_service_owner::invalid_service_owner()
+  : std::logic_error("Invalid service owner.")
+{
+}
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_IO_SERVICE_IPP
diff --git a/asio-1.10.6/include/asio/impl/read.hpp b/asio-1.10.6/include/asio/impl/read.hpp
new file mode 100644
index 0000000..da36082
--- /dev/null
+++ b/asio-1.10.6/include/asio/impl/read.hpp
@@ -0,0 +1,502 @@
+//
+// impl/read.hpp
+// ~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IMPL_READ_HPP
+#define ASIO_IMPL_READ_HPP
+
+
+#include <algorithm>
+#include "asio/buffer.hpp"
+#include "asio/completion_condition.hpp"
+#include "asio/detail/array_fwd.hpp"
+#include "asio/detail/base_from_completion_cond.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/consuming_buffers.hpp"
+#include "asio/detail/dependent_type.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_cont_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+template <typename SyncReadStream, typename MutableBufferSequence,
+    typename CompletionCondition>
+std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers,
+    CompletionCondition completion_condition, asio::error_code& ec)
+{
+  ec = asio::error_code();
+  asio::detail::consuming_buffers<
+    mutable_buffer, MutableBufferSequence> tmp(buffers);
+  std::size_t total_transferred = 0;
+  tmp.prepare(detail::adapt_completion_condition_result(
+        completion_condition(ec, total_transferred)));
+  while (tmp.begin() != tmp.end())
+  {
+    std::size_t bytes_transferred = s.read_some(tmp, ec);
+    tmp.consume(bytes_transferred);
+    total_transferred += bytes_transferred;
+    tmp.prepare(detail::adapt_completion_condition_result(
+          completion_condition(ec, total_transferred)));
+  }
+  return total_transferred;
+}
+
+template <typename SyncReadStream, typename MutableBufferSequence>
+inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers)
+{
+  asio::error_code ec;
+  std::size_t bytes_transferred = read(s, buffers, transfer_all(), ec);
+  asio::detail::throw_error(ec, "read");
+  return bytes_transferred;
+}
+
+template <typename SyncReadStream, typename MutableBufferSequence>
+inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers,
+    asio::error_code& ec)
+{
+  return read(s, buffers, transfer_all(), ec);
+}
+
+template <typename SyncReadStream, typename MutableBufferSequence,
+    typename CompletionCondition>
+inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers,
+    CompletionCondition completion_condition)
+{
+  asio::error_code ec;
+  std::size_t bytes_transferred = read(s, buffers, completion_condition, ec);
+  asio::detail::throw_error(ec, "read");
+  return bytes_transferred;
+}
+
+
+namespace detail
+{
+  template <typename AsyncReadStream, typename MutableBufferSequence,
+      typename CompletionCondition, typename ReadHandler>
+  class read_op
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    read_op(AsyncReadStream& stream, const MutableBufferSequence& buffers,
+        CompletionCondition completion_condition, ReadHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffers_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(ReadHandler)(handler))
+    {
+    }
+
+    read_op(const read_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    read_op(read_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      switch (start_ = start)
+      {
+        case 1:
+        buffers_.prepare(this->check_for_completion(ec, total_transferred_));
+        for (;;)
+        {
+          stream_.async_read_some(buffers_,
+              ASIO_MOVE_CAST(read_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          buffers_.consume(bytes_transferred);
+          buffers_.prepare(this->check_for_completion(ec, total_transferred_));
+          if ((!ec && bytes_transferred == 0)
+              || buffers_.begin() == buffers_.end())
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncReadStream& stream_;
+    asio::detail::consuming_buffers<
+      mutable_buffer, MutableBufferSequence> buffers_;
+    int start_;
+    std::size_t total_transferred_;
+    ReadHandler handler_;
+  };
+
+  template <typename AsyncReadStream,
+      typename CompletionCondition, typename ReadHandler>
+  class read_op<AsyncReadStream, asio::mutable_buffers_1,
+      CompletionCondition, ReadHandler>
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    read_op(AsyncReadStream& stream,
+        const asio::mutable_buffers_1& buffers,
+        CompletionCondition completion_condition, ReadHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffer_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(ReadHandler)(handler))
+    {
+    }
+
+    read_op(const read_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffer_(other.buffer_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    read_op(read_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffer_(other.buffer_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      std::size_t n = 0;
+      switch (start_ = start)
+      {
+        case 1:
+        n = this->check_for_completion(ec, total_transferred_);
+        for (;;)
+        {
+          stream_.async_read_some(
+              asio::buffer(buffer_ + total_transferred_, n),
+              ASIO_MOVE_CAST(read_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          if ((!ec && bytes_transferred == 0)
+              || (n = this->check_for_completion(ec, total_transferred_)) == 0
+              || total_transferred_ == asio::buffer_size(buffer_))
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncReadStream& stream_;
+    asio::mutable_buffer buffer_;
+    int start_;
+    std::size_t total_transferred_;
+    ReadHandler handler_;
+  };
+
+  template <typename AsyncReadStream, typename Elem,
+      typename CompletionCondition, typename ReadHandler>
+  class read_op<AsyncReadStream, boost::array<Elem, 2>,
+      CompletionCondition, ReadHandler>
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    read_op(AsyncReadStream& stream, const boost::array<Elem, 2>& buffers,
+        CompletionCondition completion_condition, ReadHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffers_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(ReadHandler)(handler))
+    {
+    }
+
+    read_op(const read_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    read_op(read_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      typename asio::detail::dependent_type<Elem,
+          boost::array<asio::mutable_buffer, 2> >::type bufs = {{
+        asio::mutable_buffer(buffers_[0]),
+        asio::mutable_buffer(buffers_[1]) }};
+      std::size_t buffer_size0 = asio::buffer_size(bufs[0]);
+      std::size_t buffer_size1 = asio::buffer_size(bufs[1]);
+      std::size_t n = 0;
+      switch (start_ = start)
+      {
+        case 1:
+        n = this->check_for_completion(ec, total_transferred_);
+        for (;;)
+        {
+          bufs[0] = asio::buffer(bufs[0] + total_transferred_, n);
+          bufs[1] = asio::buffer(
+              bufs[1] + (total_transferred_ < buffer_size0
+                ? 0 : total_transferred_ - buffer_size0),
+              n - asio::buffer_size(bufs[0]));
+          stream_.async_read_some(bufs, ASIO_MOVE_CAST(read_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          if ((!ec && bytes_transferred == 0)
+              || (n = this->check_for_completion(ec, total_transferred_)) == 0
+              || total_transferred_ == buffer_size0 + buffer_size1)
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncReadStream& stream_;
+    boost::array<Elem, 2> buffers_;
+    int start_;
+    std::size_t total_transferred_;
+    ReadHandler handler_;
+  };
+
+
+  template <typename AsyncReadStream, typename Elem,
+      typename CompletionCondition, typename ReadHandler>
+  class read_op<AsyncReadStream, std::array<Elem, 2>,
+      CompletionCondition, ReadHandler>
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    read_op(AsyncReadStream& stream, const std::array<Elem, 2>& buffers,
+        CompletionCondition completion_condition, ReadHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffers_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(ReadHandler)(handler))
+    {
+    }
+
+    read_op(const read_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    read_op(read_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      typename asio::detail::dependent_type<Elem,
+          std::array<asio::mutable_buffer, 2> >::type bufs = {{
+        asio::mutable_buffer(buffers_[0]),
+        asio::mutable_buffer(buffers_[1]) }};
+      std::size_t buffer_size0 = asio::buffer_size(bufs[0]);
+      std::size_t buffer_size1 = asio::buffer_size(bufs[1]);
+      std::size_t n = 0;
+      switch (start_ = start)
+      {
+        case 1:
+        n = this->check_for_completion(ec, total_transferred_);
+        for (;;)
+        {
+          bufs[0] = asio::buffer(bufs[0] + total_transferred_, n);
+          bufs[1] = asio::buffer(
+              bufs[1] + (total_transferred_ < buffer_size0
+                ? 0 : total_transferred_ - buffer_size0),
+              n - asio::buffer_size(bufs[0]));
+          stream_.async_read_some(bufs, ASIO_MOVE_CAST(read_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          if ((!ec && bytes_transferred == 0)
+              || (n = this->check_for_completion(ec, total_transferred_)) == 0
+              || total_transferred_ == buffer_size0 + buffer_size1)
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncReadStream& stream_;
+    std::array<Elem, 2> buffers_;
+    int start_;
+    std::size_t total_transferred_;
+    ReadHandler handler_;
+  };
+
+
+  template <typename AsyncReadStream, typename MutableBufferSequence,
+      typename CompletionCondition, typename ReadHandler>
+  inline void* asio_handler_allocate(std::size_t size,
+      read_op<AsyncReadStream, MutableBufferSequence,
+        CompletionCondition, ReadHandler>* this_handler)
+  {
+    return asio_handler_alloc_helpers::allocate(
+        size, this_handler->handler_);
+  }
+
+  template <typename AsyncReadStream, typename MutableBufferSequence,
+      typename CompletionCondition, typename ReadHandler>
+  inline void asio_handler_deallocate(void* pointer, std::size_t size,
+      read_op<AsyncReadStream, MutableBufferSequence,
+        CompletionCondition, ReadHandler>* this_handler)
+  {
+    asio_handler_alloc_helpers::deallocate(
+        pointer, size, this_handler->handler_);
+  }
+
+  template <typename AsyncReadStream, typename MutableBufferSequence,
+      typename CompletionCondition, typename ReadHandler>
+  inline bool asio_handler_is_continuation(
+      read_op<AsyncReadStream, MutableBufferSequence,
+        CompletionCondition, ReadHandler>* this_handler)
+  {
+    return this_handler->start_ == 0 ? true
+      : asio_handler_cont_helpers::is_continuation(
+          this_handler->handler_);
+  }
+
+  template <typename Function, typename AsyncReadStream,
+      typename MutableBufferSequence, typename CompletionCondition,
+      typename ReadHandler>
+  inline void asio_handler_invoke(Function& function,
+      read_op<AsyncReadStream, MutableBufferSequence,
+        CompletionCondition, ReadHandler>* this_handler)
+  {
+    asio_handler_invoke_helpers::invoke(
+        function, this_handler->handler_);
+  }
+
+  template <typename Function, typename AsyncReadStream,
+      typename MutableBufferSequence, typename CompletionCondition,
+      typename ReadHandler>
+  inline void asio_handler_invoke(const Function& function,
+      read_op<AsyncReadStream, MutableBufferSequence,
+        CompletionCondition, ReadHandler>* this_handler)
+  {
+    asio_handler_invoke_helpers::invoke(
+        function, this_handler->handler_);
+  }
+} // namespace detail
+
+template <typename AsyncReadStream, typename MutableBufferSequence,
+    typename CompletionCondition, typename ReadHandler>
+inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
+    void (asio::error_code, std::size_t))
+async_read(AsyncReadStream& s, const MutableBufferSequence& buffers,
+    CompletionCondition completion_condition,
+    ASIO_MOVE_ARG(ReadHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a ReadHandler.
+  ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
+
+  detail::async_result_init<
+    ReadHandler, void (asio::error_code, std::size_t)> init(
+      ASIO_MOVE_CAST(ReadHandler)(handler));
+
+  detail::read_op<AsyncReadStream, MutableBufferSequence,
+    CompletionCondition, ASIO_HANDLER_TYPE(
+      ReadHandler, void (asio::error_code, std::size_t))>(
+        s, buffers, completion_condition, init.handler)(
+          asio::error_code(), 0, 1);
+
+  return init.result.get();
+}
+
+template <typename AsyncReadStream, typename MutableBufferSequence,
+    typename ReadHandler>
+inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
+    void (asio::error_code, std::size_t))
+async_read(AsyncReadStream& s, const MutableBufferSequence& buffers,
+    ASIO_MOVE_ARG(ReadHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a ReadHandler.
+  ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
+
+  detail::async_result_init<
+    ReadHandler, void (asio::error_code, std::size_t)> init(
+      ASIO_MOVE_CAST(ReadHandler)(handler));
+
+  detail::read_op<AsyncReadStream, MutableBufferSequence,
+    detail::transfer_all_t, ASIO_HANDLER_TYPE(
+      ReadHandler, void (asio::error_code, std::size_t))>(
+        s, buffers, transfer_all(), init.handler)(
+          asio::error_code(), 0, 1);
+
+  return init.result.get();
+}
+
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_READ_HPP
diff --git a/asio-1.10.6/include/asio/impl/write.hpp b/asio-1.10.6/include/asio/impl/write.hpp
new file mode 100644
index 0000000..282d0f3
--- /dev/null
+++ b/asio-1.10.6/include/asio/impl/write.hpp
@@ -0,0 +1,575 @@
+//
+// impl/write.hpp
+// ~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IMPL_WRITE_HPP
+#define ASIO_IMPL_WRITE_HPP
+
+
+#include "asio/buffer.hpp"
+#include "asio/completion_condition.hpp"
+#include "asio/detail/array_fwd.hpp"
+#include "asio/detail/base_from_completion_cond.hpp"
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/consuming_buffers.hpp"
+#include "asio/detail/dependent_type.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_cont_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/throw_error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+template <typename SyncWriteStream, typename ConstBufferSequence,
+    typename CompletionCondition>
+std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers,
+    CompletionCondition completion_condition, asio::error_code& ec)
+{
+  ec = asio::error_code();
+  asio::detail::consuming_buffers<
+    const_buffer, ConstBufferSequence> tmp(buffers);
+  std::size_t total_transferred = 0;
+  tmp.prepare(detail::adapt_completion_condition_result(
+        completion_condition(ec, total_transferred)));
+  while (tmp.begin() != tmp.end())
+  {
+    std::size_t bytes_transferred = s.write_some(tmp, ec);
+    tmp.consume(bytes_transferred);
+    total_transferred += bytes_transferred;
+    tmp.prepare(detail::adapt_completion_condition_result(
+          completion_condition(ec, total_transferred)));
+  }
+  return total_transferred;
+}
+
+template <typename SyncWriteStream, typename ConstBufferSequence>
+inline std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers)
+{
+  asio::error_code ec;
+  std::size_t bytes_transferred = write(s, buffers, transfer_all(), ec);
+  asio::detail::throw_error(ec, "write");
+  return bytes_transferred;
+}
+
+template <typename SyncWriteStream, typename ConstBufferSequence>
+inline std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers,
+    asio::error_code& ec)
+{
+  return write(s, buffers, transfer_all(), ec);
+}
+
+template <typename SyncWriteStream, typename ConstBufferSequence,
+    typename CompletionCondition>
+inline std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers,
+    CompletionCondition completion_condition)
+{
+  asio::error_code ec;
+  std::size_t bytes_transferred = write(s, buffers, completion_condition, ec);
+  asio::detail::throw_error(ec, "write");
+  return bytes_transferred;
+}
+
+
+namespace detail
+{
+  template <typename AsyncWriteStream, typename ConstBufferSequence,
+      typename CompletionCondition, typename WriteHandler>
+  class write_op
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    write_op(AsyncWriteStream& stream, const ConstBufferSequence& buffers,
+        CompletionCondition completion_condition, WriteHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffers_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(handler))
+    {
+    }
+
+    write_op(const write_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    write_op(write_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      switch (start_ = start)
+      {
+        case 1:
+        buffers_.prepare(this->check_for_completion(ec, total_transferred_));
+        for (;;)
+        {
+          stream_.async_write_some(buffers_,
+              ASIO_MOVE_CAST(write_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          buffers_.consume(bytes_transferred);
+          buffers_.prepare(this->check_for_completion(ec, total_transferred_));
+          if ((!ec && bytes_transferred == 0)
+              || buffers_.begin() == buffers_.end())
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncWriteStream& stream_;
+    asio::detail::consuming_buffers<
+      const_buffer, ConstBufferSequence> buffers_;
+    int start_;
+    std::size_t total_transferred_;
+    WriteHandler handler_;
+  };
+
+  template <typename AsyncWriteStream,
+      typename CompletionCondition, typename WriteHandler>
+  class write_op<AsyncWriteStream, asio::mutable_buffers_1,
+      CompletionCondition, WriteHandler>
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    write_op(AsyncWriteStream& stream,
+        const asio::mutable_buffers_1& buffers,
+        CompletionCondition completion_condition,
+        WriteHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffer_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(handler))
+    {
+    }
+
+    write_op(const write_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffer_(other.buffer_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    write_op(write_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffer_(other.buffer_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      std::size_t n = 0;
+      switch (start_ = start)
+      {
+        case 1:
+        n = this->check_for_completion(ec, total_transferred_);
+        for (;;)
+        {
+          stream_.async_write_some(
+              asio::buffer(buffer_ + total_transferred_, n),
+              ASIO_MOVE_CAST(write_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          if ((!ec && bytes_transferred == 0)
+              || (n = this->check_for_completion(ec, total_transferred_)) == 0
+              || total_transferred_ == asio::buffer_size(buffer_))
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncWriteStream& stream_;
+    asio::mutable_buffer buffer_;
+    int start_;
+    std::size_t total_transferred_;
+    WriteHandler handler_;
+  };
+
+  template <typename AsyncWriteStream,
+      typename CompletionCondition, typename WriteHandler>
+  class write_op<AsyncWriteStream, asio::const_buffers_1,
+      CompletionCondition, WriteHandler>
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    write_op(AsyncWriteStream& stream,
+        const asio::const_buffers_1& buffers,
+        CompletionCondition completion_condition,
+        WriteHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffer_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(handler))
+    {
+    }
+
+    write_op(const write_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffer_(other.buffer_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    write_op(write_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffer_(other.buffer_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      std::size_t n = 0;
+      switch (start_ = start)
+      {
+        case 1:
+        n = this->check_for_completion(ec, total_transferred_);
+        for (;;)
+        {
+          stream_.async_write_some(
+              asio::buffer(buffer_ + total_transferred_, n),
+              ASIO_MOVE_CAST(write_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          if ((!ec && bytes_transferred == 0)
+              || (n = this->check_for_completion(ec, total_transferred_)) == 0
+              || total_transferred_ == asio::buffer_size(buffer_))
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncWriteStream& stream_;
+    asio::const_buffer buffer_;
+    int start_;
+    std::size_t total_transferred_;
+    WriteHandler handler_;
+  };
+
+  template <typename AsyncWriteStream, typename Elem,
+      typename CompletionCondition, typename WriteHandler>
+  class write_op<AsyncWriteStream, boost::array<Elem, 2>,
+      CompletionCondition, WriteHandler>
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    write_op(AsyncWriteStream& stream, const boost::array<Elem, 2>& buffers,
+        CompletionCondition completion_condition, WriteHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffers_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(handler))
+    {
+    }
+
+    write_op(const write_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    write_op(write_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      typename asio::detail::dependent_type<Elem,
+          boost::array<asio::const_buffer, 2> >::type bufs = {{
+        asio::const_buffer(buffers_[0]),
+        asio::const_buffer(buffers_[1]) }};
+      std::size_t buffer_size0 = asio::buffer_size(bufs[0]);
+      std::size_t buffer_size1 = asio::buffer_size(bufs[1]);
+      std::size_t n = 0;
+      switch (start_ = start)
+      {
+        case 1:
+        n = this->check_for_completion(ec, total_transferred_);
+        for (;;)
+        {
+          bufs[0] = asio::buffer(bufs[0] + total_transferred_, n);
+          bufs[1] = asio::buffer(
+              bufs[1] + (total_transferred_ < buffer_size0
+                ? 0 : total_transferred_ - buffer_size0),
+              n - asio::buffer_size(bufs[0]));
+          stream_.async_write_some(bufs, ASIO_MOVE_CAST(write_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          if ((!ec && bytes_transferred == 0)
+              || (n = this->check_for_completion(ec, total_transferred_)) == 0
+              || total_transferred_ == buffer_size0 + buffer_size1)
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncWriteStream& stream_;
+    boost::array<Elem, 2> buffers_;
+    int start_;
+    std::size_t total_transferred_;
+    WriteHandler handler_;
+  };
+
+
+  template <typename AsyncWriteStream, typename Elem,
+      typename CompletionCondition, typename WriteHandler>
+  class write_op<AsyncWriteStream, std::array<Elem, 2>,
+      CompletionCondition, WriteHandler>
+    : detail::base_from_completion_cond<CompletionCondition>
+  {
+  public:
+    write_op(AsyncWriteStream& stream, const std::array<Elem, 2>& buffers,
+        CompletionCondition completion_condition, WriteHandler& handler)
+      : detail::base_from_completion_cond<
+          CompletionCondition>(completion_condition),
+        stream_(stream),
+        buffers_(buffers),
+        start_(0),
+        total_transferred_(0),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(handler))
+    {
+    }
+
+    write_op(const write_op& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(other.handler_)
+    {
+    }
+
+    write_op(write_op&& other)
+      : detail::base_from_completion_cond<CompletionCondition>(other),
+        stream_(other.stream_),
+        buffers_(other.buffers_),
+        start_(other.start_),
+        total_transferred_(other.total_transferred_),
+        handler_(ASIO_MOVE_CAST(WriteHandler)(other.handler_))
+    {
+    }
+
+    void operator()(const asio::error_code& ec,
+        std::size_t bytes_transferred, int start = 0)
+    {
+      typename asio::detail::dependent_type<Elem,
+          std::array<asio::const_buffer, 2> >::type bufs = {{
+        asio::const_buffer(buffers_[0]),
+        asio::const_buffer(buffers_[1]) }};
+      std::size_t buffer_size0 = asio::buffer_size(bufs[0]);
+      std::size_t buffer_size1 = asio::buffer_size(bufs[1]);
+      std::size_t n = 0;
+      switch (start_ = start)
+      {
+        case 1:
+        n = this->check_for_completion(ec, total_transferred_);
+        for (;;)
+        {
+          bufs[0] = asio::buffer(bufs[0] + total_transferred_, n);
+          bufs[1] = asio::buffer(
+              bufs[1] + (total_transferred_ < buffer_size0
+                ? 0 : total_transferred_ - buffer_size0),
+              n - asio::buffer_size(bufs[0]));
+          stream_.async_write_some(bufs, ASIO_MOVE_CAST(write_op)(*this));
+          return; default:
+          total_transferred_ += bytes_transferred;
+          if ((!ec && bytes_transferred == 0)
+              || (n = this->check_for_completion(ec, total_transferred_)) == 0
+              || total_transferred_ == buffer_size0 + buffer_size1)
+            break;
+        }
+
+        handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+      }
+    }
+
+  //private:
+    AsyncWriteStream& stream_;
+    std::array<Elem, 2> buffers_;
+    int start_;
+    std::size_t total_transferred_;
+    WriteHandler handler_;
+  };
+
+
+  template <typename AsyncWriteStream, typename ConstBufferSequence,
+      typename CompletionCondition, typename WriteHandler>
+  inline void* asio_handler_allocate(std::size_t size,
+      write_op<AsyncWriteStream, ConstBufferSequence,
+        CompletionCondition, WriteHandler>* this_handler)
+  {
+    return asio_handler_alloc_helpers::allocate(
+        size, this_handler->handler_);
+  }
+
+  template <typename AsyncWriteStream, typename ConstBufferSequence,
+      typename CompletionCondition, typename WriteHandler>
+  inline void asio_handler_deallocate(void* pointer, std::size_t size,
+      write_op<AsyncWriteStream, ConstBufferSequence,
+        CompletionCondition, WriteHandler>* this_handler)
+  {
+    asio_handler_alloc_helpers::deallocate(
+        pointer, size, this_handler->handler_);
+  }
+
+  template <typename AsyncWriteStream, typename ConstBufferSequence,
+      typename CompletionCondition, typename WriteHandler>
+  inline bool asio_handler_is_continuation(
+      write_op<AsyncWriteStream, ConstBufferSequence,
+        CompletionCondition, WriteHandler>* this_handler)
+  {
+    return this_handler->start_ == 0 ? true
+      : asio_handler_cont_helpers::is_continuation(
+          this_handler->handler_);
+  }
+
+  template <typename Function, typename AsyncWriteStream,
+      typename ConstBufferSequence, typename CompletionCondition,
+      typename WriteHandler>
+  inline void asio_handler_invoke(Function& function,
+      write_op<AsyncWriteStream, ConstBufferSequence,
+        CompletionCondition, WriteHandler>* this_handler)
+  {
+    asio_handler_invoke_helpers::invoke(
+        function, this_handler->handler_);
+  }
+
+  template <typename Function, typename AsyncWriteStream,
+      typename ConstBufferSequence, typename CompletionCondition,
+      typename WriteHandler>
+  inline void asio_handler_invoke(const Function& function,
+      write_op<AsyncWriteStream, ConstBufferSequence,
+        CompletionCondition, WriteHandler>* this_handler)
+  {
+    asio_handler_invoke_helpers::invoke(
+        function, this_handler->handler_);
+  }
+} // namespace detail
+
+template <typename AsyncWriteStream, typename ConstBufferSequence,
+  typename CompletionCondition, typename WriteHandler>
+inline ASIO_INITFN_RESULT_TYPE(WriteHandler,
+    void (asio::error_code, std::size_t))
+async_write(AsyncWriteStream& s, const ConstBufferSequence& buffers,
+    CompletionCondition completion_condition,
+    ASIO_MOVE_ARG(WriteHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a WriteHandler.
+  ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check;
+
+  detail::async_result_init<
+    WriteHandler, void (asio::error_code, std::size_t)> init(
+      ASIO_MOVE_CAST(WriteHandler)(handler));
+
+  detail::write_op<AsyncWriteStream, ConstBufferSequence,
+    CompletionCondition, ASIO_HANDLER_TYPE(
+      WriteHandler, void (asio::error_code, std::size_t))>(
+        s, buffers, completion_condition, init.handler)(
+          asio::error_code(), 0, 1);
+
+  return init.result.get();
+}
+
+template <typename AsyncWriteStream, typename ConstBufferSequence,
+    typename WriteHandler>
+inline ASIO_INITFN_RESULT_TYPE(WriteHandler,
+    void (asio::error_code, std::size_t))
+async_write(AsyncWriteStream& s, const ConstBufferSequence& buffers,
+    ASIO_MOVE_ARG(WriteHandler) handler)
+{
+  // If you get an error on the following line it means that your handler does
+  // not meet the documented type requirements for a WriteHandler.
+  ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check;
+
+  detail::async_result_init<
+    WriteHandler, void (asio::error_code, std::size_t)> init(
+      ASIO_MOVE_CAST(WriteHandler)(handler));
+
+  detail::write_op<AsyncWriteStream, ConstBufferSequence,
+    detail::transfer_all_t, ASIO_HANDLER_TYPE(
+      WriteHandler, void (asio::error_code, std::size_t))>(
+        s, buffers, transfer_all(), init.handler)(
+          asio::error_code(), 0, 1);
+
+  return init.result.get();
+}
+
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_WRITE_HPP
diff --git a/asio-1.10.6/include/asio/io_service.hpp b/asio-1.10.6/include/asio/io_service.hpp
new file mode 100644
index 0000000..8439d9a
--- /dev/null
+++ b/asio-1.10.6/include/asio/io_service.hpp
@@ -0,0 +1,747 @@
+//
+// io_service.hpp
+// ~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IO_SERVICE_HPP
+#define ASIO_IO_SERVICE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include <stdexcept>
+#include <typeinfo>
+#include "asio/async_result.hpp"
+#include "asio/detail/noncopyable.hpp"
+#include "asio/detail/wrapped_handler.hpp"
+#include "asio/error_code.hpp"
+
+#if   defined(__sun) || defined(__QNX__) || defined(__hpux) || defined(_AIX)    || defined(__osf__)
+# include "asio/detail/signal_init.hpp"
+#endif
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+class io_service;
+template <typename Service> Service& use_service(io_service& ios);
+template <typename Service> void add_service(io_service& ios, Service* svc);
+template <typename Service> bool has_service(io_service& ios);
+
+namespace detail {
+  typedef class task_io_service io_service_impl;
+  class service_registry;
+} // namespace detail
+
+/// Provides core I/O functionality.
+/**
+ * The io_service class provides the core I/O functionality for users of the
+ * asynchronous I/O objects, including:
+ *
+ * @li asio::ip::tcp::socket
+ * @li asio::ip::tcp::acceptor
+ * @li asio::ip::udp::socket
+ * @li asio::deadline_timer.
+ *
+ * The io_service class also includes facilities intended for developers of
+ * custom asynchronous services.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Safe, with the specific exceptions of the reset() and
+ * notify_fork() functions. Calling reset() while there are unfinished run(),
+ * run_one(), poll() or poll_one() calls results in undefined behaviour. The
+ * notify_fork() function should not be called while any io_service function,
+ * or any function on an I/O object that is associated with the io_service, is
+ * being called in another thread.
+ *
+ * @par Concepts:
+ * Dispatcher.
+ *
+ * @par Synchronous and asynchronous operations
+ *
+ * Synchronous operations on I/O objects implicitly run the io_service object
+ * for an individual operation. The io_service functions run(), run_one(),
+ * poll() or poll_one() must be called for the io_service to perform
+ * asynchronous operations on behalf of a C++ program. Notification that an
+ * asynchronous operation has completed is delivered by invocation of the
+ * associated handler. Handlers are invoked only by a thread that is currently
+ * calling any overload of run(), run_one(), poll() or poll_one() for the
+ * io_service.
+ *
+ * @par Effect of exceptions thrown from handlers
+ *
+ * If an exception is thrown from a handler, the exception is allowed to
+ * propagate through the throwing thread's invocation of run(), run_one(),
+ * poll() or poll_one(). No other threads that are calling any of these
+ * functions are affected. It is then the responsibility of the application to
+ * catch the exception.
+ *
+ * After the exception has been caught, the run(), run_one(), poll() or
+ * poll_one() call may be restarted @em without the need for an intervening
+ * call to reset(). This allows the thread to rejoin the io_service object's
+ * thread pool without impacting any other threads in the pool.
+ *
+ * For example:
+ *
+ * @code
+ * asio::io_service io_service;
+ * ...
+ * for (;;)
+ * {
+ *   try
+ *   {
+ *     io_service.run();
+ *     break; // run() exited normally
+ *   }
+ *   catch (my_exception& e)
+ *   {
+ *     // Deal with exception as appropriate.
+ *   }
+ * }
+ * @endcode
+ *
+ * @par Stopping the io_service from running out of work
+ *
+ * Some applications may need to prevent an io_service object's run() call from
+ * returning when there is no more work to do. For example, the io_service may
+ * be being run in a background thread that is launched prior to the
+ * application's asynchronous operations. The run() call may be kept running by
+ * creating an object of type asio::io_service::work:
+ *
+ * @code asio::io_service io_service;
+ * asio::io_service::work work(io_service);
+ * ... @endcode
+ *
+ * To effect a shutdown, the application will then need to call the io_service
+ * object's stop() member function. This will cause the io_service run() call
+ * to return as soon as possible, abandoning unfinished operations and without
+ * permitting ready handlers to be dispatched.
+ *
+ * Alternatively, if the application requires that all operations and handlers
+ * be allowed to finish normally, the work object may be explicitly destroyed.
+ *
+ * @code asio::io_service io_service;
+ * auto_ptr<asio::io_service::work> work(
+ *     new asio::io_service::work(io_service));
+ * ...
+ * work.reset(); // Allow run() to exit. @endcode
+ *
+ * @par The io_service class and I/O services
+ *
+ * Class io_service implements an extensible, type-safe, polymorphic set of I/O
+ * services, indexed by service type. An object of class io_service must be
+ * initialised before I/O objects such as sockets, resolvers and timers can be
+ * used. These I/O objects are distinguished by having constructors that accept
+ * an @c io_service& parameter.
+ *
+ * I/O services exist to manage the logical interface to the operating system on
+ * behalf of the I/O objects. In particular, there are resources that are shared
+ * across a class of I/O objects. For example, timers may be implemented in
+ * terms of a single timer queue. The I/O services manage these shared
+ * resources.
+ *
+ * Access to the services of an io_service is via three function templates,
+ * use_service(), add_service() and has_service().
+ *
+ * In a call to @c use_service<Service>(), the type argument chooses a service,
+ * making available all members of the named type. If @c Service is not present
+ * in an io_service, an object of type @c Service is created and added to the
+ * io_service. A C++ program can check if an io_service implements a
+ * particular service with the function template @c has_service<Service>().
+ *
+ * Service objects may be explicitly added to an io_service using the function
+ * template @c add_service<Service>(). If the @c Service is already present, the
+ * service_already_exists exception is thrown. If the owner of the service is
+ * not the same object as the io_service parameter, the invalid_service_owner
+ * exception is thrown.
+ *
+ * Once a service reference is obtained from an io_service object by calling
+ * use_service(), that reference remains usable as long as the owning io_service
+ * object exists.
+ *
+ * All I/O service implementations have io_service::service as a public base
+ * class. Custom I/O services may be implemented by deriving from this class and
+ * then added to an io_service using the facilities described above.
+ */
+class io_service
+  : private noncopyable
+{
+private:
+  typedef detail::io_service_impl impl_type;
+
+public:
+  class work;
+  friend class work;
+
+  class id;
+
+  class service;
+
+  class strand;
+
+  /// Constructor.
+  ASIO_DECL io_service();
+
+  /// Constructor.
+  /**
+   * Construct with a hint about the required level of concurrency.
+   *
+   * @param concurrency_hint A suggestion to the implementation on how many
+   * threads it should allow to run simultaneously.
+   */
+  ASIO_DECL explicit io_service(std::size_t concurrency_hint);
+
+  /// Destructor.
+  /**
+   * On destruction, the io_service performs the following sequence of
+   * operations:
+   *
+   * @li For each service object @c svc in the io_service set, in reverse order
+   * of the beginning of service object lifetime, performs
+   * @c svc->shutdown_service().
+   *
+   * @li Uninvoked handler objects that were scheduled for deferred invocation
+   * on the io_service, or any associated strand, are destroyed.
+   *
+   * @li For each service object @c svc in the io_service set, in reverse order
+   * of the beginning of service object lifetime, performs
+   * <tt>delete static_cast<io_service::service*>(svc)</tt>.
+   *
+   * @note The destruction sequence described above permits programs to
+   * simplify their resource management by using @c shared_ptr<>. Where an
+   * object's lifetime is tied to the lifetime of a connection (or some other
+   * sequence of asynchronous operations), a @c shared_ptr to the object would
+   * be bound into the handlers for all asynchronous operations associated with
+   * it. This works as follows:
+   *
+   * @li When a single connection ends, all associated asynchronous operations
+   * complete. The corresponding handler objects are destroyed, and all
+   * @c shared_ptr references to the objects are destroyed.
+   *
+   * @li To shut down the whole program, the io_service function stop() is
+   * called to terminate any run() calls as soon as possible. The io_service
+   * destructor defined above destroys all handlers, causing all @c shared_ptr
+   * references to all connection objects to be destroyed.
+   */
+  ASIO_DECL ~io_service();
+
+  /// Run the io_service object's event processing loop.
+  /**
+   * The run() function blocks until all work has finished and there are no
+   * more handlers to be dispatched, or until the io_service has been stopped.
+   *
+   * Multiple threads may call the run() function to set up a pool of threads
+   * from which the io_service may execute handlers. All threads that are
+   * waiting in the pool are equivalent and the io_service may choose any one
+   * of them to invoke a handler.
+   *
+   * A normal exit from the run() function implies that the io_service object
+   * is stopped (the stopped() function returns @c true). Subsequent calls to
+   * run(), run_one(), poll() or poll_one() will return immediately unless there
+   * is a prior call to reset().
+   *
+   * @return The number of handlers that were executed.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note The run() function must not be called from a thread that is currently
+   * calling one of run(), run_one(), poll() or poll_one() on the same
+   * io_service object.
+   *
+   * The poll() function may also be used to dispatch ready handlers, but
+   * without blocking.
+   */
+  ASIO_DECL std::size_t run();
+
+  /// Run the io_service object's event processing loop.
+  /**
+   * The run() function blocks until all work has finished and there are no
+   * more handlers to be dispatched, or until the io_service has been stopped.
+   *
+   * Multiple threads may call the run() function to set up a pool of threads
+   * from which the io_service may execute handlers. All threads that are
+   * waiting in the pool are equivalent and the io_service may choose any one
+   * of them to invoke a handler.
+   *
+   * A normal exit from the run() function implies that the io_service object
+   * is stopped (the stopped() function returns @c true). Subsequent calls to
+   * run(), run_one(), poll() or poll_one() will return immediately unless there
+   * is a prior call to reset().
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @return The number of handlers that were executed.
+   *
+   * @note The run() function must not be called from a thread that is currently
+   * calling one of run(), run_one(), poll() or poll_one() on the same
+   * io_service object.
+   *
+   * The poll() function may also be used to dispatch ready handlers, but
+   * without blocking.
+   */
+  ASIO_DECL std::size_t run(asio::error_code& ec);
+
+  /// Run the io_service object's event processing loop to execute at most one
+  /// handler.
+  /**
+   * The run_one() function blocks until one handler has been dispatched, or
+   * until the io_service has been stopped.
+   *
+   * @return The number of handlers that were executed. A zero return value
+   * implies that the io_service object is stopped (the stopped() function
+   * returns @c true). Subsequent calls to run(), run_one(), poll() or
+   * poll_one() will return immediately unless there is a prior call to
+   * reset().
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  ASIO_DECL std::size_t run_one();
+
+  /// Run the io_service object's event processing loop to execute at most one
+  /// handler.
+  /**
+   * The run_one() function blocks until one handler has been dispatched, or
+   * until the io_service has been stopped.
+   *
+   * @return The number of handlers that were executed. A zero return value
+   * implies that the io_service object is stopped (the stopped() function
+   * returns @c true). Subsequent calls to run(), run_one(), poll() or
+   * poll_one() will return immediately unless there is a prior call to
+   * reset().
+   *
+   * @return The number of handlers that were executed.
+   */
+  ASIO_DECL std::size_t run_one(asio::error_code& ec);
+
+  /// Run the io_service object's event processing loop to execute ready
+  /// handlers.
+  /**
+   * The poll() function runs handlers that are ready to run, without blocking,
+   * until the io_service has been stopped or there are no more ready handlers.
+   *
+   * @return The number of handlers that were executed.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  ASIO_DECL std::size_t poll();
+
+  /// Run the io_service object's event processing loop to execute ready
+  /// handlers.
+  /**
+   * The poll() function runs handlers that are ready to run, without blocking,
+   * until the io_service has been stopped or there are no more ready handlers.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @return The number of handlers that were executed.
+   */
+  ASIO_DECL std::size_t poll(asio::error_code& ec);
+
+  /// Run the io_service object's event processing loop to execute one ready
+  /// handler.
+  /**
+   * The poll_one() function runs at most one handler that is ready to run,
+   * without blocking.
+   *
+   * @return The number of handlers that were executed.
+   *
+   * @throws asio::system_error Thrown on failure.
+   */
+  ASIO_DECL std::size_t poll_one();
+
+  /// Run the io_service object's event processing loop to execute one ready
+  /// handler.
+  /**
+   * The poll_one() function runs at most one handler that is ready to run,
+   * without blocking.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @return The number of handlers that were executed.
+   */
+  ASIO_DECL std::size_t poll_one(asio::error_code& ec);
+
+  /// Stop the io_service object's event processing loop.
+  /**
+   * This function does not block, but instead simply signals the io_service to
+   * stop. All invocations of its run() or run_one() member functions should
+   * return as soon as possible. Subsequent calls to run(), run_one(), poll()
+   * or poll_one() will return immediately until reset() is called.
+   */
+  ASIO_DECL void stop();
+
+  /// Determine whether the io_service object has been stopped.
+  /**
+   * This function is used to determine whether an io_service object has been
+   * stopped, either through an explicit call to stop(), or due to running out
+   * of work. When an io_service object is stopped, calls to run(), run_one(),
+   * poll() or poll_one() will return immediately without invoking any
+   * handlers.
+   *
+   * @return @c true if the io_service object is stopped, otherwise @c false.
+   */
+  ASIO_DECL bool stopped() const;
+
+  /// Reset the io_service in preparation for a subsequent run() invocation.
+  /**
+   * This function must be called prior to any second or later set of
+   * invocations of the run(), run_one(), poll() or poll_one() functions when a
+   * previous invocation of these functions returned due to the io_service
+   * being stopped or running out of work. After a call to reset(), the
+   * io_service object's stopped() function will return @c false.
+   *
+   * This function must not be called while there are any unfinished calls to
+   * the run(), run_one(), poll() or poll_one() functions.
+   */
+  ASIO_DECL void reset();
+
+  /// Request the io_service to invoke the given handler.
+  /**
+   * This function is used to ask the io_service to execute the given handler.
+   *
+   * The io_service guarantees that the handler will only be called in a thread
+   * in which the run(), run_one(), poll() or poll_one() member functions is
+   * currently being invoked. The handler may be executed inside this function
+   * if the guarantee can be met.
+   *
+   * @param handler The handler to be called. The io_service will make
+   * a copy of the handler object as required. The function signature of the
+   * handler must be: @code void handler(); @endcode
+   *
+   * @note This function throws an exception only if:
+   *
+   * @li the handler's @c asio_handler_allocate function; or
+   *
+   * @li the handler's copy constructor
+   *
+   * throws an exception.
+   */
+  template <typename CompletionHandler>
+  ASIO_INITFN_RESULT_TYPE(CompletionHandler, void ())
+  dispatch(ASIO_MOVE_ARG(CompletionHandler) handler);
+
+  /// Request the io_service to invoke the given handler and return immediately.
+  /**
+   * This function is used to ask the io_service to execute the given handler,
+   * but without allowing the io_service to call the handler from inside this
+   * function.
+   *
+   * The io_service guarantees that the handler will only be called in a thread
+   * in which the run(), run_one(), poll() or poll_one() member functions is
+   * currently being invoked.
+   *
+   * @param handler The handler to be called. The io_service will make
+   * a copy of the handler object as required. The function signature of the
+   * handler must be: @code void handler(); @endcode
+   *
+   * @note This function throws an exception only if:
+   *
+   * @li the handler's @c asio_handler_allocate function; or
+   *
+   * @li the handler's copy constructor
+   *
+   * throws an exception.
+   */
+  template <typename CompletionHandler>
+  ASIO_INITFN_RESULT_TYPE(CompletionHandler, void ())
+  post(ASIO_MOVE_ARG(CompletionHandler) handler);
+
+  /// Create a new handler that automatically dispatches the wrapped handler
+  /// on the io_service.
+  /**
+   * This function is used to create a new handler function object that, when
+   * invoked, will automatically pass the wrapped handler to the io_service
+   * object's dispatch function.
+   *
+   * @param handler The handler to be wrapped. The io_service will make a copy
+   * of the handler object as required. The function signature of the handler
+   * must be: @code void handler(A1 a1, ... An an); @endcode
+   *
+   * @return A function object that, when invoked, passes the wrapped handler to
+   * the io_service object's dispatch function. Given a function object with the
+   * signature:
+   * @code R f(A1 a1, ... An an); @endcode
+   * If this function object is passed to the wrap function like so:
+   * @code io_service.wrap(f); @endcode
+   * then the return value is a function object with the signature
+   * @code void g(A1 a1, ... An an); @endcode
+   * that, when invoked, executes code equivalent to:
+   * @code io_service.dispatch(boost::bind(f, a1, ... an)); @endcode
+   */
+  template <typename Handler>
+  detail::wrapped_handler<io_service&, Handler>
+  wrap(Handler handler);
+
+  /// Fork-related event notifications.
+  enum fork_event
+  {
+    /// Notify the io_service that the process is about to fork.
+    fork_prepare,
+
+    /// Notify the io_service that the process has forked and is the parent.
+    fork_parent,
+
+    /// Notify the io_service that the process has forked and is the child.
+    fork_child
+  };
+
+  /// Notify the io_service of a fork-related event.
+  /**
+   * This function is used to inform the io_service that the process is about
+   * to fork, or has just forked. This allows the io_service, and the services
+   * it contains, to perform any necessary housekeeping to ensure correct
+   * operation following a fork.
+   *
+   * This function must not be called while any other io_service function, or
+   * any function on an I/O object associated with the io_service, is being
+   * called in another thread. It is, however, safe to call this function from
+   * within a completion handler, provided no other thread is accessing the
+   * io_service.
+   *
+   * @param event A fork-related event.
+   *
+   * @throws asio::system_error Thrown on failure. If the notification
+   * fails the io_service object should no longer be used and should be
+   * destroyed.
+   *
+   * @par Example
+   * The following code illustrates how to incorporate the notify_fork()
+   * function:
+   * @code my_io_service.notify_fork(asio::io_service::fork_prepare);
+   * if (fork() == 0)
+   * {
+   *   // This is the child process.
+   *   my_io_service.notify_fork(asio::io_service::fork_child);
+   * }
+   * else
+   * {
+   *   // This is the parent process.
+   *   my_io_service.notify_fork(asio::io_service::fork_parent);
+   * } @endcode
+   *
+   * @note For each service object @c svc in the io_service set, performs
+   * <tt>svc->fork_service();</tt>. When processing the fork_prepare event,
+   * services are visited in reverse order of the beginning of service object
+   * lifetime. Otherwise, services are visited in order of the beginning of
+   * service object lifetime.
+   */
+  ASIO_DECL void notify_fork(asio::io_service::fork_event event);
+
+  /// Obtain the service object corresponding to the given type.
+  /**
+   * This function is used to locate a service object that corresponds to
+   * the given service type. If there is no existing implementation of the
+   * service, then the io_service will create a new instance of the service.
+   *
+   * @param ios The io_service object that owns the service.
+   *
+   * @return The service interface implementing the specified service type.
+   * Ownership of the service interface is not transferred to the caller.
+   */
+  template <typename Service>
+  friend Service& use_service(io_service& ios);
+
+  /// Add a service object to the io_service.
+  /**
+   * This function is used to add a service to the io_service.
+   *
+   * @param ios The io_service object that owns the service.
+   *
+   * @param svc The service object. On success, ownership of the service object
+   * is transferred to the io_service. When the io_service object is destroyed,
+   * it will destroy the service object by performing:
+   * @code delete static_cast<io_service::service*>(svc) @endcode
+   *
+   * @throws asio::service_already_exists Thrown if a service of the
+   * given type is already present in the io_service.
+   *
+   * @throws asio::invalid_service_owner Thrown if the service's owning
+   * io_service is not the io_service object specified by the ios parameter.
+   */
+  template <typename Service>
+  friend void add_service(io_service& ios, Service* svc);
+
+  /// Determine if an io_service contains a specified service type.
+  /**
+   * This function is used to determine whether the io_service contains a
+   * service object corresponding to the given service type.
+   *
+   * @param ios The io_service object that owns the service.
+   *
+   * @return A boolean indicating whether the io_service contains the service.
+   */
+  template <typename Service>
+  friend bool has_service(io_service& ios);
+
+private:
+#if   defined(__sun) || defined(__QNX__) || defined(__hpux) || defined(_AIX)    || defined(__osf__)
+  detail::signal_init<> init_;
+#endif
+
+  // The service registry.
+  asio::detail::service_registry* service_registry_;
+
+  // The implementation.
+  impl_type& impl_;
+};
+
+/// Class to inform the io_service when it has work to do.
+/**
+ * The work class is used to inform the io_service when work starts and
+ * finishes. This ensures that the io_service object's run() function will not
+ * exit while work is underway, and that it does exit when there is no
+ * unfinished work remaining.
+ *
+ * The work class is copy-constructible so that it may be used as a data member
+ * in a handler class. It is not assignable.
+ */
+class io_service::work
+{
+public:
+  /// Constructor notifies the io_service that work is starting.
+  /**
+   * The constructor is used to inform the io_service that some work has begun.
+   * This ensures that the io_service object's run() function will not exit
+   * while the work is underway.
+   */
+  explicit work(asio::io_service& io_service);
+
+  /// Copy constructor notifies the io_service that work is starting.
+  /**
+   * The constructor is used to inform the io_service that some work has begun.
+   * This ensures that the io_service object's run() function will not exit
+   * while the work is underway.
+   */
+  work(const work& other);
+
+  /// Destructor notifies the io_service that the work is complete.
+  /**
+   * The destructor is used to inform the io_service that some work has
+   * finished. Once the count of unfinished work reaches zero, the io_service
+   * object's run() function is permitted to exit.
+   */
+  ~work();
+
+  /// Get the io_service associated with the work.
+  asio::io_service& get_io_service();
+
+private:
+  // Prevent assignment.
+  void operator=(const work& other);
+
+  // The io_service implementation.
+  detail::io_service_impl& io_service_impl_;
+};
+
+/// Class used to uniquely identify a service.
+class io_service::id
+  : private noncopyable
+{
+public:
+  /// Constructor.
+  id() {}
+};
+
+/// Base class for all io_service services.
+class io_service::service
+  : private noncopyable
+{
+public:
+  /// Get the io_service object that owns the service.
+  asio::io_service& get_io_service();
+
+protected:
+  /// Constructor.
+  /**
+   * @param owner The io_service object that owns the service.
+   */
+  ASIO_DECL service(asio::io_service& owner);
+
+  /// Destructor.
+  ASIO_DECL virtual ~service();
+
+private:
+  /// Destroy all user-defined handler objects owned by the service.
+  virtual void shutdown_service() = 0;
+
+  /// Handle notification of a fork-related event to perform any necessary
+  /// housekeeping.
+  /**
+   * This function is not a pure virtual so that services only have to
+   * implement it if necessary. The default implementation does nothing.
+   */
+  ASIO_DECL virtual void fork_service(
+      asio::io_service::fork_event event);
+
+  friend class asio::detail::service_registry;
+  struct key
+  {
+    key() : type_info_(0), id_(0) {}
+    const std::type_info* type_info_;
+    const asio::io_service::id* id_;
+  } key_;
+
+  asio::io_service& owner_;
+  service* next_;
+};
+
+/// Exception thrown when trying to add a duplicate service to an io_service.
+class service_already_exists
+  : public std::logic_error
+{
+public:
+  ASIO_DECL service_already_exists();
+};
+
+/// Exception thrown when trying to add a service object to an io_service where
+/// the service has a different owner.
+class invalid_service_owner
+  : public std::logic_error
+{
+public:
+  ASIO_DECL invalid_service_owner();
+};
+
+namespace detail {
+
+// Special derived service id type to keep classes header-file only.
+template <typename Type>
+class service_id
+  : public asio::io_service::id
+{
+};
+
+// Special service base class to keep classes header-file only.
+template <typename Type>
+class service_base
+  : public asio::io_service::service
+{
+public:
+  static asio::detail::service_id<Type> id;
+
+  // Constructor.
+  service_base(asio::io_service& io_service)
+    : asio::io_service::service(io_service)
+  {
+  }
+};
+
+template <typename Type>
+asio::detail::service_id<Type> service_base<Type>::id;
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/impl/io_service.hpp"
+# include "asio/impl/io_service.ipp"
+
+#endif // ASIO_IO_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/ip/address.hpp b/asio-1.10.6/include/asio/ip/address.hpp
new file mode 100644
index 0000000..bae5871
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/address.hpp
@@ -0,0 +1,169 @@
+//
+// ip/address.hpp
+// ~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_ADDRESS_HPP
+#define ASIO_IP_ADDRESS_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <string>
+#include "asio/error_code.hpp"
+#include "asio/ip/address_v4.hpp"
+#include "asio/ip/address_v6.hpp"
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// Implements version-independent IP addresses.
+/**
+ * The asio::ip::address class provides the ability to use either IP
+ * version 4 or version 6 addresses.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+class address
+{
+public:
+  /// Default constructor.
+  ASIO_DECL address();
+
+  /// Construct an address from an IPv4 address.
+  ASIO_DECL address(const asio::ip::address_v4& ipv4_address);
+
+  /// Construct an address from an IPv6 address.
+  ASIO_DECL address(const asio::ip::address_v6& ipv6_address);
+
+  /// Copy constructor.
+  ASIO_DECL address(const address& other);
+
+  /// Move constructor.
+  ASIO_DECL address(address&& other);
+
+  /// Assign from another address.
+  ASIO_DECL address& operator=(const address& other);
+
+  /// Move-assign from another address.
+  ASIO_DECL address& operator=(address&& other);
+
+  /// Assign from an IPv4 address.
+  ASIO_DECL address& operator=(
+      const asio::ip::address_v4& ipv4_address);
+
+  /// Assign from an IPv6 address.
+  ASIO_DECL address& operator=(
+      const asio::ip::address_v6& ipv6_address);
+
+  /// Get whether the address is an IP version 4 address.
+  bool is_v4() const
+  {
+    return type_ == ipv4;
+  }
+
+  /// Get whether the address is an IP version 6 address.
+  bool is_v6() const
+  {
+    return type_ == ipv6;
+  }
+
+  /// Get the address as an IP version 4 address.
+  ASIO_DECL asio::ip::address_v4 to_v4() const;
+
+  /// Get the address as an IP version 6 address.
+  ASIO_DECL asio::ip::address_v6 to_v6() const;
+
+  /// Get the address as a string in dotted decimal format.
+  ASIO_DECL std::string to_string() const;
+
+  /// Get the address as a string in dotted decimal format.
+  ASIO_DECL std::string to_string(asio::error_code& ec) const;
+
+  /// Create an address from an IPv4 address string in dotted decimal form,
+  /// or from an IPv6 address in hexadecimal notation.
+  ASIO_DECL static address from_string(const char* str);
+
+  /// Create an address from an IPv4 address string in dotted decimal form,
+  /// or from an IPv6 address in hexadecimal notation.
+  ASIO_DECL static address from_string(
+      const char* str, asio::error_code& ec);
+
+  /// Create an address from an IPv4 address string in dotted decimal form,
+  /// or from an IPv6 address in hexadecimal notation.
+  ASIO_DECL static address from_string(const std::string& str);
+
+  /// Create an address from an IPv4 address string in dotted decimal form,
+  /// or from an IPv6 address in hexadecimal notation.
+  ASIO_DECL static address from_string(
+      const std::string& str, asio::error_code& ec);
+
+  /// Determine whether the address is a loopback address.
+  ASIO_DECL bool is_loopback() const;
+
+  /// Determine whether the address is unspecified.
+  ASIO_DECL bool is_unspecified() const;
+
+  /// Determine whether the address is a multicast address.
+  ASIO_DECL bool is_multicast() const;
+
+  /// Compare two addresses for equality.
+  ASIO_DECL friend bool operator==(const address& a1, const address& a2);
+
+  /// Compare two addresses for inequality.
+  friend bool operator!=(const address& a1, const address& a2)
+  {
+    return !(a1 == a2);
+  }
+
+  /// Compare addresses for ordering.
+  ASIO_DECL friend bool operator<(const address& a1, const address& a2);
+
+  /// Compare addresses for ordering.
+  friend bool operator>(const address& a1, const address& a2)
+  {
+    return a2 < a1;
+  }
+
+  /// Compare addresses for ordering.
+  friend bool operator<=(const address& a1, const address& a2)
+  {
+    return !(a2 < a1);
+  }
+
+  /// Compare addresses for ordering.
+  friend bool operator>=(const address& a1, const address& a2)
+  {
+    return !(a1 < a2);
+  }
+
+private:
+  // The type of the address.
+  enum { ipv4, ipv6 } type_;
+
+  // The underlying IPv4 address.
+  asio::ip::address_v4 ipv4_address_;
+
+  // The underlying IPv6 address.
+  asio::ip::address_v6 ipv6_address_;
+};
+
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/ip/impl/address.hpp"
+# include "asio/ip/impl/address.ipp"
+
+#endif // ASIO_IP_ADDRESS_HPP
diff --git a/asio-1.10.6/include/asio/ip/address_v4.hpp b/asio-1.10.6/include/asio/ip/address_v4.hpp
new file mode 100644
index 0000000..4b6d5e8
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/address_v4.hpp
@@ -0,0 +1,206 @@
+//
+// ip/address_v4.hpp
+// ~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_ADDRESS_V4_HPP
+#define ASIO_IP_ADDRESS_V4_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <string>
+#include "asio/detail/array.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/winsock_init.hpp"
+#include "asio/error_code.hpp"
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// Implements IP version 4 style addresses.
+/**
+ * The asio::ip::address_v4 class provides the ability to use and
+ * manipulate IP version 4 addresses.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+class address_v4
+{
+public:
+  /// The type used to represent an address as an array of bytes.
+  /**
+   * @note This type is defined in terms of the C++0x template @c std::array
+   * when it is available. Otherwise, it uses @c boost:array.
+   */
+  typedef asio::detail::array<unsigned char, 4> bytes_type;
+
+  /// Default constructor.
+  address_v4()
+  {
+    addr_.s_addr = 0;
+  }
+
+  /// Construct an address from raw bytes.
+  ASIO_DECL explicit address_v4(const bytes_type& bytes);
+
+  /// Construct an address from a unsigned long in host byte order.
+  ASIO_DECL explicit address_v4(unsigned long addr);
+
+  /// Copy constructor.
+  address_v4(const address_v4& other)
+    : addr_(other.addr_)
+  {
+  }
+
+  /// Move constructor.
+  address_v4(address_v4&& other)
+    : addr_(other.addr_)
+  {
+  }
+
+  /// Assign from another address.
+  address_v4& operator=(const address_v4& other)
+  {
+    addr_ = other.addr_;
+    return *this;
+  }
+
+  /// Move-assign from another address.
+  address_v4& operator=(address_v4&& other)
+  {
+    addr_ = other.addr_;
+    return *this;
+  }
+
+  /// Get the address in bytes, in network byte order.
+  ASIO_DECL bytes_type to_bytes() const;
+
+  /// Get the address as an unsigned long in host byte order
+  ASIO_DECL unsigned long to_ulong() const;
+
+  /// Get the address as a string in dotted decimal format.
+  ASIO_DECL std::string to_string() const;
+
+  /// Get the address as a string in dotted decimal format.
+  ASIO_DECL std::string to_string(asio::error_code& ec) const;
+
+  /// Create an address from an IP address string in dotted decimal form.
+  ASIO_DECL static address_v4 from_string(const char* str);
+
+  /// Create an address from an IP address string in dotted decimal form.
+  ASIO_DECL static address_v4 from_string(
+      const char* str, asio::error_code& ec);
+
+  /// Create an address from an IP address string in dotted decimal form.
+  ASIO_DECL static address_v4 from_string(const std::string& str);
+
+  /// Create an address from an IP address string in dotted decimal form.
+  ASIO_DECL static address_v4 from_string(
+      const std::string& str, asio::error_code& ec);
+
+  /// Determine whether the address is a loopback address.
+  ASIO_DECL bool is_loopback() const;
+
+  /// Determine whether the address is unspecified.
+  ASIO_DECL bool is_unspecified() const;
+
+  /// Determine whether the address is a class A address.
+  ASIO_DECL bool is_class_a() const;
+
+  /// Determine whether the address is a class B address.
+  ASIO_DECL bool is_class_b() const;
+
+  /// Determine whether the address is a class C address.
+  ASIO_DECL bool is_class_c() const;
+
+  /// Determine whether the address is a multicast address.
+  ASIO_DECL bool is_multicast() const;
+
+  /// Compare two addresses for equality.
+  friend bool operator==(const address_v4& a1, const address_v4& a2)
+  {
+    return a1.addr_.s_addr == a2.addr_.s_addr;
+  }
+
+  /// Compare two addresses for inequality.
+  friend bool operator!=(const address_v4& a1, const address_v4& a2)
+  {
+    return a1.addr_.s_addr != a2.addr_.s_addr;
+  }
+
+  /// Compare addresses for ordering.
+  friend bool operator<(const address_v4& a1, const address_v4& a2)
+  {
+    return a1.to_ulong() < a2.to_ulong();
+  }
+
+  /// Compare addresses for ordering.
+  friend bool operator>(const address_v4& a1, const address_v4& a2)
+  {
+    return a1.to_ulong() > a2.to_ulong();
+  }
+
+  /// Compare addresses for ordering.
+  friend bool operator<=(const address_v4& a1, const address_v4& a2)
+  {
+    return a1.to_ulong() <= a2.to_ulong();
+  }
+
+  /// Compare addresses for ordering.
+  friend bool operator>=(const address_v4& a1, const address_v4& a2)
+  {
+    return a1.to_ulong() >= a2.to_ulong();
+  }
+
+  /// Obtain an address object that represents any address.
+  static address_v4 any()
+  {
+    return address_v4();
+  }
+
+  /// Obtain an address object that represents the loopback address.
+  static address_v4 loopback()
+  {
+    return address_v4(0x7F000001);
+  }
+
+  /// Obtain an address object that represents the broadcast address.
+  static address_v4 broadcast()
+  {
+    return address_v4(0xFFFFFFFF);
+  }
+
+  /// Obtain an address object that represents the broadcast address that
+  /// corresponds to the specified address and netmask.
+  ASIO_DECL static address_v4 broadcast(
+      const address_v4& addr, const address_v4& mask);
+
+  /// Obtain the netmask that corresponds to the address, based on its address
+  /// class.
+  ASIO_DECL static address_v4 netmask(const address_v4& addr);
+
+private:
+  // The underlying IPv4 address.
+  asio::detail::in4_addr_type addr_;
+};
+
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/ip/impl/address_v4.hpp"
+# include "asio/ip/impl/address_v4.ipp"
+
+#endif // ASIO_IP_ADDRESS_V4_HPP
diff --git a/asio-1.10.6/include/asio/ip/address_v6.hpp b/asio-1.10.6/include/asio/ip/address_v6.hpp
new file mode 100644
index 0000000..b8602c3
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/address_v6.hpp
@@ -0,0 +1,211 @@
+//
+// ip/address_v6.hpp
+// ~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_ADDRESS_V6_HPP
+#define ASIO_IP_ADDRESS_V6_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <string>
+#include "asio/detail/array.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/winsock_init.hpp"
+#include "asio/error_code.hpp"
+#include "asio/ip/address_v4.hpp"
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// Implements IP version 6 style addresses.
+/**
+ * The asio::ip::address_v6 class provides the ability to use and
+ * manipulate IP version 6 addresses.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+class address_v6
+{
+public:
+  /// The type used to represent an address as an array of bytes.
+  /**
+   * @note This type is defined in terms of the C++0x template @c std::array
+   * when it is available. Otherwise, it uses @c boost:array.
+   */
+  typedef asio::detail::array<unsigned char, 16> bytes_type;
+
+  /// Default constructor.
+  ASIO_DECL address_v6();
+
+  /// Construct an address from raw bytes and scope ID.
+  ASIO_DECL explicit address_v6(const bytes_type& bytes,
+      unsigned long scope_id = 0);
+
+  /// Copy constructor.
+  ASIO_DECL address_v6(const address_v6& other);
+
+  /// Move constructor.
+  ASIO_DECL address_v6(address_v6&& other);
+
+  /// Assign from another address.
+  ASIO_DECL address_v6& operator=(const address_v6& other);
+
+  /// Move-assign from another address.
+  ASIO_DECL address_v6& operator=(address_v6&& other);
+
+  /// The scope ID of the address.
+  /**
+   * Returns the scope ID associated with the IPv6 address.
+   */
+  unsigned long scope_id() const
+  {
+    return scope_id_;
+  }
+
+  /// The scope ID of the address.
+  /**
+   * Modifies the scope ID associated with the IPv6 address.
+   */
+  void scope_id(unsigned long id)
+  {
+    scope_id_ = id;
+  }
+
+  /// Get the address in bytes, in network byte order.
+  ASIO_DECL bytes_type to_bytes() const;
+
+  /// Get the address as a string.
+  ASIO_DECL std::string to_string() const;
+
+  /// Get the address as a string.
+  ASIO_DECL std::string to_string(asio::error_code& ec) const;
+
+  /// Create an address from an IP address string.
+  ASIO_DECL static address_v6 from_string(const char* str);
+
+  /// Create an address from an IP address string.
+  ASIO_DECL static address_v6 from_string(
+      const char* str, asio::error_code& ec);
+
+  /// Create an address from an IP address string.
+  ASIO_DECL static address_v6 from_string(const std::string& str);
+
+  /// Create an address from an IP address string.
+  ASIO_DECL static address_v6 from_string(
+      const std::string& str, asio::error_code& ec);
+
+  /// Converts an IPv4-mapped or IPv4-compatible address to an IPv4 address.
+  ASIO_DECL address_v4 to_v4() const;
+
+  /// Determine whether the address is a loopback address.
+  ASIO_DECL bool is_loopback() const;
+
+  /// Determine whether the address is unspecified.
+  ASIO_DECL bool is_unspecified() const;
+
+  /// Determine whether the address is link local.
+  ASIO_DECL bool is_link_local() const;
+
+  /// Determine whether the address is site local.
+  ASIO_DECL bool is_site_local() const;
+
+  /// Determine whether the address is a mapped IPv4 address.
+  ASIO_DECL bool is_v4_mapped() const;
+
+  /// Determine whether the address is an IPv4-compatible address.
+  ASIO_DECL bool is_v4_compatible() const;
+
+  /// Determine whether the address is a multicast address.
+  ASIO_DECL bool is_multicast() const;
+
+  /// Determine whether the address is a global multicast address.
+  ASIO_DECL bool is_multicast_global() const;
+
+  /// Determine whether the address is a link-local multicast address.
+  ASIO_DECL bool is_multicast_link_local() const;
+
+  /// Determine whether the address is a node-local multicast address.
+  ASIO_DECL bool is_multicast_node_local() const;
+
+  /// Determine whether the address is a org-local multicast address.
+  ASIO_DECL bool is_multicast_org_local() const;
+
+  /// Determine whether the address is a site-local multicast address.
+  ASIO_DECL bool is_multicast_site_local() const;
+
+  /// Compare two addresses for equality.
+  ASIO_DECL friend bool operator==(
+      const address_v6& a1, const address_v6& a2);
+
+  /// Compare two addresses for inequality.
+  friend bool operator!=(const address_v6& a1, const address_v6& a2)
+  {
+    return !(a1 == a2);
+  }
+
+  /// Compare addresses for ordering.
+  ASIO_DECL friend bool operator<(
+      const address_v6& a1, const address_v6& a2);
+
+  /// Compare addresses for ordering.
+  friend bool operator>(const address_v6& a1, const address_v6& a2)
+  {
+    return a2 < a1;
+  }
+
+  /// Compare addresses for ordering.
+  friend bool operator<=(const address_v6& a1, const address_v6& a2)
+  {
+    return !(a2 < a1);
+  }
+
+  /// Compare addresses for ordering.
+  friend bool operator>=(const address_v6& a1, const address_v6& a2)
+  {
+    return !(a1 < a2);
+  }
+
+  /// Obtain an address object that represents any address.
+  static address_v6 any()
+  {
+    return address_v6();
+  }
+
+  /// Obtain an address object that represents the loopback address.
+  ASIO_DECL static address_v6 loopback();
+
+  /// Create an IPv4-mapped IPv6 address.
+  ASIO_DECL static address_v6 v4_mapped(const address_v4& addr);
+
+  /// Create an IPv4-compatible IPv6 address.
+  ASIO_DECL static address_v6 v4_compatible(const address_v4& addr);
+
+private:
+  // The underlying IPv6 address.
+  asio::detail::in6_addr_type addr_;
+
+  // The scope ID associated with the address.
+  unsigned long scope_id_;
+};
+
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/ip/impl/address_v6.hpp"
+# include "asio/ip/impl/address_v6.ipp"
+
+#endif // ASIO_IP_ADDRESS_V6_HPP
diff --git a/asio-1.10.6/include/asio/ip/basic_endpoint.hpp b/asio-1.10.6/include/asio/ip/basic_endpoint.hpp
new file mode 100644
index 0000000..43bfa8f
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/basic_endpoint.hpp
@@ -0,0 +1,229 @@
+//
+// ip/basic_endpoint.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_BASIC_ENDPOINT_HPP
+#define ASIO_IP_BASIC_ENDPOINT_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/ip/address.hpp"
+#include "asio/ip/detail/endpoint.hpp"
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// Describes an endpoint for a version-independent IP socket.
+/**
+ * The asio::ip::basic_endpoint class template describes an endpoint that
+ * may be associated with a particular socket.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ *
+ * @par Concepts:
+ * Endpoint.
+ */
+template <typename InternetProtocol>
+class basic_endpoint
+{
+public:
+  /// The protocol type associated with the endpoint.
+  typedef InternetProtocol protocol_type;
+
+  /// The type of the endpoint structure. This type is dependent on the
+  /// underlying implementation of the socket layer.
+  typedef asio::detail::socket_addr_type data_type;
+
+  /// Default constructor.
+  basic_endpoint()
+    : impl_()
+  {
+  }
+
+  /// Construct an endpoint using a port number, specified in the host's byte
+  /// order. The IP address will be the any address (i.e. INADDR_ANY or
+  /// in6addr_any). This constructor would typically be used for accepting new
+  /// connections.
+  /**
+   * @par Examples
+   * To initialise an IPv4 TCP endpoint for port 1234, use:
+   * @code
+   * asio::ip::tcp::endpoint ep(asio::ip::tcp::v4(), 1234);
+   * @endcode
+   *
+   * To specify an IPv6 UDP endpoint for port 9876, use:
+   * @code
+   * asio::ip::udp::endpoint ep(asio::ip::udp::v6(), 9876);
+   * @endcode
+   */
+  basic_endpoint(const InternetProtocol& internet_protocol,
+      unsigned short port_num)
+    : impl_(internet_protocol.family(), port_num)
+  {
+  }
+
+  /// Construct an endpoint using a port number and an IP address. This
+  /// constructor may be used for accepting connections on a specific interface
+  /// or for making a connection to a remote endpoint.
+  basic_endpoint(const asio::ip::address& addr, unsigned short port_num)
+    : impl_(addr, port_num)
+  {
+  }
+
+  /// Copy constructor.
+  basic_endpoint(const basic_endpoint& other)
+    : impl_(other.impl_)
+  {
+  }
+
+  /// Move constructor.
+  basic_endpoint(basic_endpoint&& other)
+    : impl_(other.impl_)
+  {
+  }
+
+  /// Assign from another endpoint.
+  basic_endpoint& operator=(const basic_endpoint& other)
+  {
+    impl_ = other.impl_;
+    return *this;
+  }
+
+  /// Move-assign from another endpoint.
+  basic_endpoint& operator=(basic_endpoint&& other)
+  {
+    impl_ = other.impl_;
+    return *this;
+  }
+
+  /// The protocol associated with the endpoint.
+  protocol_type protocol() const
+  {
+    if (impl_.is_v4())
+      return InternetProtocol::v4();
+    return InternetProtocol::v6();
+  }
+
+  /// Get the underlying endpoint in the native type.
+  data_type* data()
+  {
+    return impl_.data();
+  }
+
+  /// Get the underlying endpoint in the native type.
+  const data_type* data() const
+  {
+    return impl_.data();
+  }
+
+  /// Get the underlying size of the endpoint in the native type.
+  std::size_t size() const
+  {
+    return impl_.size();
+  }
+
+  /// Set the underlying size of the endpoint in the native type.
+  void resize(std::size_t new_size)
+  {
+    impl_.resize(new_size);
+  }
+
+  /// Get the capacity of the endpoint in the native type.
+  std::size_t capacity() const
+  {
+    return impl_.capacity();
+  }
+
+  /// Get the port associated with the endpoint. The port number is always in
+  /// the host's byte order.
+  unsigned short port() const
+  {
+    return impl_.port();
+  }
+
+  /// Set the port associated with the endpoint. The port number is always in
+  /// the host's byte order.
+  void port(unsigned short port_num)
+  {
+    impl_.port(port_num);
+  }
+
+  /// Get the IP address associated with the endpoint.
+  asio::ip::address address() const
+  {
+    return impl_.address();
+  }
+
+  /// Set the IP address associated with the endpoint.
+  void address(const asio::ip::address& addr)
+  {
+    impl_.address(addr);
+  }
+
+  /// Compare two endpoints for equality.
+  friend bool operator==(const basic_endpoint<InternetProtocol>& e1,
+      const basic_endpoint<InternetProtocol>& e2)
+  {
+    return e1.impl_ == e2.impl_;
+  }
+
+  /// Compare two endpoints for inequality.
+  friend bool operator!=(const basic_endpoint<InternetProtocol>& e1,
+      const basic_endpoint<InternetProtocol>& e2)
+  {
+    return !(e1 == e2);
+  }
+
+  /// Compare endpoints for ordering.
+  friend bool operator<(const basic_endpoint<InternetProtocol>& e1,
+      const basic_endpoint<InternetProtocol>& e2)
+  {
+    return e1.impl_ < e2.impl_;
+  }
+
+  /// Compare endpoints for ordering.
+  friend bool operator>(const basic_endpoint<InternetProtocol>& e1,
+      const basic_endpoint<InternetProtocol>& e2)
+  {
+    return e2.impl_ < e1.impl_;
+  }
+
+  /// Compare endpoints for ordering.
+  friend bool operator<=(const basic_endpoint<InternetProtocol>& e1,
+      const basic_endpoint<InternetProtocol>& e2)
+  {
+    return !(e2 < e1);
+  }
+
+  /// Compare endpoints for ordering.
+  friend bool operator>=(const basic_endpoint<InternetProtocol>& e1,
+      const basic_endpoint<InternetProtocol>& e2)
+  {
+    return !(e1 < e2);
+  }
+
+private:
+  // The underlying IP endpoint.
+  asio::ip::detail::endpoint impl_;
+};
+
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/ip/impl/basic_endpoint.hpp"
+
+#endif // ASIO_IP_BASIC_ENDPOINT_HPP
diff --git a/asio-1.10.6/include/asio/ip/basic_resolver.hpp b/asio-1.10.6/include/asio/ip/basic_resolver.hpp
new file mode 100644
index 0000000..8097ae1
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/basic_resolver.hpp
@@ -0,0 +1,265 @@
+//
+// ip/basic_resolver.hpp
+// ~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_BASIC_RESOLVER_HPP
+#define ASIO_IP_BASIC_RESOLVER_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/basic_io_object.hpp"
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+#include "asio/ip/basic_resolver_iterator.hpp"
+#include "asio/ip/basic_resolver_query.hpp"
+#include "asio/ip/resolver_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// Provides endpoint resolution functionality.
+/**
+ * The basic_resolver class template provides the ability to resolve a query
+ * to a list of endpoints.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+template <typename InternetProtocol,
+    typename ResolverService = resolver_service<InternetProtocol> >
+class basic_resolver
+  : public basic_io_object<ResolverService>
+{
+public:
+  /// The protocol type.
+  typedef InternetProtocol protocol_type;
+
+  /// The endpoint type.
+  typedef typename InternetProtocol::endpoint endpoint_type;
+
+  /// The query type.
+  typedef basic_resolver_query<InternetProtocol> query;
+
+  /// The iterator type.
+  typedef basic_resolver_iterator<InternetProtocol> iterator;
+
+  /// Constructor.
+  /**
+   * This constructor creates a basic_resolver.
+   *
+   * @param io_service The io_service object that the resolver will use to
+   * dispatch handlers for any asynchronous operations performed on the timer.
+   */
+  explicit basic_resolver(asio::io_service& io_service)
+    : basic_io_object<ResolverService>(io_service)
+  {
+  }
+
+  /// Cancel any asynchronous operations that are waiting on the resolver.
+  /**
+   * This function forces the completion of any pending asynchronous
+   * operations on the host resolver. The handler for each cancelled operation
+   * will be invoked with the asio::error::operation_aborted error code.
+   */
+  void cancel()
+  {
+    return this->service.cancel(this->implementation);
+  }
+
+  /// Perform forward resolution of a query to a list of entries.
+  /**
+   * This function is used to resolve a query into a list of endpoint entries.
+   *
+   * @param q A query object that determines what endpoints will be returned.
+   *
+   * @returns A forward-only iterator that can be used to traverse the list
+   * of endpoint entries.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note A default constructed iterator represents the end of the list.
+   *
+   * A successful call to this function is guaranteed to return at least one
+   * entry.
+   */
+  iterator resolve(const query& q)
+  {
+    asio::error_code ec;
+    iterator i = this->service.resolve(this->implementation, q, ec);
+    asio::detail::throw_error(ec, "resolve");
+    return i;
+  }
+
+  /// Perform forward resolution of a query to a list of entries.
+  /**
+   * This function is used to resolve a query into a list of endpoint entries.
+   *
+   * @param q A query object that determines what endpoints will be returned.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns A forward-only iterator that can be used to traverse the list
+   * of endpoint entries. Returns a default constructed iterator if an error
+   * occurs.
+   *
+   * @note A default constructed iterator represents the end of the list.
+   *
+   * A successful call to this function is guaranteed to return at least one
+   * entry.
+   */
+  iterator resolve(const query& q, asio::error_code& ec)
+  {
+    return this->service.resolve(this->implementation, q, ec);
+  }
+
+  /// Asynchronously perform forward resolution of a query to a list of entries.
+  /**
+   * This function is used to asynchronously resolve a query into a list of
+   * endpoint entries.
+   *
+   * @param q A query object that determines what endpoints will be returned.
+   *
+   * @param handler The handler to be called when the resolve operation
+   * completes. Copies will be made of the handler as required. The function
+   * signature of the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error, // Result of operation.
+   *   resolver::iterator iterator             // Forward-only iterator that can
+   *                                           // be used to traverse the list
+   *                                           // of endpoint entries.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @note A default constructed iterator represents the end of the list.
+   *
+   * A successful resolve operation is guaranteed to pass at least one entry to
+   * the handler.
+   */
+  template <typename ResolveHandler>
+  ASIO_INITFN_RESULT_TYPE(ResolveHandler,
+      void (asio::error_code, iterator))
+  async_resolve(const query& q,
+      ASIO_MOVE_ARG(ResolveHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a ResolveHandler.
+    ASIO_RESOLVE_HANDLER_CHECK(
+        ResolveHandler, handler, iterator) type_check;
+
+    return this->service.async_resolve(this->implementation, q,
+        ASIO_MOVE_CAST(ResolveHandler)(handler));
+  }
+
+  /// Perform reverse resolution of an endpoint to a list of entries.
+  /**
+   * This function is used to resolve an endpoint into a list of endpoint
+   * entries.
+   *
+   * @param e An endpoint object that determines what endpoints will be
+   * returned.
+   *
+   * @returns A forward-only iterator that can be used to traverse the list
+   * of endpoint entries.
+   *
+   * @throws asio::system_error Thrown on failure.
+   *
+   * @note A default constructed iterator represents the end of the list.
+   *
+   * A successful call to this function is guaranteed to return at least one
+   * entry.
+   */
+  iterator resolve(const endpoint_type& e)
+  {
+    asio::error_code ec;
+    iterator i = this->service.resolve(this->implementation, e, ec);
+    asio::detail::throw_error(ec, "resolve");
+    return i;
+  }
+
+  /// Perform reverse resolution of an endpoint to a list of entries.
+  /**
+   * This function is used to resolve an endpoint into a list of endpoint
+   * entries.
+   *
+   * @param e An endpoint object that determines what endpoints will be
+   * returned.
+   *
+   * @param ec Set to indicate what error occurred, if any.
+   *
+   * @returns A forward-only iterator that can be used to traverse the list
+   * of endpoint entries. Returns a default constructed iterator if an error
+   * occurs.
+   *
+   * @note A default constructed iterator represents the end of the list.
+   *
+   * A successful call to this function is guaranteed to return at least one
+   * entry.
+   */
+  iterator resolve(const endpoint_type& e, asio::error_code& ec)
+  {
+    return this->service.resolve(this->implementation, e, ec);
+  }
+
+  /// Asynchronously perform reverse resolution of an endpoint to a list of
+  /// entries.
+  /**
+   * This function is used to asynchronously resolve an endpoint into a list of
+   * endpoint entries.
+   *
+   * @param e An endpoint object that determines what endpoints will be
+   * returned.
+   *
+   * @param handler The handler to be called when the resolve operation
+   * completes. Copies will be made of the handler as required. The function
+   * signature of the handler must be:
+   * @code void handler(
+   *   const asio::error_code& error, // Result of operation.
+   *   resolver::iterator iterator             // Forward-only iterator that can
+   *                                           // be used to traverse the list
+   *                                           // of endpoint entries.
+   * ); @endcode
+   * Regardless of whether the asynchronous operation completes immediately or
+   * not, the handler will not be invoked from within this function. Invocation
+   * of the handler will be performed in a manner equivalent to using
+   * asio::io_service::post().
+   *
+   * @note A default constructed iterator represents the end of the list.
+   *
+   * A successful resolve operation is guaranteed to pass at least one entry to
+   * the handler.
+   */
+  template <typename ResolveHandler>
+  ASIO_INITFN_RESULT_TYPE(ResolveHandler,
+      void (asio::error_code, iterator))
+  async_resolve(const endpoint_type& e,
+      ASIO_MOVE_ARG(ResolveHandler) handler)
+  {
+    // If you get an error on the following line it means that your handler does
+    // not meet the documented type requirements for a ResolveHandler.
+    ASIO_RESOLVE_HANDLER_CHECK(
+        ResolveHandler, handler, iterator) type_check;
+
+    return this->service.async_resolve(this->implementation, e,
+        ASIO_MOVE_CAST(ResolveHandler)(handler));
+  }
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_BASIC_RESOLVER_HPP
diff --git a/asio-1.10.6/include/asio/ip/basic_resolver_entry.hpp b/asio-1.10.6/include/asio/ip/basic_resolver_entry.hpp
new file mode 100644
index 0000000..3d4a61f
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/basic_resolver_entry.hpp
@@ -0,0 +1,91 @@
+//
+// ip/basic_resolver_entry.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_BASIC_RESOLVER_ENTRY_HPP
+#define ASIO_IP_BASIC_RESOLVER_ENTRY_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <string>
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// An entry produced by a resolver.
+/**
+ * The asio::ip::basic_resolver_entry class template describes an entry
+ * as returned by a resolver.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+template <typename InternetProtocol>
+class basic_resolver_entry
+{
+public:
+  /// The protocol type associated with the endpoint entry.
+  typedef InternetProtocol protocol_type;
+
+  /// The endpoint type associated with the endpoint entry.
+  typedef typename InternetProtocol::endpoint endpoint_type;
+
+  /// Default constructor.
+  basic_resolver_entry()
+  {
+  }
+
+  /// Construct with specified endpoint, host name and service name.
+  basic_resolver_entry(const endpoint_type& ep,
+      const std::string& host, const std::string& service)
+    : endpoint_(ep),
+      host_name_(host),
+      service_name_(service)
+  {
+  }
+
+  /// Get the endpoint associated with the entry.
+  endpoint_type endpoint() const
+  {
+    return endpoint_;
+  }
+
+  /// Convert to the endpoint associated with the entry.
+  operator endpoint_type() const
+  {
+    return endpoint_;
+  }
+
+  /// Get the host name associated with the entry.
+  std::string host_name() const
+  {
+    return host_name_;
+  }
+
+  /// Get the service name associated with the entry.
+  std::string service_name() const
+  {
+    return service_name_;
+  }
+
+private:
+  endpoint_type endpoint_;
+  std::string host_name_;
+  std::string service_name_;
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_BASIC_RESOLVER_ENTRY_HPP
diff --git a/asio-1.10.6/include/asio/ip/basic_resolver_iterator.hpp b/asio-1.10.6/include/asio/ip/basic_resolver_iterator.hpp
new file mode 100644
index 0000000..8e468ff
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/basic_resolver_iterator.hpp
@@ -0,0 +1,214 @@
+//
+// ip/basic_resolver_iterator.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_BASIC_RESOLVER_ITERATOR_HPP
+#define ASIO_IP_BASIC_RESOLVER_ITERATOR_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include <cstring>
+#include <iterator>
+#include <string>
+#include <vector>
+#include "asio/detail/shared_ptr.hpp"
+#include "asio/detail/socket_ops.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/ip/basic_resolver_entry.hpp"
+
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// An iterator over the entries produced by a resolver.
+/**
+ * The asio::ip::basic_resolver_iterator class template is used to define
+ * iterators over the results returned by a resolver.
+ *
+ * The iterator's value_type, obtained when the iterator is dereferenced, is:
+ * @code const basic_resolver_entry<InternetProtocol> @endcode
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+template <typename InternetProtocol>
+class basic_resolver_iterator
+{
+public:
+  /// The type used for the distance between two iterators.
+  typedef std::ptrdiff_t difference_type;
+
+  /// The type of the value pointed to by the iterator.
+  typedef basic_resolver_entry<InternetProtocol> value_type;
+
+  /// The type of the result of applying operator->() to the iterator.
+  typedef const basic_resolver_entry<InternetProtocol>* pointer;
+
+  /// The type of the result of applying operator*() to the iterator.
+  typedef const basic_resolver_entry<InternetProtocol>& reference;
+
+  /// The iterator category.
+  typedef std::forward_iterator_tag iterator_category;
+
+  /// Default constructor creates an end iterator.
+  basic_resolver_iterator()
+    : index_(0)
+  {
+  }
+
+  /// Create an iterator from an addrinfo list returned by getaddrinfo.
+  static basic_resolver_iterator create(
+      asio::detail::addrinfo_type* address_info,
+      const std::string& host_name, const std::string& service_name)
+  {
+    basic_resolver_iterator iter;
+    if (!address_info)
+      return iter;
+
+    std::string actual_host_name = host_name;
+    if (address_info->ai_canonname)
+      actual_host_name = address_info->ai_canonname;
+
+    iter.values_.reset(new values_type);
+
+    while (address_info)
+    {
+      if (address_info->ai_family == ASIO_OS_DEF(AF_INET)
+          || address_info->ai_family == ASIO_OS_DEF(AF_INET6))
+      {
+        using namespace std; // For memcpy.
+        typename InternetProtocol::endpoint endpoint;
+        endpoint.resize(static_cast<std::size_t>(address_info->ai_addrlen));
+        memcpy(endpoint.data(), address_info->ai_addr,
+            address_info->ai_addrlen);
+        iter.values_->push_back(
+            basic_resolver_entry<InternetProtocol>(endpoint,
+              actual_host_name, service_name));
+      }
+      address_info = address_info->ai_next;
+    }
+
+    return iter;
+  }
+
+  /// Create an iterator from an endpoint, host name and service name.
+  static basic_resolver_iterator create(
+      const typename InternetProtocol::endpoint& endpoint,
+      const std::string& host_name, const std::string& service_name)
+  {
+    basic_resolver_iterator iter;
+    iter.values_.reset(new values_type);
+    iter.values_->push_back(
+        basic_resolver_entry<InternetProtocol>(
+          endpoint, host_name, service_name));
+    return iter;
+  }
+
+  /// Create an iterator from a sequence of endpoints, host and service name.
+  template <typename EndpointIterator>
+  static basic_resolver_iterator create(
+      EndpointIterator begin, EndpointIterator end,
+      const std::string& host_name, const std::string& service_name)
+  {
+    basic_resolver_iterator iter;
+    if (begin != end)
+    {
+      iter.values_.reset(new values_type);
+      for (EndpointIterator ep_iter = begin; ep_iter != end; ++ep_iter)
+      {
+        iter.values_->push_back(
+            basic_resolver_entry<InternetProtocol>(
+              *ep_iter, host_name, service_name));
+      }
+    }
+    return iter;
+  }
+
+
+  /// Dereference an iterator.
+  const basic_resolver_entry<InternetProtocol>& operator*() const
+  {
+    return dereference();
+  }
+
+  /// Dereference an iterator.
+  const basic_resolver_entry<InternetProtocol>* operator->() const
+  {
+    return &dereference();
+  }
+
+  /// Increment operator (prefix).
+  basic_resolver_iterator& operator++()
+  {
+    increment();
+    return *this;
+  }
+
+  /// Increment operator (postfix).
+  basic_resolver_iterator operator++(int)
+  {
+    basic_resolver_iterator tmp(*this);
+    ++*this;
+    return tmp;
+  }
+
+  /// Test two iterators for equality.
+  friend bool operator==(const basic_resolver_iterator& a,
+      const basic_resolver_iterator& b)
+  {
+    return a.equal(b);
+  }
+
+  /// Test two iterators for inequality.
+  friend bool operator!=(const basic_resolver_iterator& a,
+      const basic_resolver_iterator& b)
+  {
+    return !a.equal(b);
+  }
+
+private:
+  void increment()
+  {
+    if (++index_ == values_->size())
+    {
+      // Reset state to match a default constructed end iterator.
+      values_.reset();
+      index_ = 0;
+    }
+  }
+
+  bool equal(const basic_resolver_iterator& other) const
+  {
+    if (!values_ && !other.values_)
+      return true;
+    if (values_ != other.values_)
+      return false;
+    return index_ == other.index_;
+  }
+
+  const basic_resolver_entry<InternetProtocol>& dereference() const
+  {
+    return (*values_)[index_];
+  }
+
+  typedef std::vector<basic_resolver_entry<InternetProtocol> > values_type;
+  asio::detail::shared_ptr<values_type> values_;
+  std::size_t index_;
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_BASIC_RESOLVER_ITERATOR_HPP
diff --git a/asio-1.10.6/include/asio/ip/basic_resolver_query.hpp b/asio-1.10.6/include/asio/ip/basic_resolver_query.hpp
new file mode 100644
index 0000000..86c33cc
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/basic_resolver_query.hpp
@@ -0,0 +1,241 @@
+//
+// ip/basic_resolver_query.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_BASIC_RESOLVER_QUERY_HPP
+#define ASIO_IP_BASIC_RESOLVER_QUERY_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <string>
+#include "asio/detail/socket_ops.hpp"
+#include "asio/ip/resolver_query_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// An query to be passed to a resolver.
+/**
+ * The asio::ip::basic_resolver_query class template describes a query
+ * that can be passed to a resolver.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ */
+template <typename InternetProtocol>
+class basic_resolver_query
+  : public resolver_query_base
+{
+public:
+  /// The protocol type associated with the endpoint query.
+  typedef InternetProtocol protocol_type;
+
+  /// Construct with specified service name for any protocol.
+  /**
+   * This constructor is typically used to perform name resolution for local
+   * service binding.
+   *
+   * @param service A string identifying the requested service. This may be a
+   * descriptive name or a numeric string corresponding to a port number.
+   *
+   * @param resolve_flags A set of flags that determine how name resolution
+   * should be performed. The default flags are suitable for local service
+   * binding.
+   *
+   * @note On POSIX systems, service names are typically defined in the file
+   * <tt>/etc/services</tt>. On Windows, service names may be found in the file
+   * <tt>c:\\windows\\system32\\drivers\\etc\\services</tt>. Operating systems
+   * may use additional locations when resolving service names.
+   */
+  basic_resolver_query(const std::string& service,
+      resolver_query_base::flags resolve_flags = passive | address_configured)
+    : hints_(),
+      host_name_(),
+      service_name_(service)
+  {
+    typename InternetProtocol::endpoint endpoint;
+    hints_.ai_flags = static_cast<int>(resolve_flags);
+    hints_.ai_family = PF_UNSPEC;
+    hints_.ai_socktype = endpoint.protocol().type();
+    hints_.ai_protocol = endpoint.protocol().protocol();
+    hints_.ai_addrlen = 0;
+    hints_.ai_canonname = 0;
+    hints_.ai_addr = 0;
+    hints_.ai_next = 0;
+  }
+
+  /// Construct with specified service name for a given protocol.
+  /**
+   * This constructor is typically used to perform name resolution for local
+   * service binding with a specific protocol version.
+   *
+   * @param protocol A protocol object, normally representing either the IPv4 or
+   * IPv6 version of an internet protocol.
+   *
+   * @param service A string identifying the requested service. This may be a
+   * descriptive name or a numeric string corresponding to a port number.
+   *
+   * @param resolve_flags A set of flags that determine how name resolution
+   * should be performed. The default flags are suitable for local service
+   * binding.
+   *
+   * @note On POSIX systems, service names are typically defined in the file
+   * <tt>/etc/services</tt>. On Windows, service names may be found in the file
+   * <tt>c:\\windows\\system32\\drivers\\etc\\services</tt>. Operating systems
+   * may use additional locations when resolving service names.
+   */
+  basic_resolver_query(const protocol_type& protocol,
+      const std::string& service,
+      resolver_query_base::flags resolve_flags = passive | address_configured)
+    : hints_(),
+      host_name_(),
+      service_name_(service)
+  {
+    hints_.ai_flags = static_cast<int>(resolve_flags);
+    hints_.ai_family = protocol.family();
+    hints_.ai_socktype = protocol.type();
+    hints_.ai_protocol = protocol.protocol();
+    hints_.ai_addrlen = 0;
+    hints_.ai_canonname = 0;
+    hints_.ai_addr = 0;
+    hints_.ai_next = 0;
+  }
+
+  /// Construct with specified host name and service name for any protocol.
+  /**
+   * This constructor is typically used to perform name resolution for
+   * communication with remote hosts.
+   *
+   * @param host A string identifying a location. May be a descriptive name or
+   * a numeric address string. If an empty string and the passive flag has been
+   * specified, the resolved endpoints are suitable for local service binding.
+   * If an empty string and passive is not specified, the resolved endpoints
+   * will use the loopback address.
+   *
+   * @param service A string identifying the requested service. This may be a
+   * descriptive name or a numeric string corresponding to a port number. May
+   * be an empty string, in which case all resolved endpoints will have a port
+   * number of 0.
+   *
+   * @param resolve_flags A set of flags that determine how name resolution
+   * should be performed. The default flags are suitable for communication with
+   * remote hosts.
+   *
+   * @note On POSIX systems, host names may be locally defined in the file
+   * <tt>/etc/hosts</tt>. On Windows, host names may be defined in the file
+   * <tt>c:\\windows\\system32\\drivers\\etc\\hosts</tt>. Remote host name
+   * resolution is performed using DNS. Operating systems may use additional
+   * locations when resolving host names (such as NETBIOS names on Windows).
+   *
+   * On POSIX systems, service names are typically defined in the file
+   * <tt>/etc/services</tt>. On Windows, service names may be found in the file
+   * <tt>c:\\windows\\system32\\drivers\\etc\\services</tt>. Operating systems
+   * may use additional locations when resolving service names.
+   */
+  basic_resolver_query(const std::string& host, const std::string& service,
+      resolver_query_base::flags resolve_flags = address_configured)
+    : hints_(),
+      host_name_(host),
+      service_name_(service)
+  {
+    typename InternetProtocol::endpoint endpoint;
+    hints_.ai_flags = static_cast<int>(resolve_flags);
+    hints_.ai_family = ASIO_OS_DEF(AF_UNSPEC);
+    hints_.ai_socktype = endpoint.protocol().type();
+    hints_.ai_protocol = endpoint.protocol().protocol();
+    hints_.ai_addrlen = 0;
+    hints_.ai_canonname = 0;
+    hints_.ai_addr = 0;
+    hints_.ai_next = 0;
+  }
+
+  /// Construct with specified host name and service name for a given protocol.
+  /**
+   * This constructor is typically used to perform name resolution for
+   * communication with remote hosts.
+   *
+   * @param protocol A protocol object, normally representing either the IPv4 or
+   * IPv6 version of an internet protocol.
+   *
+   * @param host A string identifying a location. May be a descriptive name or
+   * a numeric address string. If an empty string and the passive flag has been
+   * specified, the resolved endpoints are suitable for local service binding.
+   * If an empty string and passive is not specified, the resolved endpoints
+   * will use the loopback address.
+   *
+   * @param service A string identifying the requested service. This may be a
+   * descriptive name or a numeric string corresponding to a port number. May
+   * be an empty string, in which case all resolved endpoints will have a port
+   * number of 0.
+   *
+   * @param resolve_flags A set of flags that determine how name resolution
+   * should be performed. The default flags are suitable for communication with
+   * remote hosts.
+   *
+   * @note On POSIX systems, host names may be locally defined in the file
+   * <tt>/etc/hosts</tt>. On Windows, host names may be defined in the file
+   * <tt>c:\\windows\\system32\\drivers\\etc\\hosts</tt>. Remote host name
+   * resolution is performed using DNS. Operating systems may use additional
+   * locations when resolving host names (such as NETBIOS names on Windows).
+   *
+   * On POSIX systems, service names are typically defined in the file
+   * <tt>/etc/services</tt>. On Windows, service names may be found in the file
+   * <tt>c:\\windows\\system32\\drivers\\etc\\services</tt>. Operating systems
+   * may use additional locations when resolving service names.
+   */
+  basic_resolver_query(const protocol_type& protocol,
+      const std::string& host, const std::string& service,
+      resolver_query_base::flags resolve_flags = address_configured)
+    : hints_(),
+      host_name_(host),
+      service_name_(service)
+  {
+    hints_.ai_flags = static_cast<int>(resolve_flags);
+    hints_.ai_family = protocol.family();
+    hints_.ai_socktype = protocol.type();
+    hints_.ai_protocol = protocol.protocol();
+    hints_.ai_addrlen = 0;
+    hints_.ai_canonname = 0;
+    hints_.ai_addr = 0;
+    hints_.ai_next = 0;
+  }
+
+  /// Get the hints associated with the query.
+  const asio::detail::addrinfo_type& hints() const
+  {
+    return hints_;
+  }
+
+  /// Get the host name associated with the query.
+  std::string host_name() const
+  {
+    return host_name_;
+  }
+
+  /// Get the service name associated with the query.
+  std::string service_name() const
+  {
+    return service_name_;
+  }
+
+private:
+  asio::detail::addrinfo_type hints_;
+  std::string host_name_;
+  std::string service_name_;
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_BASIC_RESOLVER_QUERY_HPP
diff --git a/asio-1.10.6/include/asio/ip/detail/endpoint.hpp b/asio-1.10.6/include/asio/ip/detail/endpoint.hpp
new file mode 100644
index 0000000..cbf188c
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/detail/endpoint.hpp
@@ -0,0 +1,130 @@
+//
+// ip/detail/endpoint.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_DETAIL_ENDPOINT_HPP
+#define ASIO_IP_DETAIL_ENDPOINT_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <string>
+#include "asio/detail/socket_types.hpp"
+#include "asio/detail/winsock_init.hpp"
+#include "asio/error_code.hpp"
+#include "asio/ip/address.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+namespace detail {
+
+// Helper class for implementating an IP endpoint.
+class endpoint
+{
+public:
+  // Default constructor.
+  ASIO_DECL endpoint();
+
+  // Construct an endpoint using a family and port number.
+  ASIO_DECL endpoint(int family, unsigned short port_num);
+
+  // Construct an endpoint using an address and port number.
+  ASIO_DECL endpoint(const asio::ip::address& addr,
+      unsigned short port_num);
+
+  // Copy constructor.
+  endpoint(const endpoint& other)
+    : data_(other.data_)
+  {
+  }
+
+  // Assign from another endpoint.
+  endpoint& operator=(const endpoint& other)
+  {
+    data_ = other.data_;
+    return *this;
+  }
+
+  // Get the underlying endpoint in the native type.
+  asio::detail::socket_addr_type* data()
+  {
+    return &data_.base;
+  }
+
+  // Get the underlying endpoint in the native type.
+  const asio::detail::socket_addr_type* data() const
+  {
+    return &data_.base;
+  }
+
+  // Get the underlying size of the endpoint in the native type.
+  std::size_t size() const
+  {
+    if (is_v4())
+      return sizeof(asio::detail::sockaddr_in4_type);
+    else
+      return sizeof(asio::detail::sockaddr_in6_type);
+  }
+
+  // Set the underlying size of the endpoint in the native type.
+  ASIO_DECL void resize(std::size_t new_size);
+
+  // Get the capacity of the endpoint in the native type.
+  std::size_t capacity() const
+  {
+    return sizeof(data_);
+  }
+
+  // Get the port associated with the endpoint.
+  ASIO_DECL unsigned short port() const;
+
+  // Set the port associated with the endpoint.
+  ASIO_DECL void port(unsigned short port_num);
+
+  // Get the IP address associated with the endpoint.
+  ASIO_DECL asio::ip::address address() const;
+
+  // Set the IP address associated with the endpoint.
+  ASIO_DECL void address(const asio::ip::address& addr);
+
+  // Compare two endpoints for equality.
+  ASIO_DECL friend bool operator==(
+      const endpoint& e1, const endpoint& e2);
+
+  // Compare endpoints for ordering.
+  ASIO_DECL friend bool operator<(
+      const endpoint& e1, const endpoint& e2);
+
+  // Determine whether the endpoint is IPv4.
+  bool is_v4() const
+  {
+    return data_.base.sa_family == ASIO_OS_DEF(AF_INET);
+  }
+
+
+private:
+  // The underlying IP socket address.
+  union data_union
+  {
+    asio::detail::socket_addr_type base;
+    asio::detail::sockaddr_in4_type v4;
+    asio::detail::sockaddr_in6_type v6;
+  } data_;
+};
+
+} // namespace detail
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+# include "asio/ip/detail/impl/endpoint.ipp"
+
+#endif // ASIO_IP_DETAIL_ENDPOINT_HPP
diff --git a/asio-1.10.6/include/asio/ip/detail/impl/endpoint.ipp b/asio-1.10.6/include/asio/ip/detail/impl/endpoint.ipp
new file mode 100644
index 0000000..2988d7e
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/detail/impl/endpoint.ipp
@@ -0,0 +1,176 @@
+//
+// ip/detail/impl/endpoint.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_DETAIL_IMPL_ENDPOINT_IPP
+#define ASIO_IP_DETAIL_IMPL_ENDPOINT_IPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstring>
+#include "asio/detail/socket_ops.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+#include "asio/ip/detail/endpoint.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+namespace detail {
+
+endpoint::endpoint()
+  : data_()
+{
+  data_.v4.sin_family = ASIO_OS_DEF(AF_INET);
+  data_.v4.sin_port = 0;
+  data_.v4.sin_addr.s_addr = ASIO_OS_DEF(INADDR_ANY);
+}
+
+endpoint::endpoint(int family, unsigned short port_num)
+  : data_()
+{
+  using namespace std; // For memcpy.
+  if (family == ASIO_OS_DEF(AF_INET))
+  {
+    data_.v4.sin_family = ASIO_OS_DEF(AF_INET);
+    data_.v4.sin_port =
+      asio::detail::socket_ops::host_to_network_short(port_num);
+    data_.v4.sin_addr.s_addr = ASIO_OS_DEF(INADDR_ANY);
+  }
+  else
+  {
+    data_.v6.sin6_family = ASIO_OS_DEF(AF_INET6);
+    data_.v6.sin6_port =
+      asio::detail::socket_ops::host_to_network_short(port_num);
+    data_.v6.sin6_flowinfo = 0;
+    data_.v6.sin6_addr.s6_addr[0] = 0; data_.v6.sin6_addr.s6_addr[1] = 0;
+    data_.v6.sin6_addr.s6_addr[2] = 0, data_.v6.sin6_addr.s6_addr[3] = 0;
+    data_.v6.sin6_addr.s6_addr[4] = 0, data_.v6.sin6_addr.s6_addr[5] = 0;
+    data_.v6.sin6_addr.s6_addr[6] = 0, data_.v6.sin6_addr.s6_addr[7] = 0;
+    data_.v6.sin6_addr.s6_addr[8] = 0, data_.v6.sin6_addr.s6_addr[9] = 0;
+    data_.v6.sin6_addr.s6_addr[10] = 0, data_.v6.sin6_addr.s6_addr[11] = 0;
+    data_.v6.sin6_addr.s6_addr[12] = 0, data_.v6.sin6_addr.s6_addr[13] = 0;
+    data_.v6.sin6_addr.s6_addr[14] = 0, data_.v6.sin6_addr.s6_addr[15] = 0;
+    data_.v6.sin6_scope_id = 0;
+  }
+}
+
+endpoint::endpoint(const asio::ip::address& addr,
+    unsigned short port_num)
+  : data_()
+{
+  using namespace std; // For memcpy.
+  if (addr.is_v4())
+  {
+    data_.v4.sin_family = ASIO_OS_DEF(AF_INET);
+    data_.v4.sin_port =
+      asio::detail::socket_ops::host_to_network_short(port_num);
+    data_.v4.sin_addr.s_addr =
+      asio::detail::socket_ops::host_to_network_long(
+          static_cast<asio::detail::u_long_type>(
+            addr.to_v4().to_ulong()));
+  }
+  else
+  {
+    data_.v6.sin6_family = ASIO_OS_DEF(AF_INET6);
+    data_.v6.sin6_port =
+      asio::detail::socket_ops::host_to_network_short(port_num);
+    data_.v6.sin6_flowinfo = 0;
+    asio::ip::address_v6 v6_addr = addr.to_v6();
+    asio::ip::address_v6::bytes_type bytes = v6_addr.to_bytes();
+    memcpy(data_.v6.sin6_addr.s6_addr, bytes.data(), 16);
+    data_.v6.sin6_scope_id =
+      static_cast<asio::detail::u_long_type>(
+        v6_addr.scope_id());
+  }
+}
+
+void endpoint::resize(std::size_t new_size)
+{
+  if (new_size > sizeof(asio::detail::sockaddr_storage_type))
+  {
+    asio::error_code ec(asio::error::invalid_argument);
+    asio::detail::throw_error(ec);
+  }
+}
+
+unsigned short endpoint::port() const
+{
+  if (is_v4())
+  {
+    return asio::detail::socket_ops::network_to_host_short(
+        data_.v4.sin_port);
+  }
+  else
+  {
+    return asio::detail::socket_ops::network_to_host_short(
+        data_.v6.sin6_port);
+  }
+}
+
+void endpoint::port(unsigned short port_num)
+{
+  if (is_v4())
+  {
+    data_.v4.sin_port
+      = asio::detail::socket_ops::host_to_network_short(port_num);
+  }
+  else
+  {
+    data_.v6.sin6_port
+      = asio::detail::socket_ops::host_to_network_short(port_num);
+  }
+}
+
+asio::ip::address endpoint::address() const
+{
+  using namespace std; // For memcpy.
+  if (is_v4())
+  {
+    return asio::ip::address_v4(
+        asio::detail::socket_ops::network_to_host_long(
+          data_.v4.sin_addr.s_addr));
+  }
+  else
+  {
+    asio::ip::address_v6::bytes_type bytes;
+    memcpy(bytes.data(), data_.v6.sin6_addr.s6_addr, 16);
+    return asio::ip::address_v6(bytes, data_.v6.sin6_scope_id);
+  }
+}
+
+void endpoint::address(const asio::ip::address& addr)
+{
+  endpoint tmp_endpoint(addr, port());
+  data_ = tmp_endpoint.data_;
+}
+
+bool operator==(const endpoint& e1, const endpoint& e2)
+{
+  return e1.address() == e2.address() && e1.port() == e2.port();
+}
+
+bool operator<(const endpoint& e1, const endpoint& e2)
+{
+  if (e1.address() < e2.address())
+    return true;
+  if (e1.address() != e2.address())
+    return false;
+  return e1.port() < e2.port();
+}
+
+
+} // namespace detail
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_DETAIL_IMPL_ENDPOINT_IPP
diff --git a/asio-1.10.6/include/asio/ip/impl/address.hpp b/asio-1.10.6/include/asio/ip/impl/address.hpp
new file mode 100644
index 0000000..d16c7be
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/impl/address.hpp
@@ -0,0 +1,16 @@
+//
+// ip/impl/address.hpp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_IMPL_ADDRESS_HPP
+#define ASIO_IP_IMPL_ADDRESS_HPP
+
+
+
+#endif // ASIO_IP_IMPL_ADDRESS_HPP
diff --git a/asio-1.10.6/include/asio/ip/impl/address.ipp b/asio-1.10.6/include/asio/ip/impl/address.ipp
new file mode 100644
index 0000000..b52ad3d
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/impl/address.ipp
@@ -0,0 +1,219 @@
+//
+// ip/impl/address.ipp
+// ~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_IMPL_ADDRESS_IPP
+#define ASIO_IP_IMPL_ADDRESS_IPP
+
+
+#include "asio/detail/config.hpp"
+#include <typeinfo>
+#include "asio/detail/throw_error.hpp"
+#include "asio/detail/throw_exception.hpp"
+#include "asio/error.hpp"
+#include "asio/ip/address.hpp"
+#include "asio/system_error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+address::address()
+  : type_(ipv4),
+    ipv4_address_(),
+    ipv6_address_()
+{
+}
+
+address::address(const asio::ip::address_v4& ipv4_address)
+  : type_(ipv4),
+    ipv4_address_(ipv4_address),
+    ipv6_address_()
+{
+}
+
+address::address(const asio::ip::address_v6& ipv6_address)
+  : type_(ipv6),
+    ipv4_address_(),
+    ipv6_address_(ipv6_address)
+{
+}
+
+address::address(const address& other)
+  : type_(other.type_),
+    ipv4_address_(other.ipv4_address_),
+    ipv6_address_(other.ipv6_address_)
+{
+}
+
+address::address(address&& other)
+  : type_(other.type_),
+    ipv4_address_(other.ipv4_address_),
+    ipv6_address_(other.ipv6_address_)
+{
+}
+
+address& address::operator=(const address& other)
+{
+  type_ = other.type_;
+  ipv4_address_ = other.ipv4_address_;
+  ipv6_address_ = other.ipv6_address_;
+  return *this;
+}
+
+address& address::operator=(address&& other)
+{
+  type_ = other.type_;
+  ipv4_address_ = other.ipv4_address_;
+  ipv6_address_ = other.ipv6_address_;
+  return *this;
+}
+
+address& address::operator=(const asio::ip::address_v4& ipv4_address)
+{
+  type_ = ipv4;
+  ipv4_address_ = ipv4_address;
+  ipv6_address_ = asio::ip::address_v6();
+  return *this;
+}
+
+address& address::operator=(const asio::ip::address_v6& ipv6_address)
+{
+  type_ = ipv6;
+  ipv4_address_ = asio::ip::address_v4();
+  ipv6_address_ = ipv6_address;
+  return *this;
+}
+
+asio::ip::address_v4 address::to_v4() const
+{
+  if (type_ != ipv4)
+  {
+    std::bad_cast ex;
+    asio::detail::throw_exception(ex);
+  }
+  return ipv4_address_;
+}
+
+asio::ip::address_v6 address::to_v6() const
+{
+  if (type_ != ipv6)
+  {
+    std::bad_cast ex;
+    asio::detail::throw_exception(ex);
+  }
+  return ipv6_address_;
+}
+
+std::string address::to_string() const
+{
+  if (type_ == ipv6)
+    return ipv6_address_.to_string();
+  return ipv4_address_.to_string();
+}
+
+std::string address::to_string(asio::error_code& ec) const
+{
+  if (type_ == ipv6)
+    return ipv6_address_.to_string(ec);
+  return ipv4_address_.to_string(ec);
+}
+
+address address::from_string(const char* str)
+{
+  asio::error_code ec;
+  address addr = from_string(str, ec);
+  asio::detail::throw_error(ec);
+  return addr;
+}
+
+address address::from_string(const char* str, asio::error_code& ec)
+{
+  asio::ip::address_v6 ipv6_address =
+    asio::ip::address_v6::from_string(str, ec);
+  if (!ec)
+  {
+    address tmp;
+    tmp.type_ = ipv6;
+    tmp.ipv6_address_ = ipv6_address;
+    return tmp;
+  }
+
+  asio::ip::address_v4 ipv4_address =
+    asio::ip::address_v4::from_string(str, ec);
+  if (!ec)
+  {
+    address tmp;
+    tmp.type_ = ipv4;
+    tmp.ipv4_address_ = ipv4_address;
+    return tmp;
+  }
+
+  return address();
+}
+
+address address::from_string(const std::string& str)
+{
+  return from_string(str.c_str());
+}
+
+address address::from_string(const std::string& str,
+    asio::error_code& ec)
+{
+  return from_string(str.c_str(), ec);
+}
+
+bool address::is_loopback() const
+{
+  return (type_ == ipv4)
+    ? ipv4_address_.is_loopback()
+    : ipv6_address_.is_loopback();
+}
+
+bool address::is_unspecified() const
+{
+  return (type_ == ipv4)
+    ? ipv4_address_.is_unspecified()
+    : ipv6_address_.is_unspecified();
+}
+
+bool address::is_multicast() const
+{
+  return (type_ == ipv4)
+    ? ipv4_address_.is_multicast()
+    : ipv6_address_.is_multicast();
+}
+
+bool operator==(const address& a1, const address& a2)
+{
+  if (a1.type_ != a2.type_)
+    return false;
+  if (a1.type_ == address::ipv6)
+    return a1.ipv6_address_ == a2.ipv6_address_;
+  return a1.ipv4_address_ == a2.ipv4_address_;
+}
+
+bool operator<(const address& a1, const address& a2)
+{
+  if (a1.type_ < a2.type_)
+    return true;
+  if (a1.type_ > a2.type_)
+    return false;
+  if (a1.type_ == address::ipv6)
+    return a1.ipv6_address_ < a2.ipv6_address_;
+  return a1.ipv4_address_ < a2.ipv4_address_;
+}
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_IMPL_ADDRESS_IPP
diff --git a/asio-1.10.6/include/asio/ip/impl/address_v4.hpp b/asio-1.10.6/include/asio/ip/impl/address_v4.hpp
new file mode 100644
index 0000000..86e993a
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/impl/address_v4.hpp
@@ -0,0 +1,16 @@
+//
+// ip/impl/address_v4.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_IMPL_ADDRESS_V4_HPP
+#define ASIO_IP_IMPL_ADDRESS_V4_HPP
+
+
+
+#endif // ASIO_IP_IMPL_ADDRESS_V4_HPP
diff --git a/asio-1.10.6/include/asio/ip/impl/address_v4.ipp b/asio-1.10.6/include/asio/ip/impl/address_v4.ipp
new file mode 100644
index 0000000..1ff5944
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/impl/address_v4.ipp
@@ -0,0 +1,171 @@
+//
+// ip/impl/address_v4.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_IMPL_ADDRESS_V4_IPP
+#define ASIO_IP_IMPL_ADDRESS_V4_IPP
+
+
+#include "asio/detail/config.hpp"
+#include <climits>
+#include <stdexcept>
+#include "asio/error.hpp"
+#include "asio/detail/socket_ops.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/detail/throw_exception.hpp"
+#include "asio/ip/address_v4.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+address_v4::address_v4(const address_v4::bytes_type& bytes)
+{
+#if UCHAR_MAX > 0xFF
+  if (bytes[0] > 0xFF || bytes[1] > 0xFF
+      || bytes[2] > 0xFF || bytes[3] > 0xFF)
+  {
+    std::out_of_range ex("address_v4 from bytes_type");
+    asio::detail::throw_exception(ex);
+  }
+#endif // UCHAR_MAX > 0xFF
+
+  using namespace std; // For memcpy.
+  memcpy(&addr_.s_addr, bytes.data(), 4);
+}
+
+address_v4::address_v4(unsigned long addr)
+{
+#if ULONG_MAX > 0xFFFFFFFF
+  if (addr > 0xFFFFFFFF)
+  {
+    std::out_of_range ex("address_v4 from unsigned long");
+    asio::detail::throw_exception(ex);
+  }
+#endif // ULONG_MAX > 0xFFFFFFFF
+
+  addr_.s_addr = asio::detail::socket_ops::host_to_network_long(
+      static_cast<asio::detail::u_long_type>(addr));
+}
+
+address_v4::bytes_type address_v4::to_bytes() const
+{
+  using namespace std; // For memcpy.
+  bytes_type bytes;
+  memcpy(bytes.data(), &addr_.s_addr, 4);
+  return bytes;
+}
+
+unsigned long address_v4::to_ulong() const
+{
+  return asio::detail::socket_ops::network_to_host_long(addr_.s_addr);
+}
+
+std::string address_v4::to_string() const
+{
+  asio::error_code ec;
+  std::string addr = to_string(ec);
+  asio::detail::throw_error(ec);
+  return addr;
+}
+
+std::string address_v4::to_string(asio::error_code& ec) const
+{
+  char addr_str[asio::detail::max_addr_v4_str_len];
+  const char* addr =
+    asio::detail::socket_ops::inet_ntop(
+        ASIO_OS_DEF(AF_INET), &addr_, addr_str,
+        asio::detail::max_addr_v4_str_len, 0, ec);
+  if (addr == 0)
+    return std::string();
+  return addr;
+}
+
+address_v4 address_v4::from_string(const char* str)
+{
+  asio::error_code ec;
+  address_v4 addr = from_string(str, ec);
+  asio::detail::throw_error(ec);
+  return addr;
+}
+
+address_v4 address_v4::from_string(
+    const char* str, asio::error_code& ec)
+{
+  address_v4 tmp;
+  if (asio::detail::socket_ops::inet_pton(
+        ASIO_OS_DEF(AF_INET), str, &tmp.addr_, 0, ec) <= 0)
+    return address_v4();
+  return tmp;
+}
+
+address_v4 address_v4::from_string(const std::string& str)
+{
+  return from_string(str.c_str());
+}
+
+address_v4 address_v4::from_string(
+    const std::string& str, asio::error_code& ec)
+{
+  return from_string(str.c_str(), ec);
+}
+
+bool address_v4::is_loopback() const
+{
+  return (to_ulong() & 0xFF000000) == 0x7F000000;
+}
+
+bool address_v4::is_unspecified() const
+{
+  return to_ulong() == 0;
+}
+
+bool address_v4::is_class_a() const
+{
+  return (to_ulong() & 0x80000000) == 0;
+}
+
+bool address_v4::is_class_b() const
+{
+  return (to_ulong() & 0xC0000000) == 0x80000000;
+}
+
+bool address_v4::is_class_c() const
+{
+  return (to_ulong() & 0xE0000000) == 0xC0000000;
+}
+
+bool address_v4::is_multicast() const
+{
+  return (to_ulong() & 0xF0000000) == 0xE0000000;
+}
+
+address_v4 address_v4::broadcast(const address_v4& addr, const address_v4& mask)
+{
+  return address_v4(addr.to_ulong() | (mask.to_ulong() ^ 0xFFFFFFFF));
+}
+
+address_v4 address_v4::netmask(const address_v4& addr)
+{
+  if (addr.is_class_a())
+    return address_v4(0xFF000000);
+  if (addr.is_class_b())
+    return address_v4(0xFFFF0000);
+  if (addr.is_class_c())
+    return address_v4(0xFFFFFF00);
+  return address_v4(0xFFFFFFFF);
+}
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_IMPL_ADDRESS_V4_IPP
diff --git a/asio-1.10.6/include/asio/ip/impl/address_v6.hpp b/asio-1.10.6/include/asio/ip/impl/address_v6.hpp
new file mode 100644
index 0000000..9637a8f
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/impl/address_v6.hpp
@@ -0,0 +1,16 @@
+//
+// ip/impl/address_v6.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_IMPL_ADDRESS_V6_HPP
+#define ASIO_IP_IMPL_ADDRESS_V6_HPP
+
+
+
+#endif // ASIO_IP_IMPL_ADDRESS_V6_HPP
diff --git a/asio-1.10.6/include/asio/ip/impl/address_v6.ipp b/asio-1.10.6/include/asio/ip/impl/address_v6.ipp
new file mode 100644
index 0000000..339e4a7
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/impl/address_v6.ipp
@@ -0,0 +1,287 @@
+//
+// ip/impl/address_v6.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_IMPL_ADDRESS_V6_IPP
+#define ASIO_IP_IMPL_ADDRESS_V6_IPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstring>
+#include <stdexcept>
+#include <typeinfo>
+#include "asio/detail/socket_ops.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/detail/throw_exception.hpp"
+#include "asio/error.hpp"
+#include "asio/ip/address_v6.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+address_v6::address_v6()
+  : addr_(),
+    scope_id_(0)
+{
+}
+
+address_v6::address_v6(const address_v6::bytes_type& bytes,
+    unsigned long scope)
+  : scope_id_(scope)
+{
+#if UCHAR_MAX > 0xFF
+  for (std::size_t i = 0; i < bytes.size(); ++i)
+  {
+    if (bytes[i] > 0xFF)
+    {
+      std::out_of_range ex("address_v6 from bytes_type");
+      asio::detail::throw_exception(ex);
+    }
+  }
+#endif // UCHAR_MAX > 0xFF
+
+  using namespace std; // For memcpy.
+  memcpy(addr_.s6_addr, bytes.data(), 16);
+}
+
+address_v6::address_v6(const address_v6& other)
+  : addr_(other.addr_),
+    scope_id_(other.scope_id_)
+{
+}
+
+address_v6::address_v6(address_v6&& other)
+  : addr_(other.addr_),
+    scope_id_(other.scope_id_)
+{
+}
+
+address_v6& address_v6::operator=(const address_v6& other)
+{
+  addr_ = other.addr_;
+  scope_id_ = other.scope_id_;
+  return *this;
+}
+
+address_v6& address_v6::operator=(address_v6&& other)
+{
+  addr_ = other.addr_;
+  scope_id_ = other.scope_id_;
+  return *this;
+}
+
+address_v6::bytes_type address_v6::to_bytes() const
+{
+  using namespace std; // For memcpy.
+  bytes_type bytes;
+  memcpy(bytes.data(), addr_.s6_addr, 16);
+  return bytes;
+}
+
+std::string address_v6::to_string() const
+{
+  asio::error_code ec;
+  std::string addr = to_string(ec);
+  asio::detail::throw_error(ec);
+  return addr;
+}
+
+std::string address_v6::to_string(asio::error_code& ec) const
+{
+  char addr_str[asio::detail::max_addr_v6_str_len];
+  const char* addr =
+    asio::detail::socket_ops::inet_ntop(
+        ASIO_OS_DEF(AF_INET6), &addr_, addr_str,
+        asio::detail::max_addr_v6_str_len, scope_id_, ec);
+  if (addr == 0)
+    return std::string();
+  return addr;
+}
+
+address_v6 address_v6::from_string(const char* str)
+{
+  asio::error_code ec;
+  address_v6 addr = from_string(str, ec);
+  asio::detail::throw_error(ec);
+  return addr;
+}
+
+address_v6 address_v6::from_string(
+    const char* str, asio::error_code& ec)
+{
+  address_v6 tmp;
+  if (asio::detail::socket_ops::inet_pton(
+        ASIO_OS_DEF(AF_INET6), str, &tmp.addr_, &tmp.scope_id_, ec) <= 0)
+    return address_v6();
+  return tmp;
+}
+
+address_v6 address_v6::from_string(const std::string& str)
+{
+  return from_string(str.c_str());
+}
+
+address_v6 address_v6::from_string(
+    const std::string& str, asio::error_code& ec)
+{
+  return from_string(str.c_str(), ec);
+}
+
+address_v4 address_v6::to_v4() const
+{
+  if (!is_v4_mapped() && !is_v4_compatible())
+  {
+    std::bad_cast ex;
+    asio::detail::throw_exception(ex);
+  }
+
+  address_v4::bytes_type v4_bytes = { { addr_.s6_addr[12],
+    addr_.s6_addr[13], addr_.s6_addr[14], addr_.s6_addr[15] } };
+  return address_v4(v4_bytes);
+}
+
+bool address_v6::is_loopback() const
+{
+  return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0)
+      && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0)
+      && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0)
+      && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0)
+      && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0)
+      && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0)
+      && (addr_.s6_addr[12] == 0) && (addr_.s6_addr[13] == 0)
+      && (addr_.s6_addr[14] == 0) && (addr_.s6_addr[15] == 1));
+}
+
+bool address_v6::is_unspecified() const
+{
+  return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0)
+      && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0)
+      && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0)
+      && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0)
+      && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0)
+      && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0)
+      && (addr_.s6_addr[12] == 0) && (addr_.s6_addr[13] == 0)
+      && (addr_.s6_addr[14] == 0) && (addr_.s6_addr[15] == 0));
+}
+
+bool address_v6::is_link_local() const
+{
+  return ((addr_.s6_addr[0] == 0xfe) && ((addr_.s6_addr[1] & 0xc0) == 0x80));
+}
+
+bool address_v6::is_site_local() const
+{
+  return ((addr_.s6_addr[0] == 0xfe) && ((addr_.s6_addr[1] & 0xc0) == 0xc0));
+}
+
+bool address_v6::is_v4_mapped() const
+{
+  return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0)
+      && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0)
+      && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0)
+      && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0)
+      && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0)
+      && (addr_.s6_addr[10] == 0xff) && (addr_.s6_addr[11] == 0xff));
+}
+
+bool address_v6::is_v4_compatible() const
+{
+  return ((addr_.s6_addr[0] == 0) && (addr_.s6_addr[1] == 0)
+      && (addr_.s6_addr[2] == 0) && (addr_.s6_addr[3] == 0)
+      && (addr_.s6_addr[4] == 0) && (addr_.s6_addr[5] == 0)
+      && (addr_.s6_addr[6] == 0) && (addr_.s6_addr[7] == 0)
+      && (addr_.s6_addr[8] == 0) && (addr_.s6_addr[9] == 0)
+      && (addr_.s6_addr[10] == 0) && (addr_.s6_addr[11] == 0)
+      && !((addr_.s6_addr[12] == 0)
+        && (addr_.s6_addr[13] == 0)
+        && (addr_.s6_addr[14] == 0)
+        && ((addr_.s6_addr[15] == 0) || (addr_.s6_addr[15] == 1))));
+}
+
+bool address_v6::is_multicast() const
+{
+  return (addr_.s6_addr[0] == 0xff);
+}
+
+bool address_v6::is_multicast_global() const
+{
+  return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x0e));
+}
+
+bool address_v6::is_multicast_link_local() const
+{
+  return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x02));
+}
+
+bool address_v6::is_multicast_node_local() const
+{
+  return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x01));
+}
+
+bool address_v6::is_multicast_org_local() const
+{
+  return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x08));
+}
+
+bool address_v6::is_multicast_site_local() const
+{
+  return ((addr_.s6_addr[0] == 0xff) && ((addr_.s6_addr[1] & 0x0f) == 0x05));
+}
+
+bool operator==(const address_v6& a1, const address_v6& a2)
+{
+  using namespace std; // For memcmp.
+  return memcmp(&a1.addr_, &a2.addr_,
+      sizeof(asio::detail::in6_addr_type)) == 0
+    && a1.scope_id_ == a2.scope_id_;
+}
+
+bool operator<(const address_v6& a1, const address_v6& a2)
+{
+  using namespace std; // For memcmp.
+  int memcmp_result = memcmp(&a1.addr_, &a2.addr_,
+      sizeof(asio::detail::in6_addr_type));
+  if (memcmp_result < 0)
+    return true;
+  if (memcmp_result > 0)
+    return false;
+  return a1.scope_id_ < a2.scope_id_;
+}
+
+address_v6 address_v6::loopback()
+{
+  address_v6 tmp;
+  tmp.addr_.s6_addr[15] = 1;
+  return tmp;
+}
+
+address_v6 address_v6::v4_mapped(const address_v4& addr)
+{
+  address_v4::bytes_type v4_bytes = addr.to_bytes();
+  bytes_type v6_bytes = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF,
+    v4_bytes[0], v4_bytes[1], v4_bytes[2], v4_bytes[3] } };
+  return address_v6(v6_bytes);
+}
+
+address_v6 address_v6::v4_compatible(const address_v4& addr)
+{
+  address_v4::bytes_type v4_bytes = addr.to_bytes();
+  bytes_type v6_bytes = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    v4_bytes[0], v4_bytes[1], v4_bytes[2], v4_bytes[3] } };
+  return address_v6(v6_bytes);
+}
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_IMPL_ADDRESS_V6_IPP
diff --git a/asio-1.10.6/include/asio/ip/impl/basic_endpoint.hpp b/asio-1.10.6/include/asio/ip/impl/basic_endpoint.hpp
new file mode 100644
index 0000000..93d692a
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/impl/basic_endpoint.hpp
@@ -0,0 +1,16 @@
+//
+// ip/impl/basic_endpoint.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_IMPL_BASIC_ENDPOINT_HPP
+#define ASIO_IP_IMPL_BASIC_ENDPOINT_HPP
+
+
+
+#endif // ASIO_IP_IMPL_BASIC_ENDPOINT_HPP
diff --git a/asio-1.10.6/include/asio/ip/resolver_query_base.hpp b/asio-1.10.6/include/asio/ip/resolver_query_base.hpp
new file mode 100644
index 0000000..adbf66d
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/resolver_query_base.hpp
@@ -0,0 +1,95 @@
+//
+// ip/resolver_query_base.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_RESOLVER_QUERY_BASE_HPP
+#define ASIO_IP_RESOLVER_QUERY_BASE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// The resolver_query_base class is used as a base for the
+/// basic_resolver_query class templates to provide a common place to define
+/// the flag constants.
+class resolver_query_base
+{
+public:
+  enum flags
+  {
+    canonical_name = ASIO_OS_DEF(AI_CANONNAME),
+    passive = ASIO_OS_DEF(AI_PASSIVE),
+    numeric_host = ASIO_OS_DEF(AI_NUMERICHOST),
+    numeric_service = ASIO_OS_DEF(AI_NUMERICSERV),
+    v4_mapped = ASIO_OS_DEF(AI_V4MAPPED),
+    all_matching = ASIO_OS_DEF(AI_ALL),
+    address_configured = ASIO_OS_DEF(AI_ADDRCONFIG)
+  };
+
+  // Implement bitmask operations as shown in C++ Std [lib.bitmask.types].
+
+  friend flags operator&(flags x, flags y)
+  {
+    return static_cast<flags>(
+        static_cast<unsigned int>(x) & static_cast<unsigned int>(y));
+  }
+
+  friend flags operator|(flags x, flags y)
+  {
+    return static_cast<flags>(
+        static_cast<unsigned int>(x) | static_cast<unsigned int>(y));
+  }
+
+  friend flags operator^(flags x, flags y)
+  {
+    return static_cast<flags>(
+        static_cast<unsigned int>(x) ^ static_cast<unsigned int>(y));
+  }
+
+  friend flags operator~(flags x)
+  {
+    return static_cast<flags>(~static_cast<unsigned int>(x));
+  }
+
+  friend flags& operator&=(flags& x, flags y)
+  {
+    x = x & y;
+    return x;
+  }
+
+  friend flags& operator|=(flags& x, flags y)
+  {
+    x = x | y;
+    return x;
+  }
+
+  friend flags& operator^=(flags& x, flags y)
+  {
+    x = x ^ y;
+    return x;
+  }
+
+protected:
+  /// Protected destructor to prevent deletion through this type.
+  ~resolver_query_base()
+  {
+  }
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_RESOLVER_QUERY_BASE_HPP
diff --git a/asio-1.10.6/include/asio/ip/resolver_service.hpp b/asio-1.10.6/include/asio/ip/resolver_service.hpp
new file mode 100644
index 0000000..99ac3f3
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/resolver_service.hpp
@@ -0,0 +1,152 @@
+//
+// ip/resolver_service.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_RESOLVER_SERVICE_HPP
+#define ASIO_IP_RESOLVER_SERVICE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/async_result.hpp"
+#include "asio/error_code.hpp"
+#include "asio/io_service.hpp"
+#include "asio/ip/basic_resolver_iterator.hpp"
+#include "asio/ip/basic_resolver_query.hpp"
+
+# include "asio/detail/resolver_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// Default service implementation for a resolver.
+template <typename InternetProtocol>
+class resolver_service
+  : public asio::detail::service_base<
+      resolver_service<InternetProtocol> >
+{
+public:
+
+  /// The protocol type.
+  typedef InternetProtocol protocol_type;
+
+  /// The endpoint type.
+  typedef typename InternetProtocol::endpoint endpoint_type;
+
+  /// The query type.
+  typedef basic_resolver_query<InternetProtocol> query_type;
+
+  /// The iterator type.
+  typedef basic_resolver_iterator<InternetProtocol> iterator_type;
+
+private:
+  // The type of the platform-specific implementation.
+  typedef asio::detail::resolver_service<InternetProtocol>
+    service_impl_type;
+
+public:
+  /// The type of a resolver implementation.
+  typedef typename service_impl_type::implementation_type implementation_type;
+
+  /// Construct a new resolver service for the specified io_service.
+  explicit resolver_service(asio::io_service& io_service)
+    : asio::detail::service_base<
+        resolver_service<InternetProtocol> >(io_service),
+      service_impl_(io_service)
+  {
+  }
+
+  /// Construct a new resolver implementation.
+  void construct(implementation_type& impl)
+  {
+    service_impl_.construct(impl);
+  }
+
+  /// Destroy a resolver implementation.
+  void destroy(implementation_type& impl)
+  {
+    service_impl_.destroy(impl);
+  }
+
+  /// Cancel pending asynchronous operations.
+  void cancel(implementation_type& impl)
+  {
+    service_impl_.cancel(impl);
+  }
+
+  /// Resolve a query to a list of entries.
+  iterator_type resolve(implementation_type& impl, const query_type& query,
+      asio::error_code& ec)
+  {
+    return service_impl_.resolve(impl, query, ec);
+  }
+
+  /// Asynchronously resolve a query to a list of entries.
+  template <typename ResolveHandler>
+  ASIO_INITFN_RESULT_TYPE(ResolveHandler,
+      void (asio::error_code, iterator_type))
+  async_resolve(implementation_type& impl, const query_type& query,
+      ASIO_MOVE_ARG(ResolveHandler) handler)
+  {
+    asio::detail::async_result_init<
+      ResolveHandler, void (asio::error_code, iterator_type)> init(
+        ASIO_MOVE_CAST(ResolveHandler)(handler));
+
+    service_impl_.async_resolve(impl, query, init.handler);
+
+    return init.result.get();
+  }
+
+  /// Resolve an endpoint to a list of entries.
+  iterator_type resolve(implementation_type& impl,
+      const endpoint_type& endpoint, asio::error_code& ec)
+  {
+    return service_impl_.resolve(impl, endpoint, ec);
+  }
+
+  /// Asynchronously resolve an endpoint to a list of entries.
+  template <typename ResolveHandler>
+  ASIO_INITFN_RESULT_TYPE(ResolveHandler,
+      void (asio::error_code, iterator_type))
+  async_resolve(implementation_type& impl, const endpoint_type& endpoint,
+      ASIO_MOVE_ARG(ResolveHandler) handler)
+  {
+    asio::detail::async_result_init<
+      ResolveHandler, void (asio::error_code, iterator_type)> init(
+        ASIO_MOVE_CAST(ResolveHandler)(handler));
+
+    service_impl_.async_resolve(impl, endpoint, init.handler);
+
+    return init.result.get();
+  }
+
+private:
+  // Destroy all user-defined handler objects owned by the service.
+  void shutdown_service()
+  {
+    service_impl_.shutdown_service();
+  }
+
+  // Perform any fork-related housekeeping.
+  void fork_service(asio::io_service::fork_event event)
+  {
+    service_impl_.fork_service(event);
+  }
+
+  // The platform-specific implementation.
+  service_impl_type service_impl_;
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_RESOLVER_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/ip/tcp.hpp b/asio-1.10.6/include/asio/ip/tcp.hpp
new file mode 100644
index 0000000..0d60f7d
--- /dev/null
+++ b/asio-1.10.6/include/asio/ip/tcp.hpp
@@ -0,0 +1,144 @@
+//
+// ip/tcp.hpp
+// ~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_IP_TCP_HPP
+#define ASIO_IP_TCP_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/basic_socket_acceptor.hpp"
+#include "asio/basic_socket_iostream.hpp"
+#include "asio/basic_stream_socket.hpp"
+#include "asio/detail/socket_option.hpp"
+#include "asio/detail/socket_types.hpp"
+#include "asio/ip/basic_endpoint.hpp"
+#include "asio/ip/basic_resolver.hpp"
+#include "asio/ip/basic_resolver_iterator.hpp"
+#include "asio/ip/basic_resolver_query.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace ip {
+
+/// Encapsulates the flags needed for TCP.
+/**
+ * The asio::ip::tcp class contains flags necessary for TCP sockets.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Safe.
+ *
+ * @par Concepts:
+ * Protocol, InternetProtocol.
+ */
+class tcp
+{
+public:
+  /// The type of a TCP endpoint.
+  typedef basic_endpoint<tcp> endpoint;
+
+  /// Construct to represent the IPv4 TCP protocol.
+  static tcp v4()
+  {
+    return tcp(ASIO_OS_DEF(AF_INET));
+  }
+
+  /// Construct to represent the IPv6 TCP protocol.
+  static tcp v6()
+  {
+    return tcp(ASIO_OS_DEF(AF_INET6));
+  }
+
+  /// Obtain an identifier for the type of the protocol.
+  int type() const
+  {
+    return ASIO_OS_DEF(SOCK_STREAM);
+  }
+
+  /// Obtain an identifier for the protocol.
+  int protocol() const
+  {
+    return ASIO_OS_DEF(IPPROTO_TCP);
+  }
+
+  /// Obtain an identifier for the protocol family.
+  int family() const
+  {
+    return family_;
+  }
+
+  /// The TCP socket type.
+  typedef basic_stream_socket<tcp> socket;
+
+  /// The TCP acceptor type.
+  typedef basic_socket_acceptor<tcp> acceptor;
+
+  /// The TCP resolver type.
+  typedef basic_resolver<tcp> resolver;
+
+
+  /// Socket option for disabling the Nagle algorithm.
+  /**
+   * Implements the IPPROTO_TCP/TCP_NODELAY socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::ip::tcp::no_delay option(true);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::ip::tcp::no_delay option;
+   * socket.get_option(option);
+   * bool is_set = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Boolean_Socket_Option.
+   */
+  typedef asio::detail::socket_option::boolean<
+    ASIO_OS_DEF(IPPROTO_TCP), ASIO_OS_DEF(TCP_NODELAY)> no_delay;
+
+  /// Compare two protocols for equality.
+  friend bool operator==(const tcp& p1, const tcp& p2)
+  {
+    return p1.family_ == p2.family_;
+  }
+
+  /// Compare two protocols for inequality.
+  friend bool operator!=(const tcp& p1, const tcp& p2)
+  {
+    return p1.family_ != p2.family_;
+  }
+
+private:
+  // Construct with a specific family.
+  explicit tcp(int protocol_family)
+    : family_(protocol_family)
+  {
+  }
+
+  int family_;
+};
+
+} // namespace ip
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IP_TCP_HPP
diff --git a/asio-1.10.6/include/asio/read.hpp b/asio-1.10.6/include/asio/read.hpp
new file mode 100644
index 0000000..f6fd225
--- /dev/null
+++ b/asio-1.10.6/include/asio/read.hpp
@@ -0,0 +1,364 @@
+//
+// read.hpp
+// ~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_READ_HPP
+#define ASIO_READ_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include "asio/async_result.hpp"
+#include "asio/basic_streambuf_fwd.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/**
+ * @defgroup read asio::read
+ *
+ * @brief Attempt to read a certain amount of data from a stream before
+ * returning.
+ */
+/*@{*/
+
+/// Attempt to read a certain amount of data from a stream before returning.
+/**
+ * This function is used to read a certain number of bytes of data from a
+ * stream. The call will block until one of the following conditions is true:
+ *
+ * @li The supplied buffers are full. That is, the bytes transferred is equal to
+ * the sum of the buffer sizes.
+ *
+ * @li An error occurred.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * read_some function.
+ *
+ * @param s The stream from which the data is to be read. The type must support
+ * the SyncReadStream concept.
+ *
+ * @param buffers One or more buffers into which the data will be read. The sum
+ * of the buffer sizes indicates the maximum number of bytes to read from the
+ * stream.
+ *
+ * @returns The number of bytes transferred.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * To read into a single data buffer use the @ref buffer function as follows:
+ * @code asio::read(s, asio::buffer(data, size)); @endcode
+ * See the @ref buffer documentation for information on reading into multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ *
+ * @note This overload is equivalent to calling:
+ * @code asio::read(
+ *     s, buffers,
+ *     asio::transfer_all()); @endcode
+ */
+template <typename SyncReadStream, typename MutableBufferSequence>
+std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers);
+
+/// Attempt to read a certain amount of data from a stream before returning.
+/**
+ * This function is used to read a certain number of bytes of data from a
+ * stream. The call will block until one of the following conditions is true:
+ *
+ * @li The supplied buffers are full. That is, the bytes transferred is equal to
+ * the sum of the buffer sizes.
+ *
+ * @li An error occurred.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * read_some function.
+ *
+ * @param s The stream from which the data is to be read. The type must support
+ * the SyncReadStream concept.
+ *
+ * @param buffers One or more buffers into which the data will be read. The sum
+ * of the buffer sizes indicates the maximum number of bytes to read from the
+ * stream.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @returns The number of bytes transferred.
+ *
+ * @par Example
+ * To read into a single data buffer use the @ref buffer function as follows:
+ * @code asio::read(s, asio::buffer(data, size), ec); @endcode
+ * See the @ref buffer documentation for information on reading into multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ *
+ * @note This overload is equivalent to calling:
+ * @code asio::read(
+ *     s, buffers,
+ *     asio::transfer_all(), ec); @endcode
+ */
+template <typename SyncReadStream, typename MutableBufferSequence>
+std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers,
+    asio::error_code& ec);
+
+/// Attempt to read a certain amount of data from a stream before returning.
+/**
+ * This function is used to read a certain number of bytes of data from a
+ * stream. The call will block until one of the following conditions is true:
+ *
+ * @li The supplied buffers are full. That is, the bytes transferred is equal to
+ * the sum of the buffer sizes.
+ *
+ * @li The completion_condition function object returns 0.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * read_some function.
+ *
+ * @param s The stream from which the data is to be read. The type must support
+ * the SyncReadStream concept.
+ *
+ * @param buffers One or more buffers into which the data will be read. The sum
+ * of the buffer sizes indicates the maximum number of bytes to read from the
+ * stream.
+ *
+ * @param completion_condition The function object to be called to determine
+ * whether the read operation is complete. The signature of the function object
+ * must be:
+ * @code std::size_t completion_condition(
+ *   // Result of latest read_some operation.
+ *   const asio::error_code& error,
+ *
+ *   // Number of bytes transferred so far.
+ *   std::size_t bytes_transferred
+ * ); @endcode
+ * A return value of 0 indicates that the read operation is complete. A non-zero
+ * return value indicates the maximum number of bytes to be read on the next
+ * call to the stream's read_some function.
+ *
+ * @returns The number of bytes transferred.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * To read into a single data buffer use the @ref buffer function as follows:
+ * @code asio::read(s, asio::buffer(data, size),
+ *     asio::transfer_at_least(32)); @endcode
+ * See the @ref buffer documentation for information on reading into multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ */
+template <typename SyncReadStream, typename MutableBufferSequence,
+  typename CompletionCondition>
+std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers,
+    CompletionCondition completion_condition);
+
+/// Attempt to read a certain amount of data from a stream before returning.
+/**
+ * This function is used to read a certain number of bytes of data from a
+ * stream. The call will block until one of the following conditions is true:
+ *
+ * @li The supplied buffers are full. That is, the bytes transferred is equal to
+ * the sum of the buffer sizes.
+ *
+ * @li The completion_condition function object returns 0.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * read_some function.
+ *
+ * @param s The stream from which the data is to be read. The type must support
+ * the SyncReadStream concept.
+ *
+ * @param buffers One or more buffers into which the data will be read. The sum
+ * of the buffer sizes indicates the maximum number of bytes to read from the
+ * stream.
+ *
+ * @param completion_condition The function object to be called to determine
+ * whether the read operation is complete. The signature of the function object
+ * must be:
+ * @code std::size_t completion_condition(
+ *   // Result of latest read_some operation.
+ *   const asio::error_code& error,
+ *
+ *   // Number of bytes transferred so far.
+ *   std::size_t bytes_transferred
+ * ); @endcode
+ * A return value of 0 indicates that the read operation is complete. A non-zero
+ * return value indicates the maximum number of bytes to be read on the next
+ * call to the stream's read_some function.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @returns The number of bytes read. If an error occurs, returns the total
+ * number of bytes successfully transferred prior to the error.
+ */
+template <typename SyncReadStream, typename MutableBufferSequence,
+    typename CompletionCondition>
+std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers,
+    CompletionCondition completion_condition, asio::error_code& ec);
+
+
+/*@}*/
+/**
+ * @defgroup async_read asio::async_read
+ *
+ * @brief Start an asynchronous operation to read a certain amount of data from
+ * a stream.
+ */
+/*@{*/
+
+/// Start an asynchronous operation to read a certain amount of data from a
+/// stream.
+/**
+ * This function is used to asynchronously read a certain number of bytes of
+ * data from a stream. The function call always returns immediately. The
+ * asynchronous operation will continue until one of the following conditions is
+ * true:
+ *
+ * @li The supplied buffers are full. That is, the bytes transferred is equal to
+ * the sum of the buffer sizes.
+ *
+ * @li An error occurred.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * async_read_some function, and is known as a <em>composed operation</em>. The
+ * program must ensure that the stream performs no other read operations (such
+ * as async_read, the stream's async_read_some function, or any other composed
+ * operations that perform reads) until this operation completes.
+ *
+ * @param s The stream from which the data is to be read. The type must support
+ * the AsyncReadStream concept.
+ *
+ * @param buffers One or more buffers into which the data will be read. The sum
+ * of the buffer sizes indicates the maximum number of bytes to read from the
+ * stream. Although the buffers object may be copied as necessary, ownership of
+ * the underlying memory blocks is retained by the caller, which must guarantee
+ * that they remain valid until the handler is called.
+ *
+ * @param handler The handler to be called when the read operation completes.
+ * Copies will be made of the handler as required. The function signature of the
+ * handler must be:
+ * @code void handler(
+ *   const asio::error_code& error, // Result of operation.
+ *
+ *   std::size_t bytes_transferred           // Number of bytes copied into the
+ *                                           // buffers. If an error occurred,
+ *                                           // this will be the  number of
+ *                                           // bytes successfully transferred
+ *                                           // prior to the error.
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation of
+ * the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @par Example
+ * To read into a single data buffer use the @ref buffer function as follows:
+ * @code
+ * asio::async_read(s, asio::buffer(data, size), handler);
+ * @endcode
+ * See the @ref buffer documentation for information on reading into multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ *
+ * @note This overload is equivalent to calling:
+ * @code asio::async_read(
+ *     s, buffers,
+ *     asio::transfer_all(),
+ *     handler); @endcode
+ */
+template <typename AsyncReadStream, typename MutableBufferSequence,
+    typename ReadHandler>
+ASIO_INITFN_RESULT_TYPE(ReadHandler,
+    void (asio::error_code, std::size_t))
+async_read(AsyncReadStream& s, const MutableBufferSequence& buffers,
+    ASIO_MOVE_ARG(ReadHandler) handler);
+
+/// Start an asynchronous operation to read a certain amount of data from a
+/// stream.
+/**
+ * This function is used to asynchronously read a certain number of bytes of
+ * data from a stream. The function call always returns immediately. The
+ * asynchronous operation will continue until one of the following conditions is
+ * true:
+ *
+ * @li The supplied buffers are full. That is, the bytes transferred is equal to
+ * the sum of the buffer sizes.
+ *
+ * @li The completion_condition function object returns 0.
+ *
+ * @param s The stream from which the data is to be read. The type must support
+ * the AsyncReadStream concept.
+ *
+ * @param buffers One or more buffers into which the data will be read. The sum
+ * of the buffer sizes indicates the maximum number of bytes to read from the
+ * stream. Although the buffers object may be copied as necessary, ownership of
+ * the underlying memory blocks is retained by the caller, which must guarantee
+ * that they remain valid until the handler is called.
+ *
+ * @param completion_condition The function object to be called to determine
+ * whether the read operation is complete. The signature of the function object
+ * must be:
+ * @code std::size_t completion_condition(
+ *   // Result of latest async_read_some operation.
+ *   const asio::error_code& error,
+ *
+ *   // Number of bytes transferred so far.
+ *   std::size_t bytes_transferred
+ * ); @endcode
+ * A return value of 0 indicates that the read operation is complete. A non-zero
+ * return value indicates the maximum number of bytes to be read on the next
+ * call to the stream's async_read_some function.
+ *
+ * @param handler The handler to be called when the read operation completes.
+ * Copies will be made of the handler as required. The function signature of the
+ * handler must be:
+ * @code void handler(
+ *   const asio::error_code& error, // Result of operation.
+ *
+ *   std::size_t bytes_transferred           // Number of bytes copied into the
+ *                                           // buffers. If an error occurred,
+ *                                           // this will be the  number of
+ *                                           // bytes successfully transferred
+ *                                           // prior to the error.
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation of
+ * the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @par Example
+ * To read into a single data buffer use the @ref buffer function as follows:
+ * @code asio::async_read(s,
+ *     asio::buffer(data, size),
+ *     asio::transfer_at_least(32),
+ *     handler); @endcode
+ * See the @ref buffer documentation for information on reading into multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ */
+template <typename AsyncReadStream, typename MutableBufferSequence,
+    typename CompletionCondition, typename ReadHandler>
+ASIO_INITFN_RESULT_TYPE(ReadHandler,
+    void (asio::error_code, std::size_t))
+async_read(AsyncReadStream& s, const MutableBufferSequence& buffers,
+    CompletionCondition completion_condition,
+    ASIO_MOVE_ARG(ReadHandler) handler);
+
+
+/*@}*/
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/impl/read.hpp"
+
+#endif // ASIO_READ_HPP
diff --git a/asio-1.10.6/include/asio/socket_acceptor_service.hpp b/asio-1.10.6/include/asio/socket_acceptor_service.hpp
new file mode 100644
index 0000000..88b7220
--- /dev/null
+++ b/asio-1.10.6/include/asio/socket_acceptor_service.hpp
@@ -0,0 +1,265 @@
+//
+// socket_acceptor_service.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SOCKET_ACCEPTOR_SERVICE_HPP
+#define ASIO_SOCKET_ACCEPTOR_SERVICE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/basic_socket.hpp"
+#include "asio/detail/type_traits.hpp"
+#include "asio/error.hpp"
+#include "asio/io_service.hpp"
+
+# include "asio/detail/reactive_socket_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Default service implementation for a socket acceptor.
+template <typename Protocol>
+class socket_acceptor_service
+  : public asio::detail::service_base<socket_acceptor_service<Protocol> >
+{
+public:
+
+  /// The protocol type.
+  typedef Protocol protocol_type;
+
+  /// The endpoint type.
+  typedef typename protocol_type::endpoint endpoint_type;
+
+private:
+  // The type of the platform-specific implementation.
+  typedef detail::reactive_socket_service<Protocol> service_impl_type;
+
+public:
+  /// The native type of the socket acceptor.
+  typedef typename service_impl_type::implementation_type implementation_type;
+
+  /// (Deprecated: Use native_handle_type.) The native acceptor type.
+  typedef typename service_impl_type::native_handle_type native_type;
+
+  /// The native acceptor type.
+  typedef typename service_impl_type::native_handle_type native_handle_type;
+
+  /// Construct a new socket acceptor service for the specified io_service.
+  explicit socket_acceptor_service(asio::io_service& io_service)
+    : asio::detail::service_base<
+        socket_acceptor_service<Protocol> >(io_service),
+      service_impl_(io_service)
+  {
+  }
+
+  /// Construct a new socket acceptor implementation.
+  void construct(implementation_type& impl)
+  {
+    service_impl_.construct(impl);
+  }
+
+  /// Move-construct a new socket acceptor implementation.
+  void move_construct(implementation_type& impl,
+      implementation_type& other_impl)
+  {
+    service_impl_.move_construct(impl, other_impl);
+  }
+
+  /// Move-assign from another socket acceptor implementation.
+  void move_assign(implementation_type& impl,
+      socket_acceptor_service& other_service,
+      implementation_type& other_impl)
+  {
+    service_impl_.move_assign(impl, other_service.service_impl_, other_impl);
+  }
+
+  /// Move-construct a new socket acceptor implementation from another protocol
+  /// type.
+  template <typename Protocol1>
+  void converting_move_construct(implementation_type& impl,
+      typename socket_acceptor_service<
+        Protocol1>::implementation_type& other_impl,
+      typename enable_if<is_convertible<
+        Protocol1, Protocol>::value>::type* = 0)
+  {
+    service_impl_.template converting_move_construct<Protocol1>(
+        impl, other_impl);
+  }
+
+  /// Destroy a socket acceptor implementation.
+  void destroy(implementation_type& impl)
+  {
+    service_impl_.destroy(impl);
+  }
+
+  /// Open a new socket acceptor implementation.
+  asio::error_code open(implementation_type& impl,
+      const protocol_type& protocol, asio::error_code& ec)
+  {
+    return service_impl_.open(impl, protocol, ec);
+  }
+
+  /// Assign an existing native acceptor to a socket acceptor.
+  asio::error_code assign(implementation_type& impl,
+      const protocol_type& protocol, const native_handle_type& native_acceptor,
+      asio::error_code& ec)
+  {
+    return service_impl_.assign(impl, protocol, native_acceptor, ec);
+  }
+
+  /// Determine whether the acceptor is open.
+  bool is_open(const implementation_type& impl) const
+  {
+    return service_impl_.is_open(impl);
+  }
+
+  /// Cancel all asynchronous operations associated with the acceptor.
+  asio::error_code cancel(implementation_type& impl,
+      asio::error_code& ec)
+  {
+    return service_impl_.cancel(impl, ec);
+  }
+
+  /// Bind the socket acceptor to the specified local endpoint.
+  asio::error_code bind(implementation_type& impl,
+      const endpoint_type& endpoint, asio::error_code& ec)
+  {
+    return service_impl_.bind(impl, endpoint, ec);
+  }
+
+  /// Place the socket acceptor into the state where it will listen for new
+  /// connections.
+  asio::error_code listen(implementation_type& impl, int backlog,
+      asio::error_code& ec)
+  {
+    return service_impl_.listen(impl, backlog, ec);
+  }
+
+  /// Close a socket acceptor implementation.
+  asio::error_code close(implementation_type& impl,
+      asio::error_code& ec)
+  {
+    return service_impl_.close(impl, ec);
+  }
+
+  /// (Deprecated: Use native_handle().) Get the native acceptor implementation.
+  native_type native(implementation_type& impl)
+  {
+    return service_impl_.native_handle(impl);
+  }
+
+  /// Get the native acceptor implementation.
+  native_handle_type native_handle(implementation_type& impl)
+  {
+    return service_impl_.native_handle(impl);
+  }
+
+  /// Set a socket option.
+  template <typename SettableSocketOption>
+  asio::error_code set_option(implementation_type& impl,
+      const SettableSocketOption& option, asio::error_code& ec)
+  {
+    return service_impl_.set_option(impl, option, ec);
+  }
+
+  /// Get a socket option.
+  template <typename GettableSocketOption>
+  asio::error_code get_option(const implementation_type& impl,
+      GettableSocketOption& option, asio::error_code& ec) const
+  {
+    return service_impl_.get_option(impl, option, ec);
+  }
+
+  /// Perform an IO control command on the socket.
+  template <typename IoControlCommand>
+  asio::error_code io_control(implementation_type& impl,
+      IoControlCommand& command, asio::error_code& ec)
+  {
+    return service_impl_.io_control(impl, command, ec);
+  }
+
+  /// Gets the non-blocking mode of the acceptor.
+  bool non_blocking(const implementation_type& impl) const
+  {
+    return service_impl_.non_blocking(impl);
+  }
+
+  /// Sets the non-blocking mode of the acceptor.
+  asio::error_code non_blocking(implementation_type& impl,
+      bool mode, asio::error_code& ec)
+  {
+    return service_impl_.non_blocking(impl, mode, ec);
+  }
+
+  /// Gets the non-blocking mode of the native acceptor implementation.
+  bool native_non_blocking(const implementation_type& impl) const
+  {
+    return service_impl_.native_non_blocking(impl);
+  }
+
+  /// Sets the non-blocking mode of the native acceptor implementation.
+  asio::error_code native_non_blocking(implementation_type& impl,
+      bool mode, asio::error_code& ec)
+  {
+    return service_impl_.native_non_blocking(impl, mode, ec);
+  }
+
+  /// Get the local endpoint.
+  endpoint_type local_endpoint(const implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    return service_impl_.local_endpoint(impl, ec);
+  }
+
+  /// Accept a new connection.
+  template <typename Protocol1, typename SocketService>
+  asio::error_code accept(implementation_type& impl,
+      basic_socket<Protocol1, SocketService>& peer,
+      endpoint_type* peer_endpoint, asio::error_code& ec,
+      typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
+  {
+    return service_impl_.accept(impl, peer, peer_endpoint, ec);
+  }
+
+  /// Start an asynchronous accept.
+  template <typename Protocol1, typename SocketService, typename AcceptHandler>
+  ASIO_INITFN_RESULT_TYPE(AcceptHandler,
+      void (asio::error_code))
+  async_accept(implementation_type& impl,
+      basic_socket<Protocol1, SocketService>& peer,
+      endpoint_type* peer_endpoint,
+      ASIO_MOVE_ARG(AcceptHandler) handler,
+      typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
+  {
+    detail::async_result_init<
+      AcceptHandler, void (asio::error_code)> init(
+        ASIO_MOVE_CAST(AcceptHandler)(handler));
+
+    service_impl_.async_accept(impl, peer, peer_endpoint, init.handler);
+
+    return init.result.get();
+  }
+
+private:
+  // Destroy all user-defined handler objects owned by the service.
+  void shutdown_service()
+  {
+    service_impl_.shutdown_service();
+  }
+
+  // The platform-specific implementation.
+  service_impl_type service_impl_;
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SOCKET_ACCEPTOR_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/socket_base.hpp b/asio-1.10.6/include/asio/socket_base.hpp
new file mode 100644
index 0000000..3dc6ecd
--- /dev/null
+++ b/asio-1.10.6/include/asio/socket_base.hpp
@@ -0,0 +1,436 @@
+//
+// socket_base.hpp
+// ~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SOCKET_BASE_HPP
+#define ASIO_SOCKET_BASE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include "asio/detail/io_control.hpp"
+#include "asio/detail/socket_option.hpp"
+#include "asio/detail/socket_types.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// The socket_base class is used as a base for the basic_stream_socket and
+/// basic_datagram_socket class templates so that we have a common place to
+/// define the shutdown_type and enum.
+class socket_base
+{
+public:
+  /// Different ways a socket may be shutdown.
+  enum shutdown_type
+  {
+    shutdown_receive = ASIO_OS_DEF(SHUT_RD),
+    shutdown_send = ASIO_OS_DEF(SHUT_WR),
+    shutdown_both = ASIO_OS_DEF(SHUT_RDWR)
+  };
+
+  /// Bitmask type for flags that can be passed to send and receive operations.
+  typedef int message_flags;
+
+  ASIO_STATIC_CONSTANT(int,
+      message_peek = ASIO_OS_DEF(MSG_PEEK));
+  ASIO_STATIC_CONSTANT(int,
+      message_out_of_band = ASIO_OS_DEF(MSG_OOB));
+  ASIO_STATIC_CONSTANT(int,
+      message_do_not_route = ASIO_OS_DEF(MSG_DONTROUTE));
+  ASIO_STATIC_CONSTANT(int,
+      message_end_of_record = ASIO_OS_DEF(MSG_EOR));
+
+  /// Socket option to permit sending of broadcast messages.
+  /**
+   * Implements the SOL_SOCKET/SO_BROADCAST socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::udp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::broadcast option(true);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::udp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::broadcast option;
+   * socket.get_option(option);
+   * bool is_set = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Boolean_Socket_Option.
+   */
+  typedef asio::detail::socket_option::boolean<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_BROADCAST)>
+      broadcast;
+
+  /// Socket option to enable socket-level debugging.
+  /**
+   * Implements the SOL_SOCKET/SO_DEBUG socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::debug option(true);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::debug option;
+   * socket.get_option(option);
+   * bool is_set = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Boolean_Socket_Option.
+   */
+  typedef asio::detail::socket_option::boolean<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_DEBUG)> debug;
+
+  /// Socket option to prevent routing, use local interfaces only.
+  /**
+   * Implements the SOL_SOCKET/SO_DONTROUTE socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::udp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::do_not_route option(true);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::udp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::do_not_route option;
+   * socket.get_option(option);
+   * bool is_set = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Boolean_Socket_Option.
+   */
+  typedef asio::detail::socket_option::boolean<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_DONTROUTE)>
+      do_not_route;
+
+  /// Socket option to send keep-alives.
+  /**
+   * Implements the SOL_SOCKET/SO_KEEPALIVE socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::keep_alive option(true);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::keep_alive option;
+   * socket.get_option(option);
+   * bool is_set = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Boolean_Socket_Option.
+   */
+  typedef asio::detail::socket_option::boolean<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_KEEPALIVE)> keep_alive;
+
+  /// Socket option for the send buffer size of a socket.
+  /**
+   * Implements the SOL_SOCKET/SO_SNDBUF socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::send_buffer_size option(8192);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::send_buffer_size option;
+   * socket.get_option(option);
+   * int size = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Integer_Socket_Option.
+   */
+  typedef asio::detail::socket_option::integer<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_SNDBUF)>
+      send_buffer_size;
+
+  /// Socket option for the send low watermark.
+  /**
+   * Implements the SOL_SOCKET/SO_SNDLOWAT socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::send_low_watermark option(1024);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::send_low_watermark option;
+   * socket.get_option(option);
+   * int size = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Integer_Socket_Option.
+   */
+  typedef asio::detail::socket_option::integer<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_SNDLOWAT)>
+      send_low_watermark;
+
+  /// Socket option for the receive buffer size of a socket.
+  /**
+   * Implements the SOL_SOCKET/SO_RCVBUF socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::receive_buffer_size option(8192);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::receive_buffer_size option;
+   * socket.get_option(option);
+   * int size = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Integer_Socket_Option.
+   */
+  typedef asio::detail::socket_option::integer<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_RCVBUF)>
+      receive_buffer_size;
+
+  /// Socket option for the receive low watermark.
+  /**
+   * Implements the SOL_SOCKET/SO_RCVLOWAT socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::receive_low_watermark option(1024);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::receive_low_watermark option;
+   * socket.get_option(option);
+   * int size = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Integer_Socket_Option.
+   */
+  typedef asio::detail::socket_option::integer<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_RCVLOWAT)>
+      receive_low_watermark;
+
+  /// Socket option to allow the socket to be bound to an address that is
+  /// already in use.
+  /**
+   * Implements the SOL_SOCKET/SO_REUSEADDR socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service); 
+   * ...
+   * asio::socket_base::reuse_address option(true);
+   * acceptor.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service); 
+   * ...
+   * asio::socket_base::reuse_address option;
+   * acceptor.get_option(option);
+   * bool is_set = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Boolean_Socket_Option.
+   */
+  typedef asio::detail::socket_option::boolean<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_REUSEADDR)>
+      reuse_address;
+
+  /// Socket option to specify whether the socket lingers on close if unsent
+  /// data is present.
+  /**
+   * Implements the SOL_SOCKET/SO_LINGER socket option.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::linger option(true, 30);
+   * socket.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::linger option;
+   * socket.get_option(option);
+   * bool is_set = option.enabled();
+   * unsigned short timeout = option.timeout();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Linger_Socket_Option.
+   */
+  typedef asio::detail::socket_option::linger<
+    ASIO_OS_DEF(SOL_SOCKET), ASIO_OS_DEF(SO_LINGER)>
+      linger;
+
+  /// Socket option to report aborted connections on accept.
+  /**
+   * Implements a custom socket option that determines whether or not an accept
+   * operation is permitted to fail with asio::error::connection_aborted.
+   * By default the option is false.
+   *
+   * @par Examples
+   * Setting the option:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service); 
+   * ...
+   * asio::socket_base::enable_connection_aborted option(true);
+   * acceptor.set_option(option);
+   * @endcode
+   *
+   * @par
+   * Getting the current option value:
+   * @code
+   * asio::ip::tcp::acceptor acceptor(io_service); 
+   * ...
+   * asio::socket_base::enable_connection_aborted option;
+   * acceptor.get_option(option);
+   * bool is_set = option.value();
+   * @endcode
+   *
+   * @par Concepts:
+   * Socket_Option, Boolean_Socket_Option.
+   */
+  typedef asio::detail::socket_option::boolean<
+    asio::detail::custom_socket_option_level,
+    asio::detail::enable_connection_aborted_option>
+    enable_connection_aborted;
+
+  /// (Deprecated: Use non_blocking().) IO control command to
+  /// set the blocking mode of the socket.
+  /**
+   * Implements the FIONBIO IO control command.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::non_blocking_io command(true);
+   * socket.io_control(command);
+   * @endcode
+   *
+   * @par Concepts:
+   * IO_Control_Command, Boolean_IO_Control_Command.
+   */
+  typedef asio::detail::io_control::non_blocking_io non_blocking_io;
+
+  /// IO control command to get the amount of data that can be read without
+  /// blocking.
+  /**
+   * Implements the FIONREAD IO control command.
+   *
+   * @par Example
+   * @code
+   * asio::ip::tcp::socket socket(io_service); 
+   * ...
+   * asio::socket_base::bytes_readable command(true);
+   * socket.io_control(command);
+   * std::size_t bytes_readable = command.get();
+   * @endcode
+   *
+   * @par Concepts:
+   * IO_Control_Command, Size_IO_Control_Command.
+   */
+  typedef asio::detail::io_control::bytes_readable bytes_readable;
+
+  /// The maximum length of the queue of pending incoming connections.
+  ASIO_STATIC_CONSTANT(int, max_connections
+      = ASIO_OS_DEF(SOMAXCONN));
+
+protected:
+  /// Protected destructor to prevent deletion through this type.
+  ~socket_base()
+  {
+  }
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SOCKET_BASE_HPP
diff --git a/asio-1.10.6/include/asio/stream_socket_service.hpp b/asio-1.10.6/include/asio/stream_socket_service.hpp
new file mode 100644
index 0000000..3710449
--- /dev/null
+++ b/asio-1.10.6/include/asio/stream_socket_service.hpp
@@ -0,0 +1,339 @@
+//
+// stream_socket_service.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_STREAM_SOCKET_SERVICE_HPP
+#define ASIO_STREAM_SOCKET_SERVICE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include "asio/async_result.hpp"
+#include "asio/detail/type_traits.hpp"
+#include "asio/error.hpp"
+#include "asio/io_service.hpp"
+
+# include "asio/detail/reactive_socket_service.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/// Default service implementation for a stream socket.
+template <typename Protocol>
+class stream_socket_service
+  : public asio::detail::service_base<stream_socket_service<Protocol> >
+{
+public:
+
+  /// The protocol type.
+  typedef Protocol protocol_type;
+
+  /// The endpoint type.
+  typedef typename Protocol::endpoint endpoint_type;
+
+private:
+  // The type of the platform-specific implementation.
+  typedef detail::reactive_socket_service<Protocol> service_impl_type;
+
+public:
+  /// The type of a stream socket implementation.
+  typedef typename service_impl_type::implementation_type implementation_type;
+
+  /// (Deprecated: Use native_handle_type.) The native socket type.
+  typedef typename service_impl_type::native_handle_type native_type;
+
+  /// The native socket type.
+  typedef typename service_impl_type::native_handle_type native_handle_type;
+
+  /// Construct a new stream socket service for the specified io_service.
+  explicit stream_socket_service(asio::io_service& io_service)
+    : asio::detail::service_base<
+        stream_socket_service<Protocol> >(io_service),
+      service_impl_(io_service)
+  {
+  }
+
+  /// Construct a new stream socket implementation.
+  void construct(implementation_type& impl)
+  {
+    service_impl_.construct(impl);
+  }
+
+  /// Move-construct a new stream socket implementation.
+  void move_construct(implementation_type& impl,
+      implementation_type& other_impl)
+  {
+    service_impl_.move_construct(impl, other_impl);
+  }
+
+  /// Move-assign from another stream socket implementation.
+  void move_assign(implementation_type& impl,
+      stream_socket_service& other_service,
+      implementation_type& other_impl)
+  {
+    service_impl_.move_assign(impl, other_service.service_impl_, other_impl);
+  }
+
+  /// Move-construct a new stream socket implementation from another protocol
+  /// type.
+  template <typename Protocol1>
+  void converting_move_construct(implementation_type& impl,
+      typename stream_socket_service<
+        Protocol1>::implementation_type& other_impl,
+      typename enable_if<is_convertible<
+        Protocol1, Protocol>::value>::type* = 0)
+  {
+    service_impl_.template converting_move_construct<Protocol1>(
+        impl, other_impl);
+  }
+
+  /// Destroy a stream socket implementation.
+  void destroy(implementation_type& impl)
+  {
+    service_impl_.destroy(impl);
+  }
+
+  /// Open a stream socket.
+  asio::error_code open(implementation_type& impl,
+      const protocol_type& protocol, asio::error_code& ec)
+  {
+    if (protocol.type() == ASIO_OS_DEF(SOCK_STREAM))
+      service_impl_.open(impl, protocol, ec);
+    else
+      ec = asio::error::invalid_argument;
+    return ec;
+  }
+
+  /// Assign an existing native socket to a stream socket.
+  asio::error_code assign(implementation_type& impl,
+      const protocol_type& protocol, const native_handle_type& native_socket,
+      asio::error_code& ec)
+  {
+    return service_impl_.assign(impl, protocol, native_socket, ec);
+  }
+
+  /// Determine whether the socket is open.
+  bool is_open(const implementation_type& impl) const
+  {
+    return service_impl_.is_open(impl);
+  }
+
+  /// Close a stream socket implementation.
+  asio::error_code close(implementation_type& impl,
+      asio::error_code& ec)
+  {
+    return service_impl_.close(impl, ec);
+  }
+
+  /// (Deprecated: Use native_handle().) Get the native socket implementation.
+  native_type native(implementation_type& impl)
+  {
+    return service_impl_.native_handle(impl);
+  }
+
+  /// Get the native socket implementation.
+  native_handle_type native_handle(implementation_type& impl)
+  {
+    return service_impl_.native_handle(impl);
+  }
+
+  /// Cancel all asynchronous operations associated with the socket.
+  asio::error_code cancel(implementation_type& impl,
+      asio::error_code& ec)
+  {
+    return service_impl_.cancel(impl, ec);
+  }
+
+  /// Determine whether the socket is at the out-of-band data mark.
+  bool at_mark(const implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    return service_impl_.at_mark(impl, ec);
+  }
+
+  /// Determine the number of bytes available for reading.
+  std::size_t available(const implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    return service_impl_.available(impl, ec);
+  }
+
+  /// Bind the stream socket to the specified local endpoint.
+  asio::error_code bind(implementation_type& impl,
+      const endpoint_type& endpoint, asio::error_code& ec)
+  {
+    return service_impl_.bind(impl, endpoint, ec);
+  }
+
+  /// Connect the stream socket to the specified endpoint.
+  asio::error_code connect(implementation_type& impl,
+      const endpoint_type& peer_endpoint, asio::error_code& ec)
+  {
+    return service_impl_.connect(impl, peer_endpoint, ec);
+  }
+
+  /// Start an asynchronous connect.
+  template <typename ConnectHandler>
+  ASIO_INITFN_RESULT_TYPE(ConnectHandler,
+      void (asio::error_code))
+  async_connect(implementation_type& impl,
+      const endpoint_type& peer_endpoint,
+      ASIO_MOVE_ARG(ConnectHandler) handler)
+  {
+    detail::async_result_init<
+      ConnectHandler, void (asio::error_code)> init(
+        ASIO_MOVE_CAST(ConnectHandler)(handler));
+
+    service_impl_.async_connect(impl, peer_endpoint, init.handler);
+
+    return init.result.get();
+  }
+
+  /// Set a socket option.
+  template <typename SettableSocketOption>
+  asio::error_code set_option(implementation_type& impl,
+      const SettableSocketOption& option, asio::error_code& ec)
+  {
+    return service_impl_.set_option(impl, option, ec);
+  }
+
+  /// Get a socket option.
+  template <typename GettableSocketOption>
+  asio::error_code get_option(const implementation_type& impl,
+      GettableSocketOption& option, asio::error_code& ec) const
+  {
+    return service_impl_.get_option(impl, option, ec);
+  }
+
+  /// Perform an IO control command on the socket.
+  template <typename IoControlCommand>
+  asio::error_code io_control(implementation_type& impl,
+      IoControlCommand& command, asio::error_code& ec)
+  {
+    return service_impl_.io_control(impl, command, ec);
+  }
+
+  /// Gets the non-blocking mode of the socket.
+  bool non_blocking(const implementation_type& impl) const
+  {
+    return service_impl_.non_blocking(impl);
+  }
+
+  /// Sets the non-blocking mode of the socket.
+  asio::error_code non_blocking(implementation_type& impl,
+      bool mode, asio::error_code& ec)
+  {
+    return service_impl_.non_blocking(impl, mode, ec);
+  }
+
+  /// Gets the non-blocking mode of the native socket implementation.
+  bool native_non_blocking(const implementation_type& impl) const
+  {
+    return service_impl_.native_non_blocking(impl);
+  }
+
+  /// Sets the non-blocking mode of the native socket implementation.
+  asio::error_code native_non_blocking(implementation_type& impl,
+      bool mode, asio::error_code& ec)
+  {
+    return service_impl_.native_non_blocking(impl, mode, ec);
+  }
+
+  /// Get the local endpoint.
+  endpoint_type local_endpoint(const implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    return service_impl_.local_endpoint(impl, ec);
+  }
+
+  /// Get the remote endpoint.
+  endpoint_type remote_endpoint(const implementation_type& impl,
+      asio::error_code& ec) const
+  {
+    return service_impl_.remote_endpoint(impl, ec);
+  }
+
+  /// Disable sends or receives on the socket.
+  asio::error_code shutdown(implementation_type& impl,
+      socket_base::shutdown_type what, asio::error_code& ec)
+  {
+    return service_impl_.shutdown(impl, what, ec);
+  }
+
+  /// Send the given data to the peer.
+  template <typename ConstBufferSequence>
+  std::size_t send(implementation_type& impl,
+      const ConstBufferSequence& buffers,
+      socket_base::message_flags flags, asio::error_code& ec)
+  {
+    return service_impl_.send(impl, buffers, flags, ec);
+  }
+
+  /// Start an asynchronous send.
+  template <typename ConstBufferSequence, typename WriteHandler>
+  ASIO_INITFN_RESULT_TYPE(WriteHandler,
+      void (asio::error_code, std::size_t))
+  async_send(implementation_type& impl,
+      const ConstBufferSequence& buffers,
+      socket_base::message_flags flags,
+      ASIO_MOVE_ARG(WriteHandler) handler)
+  {
+    detail::async_result_init<
+      WriteHandler, void (asio::error_code, std::size_t)> init(
+        ASIO_MOVE_CAST(WriteHandler)(handler));
+
+    service_impl_.async_send(impl, buffers, flags, init.handler);
+
+    return init.result.get();
+  }
+
+  /// Receive some data from the peer.
+  template <typename MutableBufferSequence>
+  std::size_t receive(implementation_type& impl,
+      const MutableBufferSequence& buffers,
+      socket_base::message_flags flags, asio::error_code& ec)
+  {
+    return service_impl_.receive(impl, buffers, flags, ec);
+  }
+
+  /// Start an asynchronous receive.
+  template <typename MutableBufferSequence, typename ReadHandler>
+  ASIO_INITFN_RESULT_TYPE(ReadHandler,
+      void (asio::error_code, std::size_t))
+  async_receive(implementation_type& impl,
+      const MutableBufferSequence& buffers,
+      socket_base::message_flags flags,
+      ASIO_MOVE_ARG(ReadHandler) handler)
+  {
+    detail::async_result_init<
+      ReadHandler, void (asio::error_code, std::size_t)> init(
+        ASIO_MOVE_CAST(ReadHandler)(handler));
+
+    service_impl_.async_receive(impl, buffers, flags, init.handler);
+
+    return init.result.get();
+  }
+
+private:
+  // Destroy all user-defined handler objects owned by the service.
+  void shutdown_service()
+  {
+    service_impl_.shutdown_service();
+  }
+
+  // The platform-specific implementation.
+  service_impl_type service_impl_;
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_STREAM_SOCKET_SERVICE_HPP
diff --git a/asio-1.10.6/include/asio/system_error.hpp b/asio-1.10.6/include/asio/system_error.hpp
new file mode 100644
index 0000000..037f8cd
--- /dev/null
+++ b/asio-1.10.6/include/asio/system_error.hpp
@@ -0,0 +1,31 @@
+//
+// system_error.hpp
+// ~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_SYSTEM_ERROR_HPP
+#define ASIO_SYSTEM_ERROR_HPP
+
+
+#include "asio/detail/config.hpp"
+
+# include <system_error>
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+
+typedef std::system_error system_error;
+
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_SYSTEM_ERROR_HPP
diff --git a/asio-1.10.6/include/asio/write.hpp b/asio-1.10.6/include/asio/write.hpp
new file mode 100644
index 0000000..fc29f46
--- /dev/null
+++ b/asio-1.10.6/include/asio/write.hpp
@@ -0,0 +1,359 @@
+//
+// write.hpp
+// ~~~~~~~~~
+//
+// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_WRITE_HPP
+#define ASIO_WRITE_HPP
+
+
+#include "asio/detail/config.hpp"
+#include <cstddef>
+#include "asio/async_result.hpp"
+#include "asio/basic_streambuf_fwd.hpp"
+#include "asio/error.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+/**
+ * @defgroup write asio::write
+ *
+ * @brief Write a certain amount of data to a stream before returning.
+ */
+/*@{*/
+
+/// Write all of the supplied data to a stream before returning.
+/**
+ * This function is used to write a certain number of bytes of data to a stream.
+ * The call will block until one of the following conditions is true:
+ *
+ * @li All of the data in the supplied buffers has been written. That is, the
+ * bytes transferred is equal to the sum of the buffer sizes.
+ *
+ * @li An error occurred.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * write_some function.
+ *
+ * @param s The stream to which the data is to be written. The type must support
+ * the SyncWriteStream concept.
+ *
+ * @param buffers One or more buffers containing the data to be written. The sum
+ * of the buffer sizes indicates the maximum number of bytes to write to the
+ * stream.
+ *
+ * @returns The number of bytes transferred.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * To write a single data buffer use the @ref buffer function as follows:
+ * @code asio::write(s, asio::buffer(data, size)); @endcode
+ * See the @ref buffer documentation for information on writing multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ *
+ * @note This overload is equivalent to calling:
+ * @code asio::write(
+ *     s, buffers,
+ *     asio::transfer_all()); @endcode
+ */
+template <typename SyncWriteStream, typename ConstBufferSequence>
+std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers);
+
+/// Write all of the supplied data to a stream before returning.
+/**
+ * This function is used to write a certain number of bytes of data to a stream.
+ * The call will block until one of the following conditions is true:
+ *
+ * @li All of the data in the supplied buffers has been written. That is, the
+ * bytes transferred is equal to the sum of the buffer sizes.
+ *
+ * @li An error occurred.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * write_some function.
+ *
+ * @param s The stream to which the data is to be written. The type must support
+ * the SyncWriteStream concept.
+ *
+ * @param buffers One or more buffers containing the data to be written. The sum
+ * of the buffer sizes indicates the maximum number of bytes to write to the
+ * stream.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @returns The number of bytes transferred.
+ *
+ * @par Example
+ * To write a single data buffer use the @ref buffer function as follows:
+ * @code asio::write(s, asio::buffer(data, size), ec); @endcode
+ * See the @ref buffer documentation for information on writing multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ *
+ * @note This overload is equivalent to calling:
+ * @code asio::write(
+ *     s, buffers,
+ *     asio::transfer_all(), ec); @endcode
+ */
+template <typename SyncWriteStream, typename ConstBufferSequence>
+std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers,
+    asio::error_code& ec);
+
+/// Write a certain amount of data to a stream before returning.
+/**
+ * This function is used to write a certain number of bytes of data to a stream.
+ * The call will block until one of the following conditions is true:
+ *
+ * @li All of the data in the supplied buffers has been written. That is, the
+ * bytes transferred is equal to the sum of the buffer sizes.
+ *
+ * @li The completion_condition function object returns 0.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * write_some function.
+ *
+ * @param s The stream to which the data is to be written. The type must support
+ * the SyncWriteStream concept.
+ *
+ * @param buffers One or more buffers containing the data to be written. The sum
+ * of the buffer sizes indicates the maximum number of bytes to write to the
+ * stream.
+ *
+ * @param completion_condition The function object to be called to determine
+ * whether the write operation is complete. The signature of the function object
+ * must be:
+ * @code std::size_t completion_condition(
+ *   // Result of latest write_some operation.
+ *   const asio::error_code& error,
+ *
+ *   // Number of bytes transferred so far.
+ *   std::size_t bytes_transferred
+ * ); @endcode
+ * A return value of 0 indicates that the write operation is complete. A
+ * non-zero return value indicates the maximum number of bytes to be written on
+ * the next call to the stream's write_some function.
+ *
+ * @returns The number of bytes transferred.
+ *
+ * @throws asio::system_error Thrown on failure.
+ *
+ * @par Example
+ * To write a single data buffer use the @ref buffer function as follows:
+ * @code asio::write(s, asio::buffer(data, size),
+ *     asio::transfer_at_least(32)); @endcode
+ * See the @ref buffer documentation for information on writing multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ */
+template <typename SyncWriteStream, typename ConstBufferSequence,
+    typename CompletionCondition>
+std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers,
+    CompletionCondition completion_condition);
+
+/// Write a certain amount of data to a stream before returning.
+/**
+ * This function is used to write a certain number of bytes of data to a stream.
+ * The call will block until one of the following conditions is true:
+ *
+ * @li All of the data in the supplied buffers has been written. That is, the
+ * bytes transferred is equal to the sum of the buffer sizes.
+ *
+ * @li The completion_condition function object returns 0.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * write_some function.
+ *
+ * @param s The stream to which the data is to be written. The type must support
+ * the SyncWriteStream concept.
+ *
+ * @param buffers One or more buffers containing the data to be written. The sum
+ * of the buffer sizes indicates the maximum number of bytes to write to the
+ * stream.
+ *
+ * @param completion_condition The function object to be called to determine
+ * whether the write operation is complete. The signature of the function object
+ * must be:
+ * @code std::size_t completion_condition(
+ *   // Result of latest write_some operation.
+ *   const asio::error_code& error,
+ *
+ *   // Number of bytes transferred so far.
+ *   std::size_t bytes_transferred
+ * ); @endcode
+ * A return value of 0 indicates that the write operation is complete. A
+ * non-zero return value indicates the maximum number of bytes to be written on
+ * the next call to the stream's write_some function.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @returns The number of bytes written. If an error occurs, returns the total
+ * number of bytes successfully transferred prior to the error.
+ */
+template <typename SyncWriteStream, typename ConstBufferSequence,
+    typename CompletionCondition>
+std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers,
+    CompletionCondition completion_condition, asio::error_code& ec);
+
+
+/*@}*/
+/**
+ * @defgroup async_write asio::async_write
+ *
+ * @brief Start an asynchronous operation to write a certain amount of data to a
+ * stream.
+ */
+/*@{*/
+
+/// Start an asynchronous operation to write all of the supplied data to a
+/// stream.
+/**
+ * This function is used to asynchronously write a certain number of bytes of
+ * data to a stream. The function call always returns immediately. The
+ * asynchronous operation will continue until one of the following conditions
+ * is true:
+ *
+ * @li All of the data in the supplied buffers has been written. That is, the
+ * bytes transferred is equal to the sum of the buffer sizes.
+ *
+ * @li An error occurred.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * async_write_some function, and is known as a <em>composed operation</em>. The
+ * program must ensure that the stream performs no other write operations (such
+ * as async_write, the stream's async_write_some function, or any other composed
+ * operations that perform writes) until this operation completes.
+ *
+ * @param s The stream to which the data is to be written. The type must support
+ * the AsyncWriteStream concept.
+ *
+ * @param buffers One or more buffers containing the data to be written.
+ * Although the buffers object may be copied as necessary, ownership of the
+ * underlying memory blocks is retained by the caller, which must guarantee
+ * that they remain valid until the handler is called.
+ *
+ * @param handler The handler to be called when the write operation completes.
+ * Copies will be made of the handler as required. The function signature of
+ * the handler must be:
+ * @code void handler(
+ *   const asio::error_code& error, // Result of operation.
+ *
+ *   std::size_t bytes_transferred           // Number of bytes written from the
+ *                                           // buffers. If an error occurred,
+ *                                           // this will be less than the sum
+ *                                           // of the buffer sizes.
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation of
+ * the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @par Example
+ * To write a single data buffer use the @ref buffer function as follows:
+ * @code
+ * asio::async_write(s, asio::buffer(data, size), handler);
+ * @endcode
+ * See the @ref buffer documentation for information on writing multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ */
+template <typename AsyncWriteStream, typename ConstBufferSequence,
+    typename WriteHandler>
+ASIO_INITFN_RESULT_TYPE(WriteHandler,
+    void (asio::error_code, std::size_t))
+async_write(AsyncWriteStream& s, const ConstBufferSequence& buffers,
+    ASIO_MOVE_ARG(WriteHandler) handler);
+
+/// Start an asynchronous operation to write a certain amount of data to a
+/// stream.
+/**
+ * This function is used to asynchronously write a certain number of bytes of
+ * data to a stream. The function call always returns immediately. The
+ * asynchronous operation will continue until one of the following conditions
+ * is true:
+ *
+ * @li All of the data in the supplied buffers has been written. That is, the
+ * bytes transferred is equal to the sum of the buffer sizes.
+ *
+ * @li The completion_condition function object returns 0.
+ *
+ * This operation is implemented in terms of zero or more calls to the stream's
+ * async_write_some function, and is known as a <em>composed operation</em>. The
+ * program must ensure that the stream performs no other write operations (such
+ * as async_write, the stream's async_write_some function, or any other composed
+ * operations that perform writes) until this operation completes.
+ *
+ * @param s The stream to which the data is to be written. The type must support
+ * the AsyncWriteStream concept.
+ *
+ * @param buffers One or more buffers containing the data to be written.
+ * Although the buffers object may be copied as necessary, ownership of the
+ * underlying memory blocks is retained by the caller, which must guarantee
+ * that they remain valid until the handler is called.
+ *
+ * @param completion_condition The function object to be called to determine
+ * whether the write operation is complete. The signature of the function object
+ * must be:
+ * @code std::size_t completion_condition(
+ *   // Result of latest async_write_some operation.
+ *   const asio::error_code& error,
+ *
+ *   // Number of bytes transferred so far.
+ *   std::size_t bytes_transferred
+ * ); @endcode
+ * A return value of 0 indicates that the write operation is complete. A
+ * non-zero return value indicates the maximum number of bytes to be written on
+ * the next call to the stream's async_write_some function.
+ *
+ * @param handler The handler to be called when the write operation completes.
+ * Copies will be made of the handler as required. The function signature of the
+ * handler must be:
+ * @code void handler(
+ *   const asio::error_code& error, // Result of operation.
+ *
+ *   std::size_t bytes_transferred           // Number of bytes written from the
+ *                                           // buffers. If an error occurred,
+ *                                           // this will be less than the sum
+ *                                           // of the buffer sizes.
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation of
+ * the handler will be performed in a manner equivalent to using
+ * asio::io_service::post().
+ *
+ * @par Example
+ * To write a single data buffer use the @ref buffer function as follows:
+ * @code asio::async_write(s,
+ *     asio::buffer(data, size),
+ *     asio::transfer_at_least(32),
+ *     handler); @endcode
+ * See the @ref buffer documentation for information on writing multiple
+ * buffers in one go, and how to use it with arrays, boost::array or
+ * std::vector.
+ */
+template <typename AsyncWriteStream, typename ConstBufferSequence,
+    typename CompletionCondition, typename WriteHandler>
+ASIO_INITFN_RESULT_TYPE(WriteHandler,
+    void (asio::error_code, std::size_t))
+async_write(AsyncWriteStream& s, const ConstBufferSequence& buffers,
+    CompletionCondition completion_condition,
+    ASIO_MOVE_ARG(WriteHandler) handler);
+
+
+/*@}*/
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#include "asio/impl/write.hpp"
+
+#endif // ASIO_WRITE_HPP