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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* JDWP internal interfaces.
*/
#ifndef ART_RUNTIME_JDWP_JDWP_PRIV_H_
#define ART_RUNTIME_JDWP_JDWP_PRIV_H_
#include "debugger.h"
#include "jdwp/jdwp.h"
#include "jdwp/jdwp_event.h"
#include <pthread.h>
#include <sys/uio.h>
/*
* JDWP constants.
*/
static constexpr size_t kJDWPHeaderSizeOffset = 0U;
static constexpr size_t kJDWPHeaderIdOffset = 4U;
static constexpr size_t kJDWPHeaderFlagsOffset = 8U;
static constexpr size_t kJDWPHeaderErrorCodeOffset = 9U;
static constexpr size_t kJDWPHeaderCmdSetOffset = 9U;
static constexpr size_t kJDWPHeaderCmdOffset = 10U;
static constexpr size_t kJDWPHeaderLen = 11U;
static constexpr uint8_t kJDWPFlagReply = 0x80;
static constexpr const char kMagicHandshake[] = "JDWP-Handshake";
static constexpr size_t kMagicHandshakeLen = sizeof(kMagicHandshake) - 1;
/* Invoke commands */
static constexpr uint8_t kJDWPClassTypeCmdSet = 3U;
static constexpr uint8_t kJDWPClassTypeInvokeMethodCmd = 3U;
static constexpr uint8_t kJDWPClassTypeNewInstanceCmd = 4U;
static constexpr uint8_t kJDWPObjectReferenceCmdSet = 9U;
static constexpr uint8_t kJDWPObjectReferenceInvokeCmd = 6U;
/* Event command */
static constexpr uint8_t kJDWPEventCmdSet = 64U;
static constexpr uint8_t kJDWPEventCompositeCmd = 100U;
/* DDM support */
static constexpr uint8_t kJDWPDdmCmdSet = 199U; // 0xc7, or 'G'+128
static constexpr uint8_t kJDWPDdmCmd = 1U;
namespace art {
namespace JDWP {
struct JdwpState;
bool InitSocketTransport(JdwpState*, const JdwpOptions*);
bool InitAdbTransport(JdwpState*, const JdwpOptions*);
/*
* Base class for the adb and socket JdwpNetState implementations.
*/
class JdwpNetStateBase {
public:
explicit JdwpNetStateBase(JdwpState*);
virtual ~JdwpNetStateBase();
virtual bool Accept() = 0;
virtual bool Establish(const JdwpOptions*) = 0;
virtual void Shutdown() = 0;
virtual bool ProcessIncoming() = 0;
void ConsumeBytes(size_t byte_count);
bool IsConnected();
bool IsAwaitingHandshake();
void Close();
ssize_t WritePacket(ExpandBuf* pReply, size_t length) LOCKS_EXCLUDED(socket_lock_);
ssize_t WriteBufferedPacket(const std::vector<iovec>& iov) LOCKS_EXCLUDED(socket_lock_);
Mutex* GetSocketLock() {
return &socket_lock_;
}
ssize_t WriteBufferedPacketLocked(const std::vector<iovec>& iov);
int clientSock; // Active connection to debugger.
int wake_pipe_[2]; // Used to break out of select.
uint8_t input_buffer_[8192];
size_t input_count_;
protected:
bool HaveFullPacket();
bool MakePipe();
void WakePipe();
void SetAwaitingHandshake(bool new_state);
JdwpState* state_;
private:
// Used to serialize writes to the socket.
Mutex socket_lock_;
// Are we waiting for the JDWP handshake?
bool awaiting_handshake_;
};
} // namespace JDWP
} // namespace art
#endif // ART_RUNTIME_JDWP_JDWP_PRIV_H_
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