diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/c_compatibility/stdatomic.h')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/c_compatibility/stdatomic.h | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/c_compatibility/stdatomic.h b/gcc-4.4.3/libstdc++-v3/include/c_compatibility/stdatomic.h deleted file mode 100644 index ecbacc951..000000000 --- a/gcc-4.4.3/libstdc++-v3/include/c_compatibility/stdatomic.h +++ /dev/null @@ -1,221 +0,0 @@ -// -*- C++ -*- compatibility header. - -// Copyright (C) 2008, 2009 Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 3, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// Under Section 7 of GPL version 3, you are granted additional -// permissions described in the GCC Runtime Library Exception, version -// 3.1, as published by the Free Software Foundation. - -// You should have received a copy of the GNU General Public License and -// a copy of the GCC Runtime Library Exception along with this program; -// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -// <http://www.gnu.org/licenses/>. - -/** @file stdatomic.h - * This is a Standard C++ Library header. - */ - -#include <bits/c++config.h> -#include <stddef.h> -#include <stdbool.h> // XXX need to define bool w/o stdbool.h in tr1/cstdbool - -#ifndef _GLIBCXX_STDATOMIC_H -#define _GLIBCXX_STDATOMIC_H 1 - -_GLIBCXX_BEGIN_NAMESPACE(std) -_GLIBCXX_BEGIN_EXTERN_C - - /** - * @defgroup atomics Atomics - * - * Components for performing atomic operations. - * @{ - */ - - /// Enumeration for memory_order - typedef enum memory_order - { - memory_order_relaxed, - memory_order_consume, - memory_order_acquire, - memory_order_release, - memory_order_acq_rel, - memory_order_seq_cst - } memory_order; - - // Base for atomic_flag. - typedef struct __atomic_flag_base - { - bool _M_i; - } __atomic_flag_base; - -#define ATOMIC_FLAG_INIT { false } - - /// 29.2 Lock-free Property -#if defined(_GLIBCXX_ATOMIC_BUILTINS_1) && defined(_GLIBCXX_ATOMIC_BUILTINS_2) \ - && defined(_GLIBCXX_ATOMIC_BUILTINS_4) && defined(_GLIBCXX_ATOMIC_BUILTINS_8) -# define _GLIBCXX_ATOMIC_PROPERTY 2 -# define _GLIBCXX_ATOMIC_NAMESPACE __atomic2 -#elif defined(_GLIBCXX_ATOMIC_BUILTINS_1) -# define _GLIBCXX_ATOMIC_PROPERTY 1 -# define _GLIBCXX_ATOMIC_NAMESPACE __atomic1 -#else -# define _GLIBCXX_ATOMIC_PROPERTY 0 -# define _GLIBCXX_ATOMIC_NAMESPACE __atomic0 -#endif - -#define ATOMIC_INTEGRAL_LOCK_FREE _GLIBCXX_ATOMIC_PROPERTY -#define ATOMIC_ADDRESS_LOCK_FREE _GLIBCXX_ATOMIC_PROPERTY - - // Switch atomic integral base types based on C or C++. In - // addition, for "C" only provide type-generic macros for atomic - // operations. (As C++ accomplishes the same thing with sets of - // overloaded functions. -#ifdef __cplusplus - inline namespace _GLIBCXX_ATOMIC_NAMESPACE { } -# include <bits/atomicfwd_cxx.h> -#else -# include <bits/atomicfwd_c.h> -#endif - - // Typedefs for other atomic integral types. - typedef atomic_schar atomic_int_least8_t; - typedef atomic_uchar atomic_uint_least8_t; - typedef atomic_short atomic_int_least16_t; - typedef atomic_ushort atomic_uint_least16_t; - typedef atomic_int atomic_int_least32_t; - typedef atomic_uint atomic_uint_least32_t; - typedef atomic_llong atomic_int_least64_t; - typedef atomic_ullong atomic_uint_least64_t; - - typedef atomic_schar atomic_int_fast8_t; - typedef atomic_uchar atomic_uint_fast8_t; - typedef atomic_short atomic_int_fast16_t; - typedef atomic_ushort atomic_uint_fast16_t; - typedef atomic_int atomic_int_fast32_t; - typedef atomic_uint atomic_uint_fast32_t; - typedef atomic_llong atomic_int_fast64_t; - typedef atomic_ullong atomic_uint_fast64_t; - - typedef atomic_long atomic_intptr_t; - typedef atomic_ulong atomic_uintptr_t; - - typedef atomic_long atomic_ssize_t; - typedef atomic_ulong atomic_size_t; - - typedef atomic_llong atomic_intmax_t; - typedef atomic_ullong atomic_uintmax_t; - - typedef atomic_long atomic_ptrdiff_t; - - // Accessor functions for base atomic_flag type. - bool - atomic_flag_test_and_set_explicit(volatile __atomic_flag_base*, memory_order); - - inline bool - atomic_flag_test_and_set(volatile __atomic_flag_base* __a) - { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); } - - void - atomic_flag_clear_explicit(volatile __atomic_flag_base*, memory_order); - - inline void - atomic_flag_clear(volatile __atomic_flag_base* __a) - { atomic_flag_clear_explicit(__a, memory_order_seq_cst); } - - void - __atomic_flag_wait_explicit(volatile __atomic_flag_base*, memory_order); - - volatile __atomic_flag_base* - __atomic_flag_for_address(const volatile void* __z) __attribute__((const)); - - // Implementation specific defines. -#define _ATOMIC_LOAD_(__a, __x) \ - ({ volatile __typeof__ _ATOMIC_MEMBER_* __p = &_ATOMIC_MEMBER_; \ - volatile atomic_flag* __g = __atomic_flag_for_address(__p); \ - __atomic_flag_wait_explicit(__g, __x); \ - __typeof__ _ATOMIC_MEMBER_ __r = *__p; \ - atomic_flag_clear_explicit(__g, __x); \ - __r; }) - -#define _ATOMIC_STORE_(__a, __m, __x) \ - ({ volatile __typeof__ _ATOMIC_MEMBER_* __p = &_ATOMIC_MEMBER_; \ - __typeof__(__m) __v = (__m); \ - volatile atomic_flag* __g = __atomic_flag_for_address(__p); \ - __atomic_flag_wait_explicit(__g, __x); \ - *__p = __v; \ - atomic_flag_clear_explicit(__g, __x); \ - __v; }) - -#define _ATOMIC_MODIFY_(__a, __o, __m, __x) \ - ({ volatile __typeof__ _ATOMIC_MEMBER_* __p = &_ATOMIC_MEMBER_; \ - __typeof__(__m) __v = (__m); \ - volatile atomic_flag* __g = __atomic_flag_for_address(__p); \ - __atomic_flag_wait_explicit(__g, __x); \ - __typeof__ _ATOMIC_MEMBER_ __r = *__p; \ - *__p __o __v; \ - atomic_flag_clear_explicit(__g, __x); \ - __r; }) - -#define _ATOMIC_CMPEXCHNG_(__a, __e, __m, __x) \ - ({ volatile __typeof__ _ATOMIC_MEMBER_* __p = &_ATOMIC_MEMBER_; \ - __typeof__(__e) __q = (__e); \ - __typeof__(__m) __v = (__m); \ - bool __r; \ - volatile atomic_flag* __g = __atomic_flag_for_address(__p); \ - __atomic_flag_wait_explicit(__g, __x); \ - __typeof__ _ATOMIC_MEMBER_ __t__ = *__p; \ - if (__t__ == *__q) { *__p = __v; __r = true; } \ - else { *__q = __t__; __r = false; } \ - atomic_flag_clear_explicit(__g, __x); \ - __r; }) - - // @} group atomics - -_GLIBCXX_END_EXTERN_C -_GLIBCXX_END_NAMESPACE - -// Inject into global namespace. -#ifdef __cplusplus - -#include <cstdatomic> - -using std::memory_order; -using std::memory_order_relaxed; -using std::memory_order_consume; -using std::memory_order_acquire; -using std::memory_order_release; -using std::memory_order_acq_rel; -using std::memory_order_seq_cst; -using std::atomic_flag; -using std::atomic_bool; -using std::atomic_char; -using std::atomic_schar; -using std::atomic_uchar; -using std::atomic_short; -using std::atomic_ushort; -using std::atomic_int; -using std::atomic_uint; -using std::atomic_long; -using std::atomic_ulong; -using std::atomic_llong; -using std::atomic_ullong; -using std::atomic_wchar_t; -using std::atomic_char16_t; -using std::atomic_char32_t; -using std::atomic_address; -using std::atomic; -#endif - -#endif |