mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
173 lines
6.0 KiB
173 lines
6.0 KiB
/* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg 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 |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
/* |
|
* based on vlc_atomic.h from VLC |
|
* Copyright (C) 2010 Rémi Denis-Courmont |
|
*/ |
|
|
|
#ifndef COMPAT_ATOMICS_GCC_STDATOMIC_H |
|
#define COMPAT_ATOMICS_GCC_STDATOMIC_H |
|
|
|
#include <stddef.h> |
|
#include <stdint.h> |
|
|
|
#define ATOMIC_FLAG_INIT 0 |
|
|
|
#define ATOMIC_VAR_INIT(value) (value) |
|
|
|
#define atomic_init(obj, value) \ |
|
do { \ |
|
*(obj) = (value); \ |
|
} while(0) |
|
|
|
#define kill_dependency(y) ((void)0) |
|
|
|
#define atomic_thread_fence(order) \ |
|
__sync_synchronize() |
|
|
|
#define atomic_signal_fence(order) \ |
|
((void)0) |
|
|
|
#define atomic_is_lock_free(obj) 0 |
|
|
|
typedef _Bool atomic_flag; |
|
typedef _Bool atomic_bool; |
|
typedef char atomic_char; |
|
typedef signed char atomic_schar; |
|
typedef unsigned char atomic_uchar; |
|
typedef short atomic_short; |
|
typedef unsigned short atomic_ushort; |
|
typedef int atomic_int; |
|
typedef unsigned int atomic_uint; |
|
typedef long atomic_long; |
|
typedef unsigned long atomic_ulong; |
|
typedef long long atomic_llong; |
|
typedef unsigned long long atomic_ullong; |
|
typedef wchar_t atomic_wchar_t; |
|
typedef int_least8_t atomic_int_least8_t; |
|
typedef uint_least8_t atomic_uint_least8_t; |
|
typedef int_least16_t atomic_int_least16_t; |
|
typedef uint_least16_t atomic_uint_least16_t; |
|
typedef int_least32_t atomic_int_least32_t; |
|
typedef uint_least32_t atomic_uint_least32_t; |
|
typedef int_least64_t atomic_int_least64_t; |
|
typedef uint_least64_t atomic_uint_least64_t; |
|
typedef int_fast8_t atomic_int_fast8_t; |
|
typedef uint_fast8_t atomic_uint_fast8_t; |
|
typedef int_fast16_t atomic_int_fast16_t; |
|
typedef uint_fast16_t atomic_uint_fast16_t; |
|
typedef int_fast32_t atomic_int_fast32_t; |
|
typedef uint_fast32_t atomic_uint_fast32_t; |
|
typedef int_fast64_t atomic_int_fast64_t; |
|
typedef uint_fast64_t atomic_uint_fast64_t; |
|
typedef intptr_t atomic_intptr_t; |
|
typedef uintptr_t atomic_uintptr_t; |
|
typedef size_t atomic_size_t; |
|
typedef ptrdiff_t atomic_ptrdiff_t; |
|
typedef intmax_t atomic_intmax_t; |
|
typedef uintmax_t atomic_uintmax_t; |
|
|
|
#define atomic_store(object, desired) \ |
|
do { \ |
|
*(object) = (desired); \ |
|
__sync_synchronize(); \ |
|
} while (0) |
|
|
|
#define atomic_store_explicit(object, desired, order) \ |
|
atomic_store(object, desired) |
|
|
|
#define atomic_load(object) \ |
|
(__sync_synchronize(), *(object)) |
|
|
|
#define atomic_load_explicit(object, order) \ |
|
atomic_load(object) |
|
|
|
#define atomic_exchange(object, desired) \ |
|
({ \ |
|
__typeof__(object) _obj = (object); \ |
|
__typeof__(*object) _old; \ |
|
do \ |
|
_old = atomic_load(_obj); \ |
|
while (!__sync_bool_compare_and_swap(_obj, _old, (desired))); \ |
|
_old; \ |
|
}) |
|
|
|
#define atomic_exchange_explicit(object, desired, order) \ |
|
atomic_exchange(object, desired) |
|
|
|
#define atomic_compare_exchange_strong(object, expected, desired) \ |
|
({ \ |
|
__typeof__(object) _exp = (expected); \ |
|
__typeof__(*object) _old = *_exp; \ |
|
*_exp = __sync_val_compare_and_swap((object), _old, (desired)); \ |
|
*_exp == _old; \ |
|
}) |
|
|
|
#define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \ |
|
atomic_compare_exchange_strong(object, expected, desired) |
|
|
|
#define atomic_compare_exchange_weak(object, expected, desired) \ |
|
atomic_compare_exchange_strong(object, expected, desired) |
|
|
|
#define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \ |
|
atomic_compare_exchange_weak(object, expected, desired) |
|
|
|
#define atomic_fetch_add(object, operand) \ |
|
__sync_fetch_and_add(object, operand) |
|
|
|
#define atomic_fetch_add_explicit(object, operand, order) \ |
|
atomic_fetch_add(object, operand) |
|
|
|
#define atomic_fetch_sub(object, operand) \ |
|
__sync_fetch_and_sub(object, operand) |
|
|
|
#define atomic_fetch_sub_explicit(object, operand, order) \ |
|
atomic_fetch_sub(object, operand) |
|
|
|
#define atomic_fetch_or(object, operand) \ |
|
__sync_fetch_and_or(object, operand) |
|
|
|
#define atomic_fetch_or_explicit(object, operand, order) \ |
|
atomic_fetch_or(object, operand) |
|
|
|
#define atomic_fetch_xor(object, operand) \ |
|
__sync_fetch_and_xor(object, operand) |
|
|
|
#define atomic_fetch_xor_explicit(object, operand, order) \ |
|
atomic_fetch_xor(object, operand) |
|
|
|
#define atomic_fetch_and(object, operand) \ |
|
__sync_fetch_and_and(object, operand) |
|
|
|
#define atomic_fetch_and_explicit(object, operand, order) \ |
|
atomic_fetch_and(object, operand) |
|
|
|
#define atomic_flag_test_and_set(object) \ |
|
atomic_exchange(object, 1) |
|
|
|
#define atomic_flag_test_and_set_explicit(object, order) \ |
|
atomic_flag_test_and_set(object) |
|
|
|
#define atomic_flag_clear(object) \ |
|
atomic_store(object, 0) |
|
|
|
#define atomic_flag_clear_explicit(object, order) \ |
|
atomic_flag_clear(object) |
|
|
|
#endif /* COMPAT_ATOMICS_GCC_STDATOMIC_H */
|
|
|