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compat/atomics/win32/stdatomic.h
180 строк
6 KB
L. E. Segovia
configure: Set WIN32_LEAN_AND_MEAN at configure time
14 авг 2023, 22:57
14 авг 2023, 22:57
ddc1cd5
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/* * 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 */ #ifndef COMPAT_ATOMICS_WIN32_STDATOMIC_H #define COMPAT_ATOMICS_WIN32_STDATOMIC_H #include <stddef.h> #include <stdint.h> #include <windows.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) \ MemoryBarrier(); #define atomic_signal_fence(order) \ ((void)0) #define atomic_is_lock_free(obj) 0 typedef intptr_t atomic_flag; typedef intptr_t atomic_bool; typedef intptr_t atomic_char; typedef intptr_t atomic_schar; typedef intptr_t atomic_uchar; typedef intptr_t atomic_short; typedef intptr_t atomic_ushort; typedef intptr_t atomic_int; typedef intptr_t atomic_uint; typedef intptr_t atomic_long; typedef intptr_t atomic_ulong; typedef intptr_t atomic_llong; typedef intptr_t atomic_ullong; typedef intptr_t atomic_wchar_t; typedef intptr_t atomic_int_least8_t; typedef intptr_t atomic_uint_least8_t; typedef intptr_t atomic_int_least16_t; typedef intptr_t atomic_uint_least16_t; typedef intptr_t atomic_int_least32_t; typedef intptr_t atomic_uint_least32_t; typedef intptr_t atomic_int_least64_t; typedef intptr_t atomic_uint_least64_t; typedef intptr_t atomic_int_fast8_t; typedef intptr_t atomic_uint_fast8_t; typedef intptr_t atomic_int_fast16_t; typedef intptr_t atomic_uint_fast16_t; typedef intptr_t atomic_int_fast32_t; typedef intptr_t atomic_uint_fast32_t; typedef intptr_t atomic_int_fast64_t; typedef intptr_t atomic_uint_fast64_t; typedef intptr_t atomic_intptr_t; typedef intptr_t atomic_uintptr_t; typedef intptr_t atomic_size_t; typedef intptr_t atomic_ptrdiff_t; typedef intptr_t atomic_intmax_t; typedef intptr_t atomic_uintmax_t; #define atomic_store(object, desired) \ do { \ *(object) = (desired); \ MemoryBarrier(); \ } while (0) #define atomic_store_explicit(object, desired, order) \ atomic_store(object, desired) #define atomic_load(object) \ (MemoryBarrier(), *(object)) #define atomic_load_explicit(object, order) \ atomic_load(object) #define atomic_exchange(object, desired) \ InterlockedExchangePointer((PVOID volatile *)object, (PVOID)desired) #define atomic_exchange_explicit(object, desired, order) \ atomic_exchange(object, desired) static inline int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected, intptr_t desired) { intptr_t old = *expected; *expected = (intptr_t)InterlockedCompareExchangePointer( (PVOID *)object, (PVOID)desired, (PVOID)old); return *expected == 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) #ifdef _WIN64 #define atomic_fetch_add(object, operand) \ InterlockedExchangeAdd64(object, operand) #define atomic_fetch_sub(object, operand) \ InterlockedExchangeAdd64(object, -(operand)) #define atomic_fetch_or(object, operand) \ InterlockedOr64(object, operand) #define atomic_fetch_xor(object, operand) \ InterlockedXor64(object, operand) #define atomic_fetch_and(object, operand) \ InterlockedAnd64(object, operand) #else #define atomic_fetch_add(object, operand) \ InterlockedExchangeAdd(object, operand) #define atomic_fetch_sub(object, operand) \ InterlockedExchangeAdd(object, -(operand)) #define atomic_fetch_or(object, operand) \ InterlockedOr(object, operand) #define atomic_fetch_xor(object, operand) \ InterlockedXor(object, operand) #define atomic_fetch_and(object, operand) \ InterlockedAnd(object, operand) #endif /* _WIN64 */ #define atomic_fetch_add_explicit(object, operand, order) \ atomic_fetch_add(object, operand) #define atomic_fetch_sub_explicit(object, operand, order) \ atomic_fetch_sub(object, operand) #define atomic_fetch_or_explicit(object, operand, order) \ atomic_fetch_or(object, operand) #define atomic_fetch_xor_explicit(object, operand, order) \ atomic_fetch_xor(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_WIN32_STDATOMIC_H */