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Diffstat (limited to 'v_windows/v/thirdparty/stdatomic/win/atomic.h')
| -rw-r--r-- | v_windows/v/thirdparty/stdatomic/win/atomic.h | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/v_windows/v/thirdparty/stdatomic/win/atomic.h b/v_windows/v/thirdparty/stdatomic/win/atomic.h new file mode 100644 index 0000000..f6d7cf5 --- /dev/null +++ b/v_windows/v/thirdparty/stdatomic/win/atomic.h @@ -0,0 +1,366 @@ +/* + * 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 + +#define WIN32_LEAN_AND_MEAN +#include <stddef.h> +#include <stdint.h> +#include <windows.h> + +#ifdef __TINYC__ +#endif + +#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; + +#ifdef __TINYC__ +/* + For TCC it is missing the x64 version of _InterlockedExchangeAdd64 so we + fake it (works the same) with InterlockedCompareExchange64 until it + succeeds +*/ +__CRT_INLINE LONGLONG _InterlockedExchangeAdd64(LONGLONG volatile *Addend, LONGLONG Value) +{ + LONGLONG Old; + do + { + Old = *Addend; + } while (InterlockedCompareExchange64(Addend, Old + Value, Old) != Old); + return Old; +} + +__CRT_INLINE LONG _InterlockedExchangeAdd(LONG volatile *Addend, LONG Value) +{ + LONG Old; + do + { + Old = *Addend; + } while (InterlockedCompareExchange(Addend, Old + Value, Old) != Old); + return Old; +} + +__CRT_INLINE SHORT _InterlockedExchangeAdd16(SHORT volatile *Addend, SHORT Value) +{ + SHORT Old; + do + { + Old = *Addend; + } while (InterlockedCompareExchange16(Addend, Old + Value, Old) != Old); + return Old; +} + +#define InterlockedIncrement64 _InterlockedExchangeAdd64 + +#endif + +#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(object, 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 */ + +/* specialized versions with explicit object size */ + +#define atomic_load_ptr atomic_load +#define atomic_store_ptr atomic_store +#define atomic_compare_exchange_weak_ptr atomic_compare_exchange_weak +#define atomic_compare_exchange_strong_ptr atomic_compare_exchange_strong +#define atomic_exchange_ptr atomic_exchange +#define atomic_fetch_add_ptr atomic_fetch_add +#define atomic_fetch_sub_ptr atomic_fetch_sub +#define atomic_fetch_and_ptr atomic_fetch_and +#define atomic_fetch_or_ptr atomic_fetch_or +#define atomic_fetch_xor_ptr atomic_fetch_xor + +static inline void atomic_store_u64(unsigned long long* object, unsigned long long desired) { + do { + *(object) = (desired); + MemoryBarrier(); + } while (0); +} + +static inline unsigned long long atomic_load_u64(unsigned long long* object) { + return (MemoryBarrier(), *(object)); +} + +#define atomic_exchange_u64(object, desired) \ + InterlockedExchange64(object, desired) + +static inline int atomic_compare_exchange_strong_u64(unsigned long long* object, unsigned long long* expected, + unsigned long long desired) +{ + unsigned long long old = *expected; + *expected = InterlockedCompareExchange64(object, desired, old); + return *expected == old; +} + +#define atomic_compare_exchange_weak_u64(object, expected, desired) \ + atomic_compare_exchange_strong_u64(object, expected, desired) + +#define atomic_fetch_add_u64(object, operand) \ + InterlockedExchangeAdd64(object, operand) + +#define atomic_fetch_sub_u64(object, operand) \ + InterlockedExchangeAdd64(object, -(operand)) + +#define atomic_fetch_or_u64(object, operand) \ + InterlockedOr64(object, operand) + +#define atomic_fetch_xor_u64(object, operand) \ + InterlockedXor64(object, operand) + +#define atomic_fetch_and_u64(object, operand) \ + InterlockedAnd64(object, operand) + + + +static inline void atomic_store_u32(unsigned* object, unsigned desired) { + do { + *(object) = (desired); + MemoryBarrier(); + } while (0); +} + +static inline unsigned atomic_load_u32(unsigned* object) { + return (MemoryBarrier(), *(object)); +} + +#define atomic_exchange_u32(object, desired) \ + InterlockedExchange(object, desired) + +static inline int atomic_compare_exchange_strong_u32(unsigned* object, unsigned* expected, + unsigned desired) +{ + unsigned old = *expected; + *expected = InterlockedCompareExchange(object, desired, old); + return *expected == old; +} + +#define atomic_compare_exchange_weak_u32(object, expected, desired) \ + atomic_compare_exchange_strong_u32(object, expected, desired) + +#define atomic_fetch_add_u32(object, operand) \ + InterlockedExchangeAdd(object, operand) + +#define atomic_fetch_sub_u32(object, operand) \ + InterlockedExchangeAdd(object, -(operand)) + +#define atomic_fetch_or_u32(object, operand) \ + InterlockedOr(object, operand) + +#define atomic_fetch_xor_u32(object, operand) \ + InterlockedXor(object, operand) + +#define atomic_fetch_and_u32(object, operand) \ + InterlockedAnd(object, operand) + + + +static inline void atomic_store_u16(unsigned short* object, unsigned short desired) { + do { + *(object) = (desired); + MemoryBarrier(); + } while (0); +} + +static inline unsigned short atomic_load_u16(unsigned short* object) { + return (MemoryBarrier(), *(object)); +} + +#define atomic_exchange_u16(object, desired) \ + InterlockedExchange16(object, desired) + +static inline int atomic_compare_exchange_strong_u16(unsigned short* object, unsigned short* expected, + unsigned short desired) +{ + unsigned short old = *expected; + *expected = InterlockedCompareExchange16(object, desired, old); + return *expected == old; +} + +#define atomic_compare_exchange_weak_u16(object, expected, desired) \ + atomic_compare_exchange_strong_u16(object, expected, desired) + +#define atomic_fetch_add_u16(object, operand) \ + InterlockedExchangeAdd16(object, operand) + +#define atomic_fetch_sub_u16(object, operand) \ + InterlockedExchangeAdd16(object, -(operand)) + +#define atomic_fetch_or_u16(object, operand) \ + InterlockedOr16(object, operand) + +#define atomic_fetch_xor_u16(object, operand) \ + InterlockedXor16(object, operand) + +#define atomic_fetch_and_u16(object, operand) \ + InterlockedAnd16(object, operand) + + + +#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 */ |