371 lines
11 KiB
C
371 lines
11 KiB
C
/*
|
|
* 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
|
|
|
|
__CRT_INLINE VOID __faststorefence() {
|
|
__asm__ __volatile__ ("mfence");
|
|
}
|
|
|
|
#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 */
|