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vkd3d-common: Introduce vkd3d_atomic_exchange_ptr().

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This commit is contained in:
Henri Verbeet
2024-04-18 19:15:52 +02:00
committed by Alexandre Julliard
parent b1c326ce56
commit af33caf036
Notes: Alexandre Julliard 2024-04-25 00:15:41 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/829
3 changed files with 32 additions and 38 deletions
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29
include/private/vkd3d_common.h
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@@ -442,6 +442,17 @@ static inline bool vkd3d_atomic_compare_exchange_u32(uint32_t volatile *x, uint3
#endif
}
static inline bool vkd3d_atomic_compare_exchange_ptr(void * volatile *x, void *expected, void *val)
{
#if HAVE_SYNC_BOOL_COMPARE_AND_SWAP
return __sync_bool_compare_and_swap(x, expected, val);
#elif defined(_WIN32)
return InterlockedCompareExchangePointer(x, val, expected) == expected;
#else
# error "vkd3d_atomic_compare_exchange_ptr() not implemented for this platform"
#endif
}
static inline uint32_t vkd3d_atomic_exchange_u32(uint32_t volatile *x, uint32_t val)
{
#if HAVE_ATOMIC_EXCHANGE_N
@@ -460,6 +471,24 @@ static inline uint32_t vkd3d_atomic_exchange_u32(uint32_t volatile *x, uint32_t
#endif
}
static inline void *vkd3d_atomic_exchange_ptr(void * volatile *x, void *val)
{
#if HAVE_ATOMIC_EXCHANGE_N
return __atomic_exchange_n(x, val, __ATOMIC_SEQ_CST);
#elif defined(_WIN32)
return InterlockedExchangePointer(x, val);
#else
void *expected;
do
{
expected = *x;
} while (!vkd3d_atomic_compare_exchange_ptr(x, expected, val));
return expected;
#endif
}
struct vkd3d_mutex
{
#ifdef _WIN32