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vkd3d-common: Introduce vkd3d_atomic_exchange_u32().

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This commit is contained in:
Henri Verbeet
2024-04-18 18:59:20 +02:00
committed by Alexandre Julliard
parent 5c8a90a6c9
commit b1c326ce56
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 24 additions and 26 deletions
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18
include/private/vkd3d_common.h
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@@ -442,6 +442,24 @@ static inline bool vkd3d_atomic_compare_exchange_u32(uint32_t volatile *x, uint3
#endif
}
static inline uint32_t vkd3d_atomic_exchange_u32(uint32_t volatile *x, uint32_t val)
{
#if HAVE_ATOMIC_EXCHANGE_N
return __atomic_exchange_n(x, val, __ATOMIC_SEQ_CST);
#elif defined(_WIN32)
return InterlockedExchange((LONG *)x, val);
#else
uint32_t expected;
do
{
expected = *x;
} while (!vkd3d_atomic_compare_exchange_u32(x, expected, val));
return expected;
#endif
}
struct vkd3d_mutex
{
#ifdef _WIN32