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zig.h: add missing msvc atomics

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Jacob Young 2023-04-21 23:26:29 -04:00
parent 3f1c51ca90
commit f5cf732659
1 changed files with 16 additions and 5 deletions
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21
lib/zig.h
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@ -3643,18 +3643,29 @@ zig_msvc_atomics(u64, uint64_t, __int64, 64)
zig_msvc_atomics(i64, int64_t, __int64, 64)
#endif
#define zig_msvc_flt_atomics(Type, ReprType, suffix) \
#define zig_msvc_flt_atomics(Type, SigType, suffix) \
static inline bool zig_msvc_cmpxchg_##Type(zig_##Type volatile* obj, zig_##Type* expected, zig_##Type desired) { \
ReprType exchange; \
ReprType comparand; \
ReprType initial; \
SigType exchange; \
SigType comparand; \
SigType initial; \
bool success; \
memcpy(&comparand, expected, sizeof(comparand)); \
memcpy(&exchange, &desired, sizeof(exchange)); \
initial = _InterlockedCompareExchange##suffix((ReprType volatile*)obj, exchange, comparand); \
initial = _InterlockedCompareExchange##suffix((SigType volatile*)obj, exchange, comparand); \
success = initial == comparand; \
if (!success) memcpy(expected, &initial, sizeof(*expected)); \
return success; \
} \
static inline void zig_msvc_atomic_store_##Type(zig_##Type volatile* obj, zig_##Type arg) { \
SigType value; \
memcpy(&value, &arg, sizeof(value)); \
(void)_InterlockedExchange##suffix((SigType volatile*)obj, value); \
} \
static inline zig_##Type zig_msvc_atomic_load_##Type(zig_##Type volatile* obj) { \
zig_##Type result; \
SigType initial = _InterlockedExchangeAdd##suffix((SigType volatile*)obj, (SigType)0); \
memcpy(&result, &initial, sizeof(result)); \
return result; \
}
zig_msvc_flt_atomics(f32, long, )
#if _M_X64