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Implemented InterlockedCompareExchangePointer and

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InterlockedExchangePointer for x86-64.
This commit is contained in:
Alexandre Julliard 2005-09-13 15:01:41 +00:00
parent 7c1925a0f3
commit c9b27e90ce
1 changed files with 14 additions and 1 deletions
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15
include/winbase.h
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@ -2268,15 +2268,28 @@ VOID WINAPI SetLastError(DWORD);
#endif /* __i386__ && __GNUC__ && __WINESRC__ && !_NTSYSTEM_ */ #endif /* __i386__ && __GNUC__ && __WINESRC__ && !_NTSYSTEM_ */
/* FIXME: should handle platforms where sizeof(void*) != sizeof(long) */
static inline PVOID WINAPI InterlockedCompareExchangePointer( PVOID volatile *dest, PVOID xchg, PVOID compare ) static inline PVOID WINAPI InterlockedCompareExchangePointer( PVOID volatile *dest, PVOID xchg, PVOID compare )
{ {
#if defined(__x86_64__) && defined(__GNUC__)
PVOID ret;
__asm__ __volatile__( "lock; cmpxchgq %2,(%1)"
: "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
return ret;
#else
return (PVOID)InterlockedCompareExchange( (PLONG)dest, (LONG)xchg, (LONG)compare ); return (PVOID)InterlockedCompareExchange( (PLONG)dest, (LONG)xchg, (LONG)compare );
#endif
} }
static inline PVOID WINAPI InterlockedExchangePointer( PVOID volatile *dest, PVOID val ) static inline PVOID WINAPI InterlockedExchangePointer( PVOID volatile *dest, PVOID val )
{ {
#if defined(__x86_64__) && defined(__GNUC__)
PVOID ret;
__asm__ __volatile__( "lock; xchgq %0,(%1)"
: "=r" (ret) :"r" (dest), "0" (val) : "memory" );
return ret;
#else
return (PVOID)InterlockedExchange( (PLONG)dest, (LONG)val ); return (PVOID)InterlockedExchange( (PLONG)dest, (LONG)val );
#endif
} }
#ifdef __WINESRC__ #ifdef __WINESRC__