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More closely emulate pthread_once in Windows

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This commit is contained in:
Chris Robinson
2011-08-20 01:07:27 -07:00
parent 9989f33fc2
commit b036bc9e04
1 changed files with 11 additions and 11 deletions
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Alc/ALc.c
+11 -11
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@@ -694,23 +694,23 @@ static void alc_initconfig(void)
}
#ifdef _WIN32
static struct once_control {
LONG canpass;
LONG hasrun;
} once_control = { TRUE, FALSE };
static void call_once(struct once_control *once, void (*callback)(void))
typedef LONG pthread_once_t;
#define PTHREAD_ONCE_INIT 0
static void pthread_once(pthread_once_t *once, void (*callback)(void))
{
while(InterlockedExchange(&once->canpass, FALSE) == FALSE)
LONG ret;
while((ret=InterlockedExchange(once, 1)) == 1)
Sleep(0);
if(InterlockedExchange(&once->hasrun, TRUE) == FALSE)
if(ret == 0)
callback();
InterlockedExchange(&once->canpass, TRUE);
InterlockedExchange(once, 2);
}
#define DO_INITCONFIG() call_once(&once_control, alc_initconfig)
#else
#endif
static pthread_once_t once_control = PTHREAD_ONCE_INIT;
#define DO_INITCONFIG() pthread_once(&once_control, alc_initconfig)
#endif
static void ProbeList(ALCchar **list, size_t *listsize, enum DevProbe type)
{