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Common: ensures thread safety of ffTimeInitQpcMultiplier

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李通洲
2026-01-14 10:03:51 +08:00
parent 501746a270
commit 1699d14984
2 changed files with 8 additions and 6 deletions
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src/common/impl/time.c
+8
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@@ -84,4 +84,12 @@ FFTimeGetAgeResult ffTimeGetAge(uint64_t birthMs, uint64_t nowMs)
#ifdef _WIN32
double ffQpcMultiplier;
__attribute__((constructor))
static void ffTimeInitQpcMultiplier(void)
{
LARGE_INTEGER frequency;
QueryPerformanceFrequency(&frequency);
ffQpcMultiplier = 1000. / (double) frequency.QuadPart;
}
#endif
src/common/time.h
-6
View File
@@ -25,12 +25,6 @@ static inline double ffTimeGetTick(void) //In msec
{
#ifdef _WIN32
extern double ffQpcMultiplier;
if (ffQpcMultiplier == 0)
{
LARGE_INTEGER frequency;
QueryPerformanceFrequency(&frequency);
ffQpcMultiplier = 1000. / (double) frequency.QuadPart;
}
LARGE_INTEGER start;
QueryPerformanceCounter(&start);
return (double) start.QuadPart * ffQpcMultiplier;