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Always use CLOCK_MONOTONIC if it's available on Unix

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sukibaby
2024-05-08 10:37:17 -07:00
committed by teejusb
parent eb8b428d0f
commit 3d63d80163
1 changed files with 4 additions and 7 deletions
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src/arch/ArchHooks/ArchHooks_Unix.cpp
+4 -7
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@@ -125,21 +125,18 @@ static void TestTLS()
namespace namespace
{ {
clockid_t g_Clock = CLOCK_REALTIME; clockid_t g_Clock = CLOCK_REALTIME;
void OpenGetTime() void OpenGetTime()
{ {
static bool bInitialized = false; static bool bInitialized = false;
if( bInitialized ) if( bInitialized )
return; return;
bInitialized = true; bInitialized = true;
/* Check whether the clock is actually supported. */ /* Check whether CLOCK_MONOTONIC is supported.
* If it isn't available, use CLOCK_REALTIME.*/
timespec ts; timespec ts;
if( clock_getres(CLOCK_MONOTONIC, &ts) == -1 ) if( clock_gettime(CLOCK_MONOTONIC, &ts) == -1 )
return;
/* If the resolution is worse than a millisecond, fall back on CLOCK_REALTIME. */
if( ts.tv_sec > 0 || ts.tv_nsec > 1000000 )
return; return;
g_Clock = CLOCK_MONOTONIC; g_Clock = CLOCK_MONOTONIC;