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fix epicsThreadSleepQuantum not to fail epicsTimeTest because of unrealistically high clock resolution

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This commit is contained in:
zimoch
2023-02-24 16:18:54 +01:00
parent e33728362d
commit 64f67d036b
1 changed files with 14 additions and 6 deletions
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20
modules/libcom/src/osi/os/posix/osdThread.c
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@@ -1024,13 +1024,21 @@ LIBCOM_API void epicsStdCall *epicsThreadPrivateGet(epicsThreadPrivateId id)
LIBCOM_API double epicsStdCall epicsThreadSleepQuantum ()
{
#ifdef CLOCK_REALTIME
struct timespec res;
if (clock_getres(CLOCK_REALTIME, &res) == 0)
return res.tv_sec + 1e-9 * res.tv_nsec;
else
double hz;
#ifndef CLOCK_MONOTONIC_COARSE
#ifdef CLOCK_MONOTONIC
#define CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC
#else
#define CLOCK_MONOTONIC_COARSE CLOCK_REALTIME
#endif
return 1e-3;
#endif
struct timespec res;
if (clock_getres(CLOCK_MONOTONIC_COARSE, &res) == 0)
return res.tv_sec + 1e-9 * res.tv_nsec;
hz = sysconf ( _SC_CLK_TCK );
if(hz<=0)
return 0.0;
return 1.0 / hz;
}
LIBCOM_API int epicsThreadGetCPUs(void)