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exposed in Python.h. This function is similar to POSIX gettimeofday(struct timeval *tp), but available on platforms without gettimeofday().
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
#include "Python.h"
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#ifdef __APPLE__
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#if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_FTIME)
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/*
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* _PyTime_gettimeofday falls back to ftime when getttimeofday fails because the latter
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* might fail on some platforms. This fallback is unwanted on MacOSX because
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* that makes it impossible to use a binary build on OSX 10.4 on earlier
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* releases of the OS. Therefore claim we don't support ftime.
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*/
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# undef HAVE_FTIME
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#endif
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#endif
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#ifdef HAVE_FTIME
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#include <sys/timeb.h>
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#if !defined(MS_WINDOWS) && !defined(PYOS_OS2)
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extern int ftime(struct timeb *);
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#endif /* MS_WINDOWS */
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#endif /* HAVE_FTIME */
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void
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_PyTime_gettimeofday(_PyTime_timeval *tp)
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{
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/* There are three ways to get the time:
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(1) gettimeofday() -- resolution in microseconds
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(2) ftime() -- resolution in milliseconds
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(3) time() -- resolution in seconds
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In all cases the return value in a timeval struct.
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Since on some systems (e.g. SCO ODT 3.0) gettimeofday() may
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fail, so we fall back on ftime() or time().
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Note: clock resolution does not imply clock accuracy! */
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#ifdef HAVE_GETTIMEOFDAY
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#ifdef GETTIMEOFDAY_NO_TZ
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if (gettimeofday(tp) == 0)
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return;
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#else /* !GETTIMEOFDAY_NO_TZ */
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if (gettimeofday(tp, (struct timezone *)NULL) == 0)
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return;
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#endif /* !GETTIMEOFDAY_NO_TZ */
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#endif /* !HAVE_GETTIMEOFDAY */
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#if defined(HAVE_FTIME)
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{
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struct timeb t;
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ftime(&t);
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tp->tv_sec = t.time;
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tp->tv_usec = t.millitm * 1000;
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}
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#else /* !HAVE_FTIME */
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tp->tv_sec = time(NULL);
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tp->tv_usec = 0;
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#endif /* !HAVE_FTIME */
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return;
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}
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void
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_PyTime_Init()
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{
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/* Do nothing. Needed to force linking. */
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}
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