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#include "Python.h"
/* The following timer code comes from Python 2.5.2's _lsprof.c */
#if !defined(HAVE_LONG_LONG)
#error "This module requires long longs!"
#endif
/*** Selection of a high-precision timer ***/
#ifdef MS_WINDOWS
#include <windows.h>
PY_LONG_LONG
hpTimer(void)
{
LARGE_INTEGER li;
QueryPerformanceCounter(&li);
return li.QuadPart;
}
double
hpTimerUnit(void)
{
LARGE_INTEGER li;
if (QueryPerformanceFrequency(&li))
return 1.0 / li.QuadPart;
else
return 0.000001; /* unlikely */
}
#elif (defined(PYOS_OS2) && defined(PYCC_GCC))
#include <sys/time.h>
PY_LONG_LONG
hpTimer(void)
{
struct timeval tv;
PY_LONG_LONG ret;
gettimeofday(&tv, (struct timezone *)NULL);
ret = tv.tv_sec;
ret = ret * 1000000 + tv.tv_usec;
return ret;
}
double
hpTimerUnit(void)
{
return 0.000001;
}
#else
#include <sys/resource.h>
#include <sys/times.h>
PY_LONG_LONG
hpTimer(void)
{
struct timespec ts;
PY_LONG_LONG ret;
clock_gettime(CLOCK_MONOTONIC, &ts);
ret = (PY_LONG_LONG)ts.tv_sec * 1000000000 + (PY_LONG_LONG)ts.tv_nsec;
return ret;
}
double
hpTimerUnit(void)
{
return 0.000000001;
}
#endif
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