toxcore/nacl/cpucycles/gettimeofday.c
2013-07-02 09:53:34 -04:00

33 lines
586 B
C

#include <time.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/types.h>
#include "osfreq.c"
static double cpufrequency = 0;
static void init(void)
{
cpufrequency = osfreq();
}
long long cpucycles_gettimeofday(void)
{
double result;
struct timeval t;
if (!cpufrequency) init();
gettimeofday(&t,(struct timezone *) 0);
result = t.tv_usec;
result *= 0.000001;
result += (double) t.tv_sec;
result *= cpufrequency;
return result;
}
long long cpucycles_gettimeofday_persecond(void)
{
if (!cpufrequency) init();
return cpufrequency;
}