pyps_gettime.c

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#ifndef PYPS_TIME_FILE
        #error pyps should define PYPS_TIME_FILE on its own
#endif
#include <sys/time.h>
#include <stdio.h>
 
// Warning: these functions aren't thread-safe !!
 
static FILE *__pyps_timefile = 0;
 
void __pyps_bench_start(struct timeval *timestart)
{
        gettimeofday(timestart, NULL);
}
 
void __pyps_bench_stop(const char* module, const struct timeval *timestart)
{
        struct timeval timeend;
        gettimeofday(&timeend, NULL);
        
        long diff = (timeend.tv_sec-timestart->tv_sec)*1000000 + (timeend.tv_usec-timestart->tv_usec);
        
        if (__pyps_timefile == 0)
                __pyps_timefile = fopen(PYPS_TIME_FILE, "w");
        if (__pyps_timefile)
        {
                fprintf(__pyps_timefile, "%s: %ld\n", module, diff);
                fflush(__pyps_timefile);
        }
}
 
void __pyps_bench_close(void)
{
        if (__pyps_timefile != 0)
                fclose(__pyps_timefile);
}
atexit(__pyps_bench_close);