time.c

#include <stdint.h>
#include <stdlib.h>
#include "dat.h"

#ifndef WIN32
#  include <sys/time.h>
#else
#include "dat_w32.h"
#include <time.h>

int gettimeofday(struct timeval *tp, void *tzp)
{
    time_t clock;
    struct tm tm;
    SYSTEMTIME wtm;

    GetLocalTime(&wtm);
    tm.tm_year     = wtm.wYear - 1900;
    tm.tm_mon     = wtm.wMonth - 1;
    tm.tm_mday     = wtm.wDay;
    tm.tm_hour     = wtm.wHour;
    tm.tm_min     = wtm.wMinute;
    tm.tm_sec     = wtm.wSecond;
    tm. tm_isdst    = -1;
    clock = mktime(&tm);
    tp->tv_sec = clock;
    tp->tv_usec = wtm.wMilliseconds * 1000;

    return (0);
}
#endif


int64
nanoseconds(void)
{
    int r;
    struct timeval tv;

    r = gettimeofday(&tv, 0);
    if (r != 0) return warnx("gettimeofday"), -1; // can't happen

    return ((int64)tv.tv_sec)*1000000000 + ((int64)tv.tv_usec)*1000;
}