time.c

   1 #include <stdint.h>
   2 #include <stdlib.h>
   3 #include <sys/time.h>
   4 #include "dat.h"
   5
   6 int64
   7 nanoseconds(void)
   8 {
   9     int r;
  10     struct timeval tv;
  11
  12     r = gettimeofday(&tv, 0);
  13     if (r != 0) return warnx("gettimeofday"), -1; // can't happen
  14
  15     return ((int64)tv.tv_sec)*1000000000 + ((int64)tv.tv_usec)*1000;
  16 }