1
2
3#include <stdio.h>
4#include <time.h>
5#include <sys/time.h>
6#include <string.h>
7#include <stdlib.h>
8
9void err (const char *s)
10{
11 perror (s);
12 abort ();
13}
14
15int
16main (void)
17{
18 struct timeval t_m = {0, 0};
19 struct timezone t_z = {0, 0};
20 struct timeval t_m1 = {0, 0};
21 int i;
22
23 if (gettimeofday (&t_m, &t_z) != 0)
24 err ("gettimeofday");
25
26 for (i = 1; i < 10000; i++)
27 if (gettimeofday (&t_m1, NULL) != 0)
28 err ("gettimeofday 1");
29 else
30 if (t_m1.tv_sec * 1000000 + t_m1.tv_usec
31 != (t_m.tv_sec * 1000000 + t_m.tv_usec + i * 1000))
32 {
33 fprintf (stderr, "t0 (%ld, %ld), i %d, t1 (%ld, %ld)\n",
34 t_m.tv_sec, t_m.tv_usec, i, t_m1.tv_sec, t_m1.tv_usec);
35 abort ();
36 }
37
38 if (time (NULL) != t_m1.tv_sec)
39 {
40 fprintf (stderr, "time != gettod\n");
41 abort ();
42 }
43
44 printf ("pass\n");
45 exit (0);
46}
47