1 /* Basic time functionality test: check that milliseconds are

     2    incremented for each syscall (does not work on host).  */

     3 #include <stdio.h>

     4 #include <time.h>

     5 #include <sys/time.h>

     6 #include <string.h>

     7 #include <stdlib.h>

     8 

     9 void err (const char *s)

    10 {

    11   perror (s);

    12   abort ();

    13 }

    14 

    15 int

    16 main (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 }