1/* Trivial test of barrier.  */
2
3#include <omp.h>
4#include <sys/time.h>
5#include <unistd.h>
6#include <assert.h>
7#include "libgomp_g.h"
8
9
10struct timeval stamps[3][3];
11
12static void function(void *dummy)
13{
14  int iam = omp_get_thread_num ();
15
16  gettimeofday (&stamps[iam][0], NULL);
17  if (iam == 0)
18    usleep (10);
19
20  GOMP_barrier ();
21
22  if (iam == 0)
23    {
24      gettimeofday (&stamps[0][1], NULL);
25      usleep (10);
26    }
27
28  GOMP_barrier ();
29
30  gettimeofday (&stamps[iam][2], NULL);
31}
32
33int main()
34{
35  omp_set_dynamic (0);
36
37  GOMP_parallel_start (function, NULL, 3);
38  function (NULL);
39  GOMP_parallel_end ();
40
41  assert (!timercmp (&stamps[0][0], &stamps[0][1], >));
42  assert (!timercmp (&stamps[1][0], &stamps[0][1], >));
43  assert (!timercmp (&stamps[2][0], &stamps[0][1], >));
44
45  assert (!timercmp (&stamps[0][1], &stamps[0][2], >));
46  assert (!timercmp (&stamps[0][1], &stamps[1][2], >));
47  assert (!timercmp (&stamps[0][1], &stamps[2][2], >));
48
49  return 0;
50}
51