1  /* Trivial test of critical sections.  */
       2  
       3  /* { dg-require-effective-target sync_int_long } */
       4  
       5  #include <omp.h>
       6  #include <sys/time.h>
       7  #include <unistd.h>
       8  #include <assert.h>
       9  #include "libgomp_g.h"
      10  
      11  
      12  static volatile int test = -1;
      13  
      14  static void function(void *dummy)
      15  {
      16    int iam = omp_get_thread_num ();
      17    int old;
      18  
      19    GOMP_critical_start ();
      20  
      21    old = __sync_lock_test_and_set (&test, iam);
      22    assert (old == -1);
      23  
      24    usleep (10);
      25    test = -1;
      26  
      27    GOMP_critical_end ();
      28  }
      29  
      30  int main()
      31  {
      32    omp_set_dynamic (0);
      33  
      34    GOMP_parallel_start (function, NULL, 3);
      35    function (NULL);
      36    GOMP_parallel_end ();
      37  
      38    return 0;
      39  }