1  /* { dg-do run { target *-*-linux* *-*-gnu* *-*-freebsd* } } */
       2  /* { dg-timeout 10 } */
       3  
       4  /* Test that omp_fulfill_event works when called from an external
       5     non-OpenMP thread.  */
       6  
       7  #include <omp.h>
       8  #include <unistd.h>
       9  #include <pthread.h>
      10  #include <stdio.h>
      11  
      12  int finished = 0;
      13  int event_pending = 0;
      14  omp_event_handle_t detach_event;
      15  
      16  void *
      17  fulfill_thread (void *)
      18  {
      19    while (!__atomic_load_n (&finished, __ATOMIC_RELAXED))
      20      {
      21        if (__atomic_load_n (&event_pending, __ATOMIC_ACQUIRE))
      22  	{
      23  	  omp_fulfill_event (detach_event);
      24  	  __atomic_store_n (&event_pending, 0, __ATOMIC_RELEASE);
      25  	}
      26  
      27        sleep(1);
      28      }
      29  
      30    return 0;
      31  }
      32  
      33  int
      34  main (void)
      35  {
      36    pthread_t thr;
      37    int dep;
      38    pthread_create (&thr, NULL, fulfill_thread, 0);
      39  
      40    #pragma omp parallel
      41      #pragma omp single
      42      {
      43        omp_event_handle_t ev;
      44  
      45        #pragma omp task depend (out: dep) detach (ev)
      46        {
      47  	detach_event = ev;
      48  	__atomic_store_n (&event_pending, 1, __ATOMIC_RELEASE);
      49        }
      50  
      51        #pragma omp task depend (in: dep)
      52        {
      53  	__atomic_store_n (&finished, 1, __ATOMIC_RELAXED);
      54        }
      55      }
      56  
      57    pthread_join (thr, 0);
      58    return 0;
      59  }