libgomp/testsuite/libgomp.c-c++-common/task-detach-2.c

   1 /* { dg-do run } */
   2
   3 #include <omp.h>
   4 #include <assert.h>
   5
   6 /* Test handling of detach clause with only a single thread.  The runtime
   7    should not block when a task with an unfulfilled event finishes
   8    running.  */
   9
  10 int main (void)
  11 {
  12   omp_event_handle_t detach_event1, detach_event2;
  13   int x = 0, y = 0, z = 0;
  14
  15   #pragma omp parallel num_threads (1)
  16     #pragma omp single
  17     {
  18       #pragma omp task detach (detach_event1)
  19         x++;
  20
  21       #pragma omp task detach (detach_event2)
  22       {
  23         y++;
  24         omp_fulfill_event (detach_event1);
  25       }
  26
  27       #pragma omp task
  28       {
  29         z++;
  30         omp_fulfill_event (detach_event2);
  31       }
  32     }
  33
  34   assert (x == 1);
  35   assert (y == 1);
  36   assert (z == 1);
  37 }