libgomp/testsuite/libgomp.c/lock-2.c

   1 #include <omp.h>
   2 #include <stdlib.h>
   3
   4 int
   5 main (void)
   6 {
   7   int l = 0;
   8   omp_nest_lock_t lock;
   9   omp_init_nest_lock (&lock);
  10 #pragma omp parallel reduction (+:l) num_threads (1)
  11   {
  12     if (omp_test_nest_lock (&lock) != 1)
  13       l++;
  14     if (omp_test_nest_lock (&lock) != 2)
  15       l++;
  16   #pragma omp task if (0) shared (lock, l)
  17     {
  18       if (omp_test_nest_lock (&lock) != 0)
  19         l++;
  20     }
  21   #pragma omp taskwait
  22     if (omp_test_nest_lock (&lock) != 3)
  23       l++;
  24     omp_unset_nest_lock (&lock);
  25     omp_unset_nest_lock (&lock);
  26     omp_unset_nest_lock (&lock);
  27   }
  28   if (l)
  29     abort ();
  30   omp_destroy_nest_lock (&lock);
  31   return 0;
  32 }