1 /* Trivial test of single.  */
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 int test;
13 
14 static void f_nocopy (void *dummy)
15 {
16   if (GOMP_single_start ())
17     {
18       int iam = omp_get_thread_num ();
19       int old = __sync_lock_test_and_set (&test, iam);
20       assert (old == -1);
21     }
22 }
23 
24 static void f_copy (void *dummy)
25 {
26   int *x = GOMP_single_copy_start ();
27   if (x == NULL)
28     {
29       int iam = omp_get_thread_num ();
30       int old = __sync_lock_test_and_set (&test, iam);
31       assert (old == -1);
32       GOMP_single_copy_end (&test);
33     }
34   else
35     assert (x == &test);
36 }
37 
38 int main()
39 {
40   omp_set_dynamic (0);
41 
42   test = -1;
43   GOMP_parallel_start (f_nocopy, NULL, 3);
44   f_nocopy (NULL);
45   GOMP_parallel_end ();
46 
47   test = -1;
48   GOMP_parallel_start (f_copy, NULL, 3);
49   f_copy (NULL);
50   GOMP_parallel_end ();
51 
52   return 0;
53 }
54