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 
function(void * dummy)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 
main()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 }
40