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comparison libgomp/testsuite/libgomp.c/single-1.c @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
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 }