1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2017-2020 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18#include <pthread.h>
19
20static pthread_barrier_t barrier;
21static int dummy;
22
23static void *
24func1 (void *arg)
25{
26  pthread_barrier_wait (&barrier);
27  dummy = 1; /* bp1 */
28  pthread_barrier_wait (&barrier);
29  dummy = 1;
30  pthread_barrier_wait (&barrier);
31  return arg;
32}
33
34static void *
35func2 (void *arg)
36{
37  pthread_barrier_wait (&barrier);
38  dummy = 2;
39  pthread_barrier_wait (&barrier);
40  dummy = 2;
41  pthread_barrier_wait (&barrier); /* bp2 */
42  return arg;
43}
44
45int
46main (void)
47{
48  pthread_t thread;
49
50  pthread_barrier_init (&barrier, NULL, 2);
51
52  pthread_create (&thread, NULL, func2, NULL);
53  func1 (NULL);
54
55  pthread_join (thread, NULL);
56  pthread_barrier_destroy (&barrier);
57  return 0;
58}
59