1/* Copyright 2007-2020 Free Software Foundation, Inc.
2
3   This program is free software; you can redistribute it and/or modify
4   it under the terms of the GNU General Public License as published by
5   the Free Software Foundation; either version 3 of the License, or
6   (at your option) any later version.
7
8   This program is distributed in the hope that it will be useful,
9   but WITHOUT ANY WARRANTY; without even the implied warranty of
10   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11   GNU General Public License for more details.
12
13   You should have received a copy of the GNU General Public License
14   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
15
16#include <pthread.h>
17#include <assert.h>
18#include <unistd.h>
19
20static volatile pthread_t main_thread;
21pthread_barrier_t barrier;
22
23static void *
24thread_a (void *arg)
25{
26  int i;
27
28  return 0; /* break-here */
29}
30
31static void *
32thread_b (void *arg)
33{
34  int i;
35
36  pthread_barrier_wait (&barrier);
37
38  i = pthread_join (main_thread, NULL);
39  assert (i == 0);
40
41  return arg;
42}
43
44int
45main (void)
46{
47  pthread_t thread;
48  int i;
49
50  /* First test resuming only `thread_a', which exits.  */
51  i = pthread_create (&thread, NULL, thread_a, NULL);
52  assert (i == 0);
53  pthread_join (thread, NULL);
54
55  /* Then test resuming only the leader, which also exits.  */
56  main_thread = pthread_self ();
57
58  pthread_barrier_init (&barrier, NULL, 2);
59
60  i = pthread_create (&thread, NULL, thread_b, NULL);
61  assert (i == 0);
62
63  pthread_barrier_wait (&barrier);
64
65  pthread_exit (NULL); /* break-here-2 */
66  /* NOTREACHED */
67  return 0;
68}
69