1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/* Copyright 2007-2023 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <assert.h>
#include <unistd.h>
static volatile pthread_t main_thread;
pthread_barrier_t barrier;
static void *
thread_a (void *arg)
{
int i;
return 0; /* break-here */
}
static void *
thread_b (void *arg)
{
int i;
pthread_barrier_wait (&barrier);
i = pthread_join (main_thread, NULL);
assert (i == 0);
return arg;
}
int
main (void)
{
pthread_t thread;
int i;
/* First test resuming only `thread_a', which exits. */
i = pthread_create (&thread, NULL, thread_a, NULL);
assert (i == 0);
pthread_join (thread, NULL);
/* Then test resuming only the leader, which also exits. */
main_thread = pthread_self ();
pthread_barrier_init (&barrier, NULL, 2);
i = pthread_create (&thread, NULL, thread_b, NULL);
assert (i == 0);
pthread_barrier_wait (&barrier);
pthread_exit (NULL); /* break-here-2 */
/* NOTREACHED */
return 0;
}
|
