blob: a0c171fb705c55f16c1fa3731805b1d87b5774f8 (
plain)
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
|
/* This testcase is part of GDB, the GNU debugger.
Copyright 2017-2022 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>
static pthread_barrier_t barrier;
static int dummy;
static void *
func1 (void *arg)
{
pthread_barrier_wait (&barrier);
dummy = 1; /* bp1 */
pthread_barrier_wait (&barrier);
dummy = 1;
pthread_barrier_wait (&barrier);
return arg;
}
static void *
func2 (void *arg)
{
pthread_barrier_wait (&barrier);
dummy = 2;
pthread_barrier_wait (&barrier);
dummy = 2;
pthread_barrier_wait (&barrier); /* bp2 */
return arg;
}
int
main (void)
{
pthread_t thread;
pthread_barrier_init (&barrier, NULL, 2);
pthread_create (&thread, NULL, func2, NULL);
func1 (NULL);
pthread_join (thread, NULL);
pthread_barrier_destroy (&barrier);
return 0;
}
|
