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1bdfa2b1 SM |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
88b9d363 | 3 | Copyright 2021-2022 Free Software Foundation, Inc. |
1bdfa2b1 SM |
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 <unistd.h> | |
19 | #include <pthread.h> | |
20 | #include <assert.h> | |
21 | ||
22 | #define NUM_THREADS 4 | |
23 | ||
24 | static pthread_barrier_t barrier; | |
25 | ||
26 | static void * | |
27 | thread_function (void *arg) | |
28 | { | |
29 | pthread_barrier_wait (&barrier); | |
30 | ||
31 | for (int i = 0; i < 30; i++) | |
32 | sleep (1); | |
33 | ||
34 | return NULL; | |
35 | } | |
36 | ||
37 | static void | |
38 | all_threads_started (void) | |
39 | {} | |
40 | ||
41 | int | |
42 | main (void) | |
43 | { | |
44 | pthread_t threads[NUM_THREADS]; | |
45 | ||
46 | pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1); | |
47 | ||
48 | for (int i = 0; i < NUM_THREADS; i++) | |
49 | { | |
50 | int res = pthread_create (&threads[i], NULL, thread_function, NULL); | |
51 | assert (res == 0); | |
52 | } | |
53 | ||
54 | pthread_barrier_wait (&barrier); | |
55 | all_threads_started (); | |
56 | ||
57 | for (int i = 0; i < NUM_THREADS; i++) | |
58 | { | |
59 | int res = pthread_join (threads[i], NULL); | |
60 | assert (res == 0); | |
61 | } | |
62 | ||
63 | return 0; | |
64 | } | |
65 |