1 | /* C11 threads recursive mutex tests. |
2 | Copyright (C) 2018-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library 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 GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <threads.h> |
20 | #include <stdio.h> |
21 | #include <unistd.h> |
22 | |
23 | #include <support/check.h> |
24 | |
25 | static int |
26 | do_test (void) |
27 | { |
28 | static mtx_t mutex; |
29 | |
30 | if (mtx_init (mutex: &mutex, type: mtx_plain | mtx_recursive) != thrd_success) |
31 | FAIL_EXIT1 ("mtx_init failed" ); |
32 | |
33 | if (mtx_lock (mutex: &mutex) != thrd_success) |
34 | FAIL_EXIT1 ("mtx_lock failed" ); |
35 | |
36 | /* Lock mutex second time, if not recursive should deadlock. */ |
37 | if (mtx_lock (mutex: &mutex) != thrd_success) |
38 | FAIL_EXIT1 ("mtx_lock failed" ); |
39 | |
40 | mtx_destroy (mutex: &mutex); |
41 | |
42 | return 0; |
43 | } |
44 | |
45 | #include <support/test-driver.c> |
46 | |