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1/* C11 threads recursive mutex tests.
2 Copyright (C) 2018-2019 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 <http://www.gnu.org/licenses/>. */
18
19#include <threads.h>
20#include <stdio.h>
21#include <unistd.h>
22
23#include <support/check.h>
24
25static int
26do_test (void)
27{
28 static mtx_t mutex;
29
30 if (mtx_init (&mutex, mtx_recursive) != thrd_success)
31 FAIL_EXIT1 ("mtx_init failed");
32
33 if (mtx_lock (&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) != thrd_success)
38 FAIL_EXIT1 ("mtx_lock failed");
39
40 mtx_destroy (&mutex);
41
42 return 0;
43}
44
45#include <support/test-driver.c>
46

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