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33574c17 | 1 | /* pthread_mutex_destroy. Hurd version. |
d614a753 | 2 | Copyright (C) 2016-2020 Free Software Foundation, Inc. |
33574c17 ST |
3 | This file is part of the GNU C Library. |
4 | ||
ad2b41bf ST |
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. | |
33574c17 | 9 | |
ad2b41bf | 10 | The GNU C Library is distributed in the hope that it will be useful, |
33574c17 | 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
ad2b41bf ST |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. | |
33574c17 | 14 | |
ad2b41bf ST |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
33574c17 ST |
18 | |
19 | #include <pthread.h> | |
20 | #include <stdlib.h> | |
21 | #include <assert.h> | |
22 | #include <pt-internal.h> | |
23 | #include "pt-mutex.h" | |
24 | #include <hurdlock.h> | |
25 | ||
26 | int | |
27 | _pthread_mutex_destroy (pthread_mutex_t *mtxp) | |
28 | { | |
29 | atomic_read_barrier (); | |
30 | if (*(volatile unsigned int *) &mtxp->__lock != 0) | |
31 | return EBUSY; | |
32 | ||
33 | mtxp->__type = -1; | |
34 | return 0; | |
35 | } | |
36 | ||
37 | strong_alias (_pthread_mutex_destroy, pthread_mutex_destroy) |