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33574c17 | 1 | /* pthread_mutex_init. Hurd version. |
2b778ceb | 2 | Copyright (C) 2016-2021 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> | |
f6fb29d2 | 23 | #include <pthreadP.h> |
33574c17 ST |
24 | #include "pt-mutex.h" |
25 | #include <hurdlock.h> | |
26 | ||
27 | static const pthread_mutexattr_t dfl_attr = { | |
28 | .__prioceiling = 0, | |
29 | .__protocol = PTHREAD_PRIO_NONE, | |
30 | .__pshared = PTHREAD_PROCESS_PRIVATE, | |
31 | .__mutex_type = __PTHREAD_MUTEX_TIMED | |
32 | }; | |
33 | ||
34 | int | |
e775f443 | 35 | __pthread_mutex_init (pthread_mutex_t *mtxp, const pthread_mutexattr_t *attrp) |
33574c17 | 36 | { |
196e62cb ST |
37 | ASSERT_TYPE_SIZE (pthread_mutex_t, __SIZEOF_PTHREAD_MUTEX_T); |
38 | ||
33574c17 ST |
39 | if (attrp == NULL) |
40 | attrp = &dfl_attr; | |
41 | ||
aa0e4663 JM |
42 | mtxp->__flags = (attrp->__pshared == PTHREAD_PROCESS_SHARED |
43 | ? GSYNC_SHARED : 0) | ((attrp->__prioceiling | |
44 | & PTHREAD_MUTEX_ROBUST) | |
45 | ? PTHREAD_MUTEX_ROBUST : 0); | |
33574c17 | 46 | |
aa0e4663 JM |
47 | mtxp->__type = (attrp->__mutex_type |
48 | + (attrp->__mutex_type != __PTHREAD_MUTEX_TIMED)); | |
33574c17 ST |
49 | |
50 | mtxp->__owner_id = 0; | |
51 | mtxp->__shpid = 0; | |
52 | mtxp->__cnt = 0; | |
53 | mtxp->__lock = 0; | |
54 | ||
55 | return 0; | |
56 | } | |
57 | ||
fba7fc5a | 58 | weak_alias (__pthread_mutex_init, pthread_mutex_init) |
e775f443 | 59 | hidden_def (__pthread_mutex_init) |