1 | /* pthread_mutex_init. Hurd version. |
2 | Copyright (C) 2016-2024 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 <pthread.h> |
20 | #include <stdlib.h> |
21 | #include <assert.h> |
22 | #include <pt-internal.h> |
23 | #include <pthreadP.h> |
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 |
35 | __pthread_mutex_init (pthread_mutex_t *mtxp, const pthread_mutexattr_t *attrp) |
36 | { |
37 | ASSERT_TYPE_SIZE (pthread_mutex_t, __SIZEOF_PTHREAD_MUTEX_T); |
38 | |
39 | if (attrp == NULL) |
40 | attrp = &dfl_attr; |
41 | |
42 | mtxp->__flags = (attrp->__pshared == PTHREAD_PROCESS_SHARED |
43 | ? GSYNC_SHARED : 0) | ((attrp->__prioceiling |
44 | & PTHREAD_MUTEX_ROBUST) |
45 | ? PTHREAD_MUTEX_ROBUST : 0); |
46 | |
47 | mtxp->__type = (attrp->__mutex_type |
48 | + (attrp->__mutex_type != __PTHREAD_MUTEX_TIMED)); |
49 | |
50 | mtxp->__owner_id = 0; |
51 | mtxp->__shpid = 0; |
52 | mtxp->__cnt = 0; |
53 | mtxp->__lock = 0; |
54 | |
55 | return 0; |
56 | } |
57 | |
58 | weak_alias (__pthread_mutex_init, pthread_mutex_init) |
59 | hidden_def (__pthread_mutex_init) |
60 | |