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b168057a | 1 | /* Copyright (C) 2005-2015 Free Software Foundation, Inc. |
1bcfb5a5 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2005. | |
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 | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
1bcfb5a5 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <pthreadP.h> | |
21 | ||
22 | ||
23 | int | |
78ee2185 | 24 | pthread_mutexattr_setrobust (attr, robustness) |
1bcfb5a5 UD |
25 | pthread_mutexattr_t *attr; |
26 | int robustness; | |
27 | { | |
28 | if (robustness != PTHREAD_MUTEX_STALLED_NP | |
29 | && __builtin_expect (robustness != PTHREAD_MUTEX_ROBUST_NP, 0)) | |
30 | return EINVAL; | |
31 | ||
32 | struct pthread_mutexattr *iattr = (struct pthread_mutexattr *) attr; | |
33 | ||
34 | /* We use bit 30 to signal whether the mutex is going to be | |
35 | robust or not. */ | |
36 | if (robustness == PTHREAD_MUTEX_STALLED_NP) | |
37 | iattr->mutexkind &= ~PTHREAD_MUTEXATTR_FLAG_ROBUST; | |
38 | else | |
39 | iattr->mutexkind |= PTHREAD_MUTEXATTR_FLAG_ROBUST; | |
40 | ||
41 | return 0; | |
42 | } | |
78ee2185 | 43 | weak_alias (pthread_mutexattr_setrobust, pthread_mutexattr_setrobust_np) |