]>
Commit | Line | Data |
---|---|---|
a5f2bd86 | 1 | /* Change priority protocol setting in pthread_mutexattr_t. |
d614a753 | 2 | Copyright (C) 2006-2020 Free Software Foundation, Inc. |
a5f2bd86 RM |
3 | This file is part of the GNU C Library. |
4 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2006. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
a5f2bd86 RM |
19 | |
20 | #include <errno.h> | |
21 | #include <pthreadP.h> | |
22 | ||
23 | ||
24 | int | |
9d46370c | 25 | pthread_mutexattr_setprotocol (pthread_mutexattr_t *attr, int protocol) |
a5f2bd86 RM |
26 | { |
27 | if (protocol != PTHREAD_PRIO_NONE | |
28 | && protocol != PTHREAD_PRIO_INHERIT | |
29 | && __builtin_expect (protocol != PTHREAD_PRIO_PROTECT, 0)) | |
30 | return EINVAL; | |
31 | ||
32 | struct pthread_mutexattr *iattr = (struct pthread_mutexattr *) attr; | |
33 | ||
34 | iattr->mutexkind = ((iattr->mutexkind & ~PTHREAD_MUTEXATTR_PROTOCOL_MASK) | |
35 | | (protocol << PTHREAD_MUTEXATTR_PROTOCOL_SHIFT)); | |
36 | ||
37 | return 0; | |
38 | } |