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- /* Change priority protocol setting in pthread_mutexattr_t.
- Copyright (C) 2006 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
- #include <errno.h>
- #include <pthreadP.h>
- int
- pthread_mutexattr_setprotocol (
- pthread_mutexattr_t *attr,
- int protocol)
- {
- if (protocol != PTHREAD_PRIO_NONE
- && protocol != PTHREAD_PRIO_INHERIT
- && __builtin_expect (protocol != PTHREAD_PRIO_PROTECT, 0))
- return EINVAL;
- struct pthread_mutexattr *iattr = (struct pthread_mutexattr *) attr;
- iattr->mutexkind = ((iattr->mutexkind & ~PTHREAD_MUTEXATTR_PROTOCOL_MASK)
- | (protocol << PTHREAD_MUTEXATTR_PROTOCOL_SHIFT));
- return 0;
- }
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