/* 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; }