| /* 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, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <errno.h> |
| #include <pthreadP.h> |
| |
| |
| int |
| pthread_mutexattr_setprotocol (attr, protocol) |
| 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; |
| } |