From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 12 Jul 2007 18:26:36 +0000 Subject: 2.5-18.1 --- nptl/pthread_mutexattr_setprotocol.c | 41 ++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 nptl/pthread_mutexattr_setprotocol.c (limited to 'nptl/pthread_mutexattr_setprotocol.c') diff --git a/nptl/pthread_mutexattr_setprotocol.c b/nptl/pthread_mutexattr_setprotocol.c new file mode 100644 index 0000000000..191231244e --- /dev/null +++ b/nptl/pthread_mutexattr_setprotocol.c @@ -0,0 +1,41 @@ +/* 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 , 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 +#include + + +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; +} -- cgit v1.2.3