mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-18 14:03:28 +08:00
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/* Change priority ceiling 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_setprioceiling (attr, prioceiling)
|
|
pthread_mutexattr_t *attr;
|
|
int prioceiling;
|
|
{
|
|
if (prioceiling < 0 || __builtin_expect (prioceiling > 255, 0))
|
|
return EINVAL;
|
|
|
|
struct pthread_mutexattr *iattr = (struct pthread_mutexattr *) attr;
|
|
|
|
iattr->mutexkind = ((iattr->mutexkind & ~PTHREAD_MUTEXATTR_PRIO_CEILING_MASK)
|
|
| (prioceiling << PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT));
|
|
|
|
return 0;
|
|
}
|