* elf/dl-close.c (_dl_close_worker): When removing object from
[glibc.git] / nptl / pthread_mutexattr_setprioceiling.c
blob9b7874f739afc33d3013365ecdeb55c508c50b1d
1 /* Change priority ceiling setting in pthread_mutexattr_t.
2 Copyright (C) 2006 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
21 #include <errno.h>
22 #include <pthreadP.h>
25 int
26 pthread_mutexattr_setprioceiling (attr, prioceiling)
27 pthread_mutexattr_t *attr;
28 int prioceiling;
30 if (__sched_fifo_min_prio == -1)
31 __init_sched_fifo_prio ();
33 if (__builtin_expect (prioceiling < __sched_fifo_min_prio, 0)
34 || __builtin_expect (prioceiling > __sched_fifo_max_prio, 0)
35 || __builtin_expect ((prioceiling
36 & (PTHREAD_MUTEXATTR_PRIO_CEILING_MASK
37 >> PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT))
38 != prioceiling, 0))
39 return EINVAL;
41 struct pthread_mutexattr *iattr = (struct pthread_mutexattr *) attr;
43 iattr->mutexkind = ((iattr->mutexkind & ~PTHREAD_MUTEXATTR_PRIO_CEILING_MASK)
44 | (prioceiling << PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT));
46 return 0;