/* Get priority ceiling setting from 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 <pthreadP.h> int pthread_mutexattr_getprioceiling ( const pthread_mutexattr_t *attr, int *prioceiling) { const struct pthread_mutexattr *iattr; int ceiling; iattr = (const struct pthread_mutexattr *) attr; ceiling = ((iattr->mutexkind & PTHREAD_MUTEXATTR_PRIO_CEILING_MASK) >> PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT); if (! ceiling) { if (__sched_fifo_min_prio == -1) __init_sched_fifo_prio (); if (ceiling < __sched_fifo_min_prio) ceiling = __sched_fifo_min_prio; } *prioceiling = ceiling; return 0; }