| /* Copyright (C) 2002-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. |
| |
| 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 <errno.h> |
| #include "pthreadP.h" |
| #include <lowlevellock.h> |
| |
| int |
| pthread_barrier_init (barrier, attr, count) |
| pthread_barrier_t *barrier; |
| const pthread_barrierattr_t *attr; |
| unsigned int count; |
| { |
| union sparc_pthread_barrier *ibarrier; |
| |
| if (__builtin_expect (count == 0, 0)) |
| return EINVAL; |
| |
| struct pthread_barrierattr *iattr = (struct pthread_barrierattr *) attr; |
| if (iattr != NULL) |
| { |
| if (iattr->pshared != PTHREAD_PROCESS_PRIVATE |
| && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0)) |
| /* Invalid attribute. */ |
| return EINVAL; |
| } |
| |
| ibarrier = (union sparc_pthread_barrier *) barrier; |
| |
| /* Initialize the individual fields. */ |
| ibarrier->b.lock = LLL_LOCK_INITIALIZER; |
| ibarrier->b.left = count; |
| ibarrier->b.init_count = count; |
| ibarrier->b.curr_event = 0; |
| ibarrier->s.left_lock = 0; |
| ibarrier->s.pshared = (iattr && iattr->pshared == PTHREAD_PROCESS_SHARED); |
| |
| return 0; |
| } |
