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- /* Copyright (C) 2002 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #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;
- {
- struct pthread_barrier *ibarrier;
- if (__builtin_expect (count == 0, 0))
- return EINVAL;
- if (attr != NULL)
- {
- struct pthread_barrierattr *iattr;
- iattr = (struct pthread_barrierattr *) attr;
- if (iattr->pshared != PTHREAD_PROCESS_PRIVATE
- && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0))
- /* Invalid attribute. */
- return EINVAL;
- }
- ibarrier = (struct pthread_barrier *) barrier;
- /* Initialize the individual fields. */
- ibarrier->lock = LLL_LOCK_INITIALIZER;
- ibarrier->left = count;
- ibarrier->init_count = count;
- ibarrier->curr_event = 0;
- return 0;
- }
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