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/* pthread_barrier_init. Generic version.
Copyright (C) 2002-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <string.h>
#include <assert.h>
#include <pt-internal.h>
int
pthread_barrier_init (pthread_barrier_t *barrier,
const pthread_barrierattr_t *attr, unsigned count)
{
ASSERT_TYPE_SIZE (pthread_barrier_t, __SIZEOF_PTHREAD_BARRIER_T);
if (count == 0)
return EINVAL;
memset (barrier, 0, sizeof *barrier);
barrier->__lock = PTHREAD_SPINLOCK_INITIALIZER;
barrier->__pending = count;
barrier->__count = count;
if (attr == NULL
|| memcmp (attr, &__pthread_default_barrierattr, sizeof (*attr)) == 0)
/* Use the default attributes. */
return 0;
/* Non-default attributes. */
barrier->__attr = malloc (sizeof *attr);
if (barrier->__attr == NULL)
return ENOMEM;
*barrier->__attr = *attr;
return 0;
}
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