mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-29 05:51:10 +00:00
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* pthread_barrier_init. Generic version.
|
|
Copyright (C) 2002-2023 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;
|
|
}
|