mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/* Copyright (C) 2002-2016 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>
|
|
#include <futex-internal.h>
|
|
#include <sparc-nptl.h>
|
|
|
|
int
|
|
__pthread_barrier_init (pthread_barrier_t *barrier,
|
|
const pthread_barrierattr_t *attr, unsigned int count)
|
|
{
|
|
union sparc_pthread_barrier *ibarrier;
|
|
|
|
if (__glibc_unlikely (count == 0))
|
|
return EINVAL;
|
|
|
|
struct pthread_barrierattr *iattr = (struct pthread_barrierattr *) attr;
|
|
if (iattr != NULL)
|
|
{
|
|
int err = futex_supports_pshared (iattr->pshared);
|
|
if (err != 0)
|
|
return err;
|
|
}
|
|
|
|
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;
|
|
}
|
|
weak_alias (__pthread_barrier_init, pthread_barrier_init)
|