mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 15:20:10 +00:00
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* Copyright (C) 2002, 2007 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_destroy (barrier)
|
|
pthread_barrier_t *barrier;
|
|
{
|
|
struct pthread_barrier *ibarrier;
|
|
int result = EBUSY;
|
|
|
|
ibarrier = (struct pthread_barrier *) barrier;
|
|
|
|
lll_lock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG);
|
|
|
|
if (__builtin_expect (ibarrier->left == ibarrier->init_count, 1))
|
|
/* The barrier is not used anymore. */
|
|
result = 0;
|
|
else
|
|
/* Still used, return with an error. */
|
|
lll_unlock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG);
|
|
|
|
return result;
|
|
}
|