glibc/nptl/pthread_mutex_destroy.c

41 lines
1.3 KiB
C

/* Copyright (C) 2002-2017 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 <stap-probe.h>
int
__pthread_mutex_destroy (pthread_mutex_t *mutex)
{
LIBC_PROBE (mutex_destroy, 1, mutex);
if ((mutex->__data.__kind & PTHREAD_MUTEX_ROBUST_NORMAL_NP) == 0
&& mutex->__data.__nusers != 0)
return EBUSY;
/* Set to an invalid value. */
mutex->__data.__kind = -1;
return 0;
}
strong_alias (__pthread_mutex_destroy, pthread_mutex_destroy)
hidden_def (__pthread_mutex_destroy)