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- /* Copyright (C) 2002, 2003, 2004 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #include <assert.h>
- #include <string.h>
- #include "pthreadP.h"
- static const struct pthread_mutexattr default_attr =
- {
- /* Default is a normal mutex, not shared between processes. */
- .mutexkind = PTHREAD_MUTEX_NORMAL
- };
- int
- __pthread_mutex_init (mutex, mutexattr)
- pthread_mutex_t *mutex;
- const pthread_mutexattr_t *mutexattr;
- {
- const struct pthread_mutexattr *imutexattr;
- assert (sizeof (pthread_mutex_t) <= __SIZEOF_PTHREAD_MUTEX_T);
- imutexattr = (const struct pthread_mutexattr *) mutexattr ?: &default_attr;
- /* Clear the whole variable. */
- memset (mutex, '\0', __SIZEOF_PTHREAD_MUTEX_T);
- /* Copy the values from the attribute. */
- mutex->__data.__kind = imutexattr->mutexkind & ~0x80000000;
- /* Default values: mutex not used yet. */
- // mutex->__count = 0; already done by memset
- // mutex->__owner = 0; already done by memset
- // mutex->__nusers = 0; already done by memset
- // mutex->__spins = 0; already done by memset
- return 0;
- }
- strong_alias (__pthread_mutex_init, pthread_mutex_init)
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