/* * pthread_mutexattr_init.c * * Description: * This translation unit implements mutual exclusion (mutex) primitives. * * -------------------------------------------------------------------------- * * Pthreads-win32 - POSIX Threads Library for Win32 * Copyright(C) 1998 John E. Bossom * Copyright(C) 1999,2012 Pthreads-win32 contributors * * Homepage1: http://sourceware.org/pthreads-win32/ * Homepage2: http://sourceforge.net/projects/pthreads4w/ * * The current list of contributors is contained * in the file CONTRIBUTORS included with the source * code distribution. The list can also be seen at the * following World Wide Web location: * http://sources.redhat.com/pthreads-win32/contributors.html * * This 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 of the License, or (at your option) any later version. * * This 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 this library in the file COPYING.LIB; * if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include "pthread.h" #include "implement.h" int pthread_mutexattr_init (pthread_mutexattr_t * attr) /* * ------------------------------------------------------ * DOCPUBLIC * Initializes a mutex attributes object with default * attributes. * * PARAMETERS * attr * pointer to an instance of pthread_mutexattr_t * * * DESCRIPTION * Initializes a mutex attributes object with default * attributes. * * NOTES: * 1) Used to define mutex types * * RESULTS * 0 successfully initialized attr, * ENOMEM insufficient memory for attr. * * ------------------------------------------------------ */ { int result = 0; pthread_mutexattr_t ma; ma = (pthread_mutexattr_t) calloc (1, sizeof (*ma)); if (ma == NULL) { result = ENOMEM; } else { ma->pshared = PTHREAD_PROCESS_PRIVATE; ma->kind = PTHREAD_MUTEX_DEFAULT; ma->robustness = PTHREAD_MUTEX_STALLED; } *attr = ma; return (result); } /* pthread_mutexattr_init */