/* ==== mutexattr.c =========================================================== * Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Chris Provenzano. * 4. The name of Chris Provenzano may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Description : Mutex functions. * * 1.00 93/07/19 proven * -Started coding this file. */ #ifndef lint static const char rcsid[] = "$Id$"; #endif #include <pthread.h> #include <errno.h> /* ========================================================================== * pthread_mutexattr_init() */ int pthread_mutexattr_init(pthread_mutexattr_t *attr) { attr->m_type = MUTEX_TYPE_FAST; return(OK); } /* ========================================================================== * pthread_mutexattr_destroy() */ int pthread_mutexattr_destroy(pthread_mutexattr_t *attr) { return(OK); } /* ========================================================================== * pthread_mutexattr_settype() */ int pthread_mutexattr_settype(pthread_mutexattr_t *attr, unsigned int type) { switch(type) { case PTHREAD_MUTEXTYPE_FAST: attr->m_type = MUTEX_TYPE_FAST; break; case PTHREAD_MUTEXTYPE_RECURSIVE: attr->m_type = MUTEX_TYPE_COUNTING_FAST; break; case PTHREAD_MUTEXTYPE_DEBUG: attr->m_type = MUTEX_TYPE_DEBUG; break; default: return(EINVAL); } return(OK); } /* ========================================================================== * pthread_mutexattr_gettype() */ int pthread_mutexattr_gettype(pthread_mutexattr_t *attr, unsigned int * type) { *type = (unsigned int)attr->m_type; return(OK); }