condattr.c
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:3k
- /* ==== condattr.c ===========================================================
- * Copyright (c) 1995 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 95/08/22 proven
- * -Started coding this file.
- */
- #ifndef lint
- static const char rcsid[] = "$Id$";
- #endif
- #include <pthread.h>
- #include <errno.h>
- /* ==========================================================================
- * pthread_condattr_init()
- */
- int pthread_condattr_init(pthread_condattr_t *attr)
- {
- attr->c_type = COND_TYPE_FAST;
- return(OK);
- }
- /* ==========================================================================
- * pthread_condattr_destroy()
- */
- int pthread_condattr_destroy(pthread_condattr_t *attr)
- {
- return(OK);
- }
- /* ==========================================================================
- * pthread_condattr_settype()
- */
- int pthread_condattr_settype(pthread_condattr_t *attr, unsigned int type)
- {
- switch(type) {
- case PTHREAD_CONDTYPE_FAST:
- attr->c_type = COND_TYPE_FAST;
- break;
- case PTHREAD_CONDTYPE_RECURSIVE:
- attr->c_type = COND_TYPE_COUNTING_FAST;
- break;
- case PTHREAD_CONDTYPE_DEBUG:
- attr->c_type = COND_TYPE_DEBUG;
- break;
- default:
- return(EINVAL);
- }
- return(OK);
- }
- /* ==========================================================================
- * pthread_condattr_gettype()
- */
- int pthread_condattr_gettype(pthread_condattr_t *attr, unsigned int * type)
- {
- *type = (unsigned int)attr->c_type;
- return(OK);
- }