cleanup.c
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:3k
- /* ==== cleanup.c =======================================================
- * Copyright (c) 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 : Pthread attribute functions.
- *
- * 1.20 94/02/13 proven
- * -Started coding this file.
- */
- #ifndef lint
- static const char rcsid[] = "$Id$";
- #endif
- #include <pthread.h>
- #include <errno.h>
- #include <stdlib.h>
- /* ==========================================================================
- * pthread_cleanup_push()
- */
- int pthread_cleanup_push(void (*routine)(void *), void *routine_arg)
- {
- struct pthread_cleanup *new;
- int ret;
- if ((new = (struct pthread_cleanup*)malloc(sizeof(struct pthread_cleanup))))
- {
- new->routine = routine;
- new->routine_arg = routine_arg;
- new->next = pthread_run->cleanup;
- pthread_run->cleanup = new;
- ret = OK;
- } else {
- ret = ENOMEM;
- }
- return(ret);
- }
- /* ==========================================================================
- * pthread_cleanup_pop()
- */
- void pthread_cleanup_pop(int execute)
- {
- struct pthread_cleanup *old;
- if ((old = pthread_run->cleanup))
- {
- pthread_run->cleanup = old->next;
- if (execute) {
- old->routine(old->routine_arg);
- }
- free(old);
- }
- }