thr_clean.c revision 50476
1/* 2 * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by John Birrell. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD: head/lib/libkse/thread/thr_clean.c 50476 1999-08-28 00:22:10Z peter $ 33 */ 34#include <signal.h> 35#include <errno.h> 36#include <stdlib.h> 37#ifdef _THREAD_SAFE 38#include <pthread.h> 39#include "pthread_private.h" 40 41void 42pthread_cleanup_push(void (*routine) (void *), void *routine_arg) 43{ 44 struct pthread_cleanup *new; 45 46 if ((new = (struct pthread_cleanup *) malloc(sizeof(struct pthread_cleanup))) != NULL) { 47 new->routine = routine; 48 new->routine_arg = routine_arg; 49 new->next = _thread_run->cleanup; 50 51 _thread_run->cleanup = new; 52 } 53} 54 55void 56pthread_cleanup_pop(int execute) 57{ 58 struct pthread_cleanup *old; 59 60 if ((old = _thread_run->cleanup) != NULL) { 61 _thread_run->cleanup = old->next; 62 if (execute) { 63 old->routine(old->routine_arg); 64 } 65 free(old); 66 } 67} 68 69#endif 70