thr_clean.c revision 157457
1219820Sjeff/* 2219820Sjeff * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>. 3219820Sjeff * All rights reserved. 4219820Sjeff * 5219820Sjeff * Redistribution and use in source and binary forms, with or without 6219820Sjeff * modification, are permitted provided that the following conditions 7219820Sjeff * are met: 8219820Sjeff * 1. Redistributions of source code must retain the above copyright 9219820Sjeff * notice, this list of conditions and the following disclaimer. 10219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 11219820Sjeff * notice, this list of conditions and the following disclaimer in the 12219820Sjeff * documentation and/or other materials provided with the distribution. 13219820Sjeff * 3. All advertising materials mentioning features or use of this software 14219820Sjeff * must display the following acknowledgement: 15219820Sjeff * This product includes software developed by John Birrell. 16219820Sjeff * 4. Neither the name of the author nor the names of any co-contributors 17219820Sjeff * may be used to endorse or promote products derived from this software 18219820Sjeff * without specific prior written permission. 19219820Sjeff * 20219820Sjeff * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 21219820Sjeff * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22219820Sjeff * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23219820Sjeff * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24219820Sjeff * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25219820Sjeff * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26219820Sjeff * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27219820Sjeff * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28219820Sjeff * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29219820Sjeff * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30219820Sjeff * SUCH DAMAGE. 31219820Sjeff * 32219820Sjeff * $FreeBSD: head/lib/libthr/thread/thr_clean.c 157457 2006-04-04 02:57:49Z davidxu $ 33219820Sjeff */ 34219820Sjeff 35219820Sjeff#include "namespace.h" 36219820Sjeff#include <signal.h> 37219820Sjeff#include <errno.h> 38219820Sjeff#include <stdlib.h> 39219820Sjeff#include <pthread.h> 40219820Sjeff#include "un-namespace.h" 41219820Sjeff 42219820Sjeff#include "thr_private.h" 43219820Sjeff 44219820Sjeff__weak_reference(_pthread_cleanup_push, pthread_cleanup_push); 45219820Sjeff__weak_reference(_pthread_cleanup_pop, pthread_cleanup_pop); 46219820Sjeff 47219820Sjeffvoid 48219820Sjeff_pthread_cleanup_push(void (*routine) (void *), void *routine_arg) 49219820Sjeff{ 50219820Sjeff struct pthread *curthread = _get_curthread(); 51219820Sjeff struct pthread_cleanup *new; 52219820Sjeff 53219820Sjeff if ((new = (struct pthread_cleanup *) 54219820Sjeff malloc(sizeof(struct pthread_cleanup))) != NULL) { 55219820Sjeff new->routine = routine; 56219820Sjeff new->routine_arg = routine_arg; 57219820Sjeff new->onstack = 0; 58219820Sjeff new->next = curthread->cleanup; 59219820Sjeff 60219820Sjeff curthread->cleanup = new; 61219820Sjeff } 62219820Sjeff} 63219820Sjeff 64219820Sjeffvoid 65219820Sjeff_pthread_cleanup_pop(int execute) 66219820Sjeff{ 67219820Sjeff struct pthread *curthread = _get_curthread(); 68219820Sjeff struct pthread_cleanup *old; 69219820Sjeff 70219820Sjeff if ((old = curthread->cleanup) != NULL) { 71219820Sjeff curthread->cleanup = old->next; 72219820Sjeff if (execute) { 73219820Sjeff old->routine(old->routine_arg); 74219820Sjeff } 75219820Sjeff if (old->onstack == 0) 76219820Sjeff free(old); 77219820Sjeff } 78219820Sjeff} 79219820Sjeff