thr_clean.c revision 71581 
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 71581 2001-01-24 13:03:38Z deischen $
33 */
34#include <signal.h>
35#include <errno.h>
36#include <stdlib.h>
37#include <pthread.h>
38#include "pthread_private.h"
39
40#pragma weak	pthread_cleanup_push=_pthread_cleanup_push
41#pragma weak	pthread_cleanup_pop=_pthread_cleanup_pop
42
43void
44_pthread_cleanup_push(void (*routine) (void *), void *routine_arg)
45{
46	struct pthread	*curthread = _get_curthread();
47	struct pthread_cleanup *new;
48
49	if ((new = (struct pthread_cleanup *) malloc(sizeof(struct pthread_cleanup))) != NULL) {
50		new->routine = routine;
51		new->routine_arg = routine_arg;
52		new->next = curthread->cleanup;
53
54		curthread->cleanup = new;
55	}
56}
57
58void
59_pthread_cleanup_pop(int execute)
60{
61	struct pthread	*curthread = _get_curthread();
62	struct pthread_cleanup *old;
63
64	if ((old = curthread->cleanup) != NULL) {
65		curthread->cleanup = old->next;
66		if (execute) {
67			old->routine(old->routine_arg);
68		}
69		free(old);
70	}
71}
72
73