1 /* $OpenBSD: uthread_clean.c,v 1.4 2001/08/21 19:24:53 fgsch Exp $ */
2 /*
3 * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by John Birrell.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $FreeBSD: uthread_clean.c,v 1.4 1999/08/28 00:03:26 peter Exp $
34 */
35 #include <signal.h>
36 #include <errno.h>
37 #include <stdlib.h>
38 #ifdef _THREAD_SAFE
39 #include <pthread.h>
40 #include "pthread_private.h"
41
42 void
pthread_cleanup_push(void (* routine)(void *),void * routine_arg)43 pthread_cleanup_push(void (*routine) (void *), void *routine_arg)
44 {
45 struct pthread *curthread = _get_curthread();
46 struct pthread_cleanup *new;
47
48 if ((new = (struct pthread_cleanup *) malloc(sizeof(struct pthread_cleanup))) != NULL) {
49 new->routine = routine;
50 new->routine_arg = routine_arg;
51 new->next = curthread->cleanup;
52
53 curthread->cleanup = new;
54 }
55 }
56
57 void
pthread_cleanup_pop(int execute)58 pthread_cleanup_pop(int execute)
59 {
60 struct pthread *curthread = _get_curthread();
61 struct pthread_cleanup *old;
62
63 if ((old = curthread->cleanup) != NULL) {
64 curthread->cleanup = old->next;
65 if (execute) {
66 old->routine(old->routine_arg);
67 }
68 free(old);
69 }
70 }
71
72 #endif
73