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. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: src/lib/libpthread/thread/thr_clean.c,v 1.9 2004/12/18 18:07:37 deischen Exp $
30 */
31
32 #include "namespace.h"
33 #include <machine/tls.h>
34 #include <errno.h>
35 #include <stdlib.h>
36 #include <pthread.h>
37 #include "un-namespace.h"
38
39 #include "thr_private.h"
40
41 void
_pthread_cleanup_push(void (* routine)(void *),void * routine_arg)42 _pthread_cleanup_push(void (*routine) (void *), void *routine_arg)
43 {
44 pthread_t curthread = tls_get_curthread();
45 struct pthread_cleanup *new;
46
47 new = __malloc(sizeof(struct pthread_cleanup));
48 if (new != NULL) {
49 new->routine = routine;
50 new->routine_arg = routine_arg;
51 new->onstack = 0;
52 new->next = curthread->cleanup;
53
54 curthread->cleanup = new;
55 }
56 }
57
58 void
_pthread_cleanup_pop(int execute)59 _pthread_cleanup_pop(int execute)
60 {
61 pthread_t curthread = tls_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 if (old->onstack == 0)
70 __free(old);
71 }
72 }
73
74 __strong_reference(_pthread_cleanup_push, pthread_cleanup_push);
75 __strong_reference(_pthread_cleanup_pop, pthread_cleanup_pop);
76