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: stable/10/lib/libkse/thread/thr_clean.c 174689 2007-12-16 23:29:57Z deischen $
30 */
31
32 #include "namespace.h"
33 #include <signal.h>
34 #include <errno.h>
35 #include <stdlib.h>
36 #include <pthread.h>
37 #include "un-namespace.h"
38 #include "thr_private.h"
39
40 __weak_reference(_pthread_cleanup_push, pthread_cleanup_push);
41 __weak_reference(_pthread_cleanup_pop, pthread_cleanup_pop);
42
43 void
_pthread_cleanup_push(void (* routine)(void *),void * routine_arg)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 *)
50 malloc(sizeof(struct pthread_cleanup))) != NULL) {
51 new->routine = routine;
52 new->routine_arg = routine_arg;
53 new->onstack = 0;
54 new->next = curthread->cleanup;
55
56 curthread->cleanup = new;
57 }
58 }
59
60 void
_pthread_cleanup_pop(int execute)61 _pthread_cleanup_pop(int execute)
62 {
63 struct pthread *curthread = _get_curthread();
64 struct pthread_cleanup *old;
65
66 if ((old = curthread->cleanup) != NULL) {
67 curthread->cleanup = old->next;
68 if (execute) {
69 old->routine(old->routine_arg);
70 }
71 if (old->onstack == 0)
72 free(old);
73 }
74 }
75