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 * $FreeBSD$
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
39#include "thr_private.h"
40
41#undef pthread_cleanup_push
42#undef pthread_cleanup_pop
43
44/* old binary compatible interfaces */
45__weak_reference(_pthread_cleanup_push, pthread_cleanup_push);
46__weak_reference(_pthread_cleanup_pop, pthread_cleanup_pop);
47
48void
49__pthread_cleanup_push_imp(void (*routine)(void *), void *arg,
50	struct _pthread_cleanup_info *info)
51{
52	struct pthread	*curthread = _get_curthread();
53	struct pthread_cleanup *newbuf;
54
55	newbuf = (void *)info;
56	newbuf->routine = routine;
57	newbuf->routine_arg = arg;
58	newbuf->onheap = 0;
59	newbuf->prev = curthread->cleanup;
60	curthread->cleanup = newbuf;
61}
62
63void
64__pthread_cleanup_pop_imp(int execute)
65{
66	struct pthread	*curthread = _get_curthread();
67	struct pthread_cleanup *old;
68
69	if ((old = curthread->cleanup) != NULL) {
70		curthread->cleanup = old->prev;
71		if (execute)
72			old->routine(old->routine_arg);
73		if (old->onheap)
74			free(old);
75	}
76}
77
78void
79_pthread_cleanup_push(void (*routine) (void *), void *arg)
80{
81	struct pthread	*curthread = _get_curthread();
82	struct pthread_cleanup *newbuf;
83#ifdef _PTHREAD_FORCED_UNWIND
84	curthread->unwind_disabled = 1;
85#endif
86	if ((newbuf = (struct pthread_cleanup *)
87	    malloc(sizeof(struct pthread_cleanup))) != NULL) {
88		newbuf->routine = routine;
89		newbuf->routine_arg = arg;
90		newbuf->onheap = 1;
91		newbuf->prev = curthread->cleanup;
92		curthread->cleanup = newbuf;
93	}
94}
95
96void
97_pthread_cleanup_pop(int execute)
98{
99	__pthread_cleanup_pop_imp(execute);
100}
101