1 /* $OpenBSD: setjmp.c,v 1.3 2003/07/31 21:48:06 deraadt Exp $ */
2 /*
3 * Copyright (c) 1993, 1994, 1995, 1996 by Chris Provenzano and contributors,
4 * proven@mit.edu 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 Chris Provenzano,
17 * the University of California, Berkeley, and contributors.
18 * 4. Neither the name of Chris Provenzano, the University, nor the names of
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL CHRIS PROVENZANO, THE REGENTS OR
26 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <setjmp.h>
36 #include <stdlib.h>
37 #include "test.h"
38
39 int reached;
40
41 static void *
_jump(void * arg)42 _jump(void *arg)
43 {
44 jmp_buf foo;
45
46 reached = 0;
47 if (_setjmp(foo)) {
48 ASSERT(reached);
49 return NULL;
50 }
51 reached = 1;
52 _longjmp(foo, 1);
53 PANIC("_longjmp");
54 }
55
56 static void *
jump(void * arg)57 jump(void *arg)
58 {
59 jmp_buf foo;
60
61 reached = 0;
62 if (setjmp(foo)) {
63 ASSERT(reached);
64 return NULL;
65 }
66 reached = 1;
67 longjmp(foo, 1);
68 PANIC("longjmp");
69 }
70
71 int
main(int argc,char * argv[])72 main(int argc, char *argv[])
73 {
74 pthread_t child;
75 void *res;
76
77 printf("jumping in main thread\n");
78 (void)jump(NULL);
79 printf("_jumping in main thread\n");
80 (void)_jump(NULL);
81
82 printf("jumping in child thread\n");
83 CHECKr(pthread_create(&child, NULL, jump, NULL));
84 CHECKr(pthread_join(child, &res));
85
86 printf("_jumping in child thread\n");
87 CHECKr(pthread_create(&child, NULL, _jump, NULL));
88 CHECKr(pthread_join(child, &res));
89
90 SUCCEED;
91 }
92