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 * 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 * 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 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