1 /* $NetBSD: t_join.c,v 1.5 2010/11/30 18:38:54 joerg Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jukka Ruohonen. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: t_join.c,v 1.5 2010/11/30 18:38:54 joerg Exp $"); 33 34 #include <errno.h> 35 #include <pthread.h> 36 37 #include <atf-c.h> 38 39 #include "h_common.h" 40 41 #ifdef CHECK_STACK_ALIGNMENT 42 extern int check_stack_alignment(void); 43 #endif 44 45 static bool error; 46 47 static void *threadfunc1(void *); 48 static void *threadfunc2(void *); 49 50 ATF_TC(pthread_join); 51 ATF_TC_HEAD(pthread_join, tc) 52 { 53 54 atf_tc_set_md_var(tc, "descr", 55 "Checks basic error conditions in pthread_join(3)"); 56 } 57 58 ATF_TC_BODY(pthread_join, tc) 59 { 60 pthread_t thread; 61 62 PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc1, NULL)); 63 PTHREAD_REQUIRE(pthread_join(thread, NULL)); 64 } 65 66 static void * 67 threadfunc1(void *arg) 68 { 69 pthread_t thread[25]; 70 pthread_t caller; 71 void *val = NULL; 72 uintptr_t i; 73 int rv; 74 75 caller = pthread_self(); 76 77 #ifdef CHECK_STACK_ALIGNMENT 78 /* 79 * Check alignment of thread stack, if supported. 80 */ 81 ATF_REQUIRE(check_stack_alignment()); 82 #endif 83 84 /* 85 * The behavior is undefined, but should error 86 * out, if we try to join the calling thread. 87 */ 88 rv = pthread_join(caller, NULL); 89 90 /* 91 * The specification recommends EDEADLK. 92 */ 93 ATF_REQUIRE(rv != 0); 94 ATF_REQUIRE_EQ(rv, EDEADLK); 95 96 for (i = 0; i < __arraycount(thread); i++) { 97 98 error = true; 99 100 rv = pthread_create(&thread[i], NULL, threadfunc2, (void *)i); 101 102 ATF_REQUIRE_EQ(rv, 0); 103 104 /* 105 * Try to join an invalid thread. 106 */ 107 rv = pthread_join(thread[i + 1], NULL); 108 109 ATF_REQUIRE_EQ(rv, ESRCH); 110 111 /* 112 * Check join and exit condition. 113 */ 114 PTHREAD_REQUIRE(pthread_join(thread[i], &val)); 115 116 ATF_REQUIRE_EQ(error, false); 117 118 ATF_REQUIRE(val != NULL); 119 ATF_REQUIRE(val == (void *)(i + 1)); 120 121 /* 122 * Once the thread has returned, ESRCH should 123 * again follow if we try to join it again. 124 */ 125 rv = pthread_join(thread[i], NULL); 126 127 ATF_REQUIRE_EQ(rv, ESRCH); 128 129 /* 130 * Try to detach the exited thread. 131 */ 132 rv = pthread_detach(thread[i]); 133 134 ATF_REQUIRE(rv != 0); 135 } 136 137 pthread_exit(NULL); 138 139 return NULL; 140 } 141 142 static void * 143 threadfunc2(void *arg) 144 { 145 static uintptr_t i = 0; 146 uintptr_t j; 147 148 j = (uintptr_t)arg; 149 150 if (i++ == j) 151 error = false; 152 153 pthread_exit((void *)i); 154 155 return NULL; 156 } 157 158 ATF_TP_ADD_TCS(tp) 159 { 160 161 ATF_TP_ADD_TC(tp, pthread_join); 162 163 return atf_no_error(); 164 } 165