1 /* $NetBSD: t_join.c,v 1.4 2010/07/29 12:56:16 hans 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 1.4 2010/07/29 12:56:16 hans Exp $"); 33 34 #include <errno.h> 35 #include <pthread.h> 36 37 #include <atf-c.h> 38 39 #include "h_common.h" 40 41 static bool error; 42 43 static void *threadfunc1(void *); 44 static void *threadfunc2(void *); 45 46 ATF_TC(pthread_join); 47 ATF_TC_HEAD(pthread_join, tc) 48 { 49 50 atf_tc_set_md_var(tc, "descr", 51 "Checks basic error conditions in pthread_join(3)"); 52 } 53 54 ATF_TC_BODY(pthread_join, tc) 55 { 56 pthread_t thread; 57 58 PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc1, NULL)); 59 PTHREAD_REQUIRE(pthread_join(thread, NULL)); 60 } 61 62 static void * 63 threadfunc1(void *arg) 64 { 65 pthread_t thread[25]; 66 pthread_t caller; 67 void *val = NULL; 68 uintptr_t i; 69 int rv; 70 71 caller = pthread_self(); 72 73 /* 74 * The behavior is undefined, but should error 75 * out, if we try to join the calling thread. 76 */ 77 rv = pthread_join(caller, NULL); 78 79 /* 80 * The specification recommends EDEADLK. 81 */ 82 ATF_REQUIRE(rv != 0); 83 ATF_REQUIRE_EQ(rv, EDEADLK); 84 85 for (i = 0; i < __arraycount(thread); i++) { 86 87 error = true; 88 89 rv = pthread_create(&thread[i], NULL, threadfunc2, (void *)i); 90 91 ATF_REQUIRE_EQ(rv, 0); 92 93 /* 94 * Try to join an invalid thread. 95 */ 96 rv = pthread_join(thread[i + 1], NULL); 97 98 ATF_REQUIRE_EQ(rv, ESRCH); 99 100 /* 101 * Check join and exit condition. 102 */ 103 PTHREAD_REQUIRE(pthread_join(thread[i], &val)); 104 105 ATF_REQUIRE_EQ(error, false); 106 107 ATF_REQUIRE(val != NULL); 108 ATF_REQUIRE(val == (void *)(i + 1)); 109 110 /* 111 * Once the thread has returned, ESRCH should 112 * again follow if we try to join it again. 113 */ 114 rv = pthread_join(thread[i], NULL); 115 116 ATF_REQUIRE_EQ(rv, ESRCH); 117 118 /* 119 * Try to detach the exited thread. 120 */ 121 rv = pthread_detach(thread[i]); 122 123 ATF_REQUIRE(rv != 0); 124 } 125 126 pthread_exit(NULL); 127 128 return NULL; 129 } 130 131 static void * 132 threadfunc2(void *arg) 133 { 134 static uintptr_t i = 0; 135 uintptr_t j; 136 137 j = (uintptr_t)arg; 138 139 if (i++ == j) 140 error = false; 141 142 pthread_exit((void *)i); 143 144 return NULL; 145 } 146 147 ATF_TP_ADD_TCS(tp) 148 { 149 150 ATF_TP_ADD_TC(tp, pthread_join); 151 152 return atf_no_error(); 153 } 154