1 /* $NetBSD: t_join.c,v 1.8 2012/03/12 20:17:16 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 1.8 2012/03/12 20:17:16 joerg Exp $"); 33 34 #include <errno.h> 35 #include <pthread.h> 36 #include <stdint.h> 37 38 #include <atf-c.h> 39 40 #ifdef __FreeBSD__ 41 #include <pthread_np.h> 42 #endif 43 44 #include "h_common.h" 45 46 #ifdef CHECK_STACK_ALIGNMENT 47 extern int check_stack_alignment(void); 48 #endif 49 50 #define STACKSIZE 65536 51 52 static bool error; 53 54 static void *threadfunc1(void *); 55 static void *threadfunc2(void *); 56 57 ATF_TC(pthread_join); 58 ATF_TC_HEAD(pthread_join, tc) 59 { 60 61 atf_tc_set_md_var(tc, "descr", 62 "Checks basic error conditions in pthread_join(3)"); 63 } 64 65 ATF_TC_BODY(pthread_join, tc) 66 { 67 pthread_t thread; 68 69 PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc1, NULL)); 70 PTHREAD_REQUIRE(pthread_join(thread, NULL)); 71 } 72 73 static void * 74 threadfunc1(void *arg) 75 { 76 pthread_t thread[25]; 77 pthread_t caller; 78 void *val = NULL; 79 uintptr_t i; 80 int rv; 81 pthread_attr_t attr; 82 83 caller = pthread_self(); 84 85 #ifdef CHECK_STACK_ALIGNMENT 86 /* 87 * Check alignment of thread stack, if supported. 88 */ 89 ATF_REQUIRE(check_stack_alignment()); 90 #endif 91 92 /* 93 * The behavior is undefined, but should error 94 * out, if we try to join the calling thread. 95 */ 96 rv = pthread_join(caller, NULL); 97 98 /* 99 * The specification recommends EDEADLK. 100 */ 101 ATF_REQUIRE(rv != 0); 102 ATF_REQUIRE_EQ(rv, EDEADLK); 103 104 ATF_REQUIRE(pthread_attr_init(&attr) == 0); 105 106 for (i = 0; i < __arraycount(thread); i++) { 107 108 error = true; 109 110 ATF_REQUIRE(pthread_attr_setstacksize(&attr, STACKSIZE * (i + 1)) == 0); 111 112 rv = pthread_create(&thread[i], &attr, threadfunc2, (void *)i); 113 114 ATF_REQUIRE_EQ(rv, 0); 115 116 /* 117 * Check join and exit condition. 118 */ 119 PTHREAD_REQUIRE(pthread_join(thread[i], &val)); 120 121 ATF_REQUIRE_EQ(error, false); 122 123 ATF_REQUIRE(val != NULL); 124 ATF_REQUIRE(val == (void *)(i + 1)); 125 126 /* 127 * Once the thread has returned, ESRCH should 128 * again follow if we try to join it again. 129 */ 130 rv = pthread_join(thread[i], NULL); 131 132 ATF_REQUIRE_EQ(rv, ESRCH); 133 134 /* 135 * Try to detach the exited thread. 136 */ 137 rv = pthread_detach(thread[i]); 138 139 ATF_REQUIRE(rv != 0); 140 } 141 142 ATF_REQUIRE(pthread_attr_destroy(&attr) == 0); 143 144 pthread_exit(NULL); 145 146 return NULL; 147 } 148 149 static void * 150 threadfunc2(void *arg) 151 { 152 static uintptr_t i = 0; 153 uintptr_t j; 154 pthread_attr_t attr; 155 size_t stacksize; 156 157 j = (uintptr_t)arg; 158 159 #ifdef __FreeBSD__ 160 pthread_attr_init(&attr); 161 #endif 162 ATF_REQUIRE(pthread_attr_get_np(pthread_self(), &attr) == 0); 163 ATF_REQUIRE(pthread_attr_getstacksize(&attr, &stacksize) == 0); 164 ATF_REQUIRE(stacksize == STACKSIZE * (j + 1)); 165 ATF_REQUIRE(pthread_attr_destroy(&attr) == 0); 166 167 if (i++ == j) 168 error = false; 169 170 pthread_exit((void *)i); 171 172 return NULL; 173 } 174 175 ATF_TP_ADD_TCS(tp) 176 { 177 178 ATF_TP_ADD_TC(tp, pthread_join); 179 180 return atf_no_error(); 181 } 182