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