1 /* $NetBSD: t_getenv_thread.c,v 1.1 2011/07/15 13:54:31 jruoho 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 Matthias Scheler. 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_getenv_thread.c,v 1.1 2011/07/15 13:54:31 jruoho Exp $"); 33 34 #include <atf-c.h> 35 #include <errno.h> 36 #include <pthread.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <time.h> 41 42 #define THREADED_NUM_THREADS 8 43 #define THREADED_NUM_VARS 16 44 #define THREADED_VAR_NAME "THREADED%zu" 45 #define THREADED_RUN_TIME 10 46 47 static void *thread_getenv_r(void *); 48 static void *thread_putenv(void *); 49 static void *thread_setenv(void *); 50 static void *thread_unsetenv(void *); 51 52 static void * 53 thread_getenv_r(void *arg) 54 { 55 time_t endtime; 56 57 endtime = *(time_t *)arg; 58 do { 59 size_t i; 60 char name[32], value[128]; 61 62 i = lrand48() % THREADED_NUM_VARS; 63 (void)snprintf(name, sizeof(name), THREADED_VAR_NAME, i); 64 65 if (getenv_r(name, value, sizeof(value)) == -1) { 66 ATF_CHECK(errno == ENOENT); 67 } 68 } while (time(NULL) < endtime); 69 70 return NULL; 71 } 72 73 74 static void * 75 thread_putenv(void *arg) 76 { 77 time_t endtime; 78 size_t i; 79 static char vars[THREADED_NUM_VARS][128]; 80 81 for (i = 0; i < THREADED_NUM_VARS; i++) { 82 (void)snprintf(vars[i], sizeof(vars[i]), 83 THREADED_VAR_NAME "=putenv %ld", i, lrand48()); 84 } 85 86 endtime = *(time_t *)arg; 87 do { 88 char name[128]; 89 90 i = lrand48() % THREADED_NUM_VARS; 91 (void)strlcpy(name, vars[i], sizeof(name)); 92 *strchr(name, '=') = '\0'; 93 94 ATF_CHECK(unsetenv(name) != -1); 95 ATF_CHECK(putenv(vars[i]) != -1); 96 } while (time(NULL) < endtime); 97 98 return NULL; 99 } 100 101 static void * 102 thread_setenv(void *arg) 103 { 104 time_t endtime; 105 106 endtime = *(time_t *)arg; 107 do { 108 size_t i; 109 char name[32], value[64]; 110 111 i = lrand48() % THREADED_NUM_VARS; 112 (void)snprintf(name, sizeof(name), THREADED_VAR_NAME, i); 113 (void)snprintf(value, sizeof(value), "setenv %ld", lrand48()); 114 115 ATF_CHECK(setenv(name, value, 1) != -1); 116 } while (time(NULL) < endtime); 117 118 return NULL; 119 } 120 121 static void * 122 thread_unsetenv(void *arg) 123 { 124 time_t endtime; 125 126 endtime = *(time_t *)arg; 127 do { 128 size_t i; 129 char name[32]; 130 131 i = lrand48() % THREADED_NUM_VARS; 132 (void)snprintf(name, sizeof(name), THREADED_VAR_NAME, i); 133 134 ATF_CHECK(unsetenv(name) != -1); 135 } while (time(NULL) < endtime); 136 137 return NULL; 138 } 139 140 ATF_TC(getenv_r_thread); 141 ATF_TC_HEAD(getenv_r_thread, tc) 142 { 143 char timeout[32]; 144 145 atf_tc_set_md_var(tc, "descr", "Test getenv_r(3) with threads"); 146 147 (void)snprintf(timeout, sizeof(timeout), "%d", THREADED_RUN_TIME + 5); 148 149 atf_tc_set_md_var(tc, "timeout", timeout); 150 } 151 152 ATF_TC_BODY(getenv_r_thread, tc) 153 { 154 pthread_t threads[THREADED_NUM_THREADS]; 155 time_t endtime; 156 size_t i, j; 157 158 endtime = time(NULL) + THREADED_RUN_TIME; 159 160 for (i = j = 0; j < 2; j++) { 161 162 ATF_CHECK(pthread_create(&threads[i++], NULL, thread_getenv_r, 163 &endtime) == 0); 164 } 165 166 for (j = 0; j < i; j++) 167 ATF_CHECK(pthread_join(threads[j], NULL) == 0); 168 } 169 170 ATF_TC(putenv_thread); 171 ATF_TC_HEAD(putenv_thread, tc) 172 { 173 char timeout[32]; 174 175 atf_tc_set_md_var(tc, "descr", "Test concurrent access by putenv(3)"); 176 177 (void)snprintf(timeout, sizeof(timeout), "%d", THREADED_RUN_TIME + 5); 178 179 atf_tc_set_md_var(tc, "timeout", timeout); 180 } 181 182 ATF_TC_BODY(putenv_thread, tc) 183 { 184 pthread_t threads[THREADED_NUM_THREADS]; 185 time_t endtime; 186 size_t i, j; 187 188 endtime = time(NULL) + THREADED_RUN_TIME; 189 190 for (i = j = 0; j < 2; j++) { 191 192 ATF_CHECK(pthread_create(&threads[i++], NULL, thread_putenv, 193 &endtime) == 0); 194 } 195 196 for (j = 0; j < i; j++) 197 ATF_CHECK(pthread_join(threads[j], NULL) == 0); 198 } 199 200 ATF_TC(setenv_thread); 201 ATF_TC_HEAD(setenv_thread, tc) 202 { 203 char timeout[32]; 204 205 atf_tc_set_md_var(tc, "descr", "Test concurrent access by setenv(3)"); 206 207 (void)snprintf(timeout, sizeof(timeout), "%d", THREADED_RUN_TIME + 5); 208 209 atf_tc_set_md_var(tc, "timeout", timeout); 210 } 211 212 ATF_TC_BODY(setenv_thread, tc) 213 { 214 pthread_t threads[THREADED_NUM_THREADS]; 215 time_t endtime; 216 size_t i, j; 217 218 endtime = time(NULL) + THREADED_RUN_TIME; 219 220 for (i = j = 0; j < 2; j++) { 221 222 ATF_CHECK(pthread_create(&threads[i++], NULL, thread_setenv, 223 &endtime) == 0); 224 } 225 226 for (j = 0; j < i; j++) 227 ATF_CHECK(pthread_join(threads[j], NULL) == 0); 228 } 229 230 ATF_TC(unsetenv_thread); 231 ATF_TC_HEAD(unsetenv_thread, tc) 232 { 233 char timeout[32]; 234 235 atf_tc_set_md_var(tc, "descr", "Test unsetenv(3) with threads"); 236 237 (void)snprintf(timeout, sizeof(timeout), "%d", THREADED_RUN_TIME + 5); 238 239 atf_tc_set_md_var(tc, "timeout", timeout); 240 } 241 242 ATF_TC_BODY(unsetenv_thread, tc) 243 { 244 pthread_t threads[THREADED_NUM_THREADS]; 245 time_t endtime; 246 size_t i, j; 247 248 endtime = time(NULL) + THREADED_RUN_TIME; 249 250 for (i = j = 0; j < 2; j++) { 251 252 ATF_CHECK(pthread_create(&threads[i++], NULL, thread_unsetenv, 253 &endtime) == 0); 254 } 255 256 for (j = 0; j < i; j++) 257 ATF_CHECK(pthread_join(threads[j], NULL) == 0); 258 } 259 260 ATF_TP_ADD_TCS(tp) 261 { 262 263 ATF_TP_ADD_TC(tp, getenv_r_thread); 264 ATF_TP_ADD_TC(tp, putenv_thread); 265 ATF_TP_ADD_TC(tp, setenv_thread); 266 ATF_TP_ADD_TC(tp, unsetenv_thread); 267 268 return atf_no_error(); 269 } 270