| 1 | /* |
| 2 | * Copyright (C) 2012 - Christian Babeux <christian.babeux@efficios.com> |
| 3 | * Copyright (C) 2014 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License, version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 51 |
| 16 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | */ |
| 18 | |
| 19 | #include <stdlib.h> |
| 20 | #include <string.h> |
| 21 | #include <pthread.h> |
| 22 | #include <unistd.h> |
| 23 | #include <urcu.h> |
| 24 | |
| 25 | #define STALL_TIME 60 |
| 26 | |
| 27 | /* |
| 28 | * Check if the specified environment variable is set. |
| 29 | * Return 1 if set, otherwise 0. |
| 30 | */ |
| 31 | static |
| 32 | int check_env_var(const char *env) |
| 33 | { |
| 34 | if (env) { |
| 35 | char *env_val = getenv(env); |
| 36 | if (env_val && (strncmp(env_val, "1", 1) == 0)) { |
| 37 | return 1; |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | return 0; |
| 42 | } |
| 43 | |
| 44 | static |
| 45 | void do_stall(void) |
| 46 | { |
| 47 | unsigned int sleep_time = STALL_TIME; |
| 48 | |
| 49 | while (sleep_time > 0) { |
| 50 | sleep_time = sleep(sleep_time); |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | /* Session daemon */ |
| 55 | |
| 56 | int __testpoint_sessiond_thread_manage_clients(void) |
| 57 | { |
| 58 | const char *var = "LTTNG_SESSIOND_THREAD_MANAGE_CLIENTS_STALL"; |
| 59 | |
| 60 | if (check_env_var(var)) { |
| 61 | do_stall(); |
| 62 | } |
| 63 | |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | int __testpoint_sessiond_thread_registration_apps(void) |
| 68 | { |
| 69 | const char *var = "LTTNG_SESSIOND_THREAD_REG_APPS_STALL"; |
| 70 | |
| 71 | if (check_env_var(var)) { |
| 72 | do_stall(); |
| 73 | } |
| 74 | |
| 75 | return 0; |
| 76 | } |
| 77 | |
| 78 | int __testpoint_sessiond_thread_manage_apps(void) |
| 79 | { |
| 80 | const char *var = "LTTNG_SESSIOND_THREAD_MANAGE_APPS_STALL"; |
| 81 | |
| 82 | if (check_env_var(var)) { |
| 83 | do_stall(); |
| 84 | } |
| 85 | |
| 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | int __testpoint_sessiond_thread_manage_kernel(void) |
| 90 | { |
| 91 | const char *var = "LTTNG_SESSIOND_THREAD_MANAGE_KERNEL_STALL"; |
| 92 | |
| 93 | if (check_env_var(var)) { |
| 94 | do_stall(); |
| 95 | } |
| 96 | |
| 97 | return 0; |
| 98 | } |
| 99 | |
| 100 | int __testpoint_sessiond_thread_manage_consumer(void) |
| 101 | { |
| 102 | const char *var = "LTTNG_SESSIOND_THREAD_MANAGE_CONSUMER_STALL"; |
| 103 | |
| 104 | if (check_env_var(var)) { |
| 105 | do_stall(); |
| 106 | } |
| 107 | |
| 108 | return 0; |
| 109 | } |
| 110 | |
| 111 | int __testpoint_sessiond_thread_ht_cleanup(void) |
| 112 | { |
| 113 | const char *var = "LTTNG_SESSIOND_THREAD_HT_CLEANUP_STALL"; |
| 114 | |
| 115 | if (check_env_var(var)) { |
| 116 | do_stall(); |
| 117 | } |
| 118 | |
| 119 | return 0; |
| 120 | } |
| 121 | |
| 122 | int __testpoint_sessiond_thread_app_manage_notify(void) |
| 123 | { |
| 124 | const char *var = "LTTNG_SESSIOND_THREAD_APP_MANAGE_NOTIFY_STALL"; |
| 125 | |
| 126 | if (check_env_var(var)) { |
| 127 | do_stall(); |
| 128 | } |
| 129 | |
| 130 | return 0; |
| 131 | } |
| 132 | |
| 133 | int __testpoint_sessiond_thread_app_reg_dispatch(void) |
| 134 | { |
| 135 | const char *var = "LTTNG_SESSIOND_THREAD_APP_REG_DISPATCH_STALL"; |
| 136 | |
| 137 | if (check_env_var(var)) { |
| 138 | do_stall(); |
| 139 | } |
| 140 | |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | /* Consumer daemon */ |
| 145 | |
| 146 | int __testpoint_consumerd_thread_channel(void) |
| 147 | { |
| 148 | const char *var = "LTTNG_CONSUMERD_THREAD_CHANNEL_STALL"; |
| 149 | |
| 150 | if (check_env_var(var)) { |
| 151 | do_stall(); |
| 152 | } |
| 153 | |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | int __testpoint_consumerd_thread_metadata(void) |
| 158 | { |
| 159 | const char *var = "LTTNG_CONSUMERD_THREAD_METADATA_STALL"; |
| 160 | |
| 161 | if (check_env_var(var)) { |
| 162 | do_stall(); |
| 163 | } |
| 164 | |
| 165 | return 0; |
| 166 | } |
| 167 | |
| 168 | int __testpoint_consumerd_thread_data(void) |
| 169 | { |
| 170 | const char *var = "LTTNG_CONSUMERD_THREAD_DATA_STALL"; |
| 171 | |
| 172 | if (check_env_var(var)) { |
| 173 | do_stall(); |
| 174 | } |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | int __testpoint_consumerd_thread_sessiond(void) |
| 180 | { |
| 181 | const char *var = "LTTNG_CONSUMERD_THREAD_SESSIOND_STALL"; |
| 182 | |
| 183 | if (check_env_var(var)) { |
| 184 | do_stall(); |
| 185 | } |
| 186 | |
| 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | int __testpoint_consumerd_thread_metadata_timer(void) |
| 191 | { |
| 192 | const char *var = "LTTNG_CONSUMERD_THREAD_METADATA_TIMER_STALL"; |
| 193 | |
| 194 | if (check_env_var(var)) { |
| 195 | do_stall(); |
| 196 | } |
| 197 | |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | /* Relay daemon */ |
| 202 | |
| 203 | int __testpoint_relayd_thread_dispatcher(void) |
| 204 | { |
| 205 | const char *var = "LTTNG_RELAYD_THREAD_DISPATCHER_STALL"; |
| 206 | |
| 207 | if (check_env_var(var)) { |
| 208 | do_stall(); |
| 209 | } |
| 210 | |
| 211 | return 0; |
| 212 | } |
| 213 | |
| 214 | int __testpoint_relayd_thread_worker(void) |
| 215 | { |
| 216 | const char *var = "LTTNG_RELAYD_THREAD_WORKER_STALL"; |
| 217 | |
| 218 | if (check_env_var(var)) { |
| 219 | do_stall(); |
| 220 | } |
| 221 | |
| 222 | return 0; |
| 223 | } |
| 224 | |
| 225 | int __testpoint_relayd_thread_listener(void) |
| 226 | { |
| 227 | const char *var = "LTTNG_RELAYD_THREAD_LISTENER_STALL"; |
| 228 | |
| 229 | if (check_env_var(var)) { |
| 230 | do_stall(); |
| 231 | } |
| 232 | |
| 233 | return 0; |
| 234 | } |
| 235 | |
| 236 | int __testpoint_relayd_thread_live_dispatcher(void) |
| 237 | { |
| 238 | const char *var = "LTTNG_RELAYD_THREAD_LIVE_DISPATCHER_STALL"; |
| 239 | |
| 240 | if (check_env_var(var)) { |
| 241 | do_stall(); |
| 242 | } |
| 243 | |
| 244 | return 0; |
| 245 | } |
| 246 | |
| 247 | int __testpoint_relayd_thread_live_worker(void) |
| 248 | { |
| 249 | const char *var = "LTTNG_RELAYD_THREAD_LIVE_WORKER_STALL"; |
| 250 | |
| 251 | if (check_env_var(var)) { |
| 252 | do_stall(); |
| 253 | } |
| 254 | |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | int __testpoint_relayd_thread_live_listener(void) |
| 259 | { |
| 260 | const char *var = "LTTNG_RELAYD_THREAD_LIVE_LISTENER_STALL"; |
| 261 | |
| 262 | if (check_env_var(var)) { |
| 263 | do_stall(); |
| 264 | } |
| 265 | |
| 266 | return 0; |
| 267 | } |