Mercurial > hg > nginx
annotate src/os/win32/ngx_process_cycle.c @ 2922:f0604d0b28a6
*) exit if no workers could not be started
*) do not quit old workers if no new workers could not be started
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Sat, 06 Jun 2009 12:36:44 +0000 |
| parents | e7278e647f1a |
| children | 7b68caedea01 |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
| 461 | 10 #include <nginx.h> |
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12 |
| 2725 | 13 static void ngx_process_init(ngx_cycle_t *cycle); |
| 14 static void ngx_console_init(ngx_cycle_t *cycle); | |
| 15 static int __stdcall ngx_console_handler(u_long type); | |
| 16 static ngx_int_t ngx_create_events(ngx_cycle_t *cycle); | |
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17 static ngx_int_t ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type); |
| 2725 | 18 static void ngx_reopen_worker_processes(ngx_cycle_t *cycle); |
| 19 static void ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old); | |
| 20 static void ngx_terminate_worker_processes(ngx_cycle_t *cycle); | |
| 21 static ngx_uint_t ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h); | |
| 22 static void ngx_master_process_exit(ngx_cycle_t *cycle); | |
| 23 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn); | |
| 24 static void ngx_worker_process_exit(ngx_cycle_t *cycle); | |
| 25 static ngx_thread_value_t __stdcall ngx_worker_thread(void *data); | |
| 26 static ngx_thread_value_t __stdcall ngx_cache_manager_thread(void *data); | |
| 27 static void ngx_cache_manager_process_handler(void); | |
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29 |
| 2725 | 30 ngx_uint_t ngx_process; |
| 31 ngx_pid_t ngx_pid; | |
| 32 ngx_uint_t ngx_threaded; | |
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33 |
| 2725 | 34 ngx_uint_t ngx_inherited; |
| 35 ngx_pid_t ngx_new_binary; | |
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36 |
| 2725 | 37 sig_atomic_t ngx_terminate; |
| 38 sig_atomic_t ngx_quit; | |
| 39 sig_atomic_t ngx_reopen; | |
| 40 sig_atomic_t ngx_reconfigure; | |
| 41 ngx_uint_t ngx_exiting; | |
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43 |
| 2725 | 44 HANDLE ngx_master_process_event; |
| 45 char ngx_master_process_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 46 | |
| 47 static HANDLE ngx_stop_event; | |
| 48 static char ngx_stop_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 49 static HANDLE ngx_quit_event; | |
| 50 static char ngx_quit_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 51 static HANDLE ngx_reopen_event; | |
| 52 static char ngx_reopen_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 53 static HANDLE ngx_reload_event; | |
| 54 static char ngx_reload_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 55 | |
| 56 HANDLE ngx_cache_manager_mutex; | |
| 57 char ngx_cache_manager_mutex_name[NGX_PROCESS_SYNC_NAME]; | |
| 58 HANDLE ngx_cache_manager_event; | |
| 461 | 59 |
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60 |
| 509 | 61 void |
| 62 ngx_master_process_cycle(ngx_cycle_t *cycle) | |
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63 { |
| 2725 | 64 u_long nev, ev, timeout; |
| 65 ngx_err_t err; | |
| 66 ngx_int_t n; | |
| 67 ngx_msec_t timer; | |
| 68 ngx_uint_t live; | |
| 69 HANDLE events[MAXIMUM_WAIT_OBJECTS]; | |
| 70 | |
| 71 ngx_process_init(cycle); | |
| 72 | |
| 73 ngx_sprintf((u_char *) ngx_master_process_event_name, | |
| 74 "ngx_master_%s%Z", ngx_unique); | |
| 75 | |
| 76 if (ngx_process == NGX_PROCESS_WORKER) { | |
| 77 ngx_worker_process_cycle(cycle, ngx_master_process_event_name); | |
| 78 return; | |
| 79 } | |
| 80 | |
| 81 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "master started"); | |
| 82 | |
| 83 ngx_console_init(cycle); | |
| 84 | |
| 85 SetEnvironmentVariable("ngx_unique", ngx_unique); | |
| 86 | |
| 87 ngx_master_process_event = CreateEvent(NULL, 1, 0, | |
| 88 ngx_master_process_event_name); | |
| 89 if (ngx_master_process_event == NULL) { | |
| 90 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 91 "CreateEvent(\"%s\") failed", | |
| 92 ngx_master_process_event_name); | |
| 93 exit(2); | |
| 94 } | |
| 95 | |
| 96 if (ngx_create_events(cycle) != NGX_OK) { | |
| 97 exit(2); | |
| 98 } | |
| 99 | |
| 100 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
| 101 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
| 102 | |
| 103 ngx_cache_manager_mutex = CreateMutex(NULL, 0, | |
| 104 ngx_cache_manager_mutex_name); | |
| 105 if (ngx_cache_manager_mutex == NULL) { | |
| 106 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 107 "CreateMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
| 108 exit(2); | |
| 109 } | |
| 110 | |
| 111 | |
| 112 events[0] = ngx_stop_event; | |
| 113 events[1] = ngx_quit_event; | |
| 114 events[2] = ngx_reopen_event; | |
| 115 events[3] = ngx_reload_event; | |
| 116 | |
| 117 ngx_close_listening_sockets(cycle); | |
| 118 | |
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119 if (ngx_start_worker_processes(cycle, NGX_PROCESS_RESPAWN) == 0) { |
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120 exit(2); |
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121 } |
| 2725 | 122 |
| 123 timer = 0; | |
| 124 timeout = INFINITE; | |
| 125 | |
| 126 for ( ;; ) { | |
| 127 | |
| 128 nev = 4; | |
| 129 for (n = 0; n < ngx_last_process; n++) { | |
| 130 if (ngx_processes[n].handle) { | |
| 131 events[nev++] = ngx_processes[n].handle; | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 if (timer) { | |
| 136 timeout = timer > ngx_current_msec ? timer - ngx_current_msec : 0; | |
| 137 } | |
| 138 | |
| 139 ev = WaitForMultipleObjects(nev, events, 0, timeout); | |
| 140 | |
| 141 err = ngx_errno; | |
| 142 ngx_time_update(0, 0); | |
| 143 | |
| 144 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 145 "master WaitForMultipleObjects: %ul", ev); | |
| 146 | |
| 147 if (ev == WAIT_OBJECT_0) { | |
| 148 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
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149 |
| 2725 | 150 if (ResetEvent(ngx_stop_event) == 0) { |
| 151 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 152 "ResetEvent(\"%s\") failed", ngx_stop_event_name); | |
| 153 } | |
| 154 | |
| 155 if (timer == 0) { | |
| 156 timer = ngx_current_msec + 5000; | |
| 157 } | |
| 158 | |
| 159 ngx_terminate = 1; | |
| 160 ngx_quit_worker_processes(cycle, 0); | |
| 161 | |
| 162 continue; | |
| 163 } | |
| 164 | |
| 165 if (ev == WAIT_OBJECT_0 + 1) { | |
| 166 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "shutting down"); | |
| 167 | |
| 168 if (ResetEvent(ngx_quit_event) == 0) { | |
| 169 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 170 "ResetEvent(\"%s\") failed", ngx_quit_event_name); | |
| 171 } | |
| 172 | |
| 173 ngx_quit = 1; | |
| 174 ngx_quit_worker_processes(cycle, 0); | |
| 175 | |
| 176 continue; | |
| 177 } | |
| 178 | |
| 179 if (ev == WAIT_OBJECT_0 + 2) { | |
| 180 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs"); | |
| 181 | |
| 182 if (ResetEvent(ngx_reopen_event) == 0) { | |
| 183 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 184 "ResetEvent(\"%s\") failed", | |
| 185 ngx_reopen_event_name); | |
| 186 } | |
| 187 | |
| 188 ngx_reopen_files(cycle, -1); | |
| 189 ngx_reopen_worker_processes(cycle); | |
| 190 | |
| 191 continue; | |
| 192 } | |
| 193 | |
| 194 if (ev == WAIT_OBJECT_0 + 3) { | |
| 195 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring"); | |
| 196 | |
| 197 if (ResetEvent(ngx_reload_event) == 0) { | |
| 198 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 199 "ResetEvent(\"%s\") failed", | |
| 200 ngx_reload_event_name); | |
| 201 } | |
| 202 | |
| 2823 | 203 cycle = ngx_init_cycle(cycle); |
| 204 if (cycle == NULL) { | |
| 205 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 206 continue; | |
| 207 } | |
| 208 | |
| 209 ngx_cycle = cycle; | |
| 210 | |
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211 if (ngx_start_worker_processes(cycle, NGX_PROCESS_JUST_RESPAWN)) { |
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212 ngx_quit_worker_processes(cycle, 1); |
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213 } |
| 2725 | 214 |
| 215 continue; | |
| 216 } | |
| 217 | |
| 218 if (ev > WAIT_OBJECT_0 + 3 && ev < WAIT_OBJECT_0 + nev) { | |
| 219 | |
| 220 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "reap worker"); | |
| 221 | |
| 222 live = ngx_reap_worker(cycle, events[ev]); | |
| 223 | |
| 224 if (!live && (ngx_terminate || ngx_quit)) { | |
| 225 ngx_master_process_exit(cycle); | |
| 226 } | |
| 227 | |
| 228 continue; | |
| 229 } | |
| 230 | |
| 231 if (ev == WAIT_TIMEOUT) { | |
| 232 ngx_terminate_worker_processes(cycle); | |
| 233 | |
| 234 ngx_master_process_exit(cycle); | |
| 235 } | |
| 236 | |
| 237 if (ev == WAIT_FAILED) { | |
| 238 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 239 "WaitForMultipleObjects() failed"); | |
| 240 | |
| 241 continue; | |
| 242 } | |
| 243 | |
| 244 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 245 "WaitForMultipleObjects() returned unexpected value %ul", ev); | |
| 246 } | |
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247 } |
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248 |
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249 |
| 2725 | 250 static void |
| 251 ngx_process_init(ngx_cycle_t *cycle) | |
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252 { |
| 461 | 253 ngx_err_t err; |
| 254 ngx_core_conf_t *ccf; | |
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255 |
| 461 | 256 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| 257 | |
| 2627 | 258 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle) |
| 259 != NGX_OK) | |
| 577 | 260 { |
| 461 | 261 /* fatal */ |
| 262 exit(2); | |
| 263 } | |
| 264 | |
| 265 err = ngx_thread_key_create(&ngx_core_tls_key); | |
| 266 if (err != 0) { | |
| 267 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 268 ngx_thread_key_create_n " failed"); | |
| 269 /* fatal */ | |
| 270 exit(2); | |
| 271 } | |
| 2725 | 272 } |
| 461 | 273 |
| 2725 | 274 |
| 275 static void | |
| 276 ngx_console_init(ngx_cycle_t *cycle) | |
| 277 { | |
| 278 ngx_core_conf_t *ccf; | |
| 279 | |
| 280 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
| 281 | |
| 282 if (ccf->daemon) { | |
| 283 if (FreeConsole() == 0) { | |
| 284 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 285 "FreeConsole() failed"); | |
| 286 } | |
| 287 | |
| 288 return; | |
| 289 } | |
| 290 | |
| 291 if (SetConsoleCtrlHandler(ngx_console_handler, 1) == 0) { | |
| 292 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 293 "SetConsoleCtrlHandler() failed"); | |
| 294 } | |
| 295 } | |
| 296 | |
| 297 | |
| 298 static int __stdcall | |
| 299 ngx_console_handler(u_long type) | |
| 300 { | |
| 301 char *msg; | |
| 302 | |
| 303 switch (type) { | |
| 304 | |
| 305 case CTRL_C_EVENT: | |
| 306 msg = "Ctrl-C pressed, exiting"; | |
| 307 break; | |
| 308 | |
| 309 case CTRL_BREAK_EVENT: | |
| 310 msg = "Ctrl-Break pressed, exiting"; | |
| 311 break; | |
| 312 | |
| 313 case CTRL_CLOSE_EVENT: | |
| 314 msg = "console closing, exiting"; | |
| 315 break; | |
| 316 | |
| 317 case CTRL_LOGOFF_EVENT: | |
| 318 msg = "user logs off, exiting"; | |
| 319 break; | |
| 320 | |
| 321 default: | |
| 322 return 0; | |
| 323 } | |
| 324 | |
| 325 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, msg); | |
| 326 | |
| 327 if (ngx_stop_event == NULL) { | |
| 328 return 1; | |
| 329 } | |
| 330 | |
| 331 if (SetEvent(ngx_stop_event) == 0) { | |
| 332 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
| 333 "SetEvent(\"%s\") failed", ngx_stop_event_name); | |
| 2627 | 334 } |
| 335 | |
| 2725 | 336 return 1; |
| 337 } | |
| 338 | |
| 339 | |
| 340 static ngx_int_t | |
| 341 ngx_create_events(ngx_cycle_t *cycle) | |
| 342 { | |
| 343 ngx_sprintf((u_char *) ngx_stop_event_name, "ngx_stop_%s%Z", ngx_unique); | |
| 344 | |
| 345 ngx_stop_event = CreateEvent(NULL, 1, 0, ngx_stop_event_name); | |
| 346 if (ngx_stop_event == NULL) { | |
| 347 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 348 "CreateEvent(\"%s\") failed", ngx_stop_event_name); | |
| 349 return NGX_ERROR; | |
| 350 } | |
| 351 | |
| 352 | |
| 353 ngx_sprintf((u_char *) ngx_quit_event_name, "ngx_quit_%s%Z", ngx_unique); | |
| 354 | |
| 355 ngx_quit_event = CreateEvent(NULL, 1, 0, ngx_quit_event_name); | |
| 356 if (ngx_quit_event == NULL) { | |
| 357 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 358 "CreateEvent(\"%s\") failed", ngx_quit_event_name); | |
| 359 return NGX_ERROR; | |
| 360 } | |
| 361 | |
| 362 | |
| 363 ngx_sprintf((u_char *) ngx_reopen_event_name, | |
| 364 "ngx_reopen_%s%Z", ngx_unique); | |
| 365 | |
| 366 ngx_reopen_event = CreateEvent(NULL, 1, 0, ngx_reopen_event_name); | |
| 367 if (ngx_reopen_event == NULL) { | |
| 368 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 369 "CreateEvent(\"%s\") failed", ngx_reopen_event_name); | |
| 370 return NGX_ERROR; | |
| 371 } | |
| 372 | |
| 373 | |
| 374 ngx_sprintf((u_char *) ngx_reload_event_name, | |
| 375 "ngx_reload_%s%Z", ngx_unique); | |
| 376 | |
| 377 ngx_reload_event = CreateEvent(NULL, 1, 0, ngx_reload_event_name); | |
| 378 if (ngx_reload_event == NULL) { | |
| 379 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 380 "CreateEvent(\"%s\") failed", ngx_reload_event_name); | |
| 381 return NGX_ERROR; | |
| 382 } | |
| 383 | |
| 384 return NGX_OK; | |
| 385 } | |
| 386 | |
| 387 | |
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388 static ngx_int_t |
| 2725 | 389 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type) |
| 390 { | |
| 391 ngx_int_t n; | |
| 392 ngx_core_conf_t *ccf; | |
| 393 | |
| 394 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes"); | |
| 395 | |
| 396 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
| 397 | |
| 398 for (n = 0; n < ccf->worker_processes; n++) { | |
| 399 if (ngx_spawn_process(cycle, "worker", type) == NGX_INVALID_PID) { | |
|
2922
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*) exit if no workers could not be started
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parents:
2921
diff
changeset
|
400 break; |
| 2725 | 401 } |
| 402 } | |
|
2922
f0604d0b28a6
*) exit if no workers could not be started
Igor Sysoev <igor@sysoev.ru>
parents:
2921
diff
changeset
|
403 |
|
f0604d0b28a6
*) exit if no workers could not be started
Igor Sysoev <igor@sysoev.ru>
parents:
2921
diff
changeset
|
404 return n; |
| 2627 | 405 } |
| 406 | |
| 407 | |
| 2725 | 408 static void |
| 409 ngx_reopen_worker_processes(ngx_cycle_t *cycle) | |
| 410 { | |
| 411 ngx_int_t n; | |
| 412 | |
| 413 for (n = 0; n < ngx_last_process; n++) { | |
| 414 | |
| 415 if (ngx_processes[n].handle == NULL) { | |
| 416 continue; | |
| 417 } | |
| 418 | |
| 419 if (SetEvent(ngx_processes[n].reopen) == 0) { | |
| 420 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 421 "SetEvent(\"%s\") failed", | |
| 422 ngx_processes[n].reopen_event); | |
| 423 } | |
| 424 } | |
| 425 } | |
| 426 | |
| 427 | |
| 428 static void | |
| 429 ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old) | |
| 2627 | 430 { |
| 2725 | 431 ngx_int_t n; |
| 432 | |
| 433 for (n = 0; n < ngx_last_process; n++) { | |
| 434 | |
| 435 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 2921 | 436 "process: %d %P %p e:%d j:%d", |
| 2725 | 437 n, |
| 438 ngx_processes[n].pid, | |
| 439 ngx_processes[n].handle, | |
| 440 ngx_processes[n].exiting, | |
| 441 ngx_processes[n].just_respawn); | |
| 442 | |
| 443 if (old && ngx_processes[n].just_respawn) { | |
| 444 ngx_processes[n].just_respawn = 0; | |
| 445 continue; | |
| 446 } | |
| 447 | |
| 448 if (ngx_processes[n].handle == NULL) { | |
| 449 continue; | |
| 450 } | |
| 451 | |
| 452 if (SetEvent(ngx_processes[n].quit) == 0) { | |
| 453 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 454 "SetEvent(\"%s\") failed", | |
| 455 ngx_processes[n].quit_event); | |
| 456 } | |
| 457 | |
| 458 ngx_processes[n].exiting = 1; | |
| 459 } | |
| 460 } | |
| 461 | |
| 462 | |
| 463 static void | |
| 464 ngx_terminate_worker_processes(ngx_cycle_t *cycle) | |
| 465 { | |
| 466 ngx_int_t n; | |
| 467 | |
| 468 for (n = 0; n < ngx_last_process; n++) { | |
| 469 | |
| 470 if (ngx_processes[n].handle == NULL) { | |
| 471 continue; | |
| 472 } | |
| 473 | |
| 474 if (TerminateProcess(ngx_processes[n].handle, 0) == 0) { | |
| 475 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 476 "TerminateProcess(\"%p\") failed", | |
| 477 ngx_processes[n].handle); | |
| 478 } | |
| 479 | |
| 480 ngx_processes[n].exiting = 1; | |
| 2627 | 481 |
| 2725 | 482 ngx_close_handle(ngx_processes[n].reopen); |
| 483 ngx_close_handle(ngx_processes[n].quit); | |
| 484 ngx_close_handle(ngx_processes[n].term); | |
| 485 ngx_close_handle(ngx_processes[n].handle); | |
| 486 } | |
| 487 } | |
| 488 | |
| 489 | |
| 490 static ngx_uint_t | |
| 491 ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h) | |
| 492 { | |
| 493 u_long code; | |
| 494 ngx_int_t n; | |
| 495 | |
| 496 for (n = 0; n < ngx_last_process; n++) { | |
| 497 | |
| 498 if (ngx_processes[n].handle != h) { | |
| 499 continue; | |
| 500 } | |
| 501 | |
| 502 if (GetExitCodeProcess(h, &code) == 0) { | |
|
2908
234a8248812c
log GetExitCodeProcess()'s errno
Igor Sysoev <igor@sysoev.ru>
parents:
2823
diff
changeset
|
503 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| 2725 | 504 "GetExitCodeProcess(%P) failed", |
| 505 ngx_processes[n].pid); | |
| 506 } | |
| 507 | |
| 508 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, | |
| 509 "%s process %P exited with code %Xul", | |
| 510 ngx_processes[n].name, ngx_processes[n].pid, code); | |
| 511 | |
| 512 ngx_close_handle(ngx_processes[n].reopen); | |
| 513 ngx_close_handle(ngx_processes[n].quit); | |
| 514 ngx_close_handle(ngx_processes[n].term); | |
| 515 ngx_close_handle(h); | |
| 2627 | 516 |
| 2725 | 517 ngx_processes[n].handle = NULL; |
| 518 ngx_processes[n].term = NULL; | |
| 519 ngx_processes[n].quit = NULL; | |
| 520 ngx_processes[n].reopen = NULL; | |
| 521 | |
| 522 if (!ngx_processes[n].exiting && !ngx_terminate && !ngx_quit) { | |
| 523 | |
| 524 if (ngx_spawn_process(cycle, ngx_processes[n].name, n) | |
| 525 == NGX_INVALID_PID) | |
| 526 { | |
| 527 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 528 "can not respawn %s", ngx_processes[n].name); | |
| 529 | |
| 530 if (n == ngx_last_process - 1) { | |
| 531 ngx_last_process--; | |
| 532 } | |
| 533 } | |
| 534 } | |
| 2627 | 535 |
| 2725 | 536 goto found; |
| 537 } | |
| 538 | |
| 539 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unknown process handle %p", h); | |
| 540 | |
| 541 found: | |
| 542 | |
| 543 for (n = 0; n < ngx_last_process; n++) { | |
| 544 | |
| 545 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 2921 | 546 "process: %d %P %p e:%d j:%d", |
| 2725 | 547 n, |
| 548 ngx_processes[n].pid, | |
| 549 ngx_processes[n].handle, | |
| 550 ngx_processes[n].exiting, | |
| 551 ngx_processes[n].just_respawn); | |
| 552 | |
| 553 if (ngx_processes[n].handle) { | |
| 554 return 1; | |
| 555 } | |
| 2627 | 556 } |
| 557 | |
| 558 return 0; | |
| 559 } | |
| 560 | |
| 561 | |
| 562 static void | |
| 2725 | 563 ngx_master_process_exit(ngx_cycle_t *cycle) |
| 564 { | |
| 565 ngx_uint_t i; | |
| 566 | |
| 567 ngx_delete_pidfile(cycle); | |
| 568 | |
| 569 ngx_close_handle(ngx_cache_manager_mutex); | |
| 570 ngx_close_handle(ngx_stop_event); | |
| 571 ngx_close_handle(ngx_quit_event); | |
| 572 ngx_close_handle(ngx_reopen_event); | |
| 573 ngx_close_handle(ngx_reload_event); | |
| 574 ngx_close_handle(ngx_master_process_event); | |
| 575 | |
| 576 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
| 577 | |
| 578 for (i = 0; ngx_modules[i]; i++) { | |
| 579 if (ngx_modules[i]->exit_master) { | |
| 580 ngx_modules[i]->exit_master(cycle); | |
| 581 } | |
| 582 } | |
| 583 | |
| 584 ngx_destroy_pool(cycle->pool); | |
| 585 | |
| 586 exit(0); | |
| 587 } | |
| 588 | |
| 589 | |
| 590 static void | |
| 591 ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn) | |
| 2627 | 592 { |
| 2725 | 593 char wtevn[NGX_PROCESS_SYNC_NAME]; |
| 594 char wqevn[NGX_PROCESS_SYNC_NAME]; | |
| 595 char wroevn[NGX_PROCESS_SYNC_NAME]; | |
| 596 HANDLE mev, events[3]; | |
| 597 u_long nev, ev; | |
| 598 ngx_err_t err; | |
| 599 ngx_tid_t wtid, cmtid; | |
| 600 ngx_log_t *log; | |
| 601 | |
| 602 log = cycle->log; | |
| 603 | |
| 604 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "worker started"); | |
| 605 | |
| 606 ngx_sprintf((u_char *) wtevn, "ngx_worker_term_%ul%Z", ngx_pid); | |
| 607 events[0] = CreateEvent(NULL, 1, 0, wtevn); | |
| 608 if (events[0] == NULL) { | |
| 609 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 610 "CreateEvent(\"%s\") failed", wtevn); | |
| 611 goto failed; | |
| 612 } | |
| 613 | |
| 614 ngx_sprintf((u_char *) wqevn, "ngx_worker_quit_%ul%Z", ngx_pid); | |
| 615 events[1] = CreateEvent(NULL, 1, 0, wqevn); | |
| 616 if (events[1] == NULL) { | |
| 617 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 618 "CreateEvent(\"%s\") failed", wqevn); | |
| 619 goto failed; | |
| 620 } | |
| 621 | |
| 622 ngx_sprintf((u_char *) wroevn, "ngx_worker_reopen_%ul%Z", ngx_pid); | |
| 623 events[2] = CreateEvent(NULL, 1, 0, wroevn); | |
| 624 if (events[2] == NULL) { | |
| 625 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 626 "CreateEvent(\"%s\") failed", wroevn); | |
| 627 goto failed; | |
| 628 } | |
| 629 | |
| 630 mev = OpenEvent(EVENT_MODIFY_STATE, 0, mevn); | |
| 631 if (mev == NULL) { | |
| 632 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 633 "OpenEvent(\"%s\") failed", mevn); | |
| 634 goto failed; | |
| 635 } | |
| 636 | |
| 637 if (SetEvent(mev) == 0) { | |
| 638 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 639 "SetEvent(\"%s\") failed", mevn); | |
| 640 goto failed; | |
| 641 } | |
| 642 | |
| 643 | |
| 644 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
| 645 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
| 646 | |
| 647 ngx_cache_manager_mutex = OpenMutex(SYNCHRONIZE, 0, | |
| 648 ngx_cache_manager_mutex_name); | |
| 649 if (ngx_cache_manager_mutex == NULL) { | |
| 650 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 651 "OpenMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
| 652 goto failed; | |
| 653 } | |
| 654 | |
| 655 ngx_cache_manager_event = CreateEvent(NULL, 1, 0, NULL); | |
| 656 if (ngx_cache_manager_event == NULL) { | |
| 657 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 658 "CreateEvent(\"ngx_cache_manager_event\") failed"); | |
| 659 goto failed; | |
| 660 } | |
| 661 | |
| 662 | |
| 663 if (ngx_create_thread(&wtid, ngx_worker_thread, NULL, log) != 0) { | |
| 664 goto failed; | |
| 665 } | |
| 666 | |
| 667 if (ngx_create_thread(&cmtid, ngx_cache_manager_thread, NULL, log) != 0) { | |
| 668 goto failed; | |
| 669 } | |
| 670 | |
| 671 for ( ;; ) { | |
| 672 ev = WaitForMultipleObjects(3, events, 0, INFINITE); | |
| 673 | |
| 674 err = ngx_errno; | |
| 675 ngx_time_update(0, 0); | |
| 461 | 676 |
| 2725 | 677 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
| 678 "worker WaitForMultipleObjects: %ul", ev); | |
| 679 | |
| 680 if (ev == WAIT_OBJECT_0) { | |
| 681 ngx_terminate = 1; | |
| 682 ngx_log_error(NGX_LOG_NOTICE, log, 0, "exiting"); | |
| 683 | |
| 684 if (ResetEvent(events[0]) == 0) { | |
| 685 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 686 "ResetEvent(\"%s\") failed", wtevn); | |
| 687 } | |
| 688 | |
| 689 break; | |
| 690 } | |
| 691 | |
| 692 if (ev == WAIT_OBJECT_0 + 1) { | |
| 693 ngx_quit = 1; | |
| 694 ngx_log_error(NGX_LOG_NOTICE, log, 0, "gracefully shutting down"); | |
| 695 break; | |
| 696 } | |
| 697 | |
| 698 if (ev == WAIT_OBJECT_0 + 2) { | |
| 699 ngx_reopen = 1; | |
| 700 ngx_log_error(NGX_LOG_NOTICE, log, 0, "reopening logs"); | |
| 701 | |
| 702 if (ResetEvent(events[2]) == 0) { | |
| 703 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 704 "ResetEvent(\"%s\") failed", wroevn); | |
| 705 } | |
| 706 | |
| 707 continue; | |
| 708 } | |
| 709 | |
| 710 if (ev == WAIT_FAILED) { | |
| 711 ngx_log_error(NGX_LOG_ALERT, log, err, | |
| 712 "WaitForMultipleObjects() failed"); | |
| 713 | |
| 714 goto failed; | |
| 715 } | |
| 716 } | |
| 717 | |
| 718 /* wait threads */ | |
| 461 | 719 |
| 2725 | 720 if (SetEvent(ngx_cache_manager_event) == 0) { |
| 721 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 722 "SetEvent(\"ngx_cache_manager_event\") failed"); | |
| 723 } | |
| 724 | |
| 725 events[1] = wtid; | |
| 726 events[2] = cmtid; | |
| 727 | |
| 728 nev = 3; | |
| 729 | |
| 730 for ( ;; ) { | |
| 731 ev = WaitForMultipleObjects(nev, events, 0, INFINITE); | |
| 732 | |
| 733 err = ngx_errno; | |
| 734 ngx_time_update(0, 0); | |
| 735 | |
| 736 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
| 737 "worker exit WaitForMultipleObjects: %ul", ev); | |
| 738 | |
| 739 if (ev == WAIT_OBJECT_0) { | |
| 740 break; | |
| 741 } | |
| 742 | |
| 743 if (ev == WAIT_OBJECT_0 + 1) { | |
| 744 if (nev == 2) { | |
| 745 break; | |
| 746 } | |
| 747 | |
| 748 events[1] = events[2]; | |
| 749 nev = 2; | |
| 750 continue; | |
| 751 } | |
| 752 | |
| 753 if (ev == WAIT_OBJECT_0 + 2) { | |
| 754 nev = 2; | |
| 755 continue; | |
| 756 } | |
| 757 | |
| 758 if (ev == WAIT_FAILED) { | |
| 759 ngx_log_error(NGX_LOG_ALERT, log, err, | |
| 760 "WaitForMultipleObjects() failed"); | |
| 761 break; | |
| 762 } | |
| 461 | 763 } |
| 764 | |
| 2725 | 765 ngx_close_handle(ngx_cache_manager_event); |
| 766 ngx_close_handle(events[0]); | |
| 767 ngx_close_handle(events[1]); | |
| 768 ngx_close_handle(events[2]); | |
| 769 ngx_close_handle(mev); | |
| 770 | |
| 771 ngx_worker_process_exit(cycle); | |
| 772 | |
| 773 failed: | |
| 774 | |
| 775 exit(2); | |
| 776 } | |
| 777 | |
| 778 | |
| 779 static ngx_thread_value_t __stdcall | |
| 780 ngx_worker_thread(void *data) | |
| 781 { | |
| 782 ngx_int_t n; | |
| 783 ngx_uint_t i; | |
| 784 ngx_cycle_t *cycle; | |
| 785 ngx_connection_t *c; | |
| 786 | |
| 787 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 788 | |
| 789 ngx_init_temp_number(); | |
| 790 | |
| 791 for (n = 0; ngx_modules[n]; n++) { | |
| 792 if (ngx_modules[n]->init_process) { | |
| 793 if (ngx_modules[n]->init_process(cycle) == NGX_ERROR) { | |
| 794 /* fatal */ | |
| 795 exit(2); | |
| 796 } | |
| 797 } | |
| 798 } | |
| 799 | |
| 800 while (!ngx_quit) { | |
| 801 | |
| 802 if (ngx_exiting) { | |
| 803 | |
| 804 c = cycle->connections; | |
| 805 | |
| 806 for (i = 0; i < cycle->connection_n; i++) { | |
| 807 | |
| 808 /* THREAD: lock */ | |
| 809 | |
| 810 if (c[i].fd != -1 && c[i].idle) { | |
| 811 c[i].close = 1; | |
| 812 c[i].read->handler(c[i].read); | |
| 813 } | |
| 814 } | |
| 815 | |
| 816 if (ngx_event_timer_rbtree.root | |
| 817 == ngx_event_timer_rbtree.sentinel) | |
| 818 { | |
| 819 break; | |
| 820 } | |
| 821 } | |
| 822 | |
| 823 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "worker cycle"); | |
| 824 | |
| 825 ngx_process_events_and_timers(cycle); | |
| 826 | |
| 827 if (ngx_terminate) { | |
| 828 return 0; | |
| 829 } | |
| 830 | |
| 831 if (ngx_quit) { | |
| 832 ngx_quit = 0; | |
| 833 | |
| 834 if (!ngx_exiting) { | |
| 835 ngx_close_listening_sockets(cycle); | |
| 836 ngx_exiting = 1; | |
| 837 } | |
| 838 } | |
| 839 | |
| 840 if (ngx_reopen) { | |
| 841 ngx_reopen = 0; | |
| 842 ngx_reopen_files(cycle, -1); | |
| 843 } | |
| 844 } | |
| 845 | |
| 846 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 847 | |
| 848 return 0; | |
| 849 } | |
| 850 | |
| 851 | |
| 852 static void | |
| 853 ngx_worker_process_exit(ngx_cycle_t *cycle) | |
| 854 { | |
| 855 ngx_uint_t i; | |
| 856 ngx_connection_t *c; | |
| 857 | |
| 858 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
| 859 | |
| 860 for (i = 0; ngx_modules[i]; i++) { | |
| 861 if (ngx_modules[i]->exit_process) { | |
| 862 ngx_modules[i]->exit_process(cycle); | |
| 863 } | |
| 864 } | |
| 865 | |
| 866 if (ngx_exiting) { | |
| 867 c = cycle->connections; | |
| 868 for (i = 0; i < cycle->connection_n; i++) { | |
| 869 if (c[i].fd != -1 | |
| 870 && c[i].read | |
| 871 && !c[i].read->accept | |
| 872 && !c[i].read->channel | |
| 873 && !c[i].read->resolver) | |
| 874 { | |
| 875 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 876 "open socket #%d left in connection %ui", | |
| 877 c[i].fd, i); | |
| 878 } | |
| 879 } | |
| 461 | 880 } |
| 881 | |
| 2725 | 882 ngx_destroy_pool(cycle->pool); |
| 883 | |
| 884 exit(0); | |
| 885 } | |
| 886 | |
| 887 | |
| 888 static ngx_thread_value_t __stdcall | |
| 889 ngx_cache_manager_thread(void *data) | |
| 890 { | |
| 891 u_long ev; | |
| 892 HANDLE events[2]; | |
| 893 ngx_err_t err; | |
| 894 ngx_cycle_t *cycle; | |
| 895 | |
| 896 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 897 | |
| 898 events[0] = ngx_cache_manager_event; | |
| 899 events[1] = ngx_cache_manager_mutex; | |
| 900 | |
| 901 for ( ;; ) { | |
| 902 ev = WaitForMultipleObjects(2, events, 0, INFINITE); | |
| 903 | |
| 904 err = ngx_errno; | |
| 905 ngx_time_update(0, 0); | |
| 906 | |
| 907 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 908 "cache manager WaitForMultipleObjects: %ul", ev); | |
| 909 | |
| 910 if (ev == WAIT_FAILED) { | |
| 911 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 912 "WaitForMultipleObjects() failed"); | |
| 913 } | |
| 914 | |
| 915 /* | |
| 916 * ev == WAIT_OBJECT_0 | |
| 917 * ev == WAIT_OBJECT_0 + 1 | |
| 918 * ev == WAIT_ABANDONED_0 + 1 | |
| 919 */ | |
| 920 | |
| 921 if (ngx_terminate || ngx_quit) { | |
| 922 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 923 return 0; | |
| 924 } | |
| 925 | |
| 926 break; | |
| 927 } | |
| 928 | |
| 929 for ( ;; ) { | |
| 930 | |
| 931 if (ngx_terminate || ngx_quit) { | |
| 932 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 933 break; | |
| 934 } | |
| 935 | |
| 936 ngx_cache_manager_process_handler(); | |
| 937 } | |
| 938 | |
| 939 if (ReleaseMutex(ngx_cache_manager_mutex) == 0) { | |
| 940 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 941 "ReleaseMutex() failed"); | |
| 942 } | |
| 943 | |
| 944 return 0; | |
| 945 } | |
| 946 | |
| 947 | |
| 948 static void | |
| 949 ngx_cache_manager_process_handler(void) | |
| 950 { | |
| 951 u_long ev; | |
| 952 time_t next, n; | |
| 953 ngx_uint_t i; | |
| 954 ngx_path_t **path; | |
| 955 | |
| 956 next = 60 * 60; | |
| 957 | |
| 958 path = ngx_cycle->pathes.elts; | |
| 959 for (i = 0; i < ngx_cycle->pathes.nelts; i++) { | |
| 960 | |
| 961 if (path[i]->manager) { | |
| 962 n = path[i]->manager(path[i]->data); | |
| 963 | |
| 964 next = (n <= next) ? n : next; | |
| 965 | |
| 966 ngx_time_update(0, 0); | |
| 967 } | |
| 968 } | |
| 969 | |
| 970 if (next == 0) { | |
| 971 next = 1; | |
| 972 } | |
| 973 | |
| 974 ev = WaitForSingleObject(ngx_cache_manager_event, (u_long) next * 1000); | |
| 975 | |
| 976 if (ev != WAIT_TIMEOUT) { | |
| 977 | |
| 978 ngx_time_update(0, 0); | |
| 979 | |
| 980 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
| 981 "cache manager WaitForSingleObject: %ul", ev); | |
| 982 } | |
| 983 } | |
| 984 | |
| 985 | |
| 986 void | |
| 987 ngx_single_process_cycle(ngx_cycle_t *cycle) | |
| 988 { | |
| 989 ngx_int_t i; | |
| 990 ngx_tid_t tid; | |
| 991 | |
| 992 ngx_init_temp_number(); | |
| 993 | |
| 994 for (i = 0; ngx_modules[i]; i++) { | |
| 995 if (ngx_modules[i]->init_process) { | |
| 996 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { | |
| 997 /* fatal */ | |
| 998 exit(2); | |
| 999 } | |
| 1000 } | |
| 1001 } | |
| 1002 | |
| 1003 ngx_process_init(cycle); | |
| 1004 | |
| 1005 ngx_console_init(cycle); | |
| 1006 | |
| 1007 if (ngx_create_events(cycle) != NGX_OK) { | |
| 461 | 1008 exit(2); |
| 1009 } | |
| 1010 | |
| 2725 | 1011 if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) { |
| 461 | 1012 /* fatal */ |
| 1013 exit(2); | |
| 1014 } | |
| 1015 | |
| 2725 | 1016 /* STUB */ |
| 1017 WaitForSingleObject(ngx_stop_event, INFINITE); | |
| 461 | 1018 } |
| 1019 | |
| 1020 | |
| 2725 | 1021 ngx_int_t |
|
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1022 ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid) |
| 461 | 1023 { |
|
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|
1024 HANDLE ev; |
|
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1025 ngx_int_t rc; |
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changeset
|
1026 char evn[NGX_PROCESS_SYNC_NAME]; |
| 461 | 1027 |
| 2725 | 1028 ngx_sprintf((u_char *) evn, "ngx_%s_%ul%Z", sig, pid); |
| 1029 | |
| 1030 ev = OpenEvent(EVENT_MODIFY_STATE, 0, evn); | |
| 1031 if (ev == NULL) { | |
| 1032 ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, | |
| 1033 "OpenEvent(\"%s\") failed", evn); | |
|
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|
1034 return 1; |
| 2725 | 1035 } |
| 461 | 1036 |
| 2725 | 1037 if (SetEvent(ev) == 0) { |
| 1038 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 1039 "SetEvent(\"%s\") failed", evn); | |
|
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parents:
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|
1040 rc = 1; |
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|
1041 |
| 2725 | 1042 } else { |
| 1043 rc = 0; | |
| 1044 } | |
| 1045 | |
| 1046 ngx_close_handle(ev); | |
| 1047 | |
| 1048 return rc; | |
| 1049 } | |
| 461 | 1050 |
| 1051 | |
| 2725 | 1052 void |
| 1053 ngx_close_handle(HANDLE h) | |
| 1054 { | |
| 1055 if (CloseHandle(h) == 0) { | |
| 1056 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, | |
| 1057 "CloseHandle(%p) failed", h); | |
| 461 | 1058 } |
| 1059 } |