Mercurial > hg > nginx
annotate src/os/win32/ngx_process_cycle.c @ 2738:ae81441e23f4
implement "-s signal" option for Unix
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Tue, 21 Apr 2009 20:25:49 +0000 |
| parents | d43d73277c5c |
| children | 78342383cb6e |
| rev | line source |
|---|---|
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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); | |
| 17 static void ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type); | |
| 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 | |
| 119 ngx_start_worker_processes(cycle, NGX_PROCESS_RESPAWN); | |
| 120 | |
| 121 timer = 0; | |
| 122 timeout = INFINITE; | |
| 123 | |
| 124 for ( ;; ) { | |
| 125 | |
| 126 nev = 4; | |
| 127 for (n = 0; n < ngx_last_process; n++) { | |
| 128 if (ngx_processes[n].handle) { | |
| 129 events[nev++] = ngx_processes[n].handle; | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 if (timer) { | |
| 134 timeout = timer > ngx_current_msec ? timer - ngx_current_msec : 0; | |
| 135 } | |
| 136 | |
| 137 ev = WaitForMultipleObjects(nev, events, 0, timeout); | |
| 138 | |
| 139 err = ngx_errno; | |
| 140 ngx_time_update(0, 0); | |
| 141 | |
| 142 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 143 "master WaitForMultipleObjects: %ul", ev); | |
| 144 | |
| 145 if (ev == WAIT_OBJECT_0) { | |
| 146 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
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147 |
| 2725 | 148 if (ResetEvent(ngx_stop_event) == 0) { |
| 149 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 150 "ResetEvent(\"%s\") failed", ngx_stop_event_name); | |
| 151 } | |
| 152 | |
| 153 if (timer == 0) { | |
| 154 timer = ngx_current_msec + 5000; | |
| 155 } | |
| 156 | |
| 157 ngx_terminate = 1; | |
| 158 ngx_quit_worker_processes(cycle, 0); | |
| 159 | |
| 160 continue; | |
| 161 } | |
| 162 | |
| 163 if (ev == WAIT_OBJECT_0 + 1) { | |
| 164 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "shutting down"); | |
| 165 | |
| 166 if (ResetEvent(ngx_quit_event) == 0) { | |
| 167 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 168 "ResetEvent(\"%s\") failed", ngx_quit_event_name); | |
| 169 } | |
| 170 | |
| 171 ngx_quit = 1; | |
| 172 ngx_quit_worker_processes(cycle, 0); | |
| 173 | |
| 174 continue; | |
| 175 } | |
| 176 | |
| 177 if (ev == WAIT_OBJECT_0 + 2) { | |
| 178 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs"); | |
| 179 | |
| 180 if (ResetEvent(ngx_reopen_event) == 0) { | |
| 181 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 182 "ResetEvent(\"%s\") failed", | |
| 183 ngx_reopen_event_name); | |
| 184 } | |
| 185 | |
| 186 ngx_reopen_files(cycle, -1); | |
| 187 ngx_reopen_worker_processes(cycle); | |
| 188 | |
| 189 continue; | |
| 190 } | |
| 191 | |
| 192 if (ev == WAIT_OBJECT_0 + 3) { | |
| 193 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring"); | |
| 194 | |
| 195 if (ResetEvent(ngx_reload_event) == 0) { | |
| 196 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 197 "ResetEvent(\"%s\") failed", | |
| 198 ngx_reload_event_name); | |
| 199 } | |
| 200 | |
| 201 ngx_start_worker_processes(cycle, NGX_PROCESS_JUST_RESPAWN); | |
| 202 ngx_quit_worker_processes(cycle, 1); | |
| 203 | |
| 204 continue; | |
| 205 } | |
| 206 | |
| 207 if (ev > WAIT_OBJECT_0 + 3 && ev < WAIT_OBJECT_0 + nev) { | |
| 208 | |
| 209 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "reap worker"); | |
| 210 | |
| 211 live = ngx_reap_worker(cycle, events[ev]); | |
| 212 | |
| 213 if (!live && (ngx_terminate || ngx_quit)) { | |
| 214 ngx_master_process_exit(cycle); | |
| 215 } | |
| 216 | |
| 217 continue; | |
| 218 } | |
| 219 | |
| 220 if (ev == WAIT_TIMEOUT) { | |
| 221 ngx_terminate_worker_processes(cycle); | |
| 222 | |
| 223 ngx_master_process_exit(cycle); | |
| 224 } | |
| 225 | |
| 226 if (ev == WAIT_FAILED) { | |
| 227 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 228 "WaitForMultipleObjects() failed"); | |
| 229 | |
| 230 continue; | |
| 231 } | |
| 232 | |
| 233 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 234 "WaitForMultipleObjects() returned unexpected value %ul", ev); | |
| 235 } | |
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236 } |
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237 |
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238 |
| 2725 | 239 static void |
| 240 ngx_process_init(ngx_cycle_t *cycle) | |
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241 { |
| 461 | 242 ngx_err_t err; |
| 243 ngx_core_conf_t *ccf; | |
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244 |
| 461 | 245 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| 246 | |
| 2627 | 247 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle) |
| 248 != NGX_OK) | |
| 577 | 249 { |
| 461 | 250 /* fatal */ |
| 251 exit(2); | |
| 252 } | |
| 253 | |
| 254 err = ngx_thread_key_create(&ngx_core_tls_key); | |
| 255 if (err != 0) { | |
| 256 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 257 ngx_thread_key_create_n " failed"); | |
| 258 /* fatal */ | |
| 259 exit(2); | |
| 260 } | |
| 2725 | 261 } |
| 461 | 262 |
| 2725 | 263 |
| 264 static void | |
| 265 ngx_console_init(ngx_cycle_t *cycle) | |
| 266 { | |
| 267 ngx_core_conf_t *ccf; | |
| 268 | |
| 269 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
| 270 | |
| 271 if (ccf->daemon) { | |
| 272 if (FreeConsole() == 0) { | |
| 273 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 274 "FreeConsole() failed"); | |
| 275 } | |
| 276 | |
| 277 return; | |
| 278 } | |
| 279 | |
| 280 if (SetConsoleCtrlHandler(ngx_console_handler, 1) == 0) { | |
| 281 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 282 "SetConsoleCtrlHandler() failed"); | |
| 283 } | |
| 284 } | |
| 285 | |
| 286 | |
| 287 static int __stdcall | |
| 288 ngx_console_handler(u_long type) | |
| 289 { | |
| 290 char *msg; | |
| 291 | |
| 292 switch (type) { | |
| 293 | |
| 294 case CTRL_C_EVENT: | |
| 295 msg = "Ctrl-C pressed, exiting"; | |
| 296 break; | |
| 297 | |
| 298 case CTRL_BREAK_EVENT: | |
| 299 msg = "Ctrl-Break pressed, exiting"; | |
| 300 break; | |
| 301 | |
| 302 case CTRL_CLOSE_EVENT: | |
| 303 msg = "console closing, exiting"; | |
| 304 break; | |
| 305 | |
| 306 case CTRL_LOGOFF_EVENT: | |
| 307 msg = "user logs off, exiting"; | |
| 308 break; | |
| 309 | |
| 310 default: | |
| 311 return 0; | |
| 312 } | |
| 313 | |
| 314 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, msg); | |
| 315 | |
| 316 if (ngx_stop_event == NULL) { | |
| 317 return 1; | |
| 318 } | |
| 319 | |
| 320 if (SetEvent(ngx_stop_event) == 0) { | |
| 321 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
| 322 "SetEvent(\"%s\") failed", ngx_stop_event_name); | |
| 2627 | 323 } |
| 324 | |
| 2725 | 325 return 1; |
| 326 } | |
| 327 | |
| 328 | |
| 329 static ngx_int_t | |
| 330 ngx_create_events(ngx_cycle_t *cycle) | |
| 331 { | |
| 332 ngx_sprintf((u_char *) ngx_stop_event_name, "ngx_stop_%s%Z", ngx_unique); | |
| 333 | |
| 334 ngx_stop_event = CreateEvent(NULL, 1, 0, ngx_stop_event_name); | |
| 335 if (ngx_stop_event == NULL) { | |
| 336 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 337 "CreateEvent(\"%s\") failed", ngx_stop_event_name); | |
| 338 return NGX_ERROR; | |
| 339 } | |
| 340 | |
| 341 | |
| 342 ngx_sprintf((u_char *) ngx_quit_event_name, "ngx_quit_%s%Z", ngx_unique); | |
| 343 | |
| 344 ngx_quit_event = CreateEvent(NULL, 1, 0, ngx_quit_event_name); | |
| 345 if (ngx_quit_event == NULL) { | |
| 346 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 347 "CreateEvent(\"%s\") failed", ngx_quit_event_name); | |
| 348 return NGX_ERROR; | |
| 349 } | |
| 350 | |
| 351 | |
| 352 ngx_sprintf((u_char *) ngx_reopen_event_name, | |
| 353 "ngx_reopen_%s%Z", ngx_unique); | |
| 354 | |
| 355 ngx_reopen_event = CreateEvent(NULL, 1, 0, ngx_reopen_event_name); | |
| 356 if (ngx_reopen_event == NULL) { | |
| 357 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 358 "CreateEvent(\"%s\") failed", ngx_reopen_event_name); | |
| 359 return NGX_ERROR; | |
| 360 } | |
| 361 | |
| 362 | |
| 363 ngx_sprintf((u_char *) ngx_reload_event_name, | |
| 364 "ngx_reload_%s%Z", ngx_unique); | |
| 365 | |
| 366 ngx_reload_event = CreateEvent(NULL, 1, 0, ngx_reload_event_name); | |
| 367 if (ngx_reload_event == NULL) { | |
| 368 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 369 "CreateEvent(\"%s\") failed", ngx_reload_event_name); | |
| 370 return NGX_ERROR; | |
| 371 } | |
| 372 | |
| 373 return NGX_OK; | |
| 374 } | |
| 375 | |
| 376 | |
| 377 static void | |
| 378 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type) | |
| 379 { | |
| 380 ngx_int_t n; | |
| 381 ngx_core_conf_t *ccf; | |
| 382 | |
| 383 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes"); | |
| 384 | |
| 385 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
| 386 | |
| 387 for (n = 0; n < ccf->worker_processes; n++) { | |
| 388 if (ngx_spawn_process(cycle, "worker", type) == NGX_INVALID_PID) { | |
| 389 return; | |
| 390 } | |
| 391 } | |
| 2627 | 392 } |
| 393 | |
| 394 | |
| 2725 | 395 static void |
| 396 ngx_reopen_worker_processes(ngx_cycle_t *cycle) | |
| 397 { | |
| 398 ngx_int_t n; | |
| 399 | |
| 400 for (n = 0; n < ngx_last_process; n++) { | |
| 401 | |
| 402 if (ngx_processes[n].handle == NULL) { | |
| 403 continue; | |
| 404 } | |
| 405 | |
| 406 if (SetEvent(ngx_processes[n].reopen) == 0) { | |
| 407 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 408 "SetEvent(\"%s\") failed", | |
| 409 ngx_processes[n].reopen_event); | |
| 410 } | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 | |
| 415 static void | |
| 416 ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old) | |
| 2627 | 417 { |
| 2725 | 418 ngx_int_t n; |
| 419 | |
| 420 for (n = 0; n < ngx_last_process; n++) { | |
| 421 | |
| 422 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 423 "process: %d %P %p e:%d t:%d r:%d j:%d", | |
| 424 n, | |
| 425 ngx_processes[n].pid, | |
| 426 ngx_processes[n].handle, | |
| 427 ngx_processes[n].exiting, | |
| 428 ngx_processes[n].just_respawn); | |
| 429 | |
| 430 if (old && ngx_processes[n].just_respawn) { | |
| 431 ngx_processes[n].just_respawn = 0; | |
| 432 continue; | |
| 433 } | |
| 434 | |
| 435 if (ngx_processes[n].handle == NULL) { | |
| 436 continue; | |
| 437 } | |
| 438 | |
| 439 if (SetEvent(ngx_processes[n].quit) == 0) { | |
| 440 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 441 "SetEvent(\"%s\") failed", | |
| 442 ngx_processes[n].quit_event); | |
| 443 } | |
| 444 | |
| 445 ngx_processes[n].exiting = 1; | |
| 446 } | |
| 447 } | |
| 448 | |
| 449 | |
| 450 static void | |
| 451 ngx_terminate_worker_processes(ngx_cycle_t *cycle) | |
| 452 { | |
| 453 ngx_int_t n; | |
| 454 | |
| 455 for (n = 0; n < ngx_last_process; n++) { | |
| 456 | |
| 457 if (ngx_processes[n].handle == NULL) { | |
| 458 continue; | |
| 459 } | |
| 460 | |
| 461 if (TerminateProcess(ngx_processes[n].handle, 0) == 0) { | |
| 462 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 463 "TerminateProcess(\"%p\") failed", | |
| 464 ngx_processes[n].handle); | |
| 465 } | |
| 466 | |
| 467 ngx_processes[n].exiting = 1; | |
| 2627 | 468 |
| 2725 | 469 ngx_close_handle(ngx_processes[n].reopen); |
| 470 ngx_close_handle(ngx_processes[n].quit); | |
| 471 ngx_close_handle(ngx_processes[n].term); | |
| 472 ngx_close_handle(ngx_processes[n].handle); | |
| 473 } | |
| 474 } | |
| 475 | |
| 476 | |
| 477 static ngx_uint_t | |
| 478 ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h) | |
| 479 { | |
| 480 u_long code; | |
| 481 ngx_int_t n; | |
| 482 | |
| 483 for (n = 0; n < ngx_last_process; n++) { | |
| 484 | |
| 485 if (ngx_processes[n].handle != h) { | |
| 486 continue; | |
| 487 } | |
| 488 | |
| 489 if (GetExitCodeProcess(h, &code) == 0) { | |
| 490 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 491 "GetExitCodeProcess(%P) failed", | |
| 492 ngx_processes[n].pid); | |
| 493 } | |
| 494 | |
| 495 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, | |
| 496 "%s process %P exited with code %Xul", | |
| 497 ngx_processes[n].name, ngx_processes[n].pid, code); | |
| 498 | |
| 499 ngx_close_handle(ngx_processes[n].reopen); | |
| 500 ngx_close_handle(ngx_processes[n].quit); | |
| 501 ngx_close_handle(ngx_processes[n].term); | |
| 502 ngx_close_handle(h); | |
| 2627 | 503 |
| 2725 | 504 ngx_processes[n].handle = NULL; |
| 505 ngx_processes[n].term = NULL; | |
| 506 ngx_processes[n].quit = NULL; | |
| 507 ngx_processes[n].reopen = NULL; | |
| 508 | |
| 509 if (!ngx_processes[n].exiting && !ngx_terminate && !ngx_quit) { | |
| 510 | |
| 511 if (ngx_spawn_process(cycle, ngx_processes[n].name, n) | |
| 512 == NGX_INVALID_PID) | |
| 513 { | |
| 514 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 515 "can not respawn %s", ngx_processes[n].name); | |
| 516 | |
| 517 if (n == ngx_last_process - 1) { | |
| 518 ngx_last_process--; | |
| 519 } | |
| 520 } | |
| 521 } | |
| 2627 | 522 |
| 2725 | 523 goto found; |
| 524 } | |
| 525 | |
| 526 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unknown process handle %p", h); | |
| 527 | |
| 528 found: | |
| 529 | |
| 530 for (n = 0; n < ngx_last_process; n++) { | |
| 531 | |
| 532 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 533 "process: %d %P %p e:%d t:%d r:%d j:%d", | |
| 534 n, | |
| 535 ngx_processes[n].pid, | |
| 536 ngx_processes[n].handle, | |
| 537 ngx_processes[n].exiting, | |
| 538 ngx_processes[n].just_respawn); | |
| 539 | |
| 540 if (ngx_processes[n].handle) { | |
| 541 return 1; | |
| 542 } | |
| 2627 | 543 } |
| 544 | |
| 545 return 0; | |
| 546 } | |
| 547 | |
| 548 | |
| 549 static void | |
| 2725 | 550 ngx_master_process_exit(ngx_cycle_t *cycle) |
| 551 { | |
| 552 ngx_uint_t i; | |
| 553 | |
| 554 ngx_delete_pidfile(cycle); | |
| 555 | |
| 556 ngx_close_handle(ngx_cache_manager_mutex); | |
| 557 ngx_close_handle(ngx_stop_event); | |
| 558 ngx_close_handle(ngx_quit_event); | |
| 559 ngx_close_handle(ngx_reopen_event); | |
| 560 ngx_close_handle(ngx_reload_event); | |
| 561 ngx_close_handle(ngx_master_process_event); | |
| 562 | |
| 563 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
| 564 | |
| 565 for (i = 0; ngx_modules[i]; i++) { | |
| 566 if (ngx_modules[i]->exit_master) { | |
| 567 ngx_modules[i]->exit_master(cycle); | |
| 568 } | |
| 569 } | |
| 570 | |
| 571 ngx_destroy_pool(cycle->pool); | |
| 572 | |
| 573 exit(0); | |
| 574 } | |
| 575 | |
| 576 | |
| 577 static void | |
| 578 ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn) | |
| 2627 | 579 { |
| 2725 | 580 char wtevn[NGX_PROCESS_SYNC_NAME]; |
| 581 char wqevn[NGX_PROCESS_SYNC_NAME]; | |
| 582 char wroevn[NGX_PROCESS_SYNC_NAME]; | |
| 583 HANDLE mev, events[3]; | |
| 584 u_long nev, ev; | |
| 585 ngx_err_t err; | |
| 586 ngx_tid_t wtid, cmtid; | |
| 587 ngx_log_t *log; | |
| 588 | |
| 589 log = cycle->log; | |
| 590 | |
| 591 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "worker started"); | |
| 592 | |
| 593 ngx_sprintf((u_char *) wtevn, "ngx_worker_term_%ul%Z", ngx_pid); | |
| 594 events[0] = CreateEvent(NULL, 1, 0, wtevn); | |
| 595 if (events[0] == NULL) { | |
| 596 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 597 "CreateEvent(\"%s\") failed", wtevn); | |
| 598 goto failed; | |
| 599 } | |
| 600 | |
| 601 ngx_sprintf((u_char *) wqevn, "ngx_worker_quit_%ul%Z", ngx_pid); | |
| 602 events[1] = CreateEvent(NULL, 1, 0, wqevn); | |
| 603 if (events[1] == NULL) { | |
| 604 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 605 "CreateEvent(\"%s\") failed", wqevn); | |
| 606 goto failed; | |
| 607 } | |
| 608 | |
| 609 ngx_sprintf((u_char *) wroevn, "ngx_worker_reopen_%ul%Z", ngx_pid); | |
| 610 events[2] = CreateEvent(NULL, 1, 0, wroevn); | |
| 611 if (events[2] == NULL) { | |
| 612 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 613 "CreateEvent(\"%s\") failed", wroevn); | |
| 614 goto failed; | |
| 615 } | |
| 616 | |
| 617 mev = OpenEvent(EVENT_MODIFY_STATE, 0, mevn); | |
| 618 if (mev == NULL) { | |
| 619 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 620 "OpenEvent(\"%s\") failed", mevn); | |
| 621 goto failed; | |
| 622 } | |
| 623 | |
| 624 if (SetEvent(mev) == 0) { | |
| 625 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 626 "SetEvent(\"%s\") failed", mevn); | |
| 627 goto failed; | |
| 628 } | |
| 629 | |
| 630 | |
| 631 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
| 632 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
| 633 | |
| 634 ngx_cache_manager_mutex = OpenMutex(SYNCHRONIZE, 0, | |
| 635 ngx_cache_manager_mutex_name); | |
| 636 if (ngx_cache_manager_mutex == NULL) { | |
| 637 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 638 "OpenMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
| 639 goto failed; | |
| 640 } | |
| 641 | |
| 642 ngx_cache_manager_event = CreateEvent(NULL, 1, 0, NULL); | |
| 643 if (ngx_cache_manager_event == NULL) { | |
| 644 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 645 "CreateEvent(\"ngx_cache_manager_event\") failed"); | |
| 646 goto failed; | |
| 647 } | |
| 648 | |
| 649 | |
| 650 if (ngx_create_thread(&wtid, ngx_worker_thread, NULL, log) != 0) { | |
| 651 goto failed; | |
| 652 } | |
| 653 | |
| 654 if (ngx_create_thread(&cmtid, ngx_cache_manager_thread, NULL, log) != 0) { | |
| 655 goto failed; | |
| 656 } | |
| 657 | |
| 658 for ( ;; ) { | |
| 659 ev = WaitForMultipleObjects(3, events, 0, INFINITE); | |
| 660 | |
| 661 err = ngx_errno; | |
| 662 ngx_time_update(0, 0); | |
| 461 | 663 |
| 2725 | 664 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
| 665 "worker WaitForMultipleObjects: %ul", ev); | |
| 666 | |
| 667 if (ev == WAIT_OBJECT_0) { | |
| 668 ngx_terminate = 1; | |
| 669 ngx_log_error(NGX_LOG_NOTICE, log, 0, "exiting"); | |
| 670 | |
| 671 if (ResetEvent(events[0]) == 0) { | |
| 672 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 673 "ResetEvent(\"%s\") failed", wtevn); | |
| 674 } | |
| 675 | |
| 676 break; | |
| 677 } | |
| 678 | |
| 679 if (ev == WAIT_OBJECT_0 + 1) { | |
| 680 ngx_quit = 1; | |
| 681 ngx_log_error(NGX_LOG_NOTICE, log, 0, "gracefully shutting down"); | |
| 682 break; | |
| 683 } | |
| 684 | |
| 685 if (ev == WAIT_OBJECT_0 + 2) { | |
| 686 ngx_reopen = 1; | |
| 687 ngx_log_error(NGX_LOG_NOTICE, log, 0, "reopening logs"); | |
| 688 | |
| 689 if (ResetEvent(events[2]) == 0) { | |
| 690 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 691 "ResetEvent(\"%s\") failed", wroevn); | |
| 692 } | |
| 693 | |
| 694 continue; | |
| 695 } | |
| 696 | |
| 697 if (ev == WAIT_FAILED) { | |
| 698 ngx_log_error(NGX_LOG_ALERT, log, err, | |
| 699 "WaitForMultipleObjects() failed"); | |
| 700 | |
| 701 goto failed; | |
| 702 } | |
| 703 } | |
| 704 | |
| 705 /* wait threads */ | |
| 461 | 706 |
| 2725 | 707 if (SetEvent(ngx_cache_manager_event) == 0) { |
| 708 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 709 "SetEvent(\"ngx_cache_manager_event\") failed"); | |
| 710 } | |
| 711 | |
| 712 events[1] = wtid; | |
| 713 events[2] = cmtid; | |
| 714 | |
| 715 nev = 3; | |
| 716 | |
| 717 for ( ;; ) { | |
| 718 ev = WaitForMultipleObjects(nev, events, 0, INFINITE); | |
| 719 | |
| 720 err = ngx_errno; | |
| 721 ngx_time_update(0, 0); | |
| 722 | |
| 723 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
| 724 "worker exit WaitForMultipleObjects: %ul", ev); | |
| 725 | |
| 726 if (ev == WAIT_OBJECT_0) { | |
| 727 break; | |
| 728 } | |
| 729 | |
| 730 if (ev == WAIT_OBJECT_0 + 1) { | |
| 731 if (nev == 2) { | |
| 732 break; | |
| 733 } | |
| 734 | |
| 735 events[1] = events[2]; | |
| 736 nev = 2; | |
| 737 continue; | |
| 738 } | |
| 739 | |
| 740 if (ev == WAIT_OBJECT_0 + 2) { | |
| 741 nev = 2; | |
| 742 continue; | |
| 743 } | |
| 744 | |
| 745 if (ev == WAIT_FAILED) { | |
| 746 ngx_log_error(NGX_LOG_ALERT, log, err, | |
| 747 "WaitForMultipleObjects() failed"); | |
| 748 break; | |
| 749 } | |
| 461 | 750 } |
| 751 | |
| 2725 | 752 ngx_close_handle(ngx_cache_manager_event); |
| 753 ngx_close_handle(events[0]); | |
| 754 ngx_close_handle(events[1]); | |
| 755 ngx_close_handle(events[2]); | |
| 756 ngx_close_handle(mev); | |
| 757 | |
| 758 ngx_worker_process_exit(cycle); | |
| 759 | |
| 760 failed: | |
| 761 | |
| 762 exit(2); | |
| 763 } | |
| 764 | |
| 765 | |
| 766 static ngx_thread_value_t __stdcall | |
| 767 ngx_worker_thread(void *data) | |
| 768 { | |
| 769 ngx_int_t n; | |
| 770 ngx_uint_t i; | |
| 771 ngx_cycle_t *cycle; | |
| 772 ngx_connection_t *c; | |
| 773 | |
| 774 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 775 | |
| 776 ngx_init_temp_number(); | |
| 777 | |
| 778 for (n = 0; ngx_modules[n]; n++) { | |
| 779 if (ngx_modules[n]->init_process) { | |
| 780 if (ngx_modules[n]->init_process(cycle) == NGX_ERROR) { | |
| 781 /* fatal */ | |
| 782 exit(2); | |
| 783 } | |
| 784 } | |
| 785 } | |
| 786 | |
| 787 while (!ngx_quit) { | |
| 788 | |
| 789 if (ngx_exiting) { | |
| 790 | |
| 791 c = cycle->connections; | |
| 792 | |
| 793 for (i = 0; i < cycle->connection_n; i++) { | |
| 794 | |
| 795 /* THREAD: lock */ | |
| 796 | |
| 797 if (c[i].fd != -1 && c[i].idle) { | |
| 798 c[i].close = 1; | |
| 799 c[i].read->handler(c[i].read); | |
| 800 } | |
| 801 } | |
| 802 | |
| 803 if (ngx_event_timer_rbtree.root | |
| 804 == ngx_event_timer_rbtree.sentinel) | |
| 805 { | |
| 806 break; | |
| 807 } | |
| 808 } | |
| 809 | |
| 810 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "worker cycle"); | |
| 811 | |
| 812 ngx_process_events_and_timers(cycle); | |
| 813 | |
| 814 if (ngx_terminate) { | |
| 815 return 0; | |
| 816 } | |
| 817 | |
| 818 if (ngx_quit) { | |
| 819 ngx_quit = 0; | |
| 820 | |
| 821 if (!ngx_exiting) { | |
| 822 ngx_close_listening_sockets(cycle); | |
| 823 ngx_exiting = 1; | |
| 824 } | |
| 825 } | |
| 826 | |
| 827 if (ngx_reopen) { | |
| 828 ngx_reopen = 0; | |
| 829 ngx_reopen_files(cycle, -1); | |
| 830 } | |
| 831 } | |
| 832 | |
| 833 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 834 | |
| 835 return 0; | |
| 836 } | |
| 837 | |
| 838 | |
| 839 static void | |
| 840 ngx_worker_process_exit(ngx_cycle_t *cycle) | |
| 841 { | |
| 842 ngx_uint_t i; | |
| 843 ngx_connection_t *c; | |
| 844 | |
| 845 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
| 846 | |
| 847 for (i = 0; ngx_modules[i]; i++) { | |
| 848 if (ngx_modules[i]->exit_process) { | |
| 849 ngx_modules[i]->exit_process(cycle); | |
| 850 } | |
| 851 } | |
| 852 | |
| 853 if (ngx_exiting) { | |
| 854 c = cycle->connections; | |
| 855 for (i = 0; i < cycle->connection_n; i++) { | |
| 856 if (c[i].fd != -1 | |
| 857 && c[i].read | |
| 858 && !c[i].read->accept | |
| 859 && !c[i].read->channel | |
| 860 && !c[i].read->resolver) | |
| 861 { | |
| 862 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 863 "open socket #%d left in connection %ui", | |
| 864 c[i].fd, i); | |
| 865 } | |
| 866 } | |
| 461 | 867 } |
| 868 | |
| 2725 | 869 ngx_destroy_pool(cycle->pool); |
| 870 | |
| 871 exit(0); | |
| 872 } | |
| 873 | |
| 874 | |
| 875 static ngx_thread_value_t __stdcall | |
| 876 ngx_cache_manager_thread(void *data) | |
| 877 { | |
| 878 u_long ev; | |
| 879 HANDLE events[2]; | |
| 880 ngx_err_t err; | |
| 881 ngx_cycle_t *cycle; | |
| 882 | |
| 883 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 884 | |
| 885 events[0] = ngx_cache_manager_event; | |
| 886 events[1] = ngx_cache_manager_mutex; | |
| 887 | |
| 888 for ( ;; ) { | |
| 889 ev = WaitForMultipleObjects(2, events, 0, INFINITE); | |
| 890 | |
| 891 err = ngx_errno; | |
| 892 ngx_time_update(0, 0); | |
| 893 | |
| 894 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 895 "cache manager WaitForMultipleObjects: %ul", ev); | |
| 896 | |
| 897 if (ev == WAIT_FAILED) { | |
| 898 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 899 "WaitForMultipleObjects() failed"); | |
| 900 } | |
| 901 | |
| 902 /* | |
| 903 * ev == WAIT_OBJECT_0 | |
| 904 * ev == WAIT_OBJECT_0 + 1 | |
| 905 * ev == WAIT_ABANDONED_0 + 1 | |
| 906 */ | |
| 907 | |
| 908 if (ngx_terminate || ngx_quit) { | |
| 909 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 910 return 0; | |
| 911 } | |
| 912 | |
| 913 break; | |
| 914 } | |
| 915 | |
| 916 for ( ;; ) { | |
| 917 | |
| 918 if (ngx_terminate || ngx_quit) { | |
| 919 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 920 break; | |
| 921 } | |
| 922 | |
| 923 ngx_cache_manager_process_handler(); | |
| 924 } | |
| 925 | |
| 926 if (ReleaseMutex(ngx_cache_manager_mutex) == 0) { | |
| 927 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 928 "ReleaseMutex() failed"); | |
| 929 } | |
| 930 | |
| 931 return 0; | |
| 932 } | |
| 933 | |
| 934 | |
| 935 static void | |
| 936 ngx_cache_manager_process_handler(void) | |
| 937 { | |
| 938 u_long ev; | |
| 939 time_t next, n; | |
| 940 ngx_uint_t i; | |
| 941 ngx_path_t **path; | |
| 942 | |
| 943 next = 60 * 60; | |
| 944 | |
| 945 path = ngx_cycle->pathes.elts; | |
| 946 for (i = 0; i < ngx_cycle->pathes.nelts; i++) { | |
| 947 | |
| 948 if (path[i]->manager) { | |
| 949 n = path[i]->manager(path[i]->data); | |
| 950 | |
| 951 next = (n <= next) ? n : next; | |
| 952 | |
| 953 ngx_time_update(0, 0); | |
| 954 } | |
| 955 } | |
| 956 | |
| 957 if (next == 0) { | |
| 958 next = 1; | |
| 959 } | |
| 960 | |
| 961 ev = WaitForSingleObject(ngx_cache_manager_event, (u_long) next * 1000); | |
| 962 | |
| 963 if (ev != WAIT_TIMEOUT) { | |
| 964 | |
| 965 ngx_time_update(0, 0); | |
| 966 | |
| 967 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
| 968 "cache manager WaitForSingleObject: %ul", ev); | |
| 969 } | |
| 970 } | |
| 971 | |
| 972 | |
| 973 void | |
| 974 ngx_single_process_cycle(ngx_cycle_t *cycle) | |
| 975 { | |
| 976 ngx_int_t i; | |
| 977 ngx_tid_t tid; | |
| 978 | |
| 979 ngx_init_temp_number(); | |
| 980 | |
| 981 for (i = 0; ngx_modules[i]; i++) { | |
| 982 if (ngx_modules[i]->init_process) { | |
| 983 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { | |
| 984 /* fatal */ | |
| 985 exit(2); | |
| 986 } | |
| 987 } | |
| 988 } | |
| 989 | |
| 990 ngx_process_init(cycle); | |
| 991 | |
| 992 ngx_console_init(cycle); | |
| 993 | |
| 994 if (ngx_create_events(cycle) != NGX_OK) { | |
| 461 | 995 exit(2); |
| 996 } | |
| 997 | |
| 2725 | 998 if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) { |
| 461 | 999 /* fatal */ |
| 1000 exit(2); | |
| 1001 } | |
| 1002 | |
| 2725 | 1003 /* STUB */ |
| 1004 WaitForSingleObject(ngx_stop_event, INFINITE); | |
| 461 | 1005 } |
| 1006 | |
| 1007 | |
| 2725 | 1008 ngx_int_t |
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1009 ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid) |
| 461 | 1010 { |
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1011 HANDLE ev; |
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1012 ngx_int_t rc; |
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1013 char evn[NGX_PROCESS_SYNC_NAME]; |
| 461 | 1014 |
| 2725 | 1015 ngx_sprintf((u_char *) evn, "ngx_%s_%ul%Z", sig, pid); |
| 1016 | |
| 1017 ev = OpenEvent(EVENT_MODIFY_STATE, 0, evn); | |
| 1018 if (ev == NULL) { | |
| 1019 ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, | |
| 1020 "OpenEvent(\"%s\") failed", evn); | |
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1021 return 1; |
| 2725 | 1022 } |
| 461 | 1023 |
| 2725 | 1024 if (SetEvent(ev) == 0) { |
| 1025 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 1026 "SetEvent(\"%s\") failed", evn); | |
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1027 rc = 1; |
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1028 |
| 2725 | 1029 } else { |
| 1030 rc = 0; | |
| 1031 } | |
| 1032 | |
| 1033 ngx_close_handle(ev); | |
| 1034 | |
| 1035 return rc; | |
| 1036 } | |
| 461 | 1037 |
| 1038 | |
| 2725 | 1039 void |
| 1040 ngx_close_handle(HANDLE h) | |
| 1041 { | |
| 1042 if (CloseHandle(h) == 0) { | |
| 1043 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, | |
| 1044 "CloseHandle(%p) failed", h); | |
| 461 | 1045 } |
| 1046 } |