Mercurial > hg > nginx
annotate src/os/win32/ngx_process_cycle.c @ 2921:e7278e647f1a
fix debug logging
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 05 Jun 2009 17:44:49 +0000 |
| parents | 234a8248812c |
| children | f0604d0b28a6 |
| rev | line source |
|---|---|
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nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /* |
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nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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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 | |
| 2823 | 201 cycle = ngx_init_cycle(cycle); |
| 202 if (cycle == NULL) { | |
| 203 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 204 continue; | |
| 205 } | |
| 206 | |
| 207 ngx_cycle = cycle; | |
| 208 | |
| 2725 | 209 ngx_start_worker_processes(cycle, NGX_PROCESS_JUST_RESPAWN); |
| 210 ngx_quit_worker_processes(cycle, 1); | |
| 211 | |
| 212 continue; | |
| 213 } | |
| 214 | |
| 215 if (ev > WAIT_OBJECT_0 + 3 && ev < WAIT_OBJECT_0 + nev) { | |
| 216 | |
| 217 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "reap worker"); | |
| 218 | |
| 219 live = ngx_reap_worker(cycle, events[ev]); | |
| 220 | |
| 221 if (!live && (ngx_terminate || ngx_quit)) { | |
| 222 ngx_master_process_exit(cycle); | |
| 223 } | |
| 224 | |
| 225 continue; | |
| 226 } | |
| 227 | |
| 228 if (ev == WAIT_TIMEOUT) { | |
| 229 ngx_terminate_worker_processes(cycle); | |
| 230 | |
| 231 ngx_master_process_exit(cycle); | |
| 232 } | |
| 233 | |
| 234 if (ev == WAIT_FAILED) { | |
| 235 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 236 "WaitForMultipleObjects() failed"); | |
| 237 | |
| 238 continue; | |
| 239 } | |
| 240 | |
| 241 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 242 "WaitForMultipleObjects() returned unexpected value %ul", ev); | |
| 243 } | |
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244 } |
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246 |
| 2725 | 247 static void |
| 248 ngx_process_init(ngx_cycle_t *cycle) | |
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249 { |
| 461 | 250 ngx_err_t err; |
| 251 ngx_core_conf_t *ccf; | |
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252 |
| 461 | 253 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| 254 | |
| 2627 | 255 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle) |
| 256 != NGX_OK) | |
| 577 | 257 { |
| 461 | 258 /* fatal */ |
| 259 exit(2); | |
| 260 } | |
| 261 | |
| 262 err = ngx_thread_key_create(&ngx_core_tls_key); | |
| 263 if (err != 0) { | |
| 264 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 265 ngx_thread_key_create_n " failed"); | |
| 266 /* fatal */ | |
| 267 exit(2); | |
| 268 } | |
| 2725 | 269 } |
| 461 | 270 |
| 2725 | 271 |
| 272 static void | |
| 273 ngx_console_init(ngx_cycle_t *cycle) | |
| 274 { | |
| 275 ngx_core_conf_t *ccf; | |
| 276 | |
| 277 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
| 278 | |
| 279 if (ccf->daemon) { | |
| 280 if (FreeConsole() == 0) { | |
| 281 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 282 "FreeConsole() failed"); | |
| 283 } | |
| 284 | |
| 285 return; | |
| 286 } | |
| 287 | |
| 288 if (SetConsoleCtrlHandler(ngx_console_handler, 1) == 0) { | |
| 289 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 290 "SetConsoleCtrlHandler() failed"); | |
| 291 } | |
| 292 } | |
| 293 | |
| 294 | |
| 295 static int __stdcall | |
| 296 ngx_console_handler(u_long type) | |
| 297 { | |
| 298 char *msg; | |
| 299 | |
| 300 switch (type) { | |
| 301 | |
| 302 case CTRL_C_EVENT: | |
| 303 msg = "Ctrl-C pressed, exiting"; | |
| 304 break; | |
| 305 | |
| 306 case CTRL_BREAK_EVENT: | |
| 307 msg = "Ctrl-Break pressed, exiting"; | |
| 308 break; | |
| 309 | |
| 310 case CTRL_CLOSE_EVENT: | |
| 311 msg = "console closing, exiting"; | |
| 312 break; | |
| 313 | |
| 314 case CTRL_LOGOFF_EVENT: | |
| 315 msg = "user logs off, exiting"; | |
| 316 break; | |
| 317 | |
| 318 default: | |
| 319 return 0; | |
| 320 } | |
| 321 | |
| 322 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, msg); | |
| 323 | |
| 324 if (ngx_stop_event == NULL) { | |
| 325 return 1; | |
| 326 } | |
| 327 | |
| 328 if (SetEvent(ngx_stop_event) == 0) { | |
| 329 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
| 330 "SetEvent(\"%s\") failed", ngx_stop_event_name); | |
| 2627 | 331 } |
| 332 | |
| 2725 | 333 return 1; |
| 334 } | |
| 335 | |
| 336 | |
| 337 static ngx_int_t | |
| 338 ngx_create_events(ngx_cycle_t *cycle) | |
| 339 { | |
| 340 ngx_sprintf((u_char *) ngx_stop_event_name, "ngx_stop_%s%Z", ngx_unique); | |
| 341 | |
| 342 ngx_stop_event = CreateEvent(NULL, 1, 0, ngx_stop_event_name); | |
| 343 if (ngx_stop_event == NULL) { | |
| 344 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 345 "CreateEvent(\"%s\") failed", ngx_stop_event_name); | |
| 346 return NGX_ERROR; | |
| 347 } | |
| 348 | |
| 349 | |
| 350 ngx_sprintf((u_char *) ngx_quit_event_name, "ngx_quit_%s%Z", ngx_unique); | |
| 351 | |
| 352 ngx_quit_event = CreateEvent(NULL, 1, 0, ngx_quit_event_name); | |
| 353 if (ngx_quit_event == NULL) { | |
| 354 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 355 "CreateEvent(\"%s\") failed", ngx_quit_event_name); | |
| 356 return NGX_ERROR; | |
| 357 } | |
| 358 | |
| 359 | |
| 360 ngx_sprintf((u_char *) ngx_reopen_event_name, | |
| 361 "ngx_reopen_%s%Z", ngx_unique); | |
| 362 | |
| 363 ngx_reopen_event = CreateEvent(NULL, 1, 0, ngx_reopen_event_name); | |
| 364 if (ngx_reopen_event == NULL) { | |
| 365 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 366 "CreateEvent(\"%s\") failed", ngx_reopen_event_name); | |
| 367 return NGX_ERROR; | |
| 368 } | |
| 369 | |
| 370 | |
| 371 ngx_sprintf((u_char *) ngx_reload_event_name, | |
| 372 "ngx_reload_%s%Z", ngx_unique); | |
| 373 | |
| 374 ngx_reload_event = CreateEvent(NULL, 1, 0, ngx_reload_event_name); | |
| 375 if (ngx_reload_event == NULL) { | |
| 376 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 377 "CreateEvent(\"%s\") failed", ngx_reload_event_name); | |
| 378 return NGX_ERROR; | |
| 379 } | |
| 380 | |
| 381 return NGX_OK; | |
| 382 } | |
| 383 | |
| 384 | |
| 385 static void | |
| 386 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type) | |
| 387 { | |
| 388 ngx_int_t n; | |
| 389 ngx_core_conf_t *ccf; | |
| 390 | |
| 391 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes"); | |
| 392 | |
| 393 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
| 394 | |
| 395 for (n = 0; n < ccf->worker_processes; n++) { | |
| 396 if (ngx_spawn_process(cycle, "worker", type) == NGX_INVALID_PID) { | |
| 397 return; | |
| 398 } | |
| 399 } | |
| 2627 | 400 } |
| 401 | |
| 402 | |
| 2725 | 403 static void |
| 404 ngx_reopen_worker_processes(ngx_cycle_t *cycle) | |
| 405 { | |
| 406 ngx_int_t n; | |
| 407 | |
| 408 for (n = 0; n < ngx_last_process; n++) { | |
| 409 | |
| 410 if (ngx_processes[n].handle == NULL) { | |
| 411 continue; | |
| 412 } | |
| 413 | |
| 414 if (SetEvent(ngx_processes[n].reopen) == 0) { | |
| 415 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 416 "SetEvent(\"%s\") failed", | |
| 417 ngx_processes[n].reopen_event); | |
| 418 } | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 | |
| 423 static void | |
| 424 ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old) | |
| 2627 | 425 { |
| 2725 | 426 ngx_int_t n; |
| 427 | |
| 428 for (n = 0; n < ngx_last_process; n++) { | |
| 429 | |
| 430 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 2921 | 431 "process: %d %P %p e:%d j:%d", |
| 2725 | 432 n, |
| 433 ngx_processes[n].pid, | |
| 434 ngx_processes[n].handle, | |
| 435 ngx_processes[n].exiting, | |
| 436 ngx_processes[n].just_respawn); | |
| 437 | |
| 438 if (old && ngx_processes[n].just_respawn) { | |
| 439 ngx_processes[n].just_respawn = 0; | |
| 440 continue; | |
| 441 } | |
| 442 | |
| 443 if (ngx_processes[n].handle == NULL) { | |
| 444 continue; | |
| 445 } | |
| 446 | |
| 447 if (SetEvent(ngx_processes[n].quit) == 0) { | |
| 448 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 449 "SetEvent(\"%s\") failed", | |
| 450 ngx_processes[n].quit_event); | |
| 451 } | |
| 452 | |
| 453 ngx_processes[n].exiting = 1; | |
| 454 } | |
| 455 } | |
| 456 | |
| 457 | |
| 458 static void | |
| 459 ngx_terminate_worker_processes(ngx_cycle_t *cycle) | |
| 460 { | |
| 461 ngx_int_t n; | |
| 462 | |
| 463 for (n = 0; n < ngx_last_process; n++) { | |
| 464 | |
| 465 if (ngx_processes[n].handle == NULL) { | |
| 466 continue; | |
| 467 } | |
| 468 | |
| 469 if (TerminateProcess(ngx_processes[n].handle, 0) == 0) { | |
| 470 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 471 "TerminateProcess(\"%p\") failed", | |
| 472 ngx_processes[n].handle); | |
| 473 } | |
| 474 | |
| 475 ngx_processes[n].exiting = 1; | |
| 2627 | 476 |
| 2725 | 477 ngx_close_handle(ngx_processes[n].reopen); |
| 478 ngx_close_handle(ngx_processes[n].quit); | |
| 479 ngx_close_handle(ngx_processes[n].term); | |
| 480 ngx_close_handle(ngx_processes[n].handle); | |
| 481 } | |
| 482 } | |
| 483 | |
| 484 | |
| 485 static ngx_uint_t | |
| 486 ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h) | |
| 487 { | |
| 488 u_long code; | |
| 489 ngx_int_t n; | |
| 490 | |
| 491 for (n = 0; n < ngx_last_process; n++) { | |
| 492 | |
| 493 if (ngx_processes[n].handle != h) { | |
| 494 continue; | |
| 495 } | |
| 496 | |
| 497 if (GetExitCodeProcess(h, &code) == 0) { | |
|
2908
234a8248812c
log GetExitCodeProcess()'s errno
Igor Sysoev <igor@sysoev.ru>
parents:
2823
diff
changeset
|
498 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| 2725 | 499 "GetExitCodeProcess(%P) failed", |
| 500 ngx_processes[n].pid); | |
| 501 } | |
| 502 | |
| 503 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, | |
| 504 "%s process %P exited with code %Xul", | |
| 505 ngx_processes[n].name, ngx_processes[n].pid, code); | |
| 506 | |
| 507 ngx_close_handle(ngx_processes[n].reopen); | |
| 508 ngx_close_handle(ngx_processes[n].quit); | |
| 509 ngx_close_handle(ngx_processes[n].term); | |
| 510 ngx_close_handle(h); | |
| 2627 | 511 |
| 2725 | 512 ngx_processes[n].handle = NULL; |
| 513 ngx_processes[n].term = NULL; | |
| 514 ngx_processes[n].quit = NULL; | |
| 515 ngx_processes[n].reopen = NULL; | |
| 516 | |
| 517 if (!ngx_processes[n].exiting && !ngx_terminate && !ngx_quit) { | |
| 518 | |
| 519 if (ngx_spawn_process(cycle, ngx_processes[n].name, n) | |
| 520 == NGX_INVALID_PID) | |
| 521 { | |
| 522 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 523 "can not respawn %s", ngx_processes[n].name); | |
| 524 | |
| 525 if (n == ngx_last_process - 1) { | |
| 526 ngx_last_process--; | |
| 527 } | |
| 528 } | |
| 529 } | |
| 2627 | 530 |
| 2725 | 531 goto found; |
| 532 } | |
| 533 | |
| 534 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unknown process handle %p", h); | |
| 535 | |
| 536 found: | |
| 537 | |
| 538 for (n = 0; n < ngx_last_process; n++) { | |
| 539 | |
| 540 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 2921 | 541 "process: %d %P %p e:%d j:%d", |
| 2725 | 542 n, |
| 543 ngx_processes[n].pid, | |
| 544 ngx_processes[n].handle, | |
| 545 ngx_processes[n].exiting, | |
| 546 ngx_processes[n].just_respawn); | |
| 547 | |
| 548 if (ngx_processes[n].handle) { | |
| 549 return 1; | |
| 550 } | |
| 2627 | 551 } |
| 552 | |
| 553 return 0; | |
| 554 } | |
| 555 | |
| 556 | |
| 557 static void | |
| 2725 | 558 ngx_master_process_exit(ngx_cycle_t *cycle) |
| 559 { | |
| 560 ngx_uint_t i; | |
| 561 | |
| 562 ngx_delete_pidfile(cycle); | |
| 563 | |
| 564 ngx_close_handle(ngx_cache_manager_mutex); | |
| 565 ngx_close_handle(ngx_stop_event); | |
| 566 ngx_close_handle(ngx_quit_event); | |
| 567 ngx_close_handle(ngx_reopen_event); | |
| 568 ngx_close_handle(ngx_reload_event); | |
| 569 ngx_close_handle(ngx_master_process_event); | |
| 570 | |
| 571 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
| 572 | |
| 573 for (i = 0; ngx_modules[i]; i++) { | |
| 574 if (ngx_modules[i]->exit_master) { | |
| 575 ngx_modules[i]->exit_master(cycle); | |
| 576 } | |
| 577 } | |
| 578 | |
| 579 ngx_destroy_pool(cycle->pool); | |
| 580 | |
| 581 exit(0); | |
| 582 } | |
| 583 | |
| 584 | |
| 585 static void | |
| 586 ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn) | |
| 2627 | 587 { |
| 2725 | 588 char wtevn[NGX_PROCESS_SYNC_NAME]; |
| 589 char wqevn[NGX_PROCESS_SYNC_NAME]; | |
| 590 char wroevn[NGX_PROCESS_SYNC_NAME]; | |
| 591 HANDLE mev, events[3]; | |
| 592 u_long nev, ev; | |
| 593 ngx_err_t err; | |
| 594 ngx_tid_t wtid, cmtid; | |
| 595 ngx_log_t *log; | |
| 596 | |
| 597 log = cycle->log; | |
| 598 | |
| 599 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "worker started"); | |
| 600 | |
| 601 ngx_sprintf((u_char *) wtevn, "ngx_worker_term_%ul%Z", ngx_pid); | |
| 602 events[0] = CreateEvent(NULL, 1, 0, wtevn); | |
| 603 if (events[0] == NULL) { | |
| 604 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 605 "CreateEvent(\"%s\") failed", wtevn); | |
| 606 goto failed; | |
| 607 } | |
| 608 | |
| 609 ngx_sprintf((u_char *) wqevn, "ngx_worker_quit_%ul%Z", ngx_pid); | |
| 610 events[1] = CreateEvent(NULL, 1, 0, wqevn); | |
| 611 if (events[1] == NULL) { | |
| 612 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 613 "CreateEvent(\"%s\") failed", wqevn); | |
| 614 goto failed; | |
| 615 } | |
| 616 | |
| 617 ngx_sprintf((u_char *) wroevn, "ngx_worker_reopen_%ul%Z", ngx_pid); | |
| 618 events[2] = CreateEvent(NULL, 1, 0, wroevn); | |
| 619 if (events[2] == NULL) { | |
| 620 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 621 "CreateEvent(\"%s\") failed", wroevn); | |
| 622 goto failed; | |
| 623 } | |
| 624 | |
| 625 mev = OpenEvent(EVENT_MODIFY_STATE, 0, mevn); | |
| 626 if (mev == NULL) { | |
| 627 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 628 "OpenEvent(\"%s\") failed", mevn); | |
| 629 goto failed; | |
| 630 } | |
| 631 | |
| 632 if (SetEvent(mev) == 0) { | |
| 633 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 634 "SetEvent(\"%s\") failed", mevn); | |
| 635 goto failed; | |
| 636 } | |
| 637 | |
| 638 | |
| 639 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
| 640 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
| 641 | |
| 642 ngx_cache_manager_mutex = OpenMutex(SYNCHRONIZE, 0, | |
| 643 ngx_cache_manager_mutex_name); | |
| 644 if (ngx_cache_manager_mutex == NULL) { | |
| 645 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 646 "OpenMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
| 647 goto failed; | |
| 648 } | |
| 649 | |
| 650 ngx_cache_manager_event = CreateEvent(NULL, 1, 0, NULL); | |
| 651 if (ngx_cache_manager_event == NULL) { | |
| 652 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 653 "CreateEvent(\"ngx_cache_manager_event\") failed"); | |
| 654 goto failed; | |
| 655 } | |
| 656 | |
| 657 | |
| 658 if (ngx_create_thread(&wtid, ngx_worker_thread, NULL, log) != 0) { | |
| 659 goto failed; | |
| 660 } | |
| 661 | |
| 662 if (ngx_create_thread(&cmtid, ngx_cache_manager_thread, NULL, log) != 0) { | |
| 663 goto failed; | |
| 664 } | |
| 665 | |
| 666 for ( ;; ) { | |
| 667 ev = WaitForMultipleObjects(3, events, 0, INFINITE); | |
| 668 | |
| 669 err = ngx_errno; | |
| 670 ngx_time_update(0, 0); | |
| 461 | 671 |
| 2725 | 672 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
| 673 "worker WaitForMultipleObjects: %ul", ev); | |
| 674 | |
| 675 if (ev == WAIT_OBJECT_0) { | |
| 676 ngx_terminate = 1; | |
| 677 ngx_log_error(NGX_LOG_NOTICE, log, 0, "exiting"); | |
| 678 | |
| 679 if (ResetEvent(events[0]) == 0) { | |
| 680 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 681 "ResetEvent(\"%s\") failed", wtevn); | |
| 682 } | |
| 683 | |
| 684 break; | |
| 685 } | |
| 686 | |
| 687 if (ev == WAIT_OBJECT_0 + 1) { | |
| 688 ngx_quit = 1; | |
| 689 ngx_log_error(NGX_LOG_NOTICE, log, 0, "gracefully shutting down"); | |
| 690 break; | |
| 691 } | |
| 692 | |
| 693 if (ev == WAIT_OBJECT_0 + 2) { | |
| 694 ngx_reopen = 1; | |
| 695 ngx_log_error(NGX_LOG_NOTICE, log, 0, "reopening logs"); | |
| 696 | |
| 697 if (ResetEvent(events[2]) == 0) { | |
| 698 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 699 "ResetEvent(\"%s\") failed", wroevn); | |
| 700 } | |
| 701 | |
| 702 continue; | |
| 703 } | |
| 704 | |
| 705 if (ev == WAIT_FAILED) { | |
| 706 ngx_log_error(NGX_LOG_ALERT, log, err, | |
| 707 "WaitForMultipleObjects() failed"); | |
| 708 | |
| 709 goto failed; | |
| 710 } | |
| 711 } | |
| 712 | |
| 713 /* wait threads */ | |
| 461 | 714 |
| 2725 | 715 if (SetEvent(ngx_cache_manager_event) == 0) { |
| 716 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 717 "SetEvent(\"ngx_cache_manager_event\") failed"); | |
| 718 } | |
| 719 | |
| 720 events[1] = wtid; | |
| 721 events[2] = cmtid; | |
| 722 | |
| 723 nev = 3; | |
| 724 | |
| 725 for ( ;; ) { | |
| 726 ev = WaitForMultipleObjects(nev, events, 0, INFINITE); | |
| 727 | |
| 728 err = ngx_errno; | |
| 729 ngx_time_update(0, 0); | |
| 730 | |
| 731 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
| 732 "worker exit WaitForMultipleObjects: %ul", ev); | |
| 733 | |
| 734 if (ev == WAIT_OBJECT_0) { | |
| 735 break; | |
| 736 } | |
| 737 | |
| 738 if (ev == WAIT_OBJECT_0 + 1) { | |
| 739 if (nev == 2) { | |
| 740 break; | |
| 741 } | |
| 742 | |
| 743 events[1] = events[2]; | |
| 744 nev = 2; | |
| 745 continue; | |
| 746 } | |
| 747 | |
| 748 if (ev == WAIT_OBJECT_0 + 2) { | |
| 749 nev = 2; | |
| 750 continue; | |
| 751 } | |
| 752 | |
| 753 if (ev == WAIT_FAILED) { | |
| 754 ngx_log_error(NGX_LOG_ALERT, log, err, | |
| 755 "WaitForMultipleObjects() failed"); | |
| 756 break; | |
| 757 } | |
| 461 | 758 } |
| 759 | |
| 2725 | 760 ngx_close_handle(ngx_cache_manager_event); |
| 761 ngx_close_handle(events[0]); | |
| 762 ngx_close_handle(events[1]); | |
| 763 ngx_close_handle(events[2]); | |
| 764 ngx_close_handle(mev); | |
| 765 | |
| 766 ngx_worker_process_exit(cycle); | |
| 767 | |
| 768 failed: | |
| 769 | |
| 770 exit(2); | |
| 771 } | |
| 772 | |
| 773 | |
| 774 static ngx_thread_value_t __stdcall | |
| 775 ngx_worker_thread(void *data) | |
| 776 { | |
| 777 ngx_int_t n; | |
| 778 ngx_uint_t i; | |
| 779 ngx_cycle_t *cycle; | |
| 780 ngx_connection_t *c; | |
| 781 | |
| 782 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 783 | |
| 784 ngx_init_temp_number(); | |
| 785 | |
| 786 for (n = 0; ngx_modules[n]; n++) { | |
| 787 if (ngx_modules[n]->init_process) { | |
| 788 if (ngx_modules[n]->init_process(cycle) == NGX_ERROR) { | |
| 789 /* fatal */ | |
| 790 exit(2); | |
| 791 } | |
| 792 } | |
| 793 } | |
| 794 | |
| 795 while (!ngx_quit) { | |
| 796 | |
| 797 if (ngx_exiting) { | |
| 798 | |
| 799 c = cycle->connections; | |
| 800 | |
| 801 for (i = 0; i < cycle->connection_n; i++) { | |
| 802 | |
| 803 /* THREAD: lock */ | |
| 804 | |
| 805 if (c[i].fd != -1 && c[i].idle) { | |
| 806 c[i].close = 1; | |
| 807 c[i].read->handler(c[i].read); | |
| 808 } | |
| 809 } | |
| 810 | |
| 811 if (ngx_event_timer_rbtree.root | |
| 812 == ngx_event_timer_rbtree.sentinel) | |
| 813 { | |
| 814 break; | |
| 815 } | |
| 816 } | |
| 817 | |
| 818 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "worker cycle"); | |
| 819 | |
| 820 ngx_process_events_and_timers(cycle); | |
| 821 | |
| 822 if (ngx_terminate) { | |
| 823 return 0; | |
| 824 } | |
| 825 | |
| 826 if (ngx_quit) { | |
| 827 ngx_quit = 0; | |
| 828 | |
| 829 if (!ngx_exiting) { | |
| 830 ngx_close_listening_sockets(cycle); | |
| 831 ngx_exiting = 1; | |
| 832 } | |
| 833 } | |
| 834 | |
| 835 if (ngx_reopen) { | |
| 836 ngx_reopen = 0; | |
| 837 ngx_reopen_files(cycle, -1); | |
| 838 } | |
| 839 } | |
| 840 | |
| 841 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 842 | |
| 843 return 0; | |
| 844 } | |
| 845 | |
| 846 | |
| 847 static void | |
| 848 ngx_worker_process_exit(ngx_cycle_t *cycle) | |
| 849 { | |
| 850 ngx_uint_t i; | |
| 851 ngx_connection_t *c; | |
| 852 | |
| 853 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
| 854 | |
| 855 for (i = 0; ngx_modules[i]; i++) { | |
| 856 if (ngx_modules[i]->exit_process) { | |
| 857 ngx_modules[i]->exit_process(cycle); | |
| 858 } | |
| 859 } | |
| 860 | |
| 861 if (ngx_exiting) { | |
| 862 c = cycle->connections; | |
| 863 for (i = 0; i < cycle->connection_n; i++) { | |
| 864 if (c[i].fd != -1 | |
| 865 && c[i].read | |
| 866 && !c[i].read->accept | |
| 867 && !c[i].read->channel | |
| 868 && !c[i].read->resolver) | |
| 869 { | |
| 870 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 871 "open socket #%d left in connection %ui", | |
| 872 c[i].fd, i); | |
| 873 } | |
| 874 } | |
| 461 | 875 } |
| 876 | |
| 2725 | 877 ngx_destroy_pool(cycle->pool); |
| 878 | |
| 879 exit(0); | |
| 880 } | |
| 881 | |
| 882 | |
| 883 static ngx_thread_value_t __stdcall | |
| 884 ngx_cache_manager_thread(void *data) | |
| 885 { | |
| 886 u_long ev; | |
| 887 HANDLE events[2]; | |
| 888 ngx_err_t err; | |
| 889 ngx_cycle_t *cycle; | |
| 890 | |
| 891 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 892 | |
| 893 events[0] = ngx_cache_manager_event; | |
| 894 events[1] = ngx_cache_manager_mutex; | |
| 895 | |
| 896 for ( ;; ) { | |
| 897 ev = WaitForMultipleObjects(2, events, 0, INFINITE); | |
| 898 | |
| 899 err = ngx_errno; | |
| 900 ngx_time_update(0, 0); | |
| 901 | |
| 902 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 903 "cache manager WaitForMultipleObjects: %ul", ev); | |
| 904 | |
| 905 if (ev == WAIT_FAILED) { | |
| 906 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 907 "WaitForMultipleObjects() failed"); | |
| 908 } | |
| 909 | |
| 910 /* | |
| 911 * ev == WAIT_OBJECT_0 | |
| 912 * ev == WAIT_OBJECT_0 + 1 | |
| 913 * ev == WAIT_ABANDONED_0 + 1 | |
| 914 */ | |
| 915 | |
| 916 if (ngx_terminate || ngx_quit) { | |
| 917 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 918 return 0; | |
| 919 } | |
| 920 | |
| 921 break; | |
| 922 } | |
| 923 | |
| 924 for ( ;; ) { | |
| 925 | |
| 926 if (ngx_terminate || ngx_quit) { | |
| 927 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 928 break; | |
| 929 } | |
| 930 | |
| 931 ngx_cache_manager_process_handler(); | |
| 932 } | |
| 933 | |
| 934 if (ReleaseMutex(ngx_cache_manager_mutex) == 0) { | |
| 935 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 936 "ReleaseMutex() failed"); | |
| 937 } | |
| 938 | |
| 939 return 0; | |
| 940 } | |
| 941 | |
| 942 | |
| 943 static void | |
| 944 ngx_cache_manager_process_handler(void) | |
| 945 { | |
| 946 u_long ev; | |
| 947 time_t next, n; | |
| 948 ngx_uint_t i; | |
| 949 ngx_path_t **path; | |
| 950 | |
| 951 next = 60 * 60; | |
| 952 | |
| 953 path = ngx_cycle->pathes.elts; | |
| 954 for (i = 0; i < ngx_cycle->pathes.nelts; i++) { | |
| 955 | |
| 956 if (path[i]->manager) { | |
| 957 n = path[i]->manager(path[i]->data); | |
| 958 | |
| 959 next = (n <= next) ? n : next; | |
| 960 | |
| 961 ngx_time_update(0, 0); | |
| 962 } | |
| 963 } | |
| 964 | |
| 965 if (next == 0) { | |
| 966 next = 1; | |
| 967 } | |
| 968 | |
| 969 ev = WaitForSingleObject(ngx_cache_manager_event, (u_long) next * 1000); | |
| 970 | |
| 971 if (ev != WAIT_TIMEOUT) { | |
| 972 | |
| 973 ngx_time_update(0, 0); | |
| 974 | |
| 975 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
| 976 "cache manager WaitForSingleObject: %ul", ev); | |
| 977 } | |
| 978 } | |
| 979 | |
| 980 | |
| 981 void | |
| 982 ngx_single_process_cycle(ngx_cycle_t *cycle) | |
| 983 { | |
| 984 ngx_int_t i; | |
| 985 ngx_tid_t tid; | |
| 986 | |
| 987 ngx_init_temp_number(); | |
| 988 | |
| 989 for (i = 0; ngx_modules[i]; i++) { | |
| 990 if (ngx_modules[i]->init_process) { | |
| 991 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { | |
| 992 /* fatal */ | |
| 993 exit(2); | |
| 994 } | |
| 995 } | |
| 996 } | |
| 997 | |
| 998 ngx_process_init(cycle); | |
| 999 | |
| 1000 ngx_console_init(cycle); | |
| 1001 | |
| 1002 if (ngx_create_events(cycle) != NGX_OK) { | |
| 461 | 1003 exit(2); |
| 1004 } | |
| 1005 | |
| 2725 | 1006 if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) { |
| 461 | 1007 /* fatal */ |
| 1008 exit(2); | |
| 1009 } | |
| 1010 | |
| 2725 | 1011 /* STUB */ |
| 1012 WaitForSingleObject(ngx_stop_event, INFINITE); | |
| 461 | 1013 } |
| 1014 | |
| 1015 | |
| 2725 | 1016 ngx_int_t |
|
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1017 ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid) |
| 461 | 1018 { |
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1019 HANDLE ev; |
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1020 ngx_int_t rc; |
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1021 char evn[NGX_PROCESS_SYNC_NAME]; |
| 461 | 1022 |
| 2725 | 1023 ngx_sprintf((u_char *) evn, "ngx_%s_%ul%Z", sig, pid); |
| 1024 | |
| 1025 ev = OpenEvent(EVENT_MODIFY_STATE, 0, evn); | |
| 1026 if (ev == NULL) { | |
| 1027 ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, | |
| 1028 "OpenEvent(\"%s\") failed", evn); | |
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1029 return 1; |
| 2725 | 1030 } |
| 461 | 1031 |
| 2725 | 1032 if (SetEvent(ev) == 0) { |
| 1033 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 1034 "SetEvent(\"%s\") failed", evn); | |
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1035 rc = 1; |
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1036 |
| 2725 | 1037 } else { |
| 1038 rc = 0; | |
| 1039 } | |
| 1040 | |
| 1041 ngx_close_handle(ev); | |
| 1042 | |
| 1043 return rc; | |
| 1044 } | |
| 461 | 1045 |
| 1046 | |
| 2725 | 1047 void |
| 1048 ngx_close_handle(HANDLE h) | |
| 1049 { | |
| 1050 if (CloseHandle(h) == 0) { | |
| 1051 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, | |
| 1052 "CloseHandle(%p) failed", h); | |
| 461 | 1053 } |
| 1054 } |