Mercurial > hg > nginx
annotate src/os/win32/ngx_process_cycle.c @ 3022:56407044c593
win32 cache loader support
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Tue, 11 Aug 2009 08:14:43 +0000 |
| parents | cf1d868787a1 |
| children | f9d97311c652 |
| 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); | |
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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); | |
| 3022 | 28 static ngx_thread_value_t __stdcall ngx_cache_loader_thread(void *data); |
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30 |
| 2725 | 31 ngx_uint_t ngx_process; |
| 32 ngx_pid_t ngx_pid; | |
| 33 ngx_uint_t ngx_threaded; | |
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34 |
| 2725 | 35 ngx_uint_t ngx_inherited; |
| 36 ngx_pid_t ngx_new_binary; | |
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37 |
| 2725 | 38 sig_atomic_t ngx_terminate; |
| 39 sig_atomic_t ngx_quit; | |
| 40 sig_atomic_t ngx_reopen; | |
| 41 sig_atomic_t ngx_reconfigure; | |
| 42 ngx_uint_t ngx_exiting; | |
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44 |
| 2725 | 45 HANDLE ngx_master_process_event; |
| 46 char ngx_master_process_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 47 | |
| 48 static HANDLE ngx_stop_event; | |
| 49 static char ngx_stop_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 50 static HANDLE ngx_quit_event; | |
| 51 static char ngx_quit_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 52 static HANDLE ngx_reopen_event; | |
| 53 static char ngx_reopen_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 54 static HANDLE ngx_reload_event; | |
| 55 static char ngx_reload_event_name[NGX_PROCESS_SYNC_NAME]; | |
| 56 | |
| 57 HANDLE ngx_cache_manager_mutex; | |
| 58 char ngx_cache_manager_mutex_name[NGX_PROCESS_SYNC_NAME]; | |
| 59 HANDLE ngx_cache_manager_event; | |
| 461 | 60 |
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61 |
| 509 | 62 void |
| 63 ngx_master_process_cycle(ngx_cycle_t *cycle) | |
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64 { |
| 2725 | 65 u_long nev, ev, timeout; |
| 66 ngx_err_t err; | |
| 67 ngx_int_t n; | |
| 68 ngx_msec_t timer; | |
| 69 ngx_uint_t live; | |
| 70 HANDLE events[MAXIMUM_WAIT_OBJECTS]; | |
| 71 | |
| 72 ngx_process_init(cycle); | |
| 73 | |
| 74 ngx_sprintf((u_char *) ngx_master_process_event_name, | |
| 75 "ngx_master_%s%Z", ngx_unique); | |
| 76 | |
| 77 if (ngx_process == NGX_PROCESS_WORKER) { | |
| 78 ngx_worker_process_cycle(cycle, ngx_master_process_event_name); | |
| 79 return; | |
| 80 } | |
| 81 | |
| 82 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "master started"); | |
| 83 | |
| 84 ngx_console_init(cycle); | |
| 85 | |
| 86 SetEnvironmentVariable("ngx_unique", ngx_unique); | |
| 87 | |
| 88 ngx_master_process_event = CreateEvent(NULL, 1, 0, | |
| 89 ngx_master_process_event_name); | |
| 90 if (ngx_master_process_event == NULL) { | |
| 91 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 92 "CreateEvent(\"%s\") failed", | |
| 93 ngx_master_process_event_name); | |
| 94 exit(2); | |
| 95 } | |
| 96 | |
| 97 if (ngx_create_events(cycle) != NGX_OK) { | |
| 98 exit(2); | |
| 99 } | |
| 100 | |
| 101 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
| 102 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
| 103 | |
| 104 ngx_cache_manager_mutex = CreateMutex(NULL, 0, | |
| 105 ngx_cache_manager_mutex_name); | |
| 106 if (ngx_cache_manager_mutex == NULL) { | |
| 107 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 108 "CreateMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
| 109 exit(2); | |
| 110 } | |
| 111 | |
| 112 | |
| 113 events[0] = ngx_stop_event; | |
| 114 events[1] = ngx_quit_event; | |
| 115 events[2] = ngx_reopen_event; | |
| 116 events[3] = ngx_reload_event; | |
| 117 | |
| 118 ngx_close_listening_sockets(cycle); | |
| 119 | |
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120 if (ngx_start_worker_processes(cycle, NGX_PROCESS_RESPAWN) == 0) { |
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121 exit(2); |
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122 } |
| 2725 | 123 |
| 124 timer = 0; | |
| 125 timeout = INFINITE; | |
| 126 | |
| 127 for ( ;; ) { | |
| 128 | |
| 129 nev = 4; | |
| 130 for (n = 0; n < ngx_last_process; n++) { | |
| 131 if (ngx_processes[n].handle) { | |
| 132 events[nev++] = ngx_processes[n].handle; | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 if (timer) { | |
| 137 timeout = timer > ngx_current_msec ? timer - ngx_current_msec : 0; | |
| 138 } | |
| 139 | |
| 140 ev = WaitForMultipleObjects(nev, events, 0, timeout); | |
| 141 | |
| 142 err = ngx_errno; | |
| 143 ngx_time_update(0, 0); | |
| 144 | |
| 145 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 146 "master WaitForMultipleObjects: %ul", ev); | |
| 147 | |
| 148 if (ev == WAIT_OBJECT_0) { | |
| 149 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
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150 |
| 2725 | 151 if (ResetEvent(ngx_stop_event) == 0) { |
| 152 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 153 "ResetEvent(\"%s\") failed", ngx_stop_event_name); | |
| 154 } | |
| 155 | |
| 156 if (timer == 0) { | |
| 157 timer = ngx_current_msec + 5000; | |
| 158 } | |
| 159 | |
| 160 ngx_terminate = 1; | |
| 161 ngx_quit_worker_processes(cycle, 0); | |
| 162 | |
| 163 continue; | |
| 164 } | |
| 165 | |
| 166 if (ev == WAIT_OBJECT_0 + 1) { | |
| 167 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "shutting down"); | |
| 168 | |
| 169 if (ResetEvent(ngx_quit_event) == 0) { | |
| 170 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 171 "ResetEvent(\"%s\") failed", ngx_quit_event_name); | |
| 172 } | |
| 173 | |
| 174 ngx_quit = 1; | |
| 175 ngx_quit_worker_processes(cycle, 0); | |
| 176 | |
| 177 continue; | |
| 178 } | |
| 179 | |
| 180 if (ev == WAIT_OBJECT_0 + 2) { | |
| 181 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs"); | |
| 182 | |
| 183 if (ResetEvent(ngx_reopen_event) == 0) { | |
| 184 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 185 "ResetEvent(\"%s\") failed", | |
| 186 ngx_reopen_event_name); | |
| 187 } | |
| 188 | |
| 189 ngx_reopen_files(cycle, -1); | |
| 190 ngx_reopen_worker_processes(cycle); | |
| 191 | |
| 192 continue; | |
| 193 } | |
| 194 | |
| 195 if (ev == WAIT_OBJECT_0 + 3) { | |
| 196 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring"); | |
| 197 | |
| 198 if (ResetEvent(ngx_reload_event) == 0) { | |
| 199 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 200 "ResetEvent(\"%s\") failed", | |
| 201 ngx_reload_event_name); | |
| 202 } | |
| 203 | |
| 2823 | 204 cycle = ngx_init_cycle(cycle); |
| 205 if (cycle == NULL) { | |
| 206 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 207 continue; | |
| 208 } | |
| 209 | |
| 210 ngx_cycle = cycle; | |
| 211 | |
| 2928 | 212 ngx_close_listening_sockets(cycle); |
| 213 | |
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214 if (ngx_start_worker_processes(cycle, NGX_PROCESS_JUST_RESPAWN)) { |
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215 ngx_quit_worker_processes(cycle, 1); |
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216 } |
| 2725 | 217 |
| 218 continue; | |
| 219 } | |
| 220 | |
| 221 if (ev > WAIT_OBJECT_0 + 3 && ev < WAIT_OBJECT_0 + nev) { | |
| 222 | |
| 223 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "reap worker"); | |
| 224 | |
| 225 live = ngx_reap_worker(cycle, events[ev]); | |
| 226 | |
| 227 if (!live && (ngx_terminate || ngx_quit)) { | |
| 228 ngx_master_process_exit(cycle); | |
| 229 } | |
| 230 | |
| 231 continue; | |
| 232 } | |
| 233 | |
| 234 if (ev == WAIT_TIMEOUT) { | |
| 235 ngx_terminate_worker_processes(cycle); | |
| 236 | |
| 237 ngx_master_process_exit(cycle); | |
| 238 } | |
| 239 | |
| 240 if (ev == WAIT_FAILED) { | |
| 241 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 242 "WaitForMultipleObjects() failed"); | |
| 243 | |
| 244 continue; | |
| 245 } | |
| 246 | |
| 247 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 248 "WaitForMultipleObjects() returned unexpected value %ul", ev); | |
| 249 } | |
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250 } |
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252 |
| 2725 | 253 static void |
| 254 ngx_process_init(ngx_cycle_t *cycle) | |
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255 { |
| 461 | 256 ngx_err_t err; |
| 257 ngx_core_conf_t *ccf; | |
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258 |
| 461 | 259 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| 260 | |
| 2627 | 261 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle) |
| 262 != NGX_OK) | |
| 577 | 263 { |
| 461 | 264 /* fatal */ |
| 265 exit(2); | |
| 266 } | |
| 267 | |
| 268 err = ngx_thread_key_create(&ngx_core_tls_key); | |
| 269 if (err != 0) { | |
| 270 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 271 ngx_thread_key_create_n " failed"); | |
| 272 /* fatal */ | |
| 273 exit(2); | |
| 274 } | |
| 2725 | 275 } |
| 461 | 276 |
| 2725 | 277 |
| 278 static void | |
| 279 ngx_console_init(ngx_cycle_t *cycle) | |
| 280 { | |
| 281 ngx_core_conf_t *ccf; | |
| 282 | |
| 283 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
| 284 | |
| 285 if (ccf->daemon) { | |
| 286 if (FreeConsole() == 0) { | |
| 287 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 288 "FreeConsole() failed"); | |
| 289 } | |
| 290 | |
| 291 return; | |
| 292 } | |
| 293 | |
| 294 if (SetConsoleCtrlHandler(ngx_console_handler, 1) == 0) { | |
| 295 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 296 "SetConsoleCtrlHandler() failed"); | |
| 297 } | |
| 298 } | |
| 299 | |
| 300 | |
| 301 static int __stdcall | |
| 302 ngx_console_handler(u_long type) | |
| 303 { | |
| 304 char *msg; | |
| 305 | |
| 306 switch (type) { | |
| 307 | |
| 308 case CTRL_C_EVENT: | |
| 309 msg = "Ctrl-C pressed, exiting"; | |
| 310 break; | |
| 311 | |
| 312 case CTRL_BREAK_EVENT: | |
| 313 msg = "Ctrl-Break pressed, exiting"; | |
| 314 break; | |
| 315 | |
| 316 case CTRL_CLOSE_EVENT: | |
| 317 msg = "console closing, exiting"; | |
| 318 break; | |
| 319 | |
| 320 case CTRL_LOGOFF_EVENT: | |
| 321 msg = "user logs off, exiting"; | |
| 322 break; | |
| 323 | |
| 324 default: | |
| 325 return 0; | |
| 326 } | |
| 327 | |
| 328 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, msg); | |
| 329 | |
| 330 if (ngx_stop_event == NULL) { | |
| 331 return 1; | |
| 332 } | |
| 333 | |
| 334 if (SetEvent(ngx_stop_event) == 0) { | |
| 335 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
| 336 "SetEvent(\"%s\") failed", ngx_stop_event_name); | |
| 2627 | 337 } |
| 338 | |
| 2725 | 339 return 1; |
| 340 } | |
| 341 | |
| 342 | |
| 343 static ngx_int_t | |
| 344 ngx_create_events(ngx_cycle_t *cycle) | |
| 345 { | |
| 346 ngx_sprintf((u_char *) ngx_stop_event_name, "ngx_stop_%s%Z", ngx_unique); | |
| 347 | |
| 348 ngx_stop_event = CreateEvent(NULL, 1, 0, ngx_stop_event_name); | |
| 349 if (ngx_stop_event == NULL) { | |
| 350 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 351 "CreateEvent(\"%s\") failed", ngx_stop_event_name); | |
| 352 return NGX_ERROR; | |
| 353 } | |
| 354 | |
| 355 | |
| 356 ngx_sprintf((u_char *) ngx_quit_event_name, "ngx_quit_%s%Z", ngx_unique); | |
| 357 | |
| 358 ngx_quit_event = CreateEvent(NULL, 1, 0, ngx_quit_event_name); | |
| 359 if (ngx_quit_event == NULL) { | |
| 360 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 361 "CreateEvent(\"%s\") failed", ngx_quit_event_name); | |
| 362 return NGX_ERROR; | |
| 363 } | |
| 364 | |
| 365 | |
| 366 ngx_sprintf((u_char *) ngx_reopen_event_name, | |
| 367 "ngx_reopen_%s%Z", ngx_unique); | |
| 368 | |
| 369 ngx_reopen_event = CreateEvent(NULL, 1, 0, ngx_reopen_event_name); | |
| 370 if (ngx_reopen_event == NULL) { | |
| 371 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 372 "CreateEvent(\"%s\") failed", ngx_reopen_event_name); | |
| 373 return NGX_ERROR; | |
| 374 } | |
| 375 | |
| 376 | |
| 377 ngx_sprintf((u_char *) ngx_reload_event_name, | |
| 378 "ngx_reload_%s%Z", ngx_unique); | |
| 379 | |
| 380 ngx_reload_event = CreateEvent(NULL, 1, 0, ngx_reload_event_name); | |
| 381 if (ngx_reload_event == NULL) { | |
| 382 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 383 "CreateEvent(\"%s\") failed", ngx_reload_event_name); | |
| 384 return NGX_ERROR; | |
| 385 } | |
| 386 | |
| 387 return NGX_OK; | |
| 388 } | |
| 389 | |
| 390 | |
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391 static ngx_int_t |
| 2725 | 392 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type) |
| 393 { | |
| 394 ngx_int_t n; | |
| 395 ngx_core_conf_t *ccf; | |
| 396 | |
| 397 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes"); | |
| 398 | |
| 399 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
| 400 | |
| 401 for (n = 0; n < ccf->worker_processes; n++) { | |
| 402 if (ngx_spawn_process(cycle, "worker", type) == NGX_INVALID_PID) { | |
|
2922
f0604d0b28a6
*) exit if no workers could not be started
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parents:
2921
diff
changeset
|
403 break; |
| 2725 | 404 } |
| 405 } | |
|
2922
f0604d0b28a6
*) exit if no workers could not be started
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parents:
2921
diff
changeset
|
406 |
|
f0604d0b28a6
*) exit if no workers could not be started
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parents:
2921
diff
changeset
|
407 return n; |
| 2627 | 408 } |
| 409 | |
| 410 | |
| 2725 | 411 static void |
| 412 ngx_reopen_worker_processes(ngx_cycle_t *cycle) | |
| 413 { | |
| 414 ngx_int_t n; | |
| 415 | |
| 416 for (n = 0; n < ngx_last_process; n++) { | |
| 417 | |
| 418 if (ngx_processes[n].handle == NULL) { | |
| 419 continue; | |
| 420 } | |
| 421 | |
| 422 if (SetEvent(ngx_processes[n].reopen) == 0) { | |
| 423 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 424 "SetEvent(\"%s\") failed", | |
| 425 ngx_processes[n].reopen_event); | |
| 426 } | |
| 427 } | |
| 428 } | |
| 429 | |
| 430 | |
| 431 static void | |
| 432 ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old) | |
| 2627 | 433 { |
| 2725 | 434 ngx_int_t n; |
| 435 | |
| 436 for (n = 0; n < ngx_last_process; n++) { | |
| 437 | |
| 438 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 2921 | 439 "process: %d %P %p e:%d j:%d", |
| 2725 | 440 n, |
| 441 ngx_processes[n].pid, | |
| 442 ngx_processes[n].handle, | |
| 443 ngx_processes[n].exiting, | |
|
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
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diff
changeset
|
444 ngx_processes[n].just_spawn); |
| 2725 | 445 |
|
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
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parents:
2928
diff
changeset
|
446 if (old && ngx_processes[n].just_spawn) { |
|
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2928
diff
changeset
|
447 ngx_processes[n].just_spawn = 0; |
| 2725 | 448 continue; |
| 449 } | |
| 450 | |
| 451 if (ngx_processes[n].handle == NULL) { | |
| 452 continue; | |
| 453 } | |
| 454 | |
| 455 if (SetEvent(ngx_processes[n].quit) == 0) { | |
| 456 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 457 "SetEvent(\"%s\") failed", | |
| 458 ngx_processes[n].quit_event); | |
| 459 } | |
| 460 | |
| 461 ngx_processes[n].exiting = 1; | |
| 462 } | |
| 463 } | |
| 464 | |
| 465 | |
| 466 static void | |
| 467 ngx_terminate_worker_processes(ngx_cycle_t *cycle) | |
| 468 { | |
| 469 ngx_int_t n; | |
| 470 | |
| 471 for (n = 0; n < ngx_last_process; n++) { | |
| 472 | |
| 473 if (ngx_processes[n].handle == NULL) { | |
| 474 continue; | |
| 475 } | |
| 476 | |
| 477 if (TerminateProcess(ngx_processes[n].handle, 0) == 0) { | |
| 478 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 479 "TerminateProcess(\"%p\") failed", | |
| 480 ngx_processes[n].handle); | |
| 481 } | |
| 482 | |
| 483 ngx_processes[n].exiting = 1; | |
| 2627 | 484 |
| 2725 | 485 ngx_close_handle(ngx_processes[n].reopen); |
| 486 ngx_close_handle(ngx_processes[n].quit); | |
| 487 ngx_close_handle(ngx_processes[n].term); | |
| 488 ngx_close_handle(ngx_processes[n].handle); | |
| 489 } | |
| 490 } | |
| 491 | |
| 492 | |
| 493 static ngx_uint_t | |
| 494 ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h) | |
| 495 { | |
| 496 u_long code; | |
| 497 ngx_int_t n; | |
| 498 | |
| 499 for (n = 0; n < ngx_last_process; n++) { | |
| 500 | |
| 501 if (ngx_processes[n].handle != h) { | |
| 502 continue; | |
| 503 } | |
| 504 | |
| 505 if (GetExitCodeProcess(h, &code) == 0) { | |
|
2908
234a8248812c
log GetExitCodeProcess()'s errno
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2823
diff
changeset
|
506 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| 2725 | 507 "GetExitCodeProcess(%P) failed", |
| 508 ngx_processes[n].pid); | |
| 509 } | |
| 510 | |
| 511 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, | |
| 512 "%s process %P exited with code %Xul", | |
| 513 ngx_processes[n].name, ngx_processes[n].pid, code); | |
| 514 | |
| 515 ngx_close_handle(ngx_processes[n].reopen); | |
| 516 ngx_close_handle(ngx_processes[n].quit); | |
| 517 ngx_close_handle(ngx_processes[n].term); | |
| 518 ngx_close_handle(h); | |
| 2627 | 519 |
| 2725 | 520 ngx_processes[n].handle = NULL; |
| 521 ngx_processes[n].term = NULL; | |
| 522 ngx_processes[n].quit = NULL; | |
| 523 ngx_processes[n].reopen = NULL; | |
| 524 | |
| 525 if (!ngx_processes[n].exiting && !ngx_terminate && !ngx_quit) { | |
| 526 | |
| 527 if (ngx_spawn_process(cycle, ngx_processes[n].name, n) | |
| 528 == NGX_INVALID_PID) | |
| 529 { | |
| 530 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 531 "can not respawn %s", ngx_processes[n].name); | |
| 532 | |
| 533 if (n == ngx_last_process - 1) { | |
| 534 ngx_last_process--; | |
| 535 } | |
| 536 } | |
| 537 } | |
| 2627 | 538 |
| 2725 | 539 goto found; |
| 540 } | |
| 541 | |
| 542 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unknown process handle %p", h); | |
| 543 | |
| 544 found: | |
| 545 | |
| 546 for (n = 0; n < ngx_last_process; n++) { | |
| 547 | |
| 548 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 2921 | 549 "process: %d %P %p e:%d j:%d", |
| 2725 | 550 n, |
| 551 ngx_processes[n].pid, | |
| 552 ngx_processes[n].handle, | |
| 553 ngx_processes[n].exiting, | |
|
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2928
diff
changeset
|
554 ngx_processes[n].just_spawn); |
| 2725 | 555 |
| 556 if (ngx_processes[n].handle) { | |
| 557 return 1; | |
| 558 } | |
| 2627 | 559 } |
| 560 | |
| 561 return 0; | |
| 562 } | |
| 563 | |
| 564 | |
| 565 static void | |
| 2725 | 566 ngx_master_process_exit(ngx_cycle_t *cycle) |
| 567 { | |
| 568 ngx_uint_t i; | |
| 569 | |
| 570 ngx_delete_pidfile(cycle); | |
| 571 | |
| 572 ngx_close_handle(ngx_cache_manager_mutex); | |
| 573 ngx_close_handle(ngx_stop_event); | |
| 574 ngx_close_handle(ngx_quit_event); | |
| 575 ngx_close_handle(ngx_reopen_event); | |
| 576 ngx_close_handle(ngx_reload_event); | |
| 577 ngx_close_handle(ngx_master_process_event); | |
| 578 | |
| 579 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
| 580 | |
| 581 for (i = 0; ngx_modules[i]; i++) { | |
| 582 if (ngx_modules[i]->exit_master) { | |
| 583 ngx_modules[i]->exit_master(cycle); | |
| 584 } | |
| 585 } | |
| 586 | |
| 587 ngx_destroy_pool(cycle->pool); | |
| 588 | |
| 589 exit(0); | |
| 590 } | |
| 591 | |
| 592 | |
| 593 static void | |
| 594 ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn) | |
| 2627 | 595 { |
| 2725 | 596 char wtevn[NGX_PROCESS_SYNC_NAME]; |
| 597 char wqevn[NGX_PROCESS_SYNC_NAME]; | |
| 598 char wroevn[NGX_PROCESS_SYNC_NAME]; | |
| 599 HANDLE mev, events[3]; | |
| 600 u_long nev, ev; | |
| 601 ngx_err_t err; | |
| 602 ngx_tid_t wtid, cmtid; | |
| 603 ngx_log_t *log; | |
| 604 | |
| 605 log = cycle->log; | |
| 606 | |
| 607 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "worker started"); | |
| 608 | |
| 609 ngx_sprintf((u_char *) wtevn, "ngx_worker_term_%ul%Z", ngx_pid); | |
| 610 events[0] = CreateEvent(NULL, 1, 0, wtevn); | |
| 611 if (events[0] == NULL) { | |
| 612 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 613 "CreateEvent(\"%s\") failed", wtevn); | |
| 614 goto failed; | |
| 615 } | |
| 616 | |
| 617 ngx_sprintf((u_char *) wqevn, "ngx_worker_quit_%ul%Z", ngx_pid); | |
| 618 events[1] = CreateEvent(NULL, 1, 0, wqevn); | |
| 619 if (events[1] == NULL) { | |
| 620 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 621 "CreateEvent(\"%s\") failed", wqevn); | |
| 622 goto failed; | |
| 623 } | |
| 624 | |
| 625 ngx_sprintf((u_char *) wroevn, "ngx_worker_reopen_%ul%Z", ngx_pid); | |
| 626 events[2] = CreateEvent(NULL, 1, 0, wroevn); | |
| 627 if (events[2] == NULL) { | |
| 628 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 629 "CreateEvent(\"%s\") failed", wroevn); | |
| 630 goto failed; | |
| 631 } | |
| 632 | |
| 633 mev = OpenEvent(EVENT_MODIFY_STATE, 0, mevn); | |
| 634 if (mev == NULL) { | |
| 635 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 636 "OpenEvent(\"%s\") failed", mevn); | |
| 637 goto failed; | |
| 638 } | |
| 639 | |
| 640 if (SetEvent(mev) == 0) { | |
| 641 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 642 "SetEvent(\"%s\") failed", mevn); | |
| 643 goto failed; | |
| 644 } | |
| 645 | |
| 646 | |
| 647 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
| 648 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
| 649 | |
| 650 ngx_cache_manager_mutex = OpenMutex(SYNCHRONIZE, 0, | |
| 651 ngx_cache_manager_mutex_name); | |
| 652 if (ngx_cache_manager_mutex == NULL) { | |
| 653 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 654 "OpenMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
| 655 goto failed; | |
| 656 } | |
| 657 | |
| 658 ngx_cache_manager_event = CreateEvent(NULL, 1, 0, NULL); | |
| 659 if (ngx_cache_manager_event == NULL) { | |
| 660 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 661 "CreateEvent(\"ngx_cache_manager_event\") failed"); | |
| 662 goto failed; | |
| 663 } | |
| 664 | |
| 665 | |
| 666 if (ngx_create_thread(&wtid, ngx_worker_thread, NULL, log) != 0) { | |
| 667 goto failed; | |
| 668 } | |
| 669 | |
| 670 if (ngx_create_thread(&cmtid, ngx_cache_manager_thread, NULL, log) != 0) { | |
| 671 goto failed; | |
| 672 } | |
| 673 | |
| 3022 | 674 if (ngx_create_thread(&cmtid, ngx_cache_loader_thread, NULL, log) != 0) { |
| 675 goto failed; | |
| 676 } | |
| 677 | |
| 2725 | 678 for ( ;; ) { |
| 679 ev = WaitForMultipleObjects(3, events, 0, INFINITE); | |
| 680 | |
| 681 err = ngx_errno; | |
| 682 ngx_time_update(0, 0); | |
| 461 | 683 |
| 2725 | 684 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
| 685 "worker WaitForMultipleObjects: %ul", ev); | |
| 686 | |
| 687 if (ev == WAIT_OBJECT_0) { | |
| 688 ngx_terminate = 1; | |
| 689 ngx_log_error(NGX_LOG_NOTICE, log, 0, "exiting"); | |
| 690 | |
| 691 if (ResetEvent(events[0]) == 0) { | |
| 692 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 693 "ResetEvent(\"%s\") failed", wtevn); | |
| 694 } | |
| 695 | |
| 696 break; | |
| 697 } | |
| 698 | |
| 699 if (ev == WAIT_OBJECT_0 + 1) { | |
| 700 ngx_quit = 1; | |
| 701 ngx_log_error(NGX_LOG_NOTICE, log, 0, "gracefully shutting down"); | |
| 702 break; | |
| 703 } | |
| 704 | |
| 705 if (ev == WAIT_OBJECT_0 + 2) { | |
| 706 ngx_reopen = 1; | |
| 707 ngx_log_error(NGX_LOG_NOTICE, log, 0, "reopening logs"); | |
| 708 | |
| 709 if (ResetEvent(events[2]) == 0) { | |
| 710 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 711 "ResetEvent(\"%s\") failed", wroevn); | |
| 712 } | |
| 713 | |
| 714 continue; | |
| 715 } | |
| 716 | |
| 717 if (ev == WAIT_FAILED) { | |
| 718 ngx_log_error(NGX_LOG_ALERT, log, err, | |
| 719 "WaitForMultipleObjects() failed"); | |
| 720 | |
| 721 goto failed; | |
| 722 } | |
| 723 } | |
| 724 | |
| 725 /* wait threads */ | |
| 461 | 726 |
| 2725 | 727 if (SetEvent(ngx_cache_manager_event) == 0) { |
| 728 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 729 "SetEvent(\"ngx_cache_manager_event\") failed"); | |
| 730 } | |
| 731 | |
| 732 events[1] = wtid; | |
| 733 events[2] = cmtid; | |
| 734 | |
| 735 nev = 3; | |
| 736 | |
| 737 for ( ;; ) { | |
| 738 ev = WaitForMultipleObjects(nev, events, 0, INFINITE); | |
| 739 | |
| 740 err = ngx_errno; | |
| 741 ngx_time_update(0, 0); | |
| 742 | |
| 743 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
| 744 "worker exit WaitForMultipleObjects: %ul", ev); | |
| 745 | |
| 746 if (ev == WAIT_OBJECT_0) { | |
| 747 break; | |
| 748 } | |
| 749 | |
| 750 if (ev == WAIT_OBJECT_0 + 1) { | |
| 751 if (nev == 2) { | |
| 752 break; | |
| 753 } | |
| 754 | |
| 755 events[1] = events[2]; | |
| 756 nev = 2; | |
| 757 continue; | |
| 758 } | |
| 759 | |
| 760 if (ev == WAIT_OBJECT_0 + 2) { | |
| 761 nev = 2; | |
| 762 continue; | |
| 763 } | |
| 764 | |
| 765 if (ev == WAIT_FAILED) { | |
| 766 ngx_log_error(NGX_LOG_ALERT, log, err, | |
| 767 "WaitForMultipleObjects() failed"); | |
| 768 break; | |
| 769 } | |
| 461 | 770 } |
| 771 | |
| 2725 | 772 ngx_close_handle(ngx_cache_manager_event); |
| 773 ngx_close_handle(events[0]); | |
| 774 ngx_close_handle(events[1]); | |
| 775 ngx_close_handle(events[2]); | |
| 776 ngx_close_handle(mev); | |
| 777 | |
| 778 ngx_worker_process_exit(cycle); | |
| 779 | |
| 780 failed: | |
| 781 | |
| 782 exit(2); | |
| 783 } | |
| 784 | |
| 785 | |
| 786 static ngx_thread_value_t __stdcall | |
| 787 ngx_worker_thread(void *data) | |
| 788 { | |
| 789 ngx_int_t n; | |
| 790 ngx_uint_t i; | |
| 791 ngx_cycle_t *cycle; | |
| 792 ngx_connection_t *c; | |
| 793 | |
| 794 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 795 | |
| 796 ngx_init_temp_number(); | |
| 797 | |
| 798 for (n = 0; ngx_modules[n]; n++) { | |
| 799 if (ngx_modules[n]->init_process) { | |
| 800 if (ngx_modules[n]->init_process(cycle) == NGX_ERROR) { | |
| 801 /* fatal */ | |
| 802 exit(2); | |
| 803 } | |
| 804 } | |
| 805 } | |
| 806 | |
| 807 while (!ngx_quit) { | |
| 808 | |
| 809 if (ngx_exiting) { | |
| 810 | |
| 811 c = cycle->connections; | |
| 812 | |
| 813 for (i = 0; i < cycle->connection_n; i++) { | |
| 814 | |
| 815 /* THREAD: lock */ | |
| 816 | |
| 817 if (c[i].fd != -1 && c[i].idle) { | |
| 818 c[i].close = 1; | |
| 819 c[i].read->handler(c[i].read); | |
| 820 } | |
| 821 } | |
| 822 | |
| 823 if (ngx_event_timer_rbtree.root | |
| 824 == ngx_event_timer_rbtree.sentinel) | |
| 825 { | |
| 826 break; | |
| 827 } | |
| 828 } | |
| 829 | |
| 830 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "worker cycle"); | |
| 831 | |
| 832 ngx_process_events_and_timers(cycle); | |
| 833 | |
| 834 if (ngx_terminate) { | |
| 835 return 0; | |
| 836 } | |
| 837 | |
| 838 if (ngx_quit) { | |
| 839 ngx_quit = 0; | |
| 840 | |
| 841 if (!ngx_exiting) { | |
| 842 ngx_close_listening_sockets(cycle); | |
| 843 ngx_exiting = 1; | |
| 844 } | |
| 845 } | |
| 846 | |
| 847 if (ngx_reopen) { | |
| 848 ngx_reopen = 0; | |
| 849 ngx_reopen_files(cycle, -1); | |
| 850 } | |
| 851 } | |
| 852 | |
| 853 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 854 | |
| 855 return 0; | |
| 856 } | |
| 857 | |
| 858 | |
| 859 static void | |
| 860 ngx_worker_process_exit(ngx_cycle_t *cycle) | |
| 861 { | |
| 862 ngx_uint_t i; | |
| 863 ngx_connection_t *c; | |
| 864 | |
| 865 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
| 866 | |
| 867 for (i = 0; ngx_modules[i]; i++) { | |
| 868 if (ngx_modules[i]->exit_process) { | |
| 869 ngx_modules[i]->exit_process(cycle); | |
| 870 } | |
| 871 } | |
| 872 | |
| 873 if (ngx_exiting) { | |
| 874 c = cycle->connections; | |
| 875 for (i = 0; i < cycle->connection_n; i++) { | |
| 876 if (c[i].fd != -1 | |
| 877 && c[i].read | |
| 878 && !c[i].read->accept | |
| 879 && !c[i].read->channel | |
| 880 && !c[i].read->resolver) | |
| 881 { | |
| 882 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 883 "open socket #%d left in connection %ui", | |
| 884 c[i].fd, i); | |
| 885 } | |
| 886 } | |
| 461 | 887 } |
| 888 | |
| 2725 | 889 ngx_destroy_pool(cycle->pool); |
| 890 | |
| 891 exit(0); | |
| 892 } | |
| 893 | |
| 894 | |
| 895 static ngx_thread_value_t __stdcall | |
| 896 ngx_cache_manager_thread(void *data) | |
| 897 { | |
| 898 u_long ev; | |
| 899 HANDLE events[2]; | |
| 900 ngx_err_t err; | |
| 901 ngx_cycle_t *cycle; | |
| 902 | |
| 903 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 904 | |
| 905 events[0] = ngx_cache_manager_event; | |
| 906 events[1] = ngx_cache_manager_mutex; | |
| 907 | |
| 908 for ( ;; ) { | |
| 909 ev = WaitForMultipleObjects(2, events, 0, INFINITE); | |
| 910 | |
| 911 err = ngx_errno; | |
| 912 ngx_time_update(0, 0); | |
| 913 | |
| 914 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
| 915 "cache manager WaitForMultipleObjects: %ul", ev); | |
| 916 | |
| 917 if (ev == WAIT_FAILED) { | |
| 918 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
| 919 "WaitForMultipleObjects() failed"); | |
| 920 } | |
| 921 | |
| 922 /* | |
| 923 * ev == WAIT_OBJECT_0 | |
| 924 * ev == WAIT_OBJECT_0 + 1 | |
| 925 * ev == WAIT_ABANDONED_0 + 1 | |
| 926 */ | |
| 927 | |
| 928 if (ngx_terminate || ngx_quit) { | |
| 929 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 930 return 0; | |
| 931 } | |
| 932 | |
| 3021 | 933 break; |
| 2725 | 934 } |
| 935 | |
| 936 for ( ;; ) { | |
| 937 | |
| 938 if (ngx_terminate || ngx_quit) { | |
| 939 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
| 940 break; | |
| 941 } | |
| 942 | |
| 943 ngx_cache_manager_process_handler(); | |
| 944 } | |
| 945 | |
| 946 if (ReleaseMutex(ngx_cache_manager_mutex) == 0) { | |
| 947 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 948 "ReleaseMutex() failed"); | |
| 949 } | |
| 950 | |
| 951 return 0; | |
| 952 } | |
| 953 | |
| 954 | |
| 955 static void | |
| 956 ngx_cache_manager_process_handler(void) | |
| 957 { | |
| 958 u_long ev; | |
| 959 time_t next, n; | |
| 960 ngx_uint_t i; | |
| 961 ngx_path_t **path; | |
| 962 | |
| 963 next = 60 * 60; | |
| 964 | |
| 965 path = ngx_cycle->pathes.elts; | |
| 966 for (i = 0; i < ngx_cycle->pathes.nelts; i++) { | |
| 967 | |
| 968 if (path[i]->manager) { | |
| 969 n = path[i]->manager(path[i]->data); | |
| 970 | |
| 971 next = (n <= next) ? n : next; | |
| 972 | |
| 973 ngx_time_update(0, 0); | |
| 974 } | |
| 975 } | |
| 976 | |
| 977 if (next == 0) { | |
| 978 next = 1; | |
| 979 } | |
| 980 | |
| 981 ev = WaitForSingleObject(ngx_cache_manager_event, (u_long) next * 1000); | |
| 982 | |
| 983 if (ev != WAIT_TIMEOUT) { | |
| 984 | |
| 985 ngx_time_update(0, 0); | |
| 986 | |
| 987 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
| 988 "cache manager WaitForSingleObject: %ul", ev); | |
| 989 } | |
| 990 } | |
| 991 | |
| 992 | |
| 3022 | 993 static ngx_thread_value_t __stdcall |
| 994 ngx_cache_loader_thread(void *data) | |
| 995 { | |
| 996 ngx_uint_t i; | |
| 997 ngx_path_t **path; | |
| 998 ngx_cycle_t *cycle; | |
| 999 | |
| 1000 ngx_msleep(60000); | |
| 1001 | |
| 1002 cycle = (ngx_cycle_t *) ngx_cycle; | |
| 1003 | |
| 1004 path = cycle->pathes.elts; | |
| 1005 for (i = 0; i < cycle->pathes.nelts; i++) { | |
| 1006 | |
| 1007 if (ngx_terminate || ngx_quit) { | |
| 1008 break; | |
| 1009 } | |
| 1010 | |
| 1011 if (path[i]->loader) { | |
| 1012 path[i]->loader(path[i]->data); | |
| 1013 ngx_time_update(0, 0); | |
| 1014 } | |
| 1015 } | |
| 1016 | |
| 1017 return 0; | |
| 1018 } | |
| 1019 | |
| 1020 | |
| 2725 | 1021 void |
| 1022 ngx_single_process_cycle(ngx_cycle_t *cycle) | |
| 1023 { | |
| 1024 ngx_int_t i; | |
| 1025 ngx_tid_t tid; | |
| 1026 | |
| 1027 ngx_init_temp_number(); | |
| 1028 | |
| 1029 for (i = 0; ngx_modules[i]; i++) { | |
| 1030 if (ngx_modules[i]->init_process) { | |
| 1031 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { | |
| 1032 /* fatal */ | |
| 1033 exit(2); | |
| 1034 } | |
| 1035 } | |
| 1036 } | |
| 1037 | |
| 1038 ngx_process_init(cycle); | |
| 1039 | |
| 1040 ngx_console_init(cycle); | |
| 1041 | |
| 1042 if (ngx_create_events(cycle) != NGX_OK) { | |
| 461 | 1043 exit(2); |
| 1044 } | |
| 1045 | |
| 2725 | 1046 if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) { |
| 461 | 1047 /* fatal */ |
| 1048 exit(2); | |
| 1049 } | |
| 1050 | |
| 2725 | 1051 /* STUB */ |
| 1052 WaitForSingleObject(ngx_stop_event, INFINITE); | |
| 461 | 1053 } |
| 1054 | |
| 1055 | |
| 2725 | 1056 ngx_int_t |
|
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1057 ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid) |
| 461 | 1058 { |
|
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|
1059 HANDLE ev; |
|
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|
1060 ngx_int_t rc; |
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|
1061 char evn[NGX_PROCESS_SYNC_NAME]; |
| 461 | 1062 |
| 2725 | 1063 ngx_sprintf((u_char *) evn, "ngx_%s_%ul%Z", sig, pid); |
| 1064 | |
| 1065 ev = OpenEvent(EVENT_MODIFY_STATE, 0, evn); | |
| 1066 if (ev == NULL) { | |
| 1067 ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, | |
| 1068 "OpenEvent(\"%s\") failed", evn); | |
|
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|
1069 return 1; |
| 2725 | 1070 } |
| 461 | 1071 |
| 2725 | 1072 if (SetEvent(ev) == 0) { |
| 1073 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 1074 "SetEvent(\"%s\") failed", evn); | |
|
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1075 rc = 1; |
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|
1076 |
| 2725 | 1077 } else { |
| 1078 rc = 0; | |
| 1079 } | |
| 1080 | |
| 1081 ngx_close_handle(ev); | |
| 1082 | |
| 1083 return rc; | |
| 1084 } | |
| 461 | 1085 |
| 1086 | |
| 2725 | 1087 void |
| 1088 ngx_close_handle(HANDLE h) | |
| 1089 { | |
| 1090 if (CloseHandle(h) == 0) { | |
| 1091 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, | |
| 1092 "CloseHandle(%p) failed", h); | |
| 461 | 1093 } |
| 1094 } |