Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_process_cycle.c @ 2823:78342383cb6e
reconfigure master process
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 08 May 2009 18:12:03 +0000 |
parents | ae81441e23f4 |
children | 234a8248812c 87da6664fb49 |
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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1 |
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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; | |
290
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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"); | |
324
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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 } | |
318
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244 } |
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246 |
2725 | 247 static void |
248 ngx_process_init(ngx_cycle_t *cycle) | |
318
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249 { |
461 | 250 ngx_err_t err; |
251 ngx_core_conf_t *ccf; | |
282
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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, | |
431 "process: %d %P %p e:%d t:%d r:%d j:%d", | |
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) { | |
498 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
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, | |
541 "process: %d %P %p e:%d t:%d r:%d j:%d", | |
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 |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1017 ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid) |
461 | 1018 { |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1019 HANDLE ev; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1020 ngx_int_t rc; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
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); | |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
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); | |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1035 rc = 1; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
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 } |