Mercurial > hg > nginx
annotate src/os/win32/ngx_process_cycle.c @ 2738:ae81441e23f4
implement "-s signal" option for Unix
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 21 Apr 2009 20:25:49 +0000 |
parents | d43d73277c5c |
children | 78342383cb6e |
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 |
441
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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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42 |
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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 | |
201 ngx_start_worker_processes(cycle, NGX_PROCESS_JUST_RESPAWN); | |
202 ngx_quit_worker_processes(cycle, 1); | |
203 | |
204 continue; | |
205 } | |
206 | |
207 if (ev > WAIT_OBJECT_0 + 3 && ev < WAIT_OBJECT_0 + nev) { | |
208 | |
209 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "reap worker"); | |
210 | |
211 live = ngx_reap_worker(cycle, events[ev]); | |
212 | |
213 if (!live && (ngx_terminate || ngx_quit)) { | |
214 ngx_master_process_exit(cycle); | |
215 } | |
216 | |
217 continue; | |
218 } | |
219 | |
220 if (ev == WAIT_TIMEOUT) { | |
221 ngx_terminate_worker_processes(cycle); | |
222 | |
223 ngx_master_process_exit(cycle); | |
224 } | |
225 | |
226 if (ev == WAIT_FAILED) { | |
227 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
228 "WaitForMultipleObjects() failed"); | |
229 | |
230 continue; | |
231 } | |
232 | |
233 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
234 "WaitForMultipleObjects() returned unexpected value %ul", ev); | |
235 } | |
318
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236 } |
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237 |
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238 |
2725 | 239 static void |
240 ngx_process_init(ngx_cycle_t *cycle) | |
318
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241 { |
461 | 242 ngx_err_t err; |
243 ngx_core_conf_t *ccf; | |
282
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244 |
461 | 245 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
246 | |
2627 | 247 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle) |
248 != NGX_OK) | |
577 | 249 { |
461 | 250 /* fatal */ |
251 exit(2); | |
252 } | |
253 | |
254 err = ngx_thread_key_create(&ngx_core_tls_key); | |
255 if (err != 0) { | |
256 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
257 ngx_thread_key_create_n " failed"); | |
258 /* fatal */ | |
259 exit(2); | |
260 } | |
2725 | 261 } |
461 | 262 |
2725 | 263 |
264 static void | |
265 ngx_console_init(ngx_cycle_t *cycle) | |
266 { | |
267 ngx_core_conf_t *ccf; | |
268 | |
269 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
270 | |
271 if (ccf->daemon) { | |
272 if (FreeConsole() == 0) { | |
273 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
274 "FreeConsole() failed"); | |
275 } | |
276 | |
277 return; | |
278 } | |
279 | |
280 if (SetConsoleCtrlHandler(ngx_console_handler, 1) == 0) { | |
281 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
282 "SetConsoleCtrlHandler() failed"); | |
283 } | |
284 } | |
285 | |
286 | |
287 static int __stdcall | |
288 ngx_console_handler(u_long type) | |
289 { | |
290 char *msg; | |
291 | |
292 switch (type) { | |
293 | |
294 case CTRL_C_EVENT: | |
295 msg = "Ctrl-C pressed, exiting"; | |
296 break; | |
297 | |
298 case CTRL_BREAK_EVENT: | |
299 msg = "Ctrl-Break pressed, exiting"; | |
300 break; | |
301 | |
302 case CTRL_CLOSE_EVENT: | |
303 msg = "console closing, exiting"; | |
304 break; | |
305 | |
306 case CTRL_LOGOFF_EVENT: | |
307 msg = "user logs off, exiting"; | |
308 break; | |
309 | |
310 default: | |
311 return 0; | |
312 } | |
313 | |
314 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, msg); | |
315 | |
316 if (ngx_stop_event == NULL) { | |
317 return 1; | |
318 } | |
319 | |
320 if (SetEvent(ngx_stop_event) == 0) { | |
321 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
322 "SetEvent(\"%s\") failed", ngx_stop_event_name); | |
2627 | 323 } |
324 | |
2725 | 325 return 1; |
326 } | |
327 | |
328 | |
329 static ngx_int_t | |
330 ngx_create_events(ngx_cycle_t *cycle) | |
331 { | |
332 ngx_sprintf((u_char *) ngx_stop_event_name, "ngx_stop_%s%Z", ngx_unique); | |
333 | |
334 ngx_stop_event = CreateEvent(NULL, 1, 0, ngx_stop_event_name); | |
335 if (ngx_stop_event == NULL) { | |
336 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
337 "CreateEvent(\"%s\") failed", ngx_stop_event_name); | |
338 return NGX_ERROR; | |
339 } | |
340 | |
341 | |
342 ngx_sprintf((u_char *) ngx_quit_event_name, "ngx_quit_%s%Z", ngx_unique); | |
343 | |
344 ngx_quit_event = CreateEvent(NULL, 1, 0, ngx_quit_event_name); | |
345 if (ngx_quit_event == NULL) { | |
346 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
347 "CreateEvent(\"%s\") failed", ngx_quit_event_name); | |
348 return NGX_ERROR; | |
349 } | |
350 | |
351 | |
352 ngx_sprintf((u_char *) ngx_reopen_event_name, | |
353 "ngx_reopen_%s%Z", ngx_unique); | |
354 | |
355 ngx_reopen_event = CreateEvent(NULL, 1, 0, ngx_reopen_event_name); | |
356 if (ngx_reopen_event == NULL) { | |
357 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
358 "CreateEvent(\"%s\") failed", ngx_reopen_event_name); | |
359 return NGX_ERROR; | |
360 } | |
361 | |
362 | |
363 ngx_sprintf((u_char *) ngx_reload_event_name, | |
364 "ngx_reload_%s%Z", ngx_unique); | |
365 | |
366 ngx_reload_event = CreateEvent(NULL, 1, 0, ngx_reload_event_name); | |
367 if (ngx_reload_event == NULL) { | |
368 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
369 "CreateEvent(\"%s\") failed", ngx_reload_event_name); | |
370 return NGX_ERROR; | |
371 } | |
372 | |
373 return NGX_OK; | |
374 } | |
375 | |
376 | |
377 static void | |
378 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type) | |
379 { | |
380 ngx_int_t n; | |
381 ngx_core_conf_t *ccf; | |
382 | |
383 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes"); | |
384 | |
385 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
386 | |
387 for (n = 0; n < ccf->worker_processes; n++) { | |
388 if (ngx_spawn_process(cycle, "worker", type) == NGX_INVALID_PID) { | |
389 return; | |
390 } | |
391 } | |
2627 | 392 } |
393 | |
394 | |
2725 | 395 static void |
396 ngx_reopen_worker_processes(ngx_cycle_t *cycle) | |
397 { | |
398 ngx_int_t n; | |
399 | |
400 for (n = 0; n < ngx_last_process; n++) { | |
401 | |
402 if (ngx_processes[n].handle == NULL) { | |
403 continue; | |
404 } | |
405 | |
406 if (SetEvent(ngx_processes[n].reopen) == 0) { | |
407 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
408 "SetEvent(\"%s\") failed", | |
409 ngx_processes[n].reopen_event); | |
410 } | |
411 } | |
412 } | |
413 | |
414 | |
415 static void | |
416 ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old) | |
2627 | 417 { |
2725 | 418 ngx_int_t n; |
419 | |
420 for (n = 0; n < ngx_last_process; n++) { | |
421 | |
422 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
423 "process: %d %P %p e:%d t:%d r:%d j:%d", | |
424 n, | |
425 ngx_processes[n].pid, | |
426 ngx_processes[n].handle, | |
427 ngx_processes[n].exiting, | |
428 ngx_processes[n].just_respawn); | |
429 | |
430 if (old && ngx_processes[n].just_respawn) { | |
431 ngx_processes[n].just_respawn = 0; | |
432 continue; | |
433 } | |
434 | |
435 if (ngx_processes[n].handle == NULL) { | |
436 continue; | |
437 } | |
438 | |
439 if (SetEvent(ngx_processes[n].quit) == 0) { | |
440 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
441 "SetEvent(\"%s\") failed", | |
442 ngx_processes[n].quit_event); | |
443 } | |
444 | |
445 ngx_processes[n].exiting = 1; | |
446 } | |
447 } | |
448 | |
449 | |
450 static void | |
451 ngx_terminate_worker_processes(ngx_cycle_t *cycle) | |
452 { | |
453 ngx_int_t n; | |
454 | |
455 for (n = 0; n < ngx_last_process; n++) { | |
456 | |
457 if (ngx_processes[n].handle == NULL) { | |
458 continue; | |
459 } | |
460 | |
461 if (TerminateProcess(ngx_processes[n].handle, 0) == 0) { | |
462 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
463 "TerminateProcess(\"%p\") failed", | |
464 ngx_processes[n].handle); | |
465 } | |
466 | |
467 ngx_processes[n].exiting = 1; | |
2627 | 468 |
2725 | 469 ngx_close_handle(ngx_processes[n].reopen); |
470 ngx_close_handle(ngx_processes[n].quit); | |
471 ngx_close_handle(ngx_processes[n].term); | |
472 ngx_close_handle(ngx_processes[n].handle); | |
473 } | |
474 } | |
475 | |
476 | |
477 static ngx_uint_t | |
478 ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h) | |
479 { | |
480 u_long code; | |
481 ngx_int_t n; | |
482 | |
483 for (n = 0; n < ngx_last_process; n++) { | |
484 | |
485 if (ngx_processes[n].handle != h) { | |
486 continue; | |
487 } | |
488 | |
489 if (GetExitCodeProcess(h, &code) == 0) { | |
490 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
491 "GetExitCodeProcess(%P) failed", | |
492 ngx_processes[n].pid); | |
493 } | |
494 | |
495 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, | |
496 "%s process %P exited with code %Xul", | |
497 ngx_processes[n].name, ngx_processes[n].pid, code); | |
498 | |
499 ngx_close_handle(ngx_processes[n].reopen); | |
500 ngx_close_handle(ngx_processes[n].quit); | |
501 ngx_close_handle(ngx_processes[n].term); | |
502 ngx_close_handle(h); | |
2627 | 503 |
2725 | 504 ngx_processes[n].handle = NULL; |
505 ngx_processes[n].term = NULL; | |
506 ngx_processes[n].quit = NULL; | |
507 ngx_processes[n].reopen = NULL; | |
508 | |
509 if (!ngx_processes[n].exiting && !ngx_terminate && !ngx_quit) { | |
510 | |
511 if (ngx_spawn_process(cycle, ngx_processes[n].name, n) | |
512 == NGX_INVALID_PID) | |
513 { | |
514 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
515 "can not respawn %s", ngx_processes[n].name); | |
516 | |
517 if (n == ngx_last_process - 1) { | |
518 ngx_last_process--; | |
519 } | |
520 } | |
521 } | |
2627 | 522 |
2725 | 523 goto found; |
524 } | |
525 | |
526 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unknown process handle %p", h); | |
527 | |
528 found: | |
529 | |
530 for (n = 0; n < ngx_last_process; n++) { | |
531 | |
532 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
533 "process: %d %P %p e:%d t:%d r:%d j:%d", | |
534 n, | |
535 ngx_processes[n].pid, | |
536 ngx_processes[n].handle, | |
537 ngx_processes[n].exiting, | |
538 ngx_processes[n].just_respawn); | |
539 | |
540 if (ngx_processes[n].handle) { | |
541 return 1; | |
542 } | |
2627 | 543 } |
544 | |
545 return 0; | |
546 } | |
547 | |
548 | |
549 static void | |
2725 | 550 ngx_master_process_exit(ngx_cycle_t *cycle) |
551 { | |
552 ngx_uint_t i; | |
553 | |
554 ngx_delete_pidfile(cycle); | |
555 | |
556 ngx_close_handle(ngx_cache_manager_mutex); | |
557 ngx_close_handle(ngx_stop_event); | |
558 ngx_close_handle(ngx_quit_event); | |
559 ngx_close_handle(ngx_reopen_event); | |
560 ngx_close_handle(ngx_reload_event); | |
561 ngx_close_handle(ngx_master_process_event); | |
562 | |
563 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
564 | |
565 for (i = 0; ngx_modules[i]; i++) { | |
566 if (ngx_modules[i]->exit_master) { | |
567 ngx_modules[i]->exit_master(cycle); | |
568 } | |
569 } | |
570 | |
571 ngx_destroy_pool(cycle->pool); | |
572 | |
573 exit(0); | |
574 } | |
575 | |
576 | |
577 static void | |
578 ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn) | |
2627 | 579 { |
2725 | 580 char wtevn[NGX_PROCESS_SYNC_NAME]; |
581 char wqevn[NGX_PROCESS_SYNC_NAME]; | |
582 char wroevn[NGX_PROCESS_SYNC_NAME]; | |
583 HANDLE mev, events[3]; | |
584 u_long nev, ev; | |
585 ngx_err_t err; | |
586 ngx_tid_t wtid, cmtid; | |
587 ngx_log_t *log; | |
588 | |
589 log = cycle->log; | |
590 | |
591 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "worker started"); | |
592 | |
593 ngx_sprintf((u_char *) wtevn, "ngx_worker_term_%ul%Z", ngx_pid); | |
594 events[0] = CreateEvent(NULL, 1, 0, wtevn); | |
595 if (events[0] == NULL) { | |
596 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
597 "CreateEvent(\"%s\") failed", wtevn); | |
598 goto failed; | |
599 } | |
600 | |
601 ngx_sprintf((u_char *) wqevn, "ngx_worker_quit_%ul%Z", ngx_pid); | |
602 events[1] = CreateEvent(NULL, 1, 0, wqevn); | |
603 if (events[1] == NULL) { | |
604 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
605 "CreateEvent(\"%s\") failed", wqevn); | |
606 goto failed; | |
607 } | |
608 | |
609 ngx_sprintf((u_char *) wroevn, "ngx_worker_reopen_%ul%Z", ngx_pid); | |
610 events[2] = CreateEvent(NULL, 1, 0, wroevn); | |
611 if (events[2] == NULL) { | |
612 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
613 "CreateEvent(\"%s\") failed", wroevn); | |
614 goto failed; | |
615 } | |
616 | |
617 mev = OpenEvent(EVENT_MODIFY_STATE, 0, mevn); | |
618 if (mev == NULL) { | |
619 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
620 "OpenEvent(\"%s\") failed", mevn); | |
621 goto failed; | |
622 } | |
623 | |
624 if (SetEvent(mev) == 0) { | |
625 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
626 "SetEvent(\"%s\") failed", mevn); | |
627 goto failed; | |
628 } | |
629 | |
630 | |
631 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
632 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
633 | |
634 ngx_cache_manager_mutex = OpenMutex(SYNCHRONIZE, 0, | |
635 ngx_cache_manager_mutex_name); | |
636 if (ngx_cache_manager_mutex == NULL) { | |
637 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
638 "OpenMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
639 goto failed; | |
640 } | |
641 | |
642 ngx_cache_manager_event = CreateEvent(NULL, 1, 0, NULL); | |
643 if (ngx_cache_manager_event == NULL) { | |
644 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
645 "CreateEvent(\"ngx_cache_manager_event\") failed"); | |
646 goto failed; | |
647 } | |
648 | |
649 | |
650 if (ngx_create_thread(&wtid, ngx_worker_thread, NULL, log) != 0) { | |
651 goto failed; | |
652 } | |
653 | |
654 if (ngx_create_thread(&cmtid, ngx_cache_manager_thread, NULL, log) != 0) { | |
655 goto failed; | |
656 } | |
657 | |
658 for ( ;; ) { | |
659 ev = WaitForMultipleObjects(3, events, 0, INFINITE); | |
660 | |
661 err = ngx_errno; | |
662 ngx_time_update(0, 0); | |
461 | 663 |
2725 | 664 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
665 "worker WaitForMultipleObjects: %ul", ev); | |
666 | |
667 if (ev == WAIT_OBJECT_0) { | |
668 ngx_terminate = 1; | |
669 ngx_log_error(NGX_LOG_NOTICE, log, 0, "exiting"); | |
670 | |
671 if (ResetEvent(events[0]) == 0) { | |
672 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
673 "ResetEvent(\"%s\") failed", wtevn); | |
674 } | |
675 | |
676 break; | |
677 } | |
678 | |
679 if (ev == WAIT_OBJECT_0 + 1) { | |
680 ngx_quit = 1; | |
681 ngx_log_error(NGX_LOG_NOTICE, log, 0, "gracefully shutting down"); | |
682 break; | |
683 } | |
684 | |
685 if (ev == WAIT_OBJECT_0 + 2) { | |
686 ngx_reopen = 1; | |
687 ngx_log_error(NGX_LOG_NOTICE, log, 0, "reopening logs"); | |
688 | |
689 if (ResetEvent(events[2]) == 0) { | |
690 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
691 "ResetEvent(\"%s\") failed", wroevn); | |
692 } | |
693 | |
694 continue; | |
695 } | |
696 | |
697 if (ev == WAIT_FAILED) { | |
698 ngx_log_error(NGX_LOG_ALERT, log, err, | |
699 "WaitForMultipleObjects() failed"); | |
700 | |
701 goto failed; | |
702 } | |
703 } | |
704 | |
705 /* wait threads */ | |
461 | 706 |
2725 | 707 if (SetEvent(ngx_cache_manager_event) == 0) { |
708 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
709 "SetEvent(\"ngx_cache_manager_event\") failed"); | |
710 } | |
711 | |
712 events[1] = wtid; | |
713 events[2] = cmtid; | |
714 | |
715 nev = 3; | |
716 | |
717 for ( ;; ) { | |
718 ev = WaitForMultipleObjects(nev, events, 0, INFINITE); | |
719 | |
720 err = ngx_errno; | |
721 ngx_time_update(0, 0); | |
722 | |
723 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
724 "worker exit WaitForMultipleObjects: %ul", ev); | |
725 | |
726 if (ev == WAIT_OBJECT_0) { | |
727 break; | |
728 } | |
729 | |
730 if (ev == WAIT_OBJECT_0 + 1) { | |
731 if (nev == 2) { | |
732 break; | |
733 } | |
734 | |
735 events[1] = events[2]; | |
736 nev = 2; | |
737 continue; | |
738 } | |
739 | |
740 if (ev == WAIT_OBJECT_0 + 2) { | |
741 nev = 2; | |
742 continue; | |
743 } | |
744 | |
745 if (ev == WAIT_FAILED) { | |
746 ngx_log_error(NGX_LOG_ALERT, log, err, | |
747 "WaitForMultipleObjects() failed"); | |
748 break; | |
749 } | |
461 | 750 } |
751 | |
2725 | 752 ngx_close_handle(ngx_cache_manager_event); |
753 ngx_close_handle(events[0]); | |
754 ngx_close_handle(events[1]); | |
755 ngx_close_handle(events[2]); | |
756 ngx_close_handle(mev); | |
757 | |
758 ngx_worker_process_exit(cycle); | |
759 | |
760 failed: | |
761 | |
762 exit(2); | |
763 } | |
764 | |
765 | |
766 static ngx_thread_value_t __stdcall | |
767 ngx_worker_thread(void *data) | |
768 { | |
769 ngx_int_t n; | |
770 ngx_uint_t i; | |
771 ngx_cycle_t *cycle; | |
772 ngx_connection_t *c; | |
773 | |
774 cycle = (ngx_cycle_t *) ngx_cycle; | |
775 | |
776 ngx_init_temp_number(); | |
777 | |
778 for (n = 0; ngx_modules[n]; n++) { | |
779 if (ngx_modules[n]->init_process) { | |
780 if (ngx_modules[n]->init_process(cycle) == NGX_ERROR) { | |
781 /* fatal */ | |
782 exit(2); | |
783 } | |
784 } | |
785 } | |
786 | |
787 while (!ngx_quit) { | |
788 | |
789 if (ngx_exiting) { | |
790 | |
791 c = cycle->connections; | |
792 | |
793 for (i = 0; i < cycle->connection_n; i++) { | |
794 | |
795 /* THREAD: lock */ | |
796 | |
797 if (c[i].fd != -1 && c[i].idle) { | |
798 c[i].close = 1; | |
799 c[i].read->handler(c[i].read); | |
800 } | |
801 } | |
802 | |
803 if (ngx_event_timer_rbtree.root | |
804 == ngx_event_timer_rbtree.sentinel) | |
805 { | |
806 break; | |
807 } | |
808 } | |
809 | |
810 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "worker cycle"); | |
811 | |
812 ngx_process_events_and_timers(cycle); | |
813 | |
814 if (ngx_terminate) { | |
815 return 0; | |
816 } | |
817 | |
818 if (ngx_quit) { | |
819 ngx_quit = 0; | |
820 | |
821 if (!ngx_exiting) { | |
822 ngx_close_listening_sockets(cycle); | |
823 ngx_exiting = 1; | |
824 } | |
825 } | |
826 | |
827 if (ngx_reopen) { | |
828 ngx_reopen = 0; | |
829 ngx_reopen_files(cycle, -1); | |
830 } | |
831 } | |
832 | |
833 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
834 | |
835 return 0; | |
836 } | |
837 | |
838 | |
839 static void | |
840 ngx_worker_process_exit(ngx_cycle_t *cycle) | |
841 { | |
842 ngx_uint_t i; | |
843 ngx_connection_t *c; | |
844 | |
845 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
846 | |
847 for (i = 0; ngx_modules[i]; i++) { | |
848 if (ngx_modules[i]->exit_process) { | |
849 ngx_modules[i]->exit_process(cycle); | |
850 } | |
851 } | |
852 | |
853 if (ngx_exiting) { | |
854 c = cycle->connections; | |
855 for (i = 0; i < cycle->connection_n; i++) { | |
856 if (c[i].fd != -1 | |
857 && c[i].read | |
858 && !c[i].read->accept | |
859 && !c[i].read->channel | |
860 && !c[i].read->resolver) | |
861 { | |
862 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
863 "open socket #%d left in connection %ui", | |
864 c[i].fd, i); | |
865 } | |
866 } | |
461 | 867 } |
868 | |
2725 | 869 ngx_destroy_pool(cycle->pool); |
870 | |
871 exit(0); | |
872 } | |
873 | |
874 | |
875 static ngx_thread_value_t __stdcall | |
876 ngx_cache_manager_thread(void *data) | |
877 { | |
878 u_long ev; | |
879 HANDLE events[2]; | |
880 ngx_err_t err; | |
881 ngx_cycle_t *cycle; | |
882 | |
883 cycle = (ngx_cycle_t *) ngx_cycle; | |
884 | |
885 events[0] = ngx_cache_manager_event; | |
886 events[1] = ngx_cache_manager_mutex; | |
887 | |
888 for ( ;; ) { | |
889 ev = WaitForMultipleObjects(2, events, 0, INFINITE); | |
890 | |
891 err = ngx_errno; | |
892 ngx_time_update(0, 0); | |
893 | |
894 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
895 "cache manager WaitForMultipleObjects: %ul", ev); | |
896 | |
897 if (ev == WAIT_FAILED) { | |
898 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
899 "WaitForMultipleObjects() failed"); | |
900 } | |
901 | |
902 /* | |
903 * ev == WAIT_OBJECT_0 | |
904 * ev == WAIT_OBJECT_0 + 1 | |
905 * ev == WAIT_ABANDONED_0 + 1 | |
906 */ | |
907 | |
908 if (ngx_terminate || ngx_quit) { | |
909 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
910 return 0; | |
911 } | |
912 | |
913 break; | |
914 } | |
915 | |
916 for ( ;; ) { | |
917 | |
918 if (ngx_terminate || ngx_quit) { | |
919 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
920 break; | |
921 } | |
922 | |
923 ngx_cache_manager_process_handler(); | |
924 } | |
925 | |
926 if (ReleaseMutex(ngx_cache_manager_mutex) == 0) { | |
927 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
928 "ReleaseMutex() failed"); | |
929 } | |
930 | |
931 return 0; | |
932 } | |
933 | |
934 | |
935 static void | |
936 ngx_cache_manager_process_handler(void) | |
937 { | |
938 u_long ev; | |
939 time_t next, n; | |
940 ngx_uint_t i; | |
941 ngx_path_t **path; | |
942 | |
943 next = 60 * 60; | |
944 | |
945 path = ngx_cycle->pathes.elts; | |
946 for (i = 0; i < ngx_cycle->pathes.nelts; i++) { | |
947 | |
948 if (path[i]->manager) { | |
949 n = path[i]->manager(path[i]->data); | |
950 | |
951 next = (n <= next) ? n : next; | |
952 | |
953 ngx_time_update(0, 0); | |
954 } | |
955 } | |
956 | |
957 if (next == 0) { | |
958 next = 1; | |
959 } | |
960 | |
961 ev = WaitForSingleObject(ngx_cache_manager_event, (u_long) next * 1000); | |
962 | |
963 if (ev != WAIT_TIMEOUT) { | |
964 | |
965 ngx_time_update(0, 0); | |
966 | |
967 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
968 "cache manager WaitForSingleObject: %ul", ev); | |
969 } | |
970 } | |
971 | |
972 | |
973 void | |
974 ngx_single_process_cycle(ngx_cycle_t *cycle) | |
975 { | |
976 ngx_int_t i; | |
977 ngx_tid_t tid; | |
978 | |
979 ngx_init_temp_number(); | |
980 | |
981 for (i = 0; ngx_modules[i]; i++) { | |
982 if (ngx_modules[i]->init_process) { | |
983 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { | |
984 /* fatal */ | |
985 exit(2); | |
986 } | |
987 } | |
988 } | |
989 | |
990 ngx_process_init(cycle); | |
991 | |
992 ngx_console_init(cycle); | |
993 | |
994 if (ngx_create_events(cycle) != NGX_OK) { | |
461 | 995 exit(2); |
996 } | |
997 | |
2725 | 998 if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) { |
461 | 999 /* fatal */ |
1000 exit(2); | |
1001 } | |
1002 | |
2725 | 1003 /* STUB */ |
1004 WaitForSingleObject(ngx_stop_event, INFINITE); | |
461 | 1005 } |
1006 | |
1007 | |
2725 | 1008 ngx_int_t |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1009 ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid) |
461 | 1010 { |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1011 HANDLE ev; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1012 ngx_int_t rc; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1013 char evn[NGX_PROCESS_SYNC_NAME]; |
461 | 1014 |
2725 | 1015 ngx_sprintf((u_char *) evn, "ngx_%s_%ul%Z", sig, pid); |
1016 | |
1017 ev = OpenEvent(EVENT_MODIFY_STATE, 0, evn); | |
1018 if (ev == NULL) { | |
1019 ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, | |
1020 "OpenEvent(\"%s\") failed", evn); | |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1021 return 1; |
2725 | 1022 } |
461 | 1023 |
2725 | 1024 if (SetEvent(ev) == 0) { |
1025 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
1026 "SetEvent(\"%s\") failed", evn); | |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1027 rc = 1; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1028 |
2725 | 1029 } else { |
1030 rc = 0; | |
1031 } | |
1032 | |
1033 ngx_close_handle(ev); | |
1034 | |
1035 return rc; | |
1036 } | |
461 | 1037 |
1038 | |
2725 | 1039 void |
1040 ngx_close_handle(HANDLE h) | |
1041 { | |
1042 if (CloseHandle(h) == 0) { | |
1043 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, | |
1044 "CloseHandle(%p) failed", h); | |
461 | 1045 } |
1046 } |