Mercurial > hg > nginx
annotate src/os/win32/ngx_process_cycle.c @ 2922:f0604d0b28a6
*) exit if no workers could not be started
*) do not quit old workers if no new workers could not be started
author | Igor Sysoev <igor@sysoev.ru> |
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date | Sat, 06 Jun 2009 12:36:44 +0000 |
parents | e7278e647f1a |
children | 7b68caedea01 |
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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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); | |
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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); | |
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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; | |
278
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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) | |
278
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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 | |
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119 if (ngx_start_worker_processes(cycle, NGX_PROCESS_RESPAWN) == 0) { |
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120 exit(2); |
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121 } |
2725 | 122 |
123 timer = 0; | |
124 timeout = INFINITE; | |
125 | |
126 for ( ;; ) { | |
127 | |
128 nev = 4; | |
129 for (n = 0; n < ngx_last_process; n++) { | |
130 if (ngx_processes[n].handle) { | |
131 events[nev++] = ngx_processes[n].handle; | |
132 } | |
133 } | |
134 | |
135 if (timer) { | |
136 timeout = timer > ngx_current_msec ? timer - ngx_current_msec : 0; | |
137 } | |
138 | |
139 ev = WaitForMultipleObjects(nev, events, 0, timeout); | |
140 | |
141 err = ngx_errno; | |
142 ngx_time_update(0, 0); | |
143 | |
144 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
145 "master WaitForMultipleObjects: %ul", ev); | |
146 | |
147 if (ev == WAIT_OBJECT_0) { | |
148 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
324
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149 |
2725 | 150 if (ResetEvent(ngx_stop_event) == 0) { |
151 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
152 "ResetEvent(\"%s\") failed", ngx_stop_event_name); | |
153 } | |
154 | |
155 if (timer == 0) { | |
156 timer = ngx_current_msec + 5000; | |
157 } | |
158 | |
159 ngx_terminate = 1; | |
160 ngx_quit_worker_processes(cycle, 0); | |
161 | |
162 continue; | |
163 } | |
164 | |
165 if (ev == WAIT_OBJECT_0 + 1) { | |
166 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "shutting down"); | |
167 | |
168 if (ResetEvent(ngx_quit_event) == 0) { | |
169 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
170 "ResetEvent(\"%s\") failed", ngx_quit_event_name); | |
171 } | |
172 | |
173 ngx_quit = 1; | |
174 ngx_quit_worker_processes(cycle, 0); | |
175 | |
176 continue; | |
177 } | |
178 | |
179 if (ev == WAIT_OBJECT_0 + 2) { | |
180 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs"); | |
181 | |
182 if (ResetEvent(ngx_reopen_event) == 0) { | |
183 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
184 "ResetEvent(\"%s\") failed", | |
185 ngx_reopen_event_name); | |
186 } | |
187 | |
188 ngx_reopen_files(cycle, -1); | |
189 ngx_reopen_worker_processes(cycle); | |
190 | |
191 continue; | |
192 } | |
193 | |
194 if (ev == WAIT_OBJECT_0 + 3) { | |
195 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring"); | |
196 | |
197 if (ResetEvent(ngx_reload_event) == 0) { | |
198 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
199 "ResetEvent(\"%s\") failed", | |
200 ngx_reload_event_name); | |
201 } | |
202 | |
2823 | 203 cycle = ngx_init_cycle(cycle); |
204 if (cycle == NULL) { | |
205 cycle = (ngx_cycle_t *) ngx_cycle; | |
206 continue; | |
207 } | |
208 | |
209 ngx_cycle = cycle; | |
210 | |
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211 if (ngx_start_worker_processes(cycle, NGX_PROCESS_JUST_RESPAWN)) { |
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212 ngx_quit_worker_processes(cycle, 1); |
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213 } |
2725 | 214 |
215 continue; | |
216 } | |
217 | |
218 if (ev > WAIT_OBJECT_0 + 3 && ev < WAIT_OBJECT_0 + nev) { | |
219 | |
220 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "reap worker"); | |
221 | |
222 live = ngx_reap_worker(cycle, events[ev]); | |
223 | |
224 if (!live && (ngx_terminate || ngx_quit)) { | |
225 ngx_master_process_exit(cycle); | |
226 } | |
227 | |
228 continue; | |
229 } | |
230 | |
231 if (ev == WAIT_TIMEOUT) { | |
232 ngx_terminate_worker_processes(cycle); | |
233 | |
234 ngx_master_process_exit(cycle); | |
235 } | |
236 | |
237 if (ev == WAIT_FAILED) { | |
238 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
239 "WaitForMultipleObjects() failed"); | |
240 | |
241 continue; | |
242 } | |
243 | |
244 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
245 "WaitForMultipleObjects() returned unexpected value %ul", ev); | |
246 } | |
318
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247 } |
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248 |
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249 |
2725 | 250 static void |
251 ngx_process_init(ngx_cycle_t *cycle) | |
318
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252 { |
461 | 253 ngx_err_t err; |
254 ngx_core_conf_t *ccf; | |
282
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255 |
461 | 256 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
257 | |
2627 | 258 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle) |
259 != NGX_OK) | |
577 | 260 { |
461 | 261 /* fatal */ |
262 exit(2); | |
263 } | |
264 | |
265 err = ngx_thread_key_create(&ngx_core_tls_key); | |
266 if (err != 0) { | |
267 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
268 ngx_thread_key_create_n " failed"); | |
269 /* fatal */ | |
270 exit(2); | |
271 } | |
2725 | 272 } |
461 | 273 |
2725 | 274 |
275 static void | |
276 ngx_console_init(ngx_cycle_t *cycle) | |
277 { | |
278 ngx_core_conf_t *ccf; | |
279 | |
280 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
281 | |
282 if (ccf->daemon) { | |
283 if (FreeConsole() == 0) { | |
284 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
285 "FreeConsole() failed"); | |
286 } | |
287 | |
288 return; | |
289 } | |
290 | |
291 if (SetConsoleCtrlHandler(ngx_console_handler, 1) == 0) { | |
292 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
293 "SetConsoleCtrlHandler() failed"); | |
294 } | |
295 } | |
296 | |
297 | |
298 static int __stdcall | |
299 ngx_console_handler(u_long type) | |
300 { | |
301 char *msg; | |
302 | |
303 switch (type) { | |
304 | |
305 case CTRL_C_EVENT: | |
306 msg = "Ctrl-C pressed, exiting"; | |
307 break; | |
308 | |
309 case CTRL_BREAK_EVENT: | |
310 msg = "Ctrl-Break pressed, exiting"; | |
311 break; | |
312 | |
313 case CTRL_CLOSE_EVENT: | |
314 msg = "console closing, exiting"; | |
315 break; | |
316 | |
317 case CTRL_LOGOFF_EVENT: | |
318 msg = "user logs off, exiting"; | |
319 break; | |
320 | |
321 default: | |
322 return 0; | |
323 } | |
324 | |
325 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, msg); | |
326 | |
327 if (ngx_stop_event == NULL) { | |
328 return 1; | |
329 } | |
330 | |
331 if (SetEvent(ngx_stop_event) == 0) { | |
332 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
333 "SetEvent(\"%s\") failed", ngx_stop_event_name); | |
2627 | 334 } |
335 | |
2725 | 336 return 1; |
337 } | |
338 | |
339 | |
340 static ngx_int_t | |
341 ngx_create_events(ngx_cycle_t *cycle) | |
342 { | |
343 ngx_sprintf((u_char *) ngx_stop_event_name, "ngx_stop_%s%Z", ngx_unique); | |
344 | |
345 ngx_stop_event = CreateEvent(NULL, 1, 0, ngx_stop_event_name); | |
346 if (ngx_stop_event == NULL) { | |
347 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
348 "CreateEvent(\"%s\") failed", ngx_stop_event_name); | |
349 return NGX_ERROR; | |
350 } | |
351 | |
352 | |
353 ngx_sprintf((u_char *) ngx_quit_event_name, "ngx_quit_%s%Z", ngx_unique); | |
354 | |
355 ngx_quit_event = CreateEvent(NULL, 1, 0, ngx_quit_event_name); | |
356 if (ngx_quit_event == NULL) { | |
357 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
358 "CreateEvent(\"%s\") failed", ngx_quit_event_name); | |
359 return NGX_ERROR; | |
360 } | |
361 | |
362 | |
363 ngx_sprintf((u_char *) ngx_reopen_event_name, | |
364 "ngx_reopen_%s%Z", ngx_unique); | |
365 | |
366 ngx_reopen_event = CreateEvent(NULL, 1, 0, ngx_reopen_event_name); | |
367 if (ngx_reopen_event == NULL) { | |
368 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
369 "CreateEvent(\"%s\") failed", ngx_reopen_event_name); | |
370 return NGX_ERROR; | |
371 } | |
372 | |
373 | |
374 ngx_sprintf((u_char *) ngx_reload_event_name, | |
375 "ngx_reload_%s%Z", ngx_unique); | |
376 | |
377 ngx_reload_event = CreateEvent(NULL, 1, 0, ngx_reload_event_name); | |
378 if (ngx_reload_event == NULL) { | |
379 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
380 "CreateEvent(\"%s\") failed", ngx_reload_event_name); | |
381 return NGX_ERROR; | |
382 } | |
383 | |
384 return NGX_OK; | |
385 } | |
386 | |
387 | |
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388 static ngx_int_t |
2725 | 389 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type) |
390 { | |
391 ngx_int_t n; | |
392 ngx_core_conf_t *ccf; | |
393 | |
394 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes"); | |
395 | |
396 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
397 | |
398 for (n = 0; n < ccf->worker_processes; n++) { | |
399 if (ngx_spawn_process(cycle, "worker", type) == NGX_INVALID_PID) { | |
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400 break; |
2725 | 401 } |
402 } | |
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403 |
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404 return n; |
2627 | 405 } |
406 | |
407 | |
2725 | 408 static void |
409 ngx_reopen_worker_processes(ngx_cycle_t *cycle) | |
410 { | |
411 ngx_int_t n; | |
412 | |
413 for (n = 0; n < ngx_last_process; n++) { | |
414 | |
415 if (ngx_processes[n].handle == NULL) { | |
416 continue; | |
417 } | |
418 | |
419 if (SetEvent(ngx_processes[n].reopen) == 0) { | |
420 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
421 "SetEvent(\"%s\") failed", | |
422 ngx_processes[n].reopen_event); | |
423 } | |
424 } | |
425 } | |
426 | |
427 | |
428 static void | |
429 ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old) | |
2627 | 430 { |
2725 | 431 ngx_int_t n; |
432 | |
433 for (n = 0; n < ngx_last_process; n++) { | |
434 | |
435 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
2921 | 436 "process: %d %P %p e:%d j:%d", |
2725 | 437 n, |
438 ngx_processes[n].pid, | |
439 ngx_processes[n].handle, | |
440 ngx_processes[n].exiting, | |
441 ngx_processes[n].just_respawn); | |
442 | |
443 if (old && ngx_processes[n].just_respawn) { | |
444 ngx_processes[n].just_respawn = 0; | |
445 continue; | |
446 } | |
447 | |
448 if (ngx_processes[n].handle == NULL) { | |
449 continue; | |
450 } | |
451 | |
452 if (SetEvent(ngx_processes[n].quit) == 0) { | |
453 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
454 "SetEvent(\"%s\") failed", | |
455 ngx_processes[n].quit_event); | |
456 } | |
457 | |
458 ngx_processes[n].exiting = 1; | |
459 } | |
460 } | |
461 | |
462 | |
463 static void | |
464 ngx_terminate_worker_processes(ngx_cycle_t *cycle) | |
465 { | |
466 ngx_int_t n; | |
467 | |
468 for (n = 0; n < ngx_last_process; n++) { | |
469 | |
470 if (ngx_processes[n].handle == NULL) { | |
471 continue; | |
472 } | |
473 | |
474 if (TerminateProcess(ngx_processes[n].handle, 0) == 0) { | |
475 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
476 "TerminateProcess(\"%p\") failed", | |
477 ngx_processes[n].handle); | |
478 } | |
479 | |
480 ngx_processes[n].exiting = 1; | |
2627 | 481 |
2725 | 482 ngx_close_handle(ngx_processes[n].reopen); |
483 ngx_close_handle(ngx_processes[n].quit); | |
484 ngx_close_handle(ngx_processes[n].term); | |
485 ngx_close_handle(ngx_processes[n].handle); | |
486 } | |
487 } | |
488 | |
489 | |
490 static ngx_uint_t | |
491 ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h) | |
492 { | |
493 u_long code; | |
494 ngx_int_t n; | |
495 | |
496 for (n = 0; n < ngx_last_process; n++) { | |
497 | |
498 if (ngx_processes[n].handle != h) { | |
499 continue; | |
500 } | |
501 | |
502 if (GetExitCodeProcess(h, &code) == 0) { | |
2908
234a8248812c
log GetExitCodeProcess()'s errno
Igor Sysoev <igor@sysoev.ru>
parents:
2823
diff
changeset
|
503 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
2725 | 504 "GetExitCodeProcess(%P) failed", |
505 ngx_processes[n].pid); | |
506 } | |
507 | |
508 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, | |
509 "%s process %P exited with code %Xul", | |
510 ngx_processes[n].name, ngx_processes[n].pid, code); | |
511 | |
512 ngx_close_handle(ngx_processes[n].reopen); | |
513 ngx_close_handle(ngx_processes[n].quit); | |
514 ngx_close_handle(ngx_processes[n].term); | |
515 ngx_close_handle(h); | |
2627 | 516 |
2725 | 517 ngx_processes[n].handle = NULL; |
518 ngx_processes[n].term = NULL; | |
519 ngx_processes[n].quit = NULL; | |
520 ngx_processes[n].reopen = NULL; | |
521 | |
522 if (!ngx_processes[n].exiting && !ngx_terminate && !ngx_quit) { | |
523 | |
524 if (ngx_spawn_process(cycle, ngx_processes[n].name, n) | |
525 == NGX_INVALID_PID) | |
526 { | |
527 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
528 "can not respawn %s", ngx_processes[n].name); | |
529 | |
530 if (n == ngx_last_process - 1) { | |
531 ngx_last_process--; | |
532 } | |
533 } | |
534 } | |
2627 | 535 |
2725 | 536 goto found; |
537 } | |
538 | |
539 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unknown process handle %p", h); | |
540 | |
541 found: | |
542 | |
543 for (n = 0; n < ngx_last_process; n++) { | |
544 | |
545 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
2921 | 546 "process: %d %P %p e:%d j:%d", |
2725 | 547 n, |
548 ngx_processes[n].pid, | |
549 ngx_processes[n].handle, | |
550 ngx_processes[n].exiting, | |
551 ngx_processes[n].just_respawn); | |
552 | |
553 if (ngx_processes[n].handle) { | |
554 return 1; | |
555 } | |
2627 | 556 } |
557 | |
558 return 0; | |
559 } | |
560 | |
561 | |
562 static void | |
2725 | 563 ngx_master_process_exit(ngx_cycle_t *cycle) |
564 { | |
565 ngx_uint_t i; | |
566 | |
567 ngx_delete_pidfile(cycle); | |
568 | |
569 ngx_close_handle(ngx_cache_manager_mutex); | |
570 ngx_close_handle(ngx_stop_event); | |
571 ngx_close_handle(ngx_quit_event); | |
572 ngx_close_handle(ngx_reopen_event); | |
573 ngx_close_handle(ngx_reload_event); | |
574 ngx_close_handle(ngx_master_process_event); | |
575 | |
576 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
577 | |
578 for (i = 0; ngx_modules[i]; i++) { | |
579 if (ngx_modules[i]->exit_master) { | |
580 ngx_modules[i]->exit_master(cycle); | |
581 } | |
582 } | |
583 | |
584 ngx_destroy_pool(cycle->pool); | |
585 | |
586 exit(0); | |
587 } | |
588 | |
589 | |
590 static void | |
591 ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn) | |
2627 | 592 { |
2725 | 593 char wtevn[NGX_PROCESS_SYNC_NAME]; |
594 char wqevn[NGX_PROCESS_SYNC_NAME]; | |
595 char wroevn[NGX_PROCESS_SYNC_NAME]; | |
596 HANDLE mev, events[3]; | |
597 u_long nev, ev; | |
598 ngx_err_t err; | |
599 ngx_tid_t wtid, cmtid; | |
600 ngx_log_t *log; | |
601 | |
602 log = cycle->log; | |
603 | |
604 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "worker started"); | |
605 | |
606 ngx_sprintf((u_char *) wtevn, "ngx_worker_term_%ul%Z", ngx_pid); | |
607 events[0] = CreateEvent(NULL, 1, 0, wtevn); | |
608 if (events[0] == NULL) { | |
609 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
610 "CreateEvent(\"%s\") failed", wtevn); | |
611 goto failed; | |
612 } | |
613 | |
614 ngx_sprintf((u_char *) wqevn, "ngx_worker_quit_%ul%Z", ngx_pid); | |
615 events[1] = CreateEvent(NULL, 1, 0, wqevn); | |
616 if (events[1] == NULL) { | |
617 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
618 "CreateEvent(\"%s\") failed", wqevn); | |
619 goto failed; | |
620 } | |
621 | |
622 ngx_sprintf((u_char *) wroevn, "ngx_worker_reopen_%ul%Z", ngx_pid); | |
623 events[2] = CreateEvent(NULL, 1, 0, wroevn); | |
624 if (events[2] == NULL) { | |
625 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
626 "CreateEvent(\"%s\") failed", wroevn); | |
627 goto failed; | |
628 } | |
629 | |
630 mev = OpenEvent(EVENT_MODIFY_STATE, 0, mevn); | |
631 if (mev == NULL) { | |
632 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
633 "OpenEvent(\"%s\") failed", mevn); | |
634 goto failed; | |
635 } | |
636 | |
637 if (SetEvent(mev) == 0) { | |
638 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
639 "SetEvent(\"%s\") failed", mevn); | |
640 goto failed; | |
641 } | |
642 | |
643 | |
644 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
645 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
646 | |
647 ngx_cache_manager_mutex = OpenMutex(SYNCHRONIZE, 0, | |
648 ngx_cache_manager_mutex_name); | |
649 if (ngx_cache_manager_mutex == NULL) { | |
650 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
651 "OpenMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
652 goto failed; | |
653 } | |
654 | |
655 ngx_cache_manager_event = CreateEvent(NULL, 1, 0, NULL); | |
656 if (ngx_cache_manager_event == NULL) { | |
657 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
658 "CreateEvent(\"ngx_cache_manager_event\") failed"); | |
659 goto failed; | |
660 } | |
661 | |
662 | |
663 if (ngx_create_thread(&wtid, ngx_worker_thread, NULL, log) != 0) { | |
664 goto failed; | |
665 } | |
666 | |
667 if (ngx_create_thread(&cmtid, ngx_cache_manager_thread, NULL, log) != 0) { | |
668 goto failed; | |
669 } | |
670 | |
671 for ( ;; ) { | |
672 ev = WaitForMultipleObjects(3, events, 0, INFINITE); | |
673 | |
674 err = ngx_errno; | |
675 ngx_time_update(0, 0); | |
461 | 676 |
2725 | 677 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
678 "worker WaitForMultipleObjects: %ul", ev); | |
679 | |
680 if (ev == WAIT_OBJECT_0) { | |
681 ngx_terminate = 1; | |
682 ngx_log_error(NGX_LOG_NOTICE, log, 0, "exiting"); | |
683 | |
684 if (ResetEvent(events[0]) == 0) { | |
685 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
686 "ResetEvent(\"%s\") failed", wtevn); | |
687 } | |
688 | |
689 break; | |
690 } | |
691 | |
692 if (ev == WAIT_OBJECT_0 + 1) { | |
693 ngx_quit = 1; | |
694 ngx_log_error(NGX_LOG_NOTICE, log, 0, "gracefully shutting down"); | |
695 break; | |
696 } | |
697 | |
698 if (ev == WAIT_OBJECT_0 + 2) { | |
699 ngx_reopen = 1; | |
700 ngx_log_error(NGX_LOG_NOTICE, log, 0, "reopening logs"); | |
701 | |
702 if (ResetEvent(events[2]) == 0) { | |
703 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
704 "ResetEvent(\"%s\") failed", wroevn); | |
705 } | |
706 | |
707 continue; | |
708 } | |
709 | |
710 if (ev == WAIT_FAILED) { | |
711 ngx_log_error(NGX_LOG_ALERT, log, err, | |
712 "WaitForMultipleObjects() failed"); | |
713 | |
714 goto failed; | |
715 } | |
716 } | |
717 | |
718 /* wait threads */ | |
461 | 719 |
2725 | 720 if (SetEvent(ngx_cache_manager_event) == 0) { |
721 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
722 "SetEvent(\"ngx_cache_manager_event\") failed"); | |
723 } | |
724 | |
725 events[1] = wtid; | |
726 events[2] = cmtid; | |
727 | |
728 nev = 3; | |
729 | |
730 for ( ;; ) { | |
731 ev = WaitForMultipleObjects(nev, events, 0, INFINITE); | |
732 | |
733 err = ngx_errno; | |
734 ngx_time_update(0, 0); | |
735 | |
736 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
737 "worker exit WaitForMultipleObjects: %ul", ev); | |
738 | |
739 if (ev == WAIT_OBJECT_0) { | |
740 break; | |
741 } | |
742 | |
743 if (ev == WAIT_OBJECT_0 + 1) { | |
744 if (nev == 2) { | |
745 break; | |
746 } | |
747 | |
748 events[1] = events[2]; | |
749 nev = 2; | |
750 continue; | |
751 } | |
752 | |
753 if (ev == WAIT_OBJECT_0 + 2) { | |
754 nev = 2; | |
755 continue; | |
756 } | |
757 | |
758 if (ev == WAIT_FAILED) { | |
759 ngx_log_error(NGX_LOG_ALERT, log, err, | |
760 "WaitForMultipleObjects() failed"); | |
761 break; | |
762 } | |
461 | 763 } |
764 | |
2725 | 765 ngx_close_handle(ngx_cache_manager_event); |
766 ngx_close_handle(events[0]); | |
767 ngx_close_handle(events[1]); | |
768 ngx_close_handle(events[2]); | |
769 ngx_close_handle(mev); | |
770 | |
771 ngx_worker_process_exit(cycle); | |
772 | |
773 failed: | |
774 | |
775 exit(2); | |
776 } | |
777 | |
778 | |
779 static ngx_thread_value_t __stdcall | |
780 ngx_worker_thread(void *data) | |
781 { | |
782 ngx_int_t n; | |
783 ngx_uint_t i; | |
784 ngx_cycle_t *cycle; | |
785 ngx_connection_t *c; | |
786 | |
787 cycle = (ngx_cycle_t *) ngx_cycle; | |
788 | |
789 ngx_init_temp_number(); | |
790 | |
791 for (n = 0; ngx_modules[n]; n++) { | |
792 if (ngx_modules[n]->init_process) { | |
793 if (ngx_modules[n]->init_process(cycle) == NGX_ERROR) { | |
794 /* fatal */ | |
795 exit(2); | |
796 } | |
797 } | |
798 } | |
799 | |
800 while (!ngx_quit) { | |
801 | |
802 if (ngx_exiting) { | |
803 | |
804 c = cycle->connections; | |
805 | |
806 for (i = 0; i < cycle->connection_n; i++) { | |
807 | |
808 /* THREAD: lock */ | |
809 | |
810 if (c[i].fd != -1 && c[i].idle) { | |
811 c[i].close = 1; | |
812 c[i].read->handler(c[i].read); | |
813 } | |
814 } | |
815 | |
816 if (ngx_event_timer_rbtree.root | |
817 == ngx_event_timer_rbtree.sentinel) | |
818 { | |
819 break; | |
820 } | |
821 } | |
822 | |
823 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "worker cycle"); | |
824 | |
825 ngx_process_events_and_timers(cycle); | |
826 | |
827 if (ngx_terminate) { | |
828 return 0; | |
829 } | |
830 | |
831 if (ngx_quit) { | |
832 ngx_quit = 0; | |
833 | |
834 if (!ngx_exiting) { | |
835 ngx_close_listening_sockets(cycle); | |
836 ngx_exiting = 1; | |
837 } | |
838 } | |
839 | |
840 if (ngx_reopen) { | |
841 ngx_reopen = 0; | |
842 ngx_reopen_files(cycle, -1); | |
843 } | |
844 } | |
845 | |
846 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
847 | |
848 return 0; | |
849 } | |
850 | |
851 | |
852 static void | |
853 ngx_worker_process_exit(ngx_cycle_t *cycle) | |
854 { | |
855 ngx_uint_t i; | |
856 ngx_connection_t *c; | |
857 | |
858 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
859 | |
860 for (i = 0; ngx_modules[i]; i++) { | |
861 if (ngx_modules[i]->exit_process) { | |
862 ngx_modules[i]->exit_process(cycle); | |
863 } | |
864 } | |
865 | |
866 if (ngx_exiting) { | |
867 c = cycle->connections; | |
868 for (i = 0; i < cycle->connection_n; i++) { | |
869 if (c[i].fd != -1 | |
870 && c[i].read | |
871 && !c[i].read->accept | |
872 && !c[i].read->channel | |
873 && !c[i].read->resolver) | |
874 { | |
875 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
876 "open socket #%d left in connection %ui", | |
877 c[i].fd, i); | |
878 } | |
879 } | |
461 | 880 } |
881 | |
2725 | 882 ngx_destroy_pool(cycle->pool); |
883 | |
884 exit(0); | |
885 } | |
886 | |
887 | |
888 static ngx_thread_value_t __stdcall | |
889 ngx_cache_manager_thread(void *data) | |
890 { | |
891 u_long ev; | |
892 HANDLE events[2]; | |
893 ngx_err_t err; | |
894 ngx_cycle_t *cycle; | |
895 | |
896 cycle = (ngx_cycle_t *) ngx_cycle; | |
897 | |
898 events[0] = ngx_cache_manager_event; | |
899 events[1] = ngx_cache_manager_mutex; | |
900 | |
901 for ( ;; ) { | |
902 ev = WaitForMultipleObjects(2, events, 0, INFINITE); | |
903 | |
904 err = ngx_errno; | |
905 ngx_time_update(0, 0); | |
906 | |
907 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
908 "cache manager WaitForMultipleObjects: %ul", ev); | |
909 | |
910 if (ev == WAIT_FAILED) { | |
911 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
912 "WaitForMultipleObjects() failed"); | |
913 } | |
914 | |
915 /* | |
916 * ev == WAIT_OBJECT_0 | |
917 * ev == WAIT_OBJECT_0 + 1 | |
918 * ev == WAIT_ABANDONED_0 + 1 | |
919 */ | |
920 | |
921 if (ngx_terminate || ngx_quit) { | |
922 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
923 return 0; | |
924 } | |
925 | |
926 break; | |
927 } | |
928 | |
929 for ( ;; ) { | |
930 | |
931 if (ngx_terminate || ngx_quit) { | |
932 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
933 break; | |
934 } | |
935 | |
936 ngx_cache_manager_process_handler(); | |
937 } | |
938 | |
939 if (ReleaseMutex(ngx_cache_manager_mutex) == 0) { | |
940 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
941 "ReleaseMutex() failed"); | |
942 } | |
943 | |
944 return 0; | |
945 } | |
946 | |
947 | |
948 static void | |
949 ngx_cache_manager_process_handler(void) | |
950 { | |
951 u_long ev; | |
952 time_t next, n; | |
953 ngx_uint_t i; | |
954 ngx_path_t **path; | |
955 | |
956 next = 60 * 60; | |
957 | |
958 path = ngx_cycle->pathes.elts; | |
959 for (i = 0; i < ngx_cycle->pathes.nelts; i++) { | |
960 | |
961 if (path[i]->manager) { | |
962 n = path[i]->manager(path[i]->data); | |
963 | |
964 next = (n <= next) ? n : next; | |
965 | |
966 ngx_time_update(0, 0); | |
967 } | |
968 } | |
969 | |
970 if (next == 0) { | |
971 next = 1; | |
972 } | |
973 | |
974 ev = WaitForSingleObject(ngx_cache_manager_event, (u_long) next * 1000); | |
975 | |
976 if (ev != WAIT_TIMEOUT) { | |
977 | |
978 ngx_time_update(0, 0); | |
979 | |
980 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
981 "cache manager WaitForSingleObject: %ul", ev); | |
982 } | |
983 } | |
984 | |
985 | |
986 void | |
987 ngx_single_process_cycle(ngx_cycle_t *cycle) | |
988 { | |
989 ngx_int_t i; | |
990 ngx_tid_t tid; | |
991 | |
992 ngx_init_temp_number(); | |
993 | |
994 for (i = 0; ngx_modules[i]; i++) { | |
995 if (ngx_modules[i]->init_process) { | |
996 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { | |
997 /* fatal */ | |
998 exit(2); | |
999 } | |
1000 } | |
1001 } | |
1002 | |
1003 ngx_process_init(cycle); | |
1004 | |
1005 ngx_console_init(cycle); | |
1006 | |
1007 if (ngx_create_events(cycle) != NGX_OK) { | |
461 | 1008 exit(2); |
1009 } | |
1010 | |
2725 | 1011 if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) { |
461 | 1012 /* fatal */ |
1013 exit(2); | |
1014 } | |
1015 | |
2725 | 1016 /* STUB */ |
1017 WaitForSingleObject(ngx_stop_event, INFINITE); | |
461 | 1018 } |
1019 | |
1020 | |
2725 | 1021 ngx_int_t |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1022 ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid) |
461 | 1023 { |
2738
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1024 HANDLE ev; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1025 ngx_int_t rc; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1026 char evn[NGX_PROCESS_SYNC_NAME]; |
461 | 1027 |
2725 | 1028 ngx_sprintf((u_char *) evn, "ngx_%s_%ul%Z", sig, pid); |
1029 | |
1030 ev = OpenEvent(EVENT_MODIFY_STATE, 0, evn); | |
1031 if (ev == NULL) { | |
1032 ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, | |
1033 "OpenEvent(\"%s\") failed", evn); | |
2738
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implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1034 return 1; |
2725 | 1035 } |
461 | 1036 |
2725 | 1037 if (SetEvent(ev) == 0) { |
1038 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
1039 "SetEvent(\"%s\") failed", evn); | |
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ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1040 rc = 1; |
ae81441e23f4
implement "-s signal" option for Unix
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
1041 |
2725 | 1042 } else { |
1043 rc = 0; | |
1044 } | |
1045 | |
1046 ngx_close_handle(ev); | |
1047 | |
1048 return rc; | |
1049 } | |
461 | 1050 |
1051 | |
2725 | 1052 void |
1053 ngx_close_handle(HANDLE h) | |
1054 { | |
1055 if (CloseHandle(h) == 0) { | |
1056 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, | |
1057 "CloseHandle(%p) failed", h); | |
461 | 1058 } |
1059 } |