Mercurial > hg > nginx
annotate src/os/win32/ngx_process_cycle.c @ 5445:108791bded2e stable-1.4
Version bump.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 19 Nov 2013 15:23:03 +0400 |
parents | 8a9b7b4e9f2d |
children | 3d2d3e1cf427 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
461 | 11 #include <nginx.h> |
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13 |
2725 | 14 static void ngx_process_init(ngx_cycle_t *cycle); |
15 static void ngx_console_init(ngx_cycle_t *cycle); | |
16 static int __stdcall ngx_console_handler(u_long type); | |
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17 static ngx_int_t ngx_create_signal_events(ngx_cycle_t *cycle); |
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18 static ngx_int_t ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type); |
2725 | 19 static void ngx_reopen_worker_processes(ngx_cycle_t *cycle); |
20 static void ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old); | |
21 static void ngx_terminate_worker_processes(ngx_cycle_t *cycle); | |
22 static ngx_uint_t ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h); | |
23 static void ngx_master_process_exit(ngx_cycle_t *cycle); | |
24 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn); | |
25 static void ngx_worker_process_exit(ngx_cycle_t *cycle); | |
26 static ngx_thread_value_t __stdcall ngx_worker_thread(void *data); | |
27 static ngx_thread_value_t __stdcall ngx_cache_manager_thread(void *data); | |
28 static void ngx_cache_manager_process_handler(void); | |
3022 | 29 static ngx_thread_value_t __stdcall ngx_cache_loader_thread(void *data); |
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30 |
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31 |
2725 | 32 ngx_uint_t ngx_process; |
33 ngx_pid_t ngx_pid; | |
34 ngx_uint_t ngx_threaded; | |
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35 |
2725 | 36 ngx_uint_t ngx_inherited; |
37 ngx_pid_t ngx_new_binary; | |
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38 |
2725 | 39 sig_atomic_t ngx_terminate; |
40 sig_atomic_t ngx_quit; | |
41 sig_atomic_t ngx_reopen; | |
42 sig_atomic_t ngx_reconfigure; | |
43 ngx_uint_t ngx_exiting; | |
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44 |
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45 |
2725 | 46 HANDLE ngx_master_process_event; |
47 char ngx_master_process_event_name[NGX_PROCESS_SYNC_NAME]; | |
48 | |
49 static HANDLE ngx_stop_event; | |
50 static char ngx_stop_event_name[NGX_PROCESS_SYNC_NAME]; | |
51 static HANDLE ngx_quit_event; | |
52 static char ngx_quit_event_name[NGX_PROCESS_SYNC_NAME]; | |
53 static HANDLE ngx_reopen_event; | |
54 static char ngx_reopen_event_name[NGX_PROCESS_SYNC_NAME]; | |
55 static HANDLE ngx_reload_event; | |
56 static char ngx_reload_event_name[NGX_PROCESS_SYNC_NAME]; | |
57 | |
58 HANDLE ngx_cache_manager_mutex; | |
59 char ngx_cache_manager_mutex_name[NGX_PROCESS_SYNC_NAME]; | |
60 HANDLE ngx_cache_manager_event; | |
461 | 61 |
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62 |
509 | 63 void |
64 ngx_master_process_cycle(ngx_cycle_t *cycle) | |
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65 { |
2725 | 66 u_long nev, ev, timeout; |
67 ngx_err_t err; | |
68 ngx_int_t n; | |
69 ngx_msec_t timer; | |
70 ngx_uint_t live; | |
71 HANDLE events[MAXIMUM_WAIT_OBJECTS]; | |
72 | |
73 ngx_process_init(cycle); | |
74 | |
75 ngx_sprintf((u_char *) ngx_master_process_event_name, | |
76 "ngx_master_%s%Z", ngx_unique); | |
77 | |
78 if (ngx_process == NGX_PROCESS_WORKER) { | |
79 ngx_worker_process_cycle(cycle, ngx_master_process_event_name); | |
80 return; | |
81 } | |
82 | |
83 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "master started"); | |
84 | |
85 ngx_console_init(cycle); | |
86 | |
87 SetEnvironmentVariable("ngx_unique", ngx_unique); | |
88 | |
89 ngx_master_process_event = CreateEvent(NULL, 1, 0, | |
90 ngx_master_process_event_name); | |
91 if (ngx_master_process_event == NULL) { | |
92 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
93 "CreateEvent(\"%s\") failed", | |
94 ngx_master_process_event_name); | |
95 exit(2); | |
96 } | |
97 | |
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98 if (ngx_create_signal_events(cycle) != NGX_OK) { |
2725 | 99 exit(2); |
100 } | |
101 | |
102 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
103 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
104 | |
105 ngx_cache_manager_mutex = CreateMutex(NULL, 0, | |
106 ngx_cache_manager_mutex_name); | |
107 if (ngx_cache_manager_mutex == NULL) { | |
108 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
109 "CreateMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
110 exit(2); | |
111 } | |
112 | |
113 | |
114 events[0] = ngx_stop_event; | |
115 events[1] = ngx_quit_event; | |
116 events[2] = ngx_reopen_event; | |
117 events[3] = ngx_reload_event; | |
118 | |
119 ngx_close_listening_sockets(cycle); | |
120 | |
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121 if (ngx_start_worker_processes(cycle, NGX_PROCESS_RESPAWN) == 0) { |
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122 exit(2); |
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123 } |
2725 | 124 |
125 timer = 0; | |
126 timeout = INFINITE; | |
127 | |
128 for ( ;; ) { | |
129 | |
130 nev = 4; | |
131 for (n = 0; n < ngx_last_process; n++) { | |
132 if (ngx_processes[n].handle) { | |
133 events[nev++] = ngx_processes[n].handle; | |
134 } | |
135 } | |
136 | |
137 if (timer) { | |
138 timeout = timer > ngx_current_msec ? timer - ngx_current_msec : 0; | |
139 } | |
140 | |
141 ev = WaitForMultipleObjects(nev, events, 0, timeout); | |
142 | |
143 err = ngx_errno; | |
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144 ngx_time_update(); |
2725 | 145 |
146 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
147 "master WaitForMultipleObjects: %ul", ev); | |
148 | |
149 if (ev == WAIT_OBJECT_0) { | |
150 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
324
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151 |
2725 | 152 if (ResetEvent(ngx_stop_event) == 0) { |
153 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
154 "ResetEvent(\"%s\") failed", ngx_stop_event_name); | |
155 } | |
156 | |
157 if (timer == 0) { | |
158 timer = ngx_current_msec + 5000; | |
159 } | |
160 | |
161 ngx_terminate = 1; | |
162 ngx_quit_worker_processes(cycle, 0); | |
163 | |
164 continue; | |
165 } | |
166 | |
167 if (ev == WAIT_OBJECT_0 + 1) { | |
168 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "shutting down"); | |
169 | |
170 if (ResetEvent(ngx_quit_event) == 0) { | |
171 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
172 "ResetEvent(\"%s\") failed", ngx_quit_event_name); | |
173 } | |
174 | |
175 ngx_quit = 1; | |
176 ngx_quit_worker_processes(cycle, 0); | |
177 | |
178 continue; | |
179 } | |
180 | |
181 if (ev == WAIT_OBJECT_0 + 2) { | |
182 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs"); | |
183 | |
184 if (ResetEvent(ngx_reopen_event) == 0) { | |
185 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
186 "ResetEvent(\"%s\") failed", | |
187 ngx_reopen_event_name); | |
188 } | |
189 | |
190 ngx_reopen_files(cycle, -1); | |
191 ngx_reopen_worker_processes(cycle); | |
192 | |
193 continue; | |
194 } | |
195 | |
196 if (ev == WAIT_OBJECT_0 + 3) { | |
197 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring"); | |
198 | |
199 if (ResetEvent(ngx_reload_event) == 0) { | |
200 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
201 "ResetEvent(\"%s\") failed", | |
202 ngx_reload_event_name); | |
203 } | |
204 | |
2823 | 205 cycle = ngx_init_cycle(cycle); |
206 if (cycle == NULL) { | |
207 cycle = (ngx_cycle_t *) ngx_cycle; | |
208 continue; | |
209 } | |
210 | |
211 ngx_cycle = cycle; | |
212 | |
2928 | 213 ngx_close_listening_sockets(cycle); |
214 | |
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215 if (ngx_start_worker_processes(cycle, NGX_PROCESS_JUST_RESPAWN)) { |
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216 ngx_quit_worker_processes(cycle, 1); |
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217 } |
2725 | 218 |
219 continue; | |
220 } | |
221 | |
222 if (ev > WAIT_OBJECT_0 + 3 && ev < WAIT_OBJECT_0 + nev) { | |
223 | |
224 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "reap worker"); | |
225 | |
226 live = ngx_reap_worker(cycle, events[ev]); | |
227 | |
228 if (!live && (ngx_terminate || ngx_quit)) { | |
229 ngx_master_process_exit(cycle); | |
230 } | |
231 | |
232 continue; | |
233 } | |
234 | |
235 if (ev == WAIT_TIMEOUT) { | |
236 ngx_terminate_worker_processes(cycle); | |
237 | |
238 ngx_master_process_exit(cycle); | |
239 } | |
240 | |
241 if (ev == WAIT_FAILED) { | |
242 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
243 "WaitForMultipleObjects() failed"); | |
244 | |
245 continue; | |
246 } | |
247 | |
248 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
249 "WaitForMultipleObjects() returned unexpected value %ul", ev); | |
250 } | |
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251 } |
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253 |
2725 | 254 static void |
255 ngx_process_init(ngx_cycle_t *cycle) | |
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256 { |
461 | 257 ngx_err_t err; |
258 ngx_core_conf_t *ccf; | |
282
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259 |
461 | 260 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
261 | |
2627 | 262 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle) |
263 != NGX_OK) | |
577 | 264 { |
461 | 265 /* fatal */ |
266 exit(2); | |
267 } | |
268 | |
269 err = ngx_thread_key_create(&ngx_core_tls_key); | |
270 if (err != 0) { | |
271 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
272 ngx_thread_key_create_n " failed"); | |
273 /* fatal */ | |
274 exit(2); | |
275 } | |
2725 | 276 } |
461 | 277 |
2725 | 278 |
279 static void | |
280 ngx_console_init(ngx_cycle_t *cycle) | |
281 { | |
282 ngx_core_conf_t *ccf; | |
283 | |
284 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
285 | |
286 if (ccf->daemon) { | |
287 if (FreeConsole() == 0) { | |
288 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
289 "FreeConsole() failed"); | |
290 } | |
291 | |
292 return; | |
293 } | |
294 | |
295 if (SetConsoleCtrlHandler(ngx_console_handler, 1) == 0) { | |
296 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
297 "SetConsoleCtrlHandler() failed"); | |
298 } | |
299 } | |
300 | |
301 | |
302 static int __stdcall | |
303 ngx_console_handler(u_long type) | |
304 { | |
305 char *msg; | |
306 | |
307 switch (type) { | |
308 | |
309 case CTRL_C_EVENT: | |
310 msg = "Ctrl-C pressed, exiting"; | |
311 break; | |
312 | |
313 case CTRL_BREAK_EVENT: | |
314 msg = "Ctrl-Break pressed, exiting"; | |
315 break; | |
316 | |
317 case CTRL_CLOSE_EVENT: | |
318 msg = "console closing, exiting"; | |
319 break; | |
320 | |
321 case CTRL_LOGOFF_EVENT: | |
322 msg = "user logs off, exiting"; | |
323 break; | |
324 | |
325 default: | |
326 return 0; | |
327 } | |
328 | |
329 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, msg); | |
330 | |
331 if (ngx_stop_event == NULL) { | |
332 return 1; | |
333 } | |
334 | |
335 if (SetEvent(ngx_stop_event) == 0) { | |
336 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
337 "SetEvent(\"%s\") failed", ngx_stop_event_name); | |
2627 | 338 } |
339 | |
2725 | 340 return 1; |
341 } | |
342 | |
343 | |
344 static ngx_int_t | |
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345 ngx_create_signal_events(ngx_cycle_t *cycle) |
2725 | 346 { |
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347 ngx_sprintf((u_char *) ngx_stop_event_name, |
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348 "Global\\ngx_stop_%s%Z", ngx_unique); |
2725 | 349 |
350 ngx_stop_event = CreateEvent(NULL, 1, 0, ngx_stop_event_name); | |
351 if (ngx_stop_event == NULL) { | |
352 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
353 "CreateEvent(\"%s\") failed", ngx_stop_event_name); | |
354 return NGX_ERROR; | |
355 } | |
356 | |
357 | |
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358 ngx_sprintf((u_char *) ngx_quit_event_name, |
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359 "Global\\ngx_quit_%s%Z", ngx_unique); |
2725 | 360 |
361 ngx_quit_event = CreateEvent(NULL, 1, 0, ngx_quit_event_name); | |
362 if (ngx_quit_event == NULL) { | |
363 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
364 "CreateEvent(\"%s\") failed", ngx_quit_event_name); | |
365 return NGX_ERROR; | |
366 } | |
367 | |
368 | |
369 ngx_sprintf((u_char *) ngx_reopen_event_name, | |
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370 "Global\\ngx_reopen_%s%Z", ngx_unique); |
2725 | 371 |
372 ngx_reopen_event = CreateEvent(NULL, 1, 0, ngx_reopen_event_name); | |
373 if (ngx_reopen_event == NULL) { | |
374 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
375 "CreateEvent(\"%s\") failed", ngx_reopen_event_name); | |
376 return NGX_ERROR; | |
377 } | |
378 | |
379 | |
380 ngx_sprintf((u_char *) ngx_reload_event_name, | |
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381 "Global\\ngx_reload_%s%Z", ngx_unique); |
2725 | 382 |
383 ngx_reload_event = CreateEvent(NULL, 1, 0, ngx_reload_event_name); | |
384 if (ngx_reload_event == NULL) { | |
385 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
386 "CreateEvent(\"%s\") failed", ngx_reload_event_name); | |
387 return NGX_ERROR; | |
388 } | |
389 | |
390 return NGX_OK; | |
391 } | |
392 | |
393 | |
2922
f0604d0b28a6
*) exit if no workers could not be started
Igor Sysoev <igor@sysoev.ru>
parents:
2921
diff
changeset
|
394 static ngx_int_t |
2725 | 395 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type) |
396 { | |
397 ngx_int_t n; | |
398 ngx_core_conf_t *ccf; | |
399 | |
400 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes"); | |
401 | |
402 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | |
403 | |
404 for (n = 0; n < ccf->worker_processes; n++) { | |
405 if (ngx_spawn_process(cycle, "worker", type) == NGX_INVALID_PID) { | |
2922
f0604d0b28a6
*) exit if no workers could not be started
Igor Sysoev <igor@sysoev.ru>
parents:
2921
diff
changeset
|
406 break; |
2725 | 407 } |
408 } | |
2922
f0604d0b28a6
*) exit if no workers could not be started
Igor Sysoev <igor@sysoev.ru>
parents:
2921
diff
changeset
|
409 |
f0604d0b28a6
*) exit if no workers could not be started
Igor Sysoev <igor@sysoev.ru>
parents:
2921
diff
changeset
|
410 return n; |
2627 | 411 } |
412 | |
413 | |
2725 | 414 static void |
415 ngx_reopen_worker_processes(ngx_cycle_t *cycle) | |
416 { | |
417 ngx_int_t n; | |
418 | |
419 for (n = 0; n < ngx_last_process; n++) { | |
420 | |
421 if (ngx_processes[n].handle == NULL) { | |
422 continue; | |
423 } | |
424 | |
425 if (SetEvent(ngx_processes[n].reopen) == 0) { | |
426 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
427 "SetEvent(\"%s\") failed", | |
428 ngx_processes[n].reopen_event); | |
429 } | |
430 } | |
431 } | |
432 | |
433 | |
434 static void | |
435 ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old) | |
2627 | 436 { |
2725 | 437 ngx_int_t n; |
438 | |
439 for (n = 0; n < ngx_last_process; n++) { | |
440 | |
441 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
2921 | 442 "process: %d %P %p e:%d j:%d", |
2725 | 443 n, |
444 ngx_processes[n].pid, | |
445 ngx_processes[n].handle, | |
446 ngx_processes[n].exiting, | |
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2928
diff
changeset
|
447 ngx_processes[n].just_spawn); |
2725 | 448 |
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2928
diff
changeset
|
449 if (old && ngx_processes[n].just_spawn) { |
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2928
diff
changeset
|
450 ngx_processes[n].just_spawn = 0; |
2725 | 451 continue; |
452 } | |
453 | |
454 if (ngx_processes[n].handle == NULL) { | |
455 continue; | |
456 } | |
457 | |
458 if (SetEvent(ngx_processes[n].quit) == 0) { | |
459 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
460 "SetEvent(\"%s\") failed", | |
461 ngx_processes[n].quit_event); | |
462 } | |
463 | |
464 ngx_processes[n].exiting = 1; | |
465 } | |
466 } | |
467 | |
468 | |
469 static void | |
470 ngx_terminate_worker_processes(ngx_cycle_t *cycle) | |
471 { | |
472 ngx_int_t n; | |
473 | |
474 for (n = 0; n < ngx_last_process; n++) { | |
475 | |
476 if (ngx_processes[n].handle == NULL) { | |
477 continue; | |
478 } | |
479 | |
480 if (TerminateProcess(ngx_processes[n].handle, 0) == 0) { | |
481 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
482 "TerminateProcess(\"%p\") failed", | |
483 ngx_processes[n].handle); | |
484 } | |
485 | |
486 ngx_processes[n].exiting = 1; | |
2627 | 487 |
2725 | 488 ngx_close_handle(ngx_processes[n].reopen); |
489 ngx_close_handle(ngx_processes[n].quit); | |
490 ngx_close_handle(ngx_processes[n].term); | |
491 ngx_close_handle(ngx_processes[n].handle); | |
492 } | |
493 } | |
494 | |
495 | |
496 static ngx_uint_t | |
497 ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h) | |
498 { | |
499 u_long code; | |
500 ngx_int_t n; | |
501 | |
502 for (n = 0; n < ngx_last_process; n++) { | |
503 | |
504 if (ngx_processes[n].handle != h) { | |
505 continue; | |
506 } | |
507 | |
508 if (GetExitCodeProcess(h, &code) == 0) { | |
2908
234a8248812c
log GetExitCodeProcess()'s errno
Igor Sysoev <igor@sysoev.ru>
parents:
2823
diff
changeset
|
509 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
2725 | 510 "GetExitCodeProcess(%P) failed", |
511 ngx_processes[n].pid); | |
512 } | |
513 | |
514 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, | |
515 "%s process %P exited with code %Xul", | |
516 ngx_processes[n].name, ngx_processes[n].pid, code); | |
517 | |
518 ngx_close_handle(ngx_processes[n].reopen); | |
519 ngx_close_handle(ngx_processes[n].quit); | |
520 ngx_close_handle(ngx_processes[n].term); | |
521 ngx_close_handle(h); | |
2627 | 522 |
2725 | 523 ngx_processes[n].handle = NULL; |
524 ngx_processes[n].term = NULL; | |
525 ngx_processes[n].quit = NULL; | |
526 ngx_processes[n].reopen = NULL; | |
527 | |
528 if (!ngx_processes[n].exiting && !ngx_terminate && !ngx_quit) { | |
529 | |
530 if (ngx_spawn_process(cycle, ngx_processes[n].name, n) | |
531 == NGX_INVALID_PID) | |
532 { | |
533 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
4133
59b99f217c6d
Replaced "can not" with "cannot" and "could not" in a bunch of places.
Ruslan Ermilov <ru@nginx.com>
parents:
3751
diff
changeset
|
534 "could not respawn %s", ngx_processes[n].name); |
2725 | 535 |
536 if (n == ngx_last_process - 1) { | |
537 ngx_last_process--; | |
538 } | |
539 } | |
540 } | |
2627 | 541 |
2725 | 542 goto found; |
543 } | |
544 | |
545 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unknown process handle %p", h); | |
546 | |
547 found: | |
548 | |
549 for (n = 0; n < ngx_last_process; n++) { | |
550 | |
551 ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
2921 | 552 "process: %d %P %p e:%d j:%d", |
2725 | 553 n, |
554 ngx_processes[n].pid, | |
555 ngx_processes[n].handle, | |
556 ngx_processes[n].exiting, | |
3016
d82993af1da0
introduce NGX_PROCESS_JUST_SPAWN and change field name accordingly
Igor Sysoev <igor@sysoev.ru>
parents:
2928
diff
changeset
|
557 ngx_processes[n].just_spawn); |
2725 | 558 |
559 if (ngx_processes[n].handle) { | |
560 return 1; | |
561 } | |
2627 | 562 } |
563 | |
564 return 0; | |
565 } | |
566 | |
567 | |
568 static void | |
2725 | 569 ngx_master_process_exit(ngx_cycle_t *cycle) |
570 { | |
571 ngx_uint_t i; | |
572 | |
573 ngx_delete_pidfile(cycle); | |
574 | |
575 ngx_close_handle(ngx_cache_manager_mutex); | |
576 ngx_close_handle(ngx_stop_event); | |
577 ngx_close_handle(ngx_quit_event); | |
578 ngx_close_handle(ngx_reopen_event); | |
579 ngx_close_handle(ngx_reload_event); | |
580 ngx_close_handle(ngx_master_process_event); | |
581 | |
582 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
583 | |
584 for (i = 0; ngx_modules[i]; i++) { | |
585 if (ngx_modules[i]->exit_master) { | |
586 ngx_modules[i]->exit_master(cycle); | |
587 } | |
588 } | |
589 | |
590 ngx_destroy_pool(cycle->pool); | |
591 | |
592 exit(0); | |
593 } | |
594 | |
595 | |
596 static void | |
597 ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn) | |
2627 | 598 { |
2725 | 599 char wtevn[NGX_PROCESS_SYNC_NAME]; |
600 char wqevn[NGX_PROCESS_SYNC_NAME]; | |
601 char wroevn[NGX_PROCESS_SYNC_NAME]; | |
602 HANDLE mev, events[3]; | |
603 u_long nev, ev; | |
604 ngx_err_t err; | |
3352
5c43621c580a
a cache manager thread handle was overwritten by a cache loader thread handle,
Igor Sysoev <igor@sysoev.ru>
parents:
3035
diff
changeset
|
605 ngx_tid_t wtid, cmtid, cltid; |
2725 | 606 ngx_log_t *log; |
607 | |
608 log = cycle->log; | |
609 | |
610 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "worker started"); | |
611 | |
612 ngx_sprintf((u_char *) wtevn, "ngx_worker_term_%ul%Z", ngx_pid); | |
613 events[0] = CreateEvent(NULL, 1, 0, wtevn); | |
614 if (events[0] == NULL) { | |
615 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
616 "CreateEvent(\"%s\") failed", wtevn); | |
617 goto failed; | |
618 } | |
619 | |
620 ngx_sprintf((u_char *) wqevn, "ngx_worker_quit_%ul%Z", ngx_pid); | |
621 events[1] = CreateEvent(NULL, 1, 0, wqevn); | |
622 if (events[1] == NULL) { | |
623 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
624 "CreateEvent(\"%s\") failed", wqevn); | |
625 goto failed; | |
626 } | |
627 | |
628 ngx_sprintf((u_char *) wroevn, "ngx_worker_reopen_%ul%Z", ngx_pid); | |
629 events[2] = CreateEvent(NULL, 1, 0, wroevn); | |
630 if (events[2] == NULL) { | |
631 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
632 "CreateEvent(\"%s\") failed", wroevn); | |
633 goto failed; | |
634 } | |
635 | |
636 mev = OpenEvent(EVENT_MODIFY_STATE, 0, mevn); | |
637 if (mev == NULL) { | |
638 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
639 "OpenEvent(\"%s\") failed", mevn); | |
640 goto failed; | |
641 } | |
642 | |
643 if (SetEvent(mev) == 0) { | |
644 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
645 "SetEvent(\"%s\") failed", mevn); | |
646 goto failed; | |
647 } | |
648 | |
649 | |
650 ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, | |
651 "ngx_cache_manager_mutex_%s%Z", ngx_unique); | |
652 | |
653 ngx_cache_manager_mutex = OpenMutex(SYNCHRONIZE, 0, | |
654 ngx_cache_manager_mutex_name); | |
655 if (ngx_cache_manager_mutex == NULL) { | |
656 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
657 "OpenMutex(\"%s\") failed", ngx_cache_manager_mutex_name); | |
658 goto failed; | |
659 } | |
660 | |
661 ngx_cache_manager_event = CreateEvent(NULL, 1, 0, NULL); | |
662 if (ngx_cache_manager_event == NULL) { | |
663 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
664 "CreateEvent(\"ngx_cache_manager_event\") failed"); | |
665 goto failed; | |
666 } | |
667 | |
668 | |
669 if (ngx_create_thread(&wtid, ngx_worker_thread, NULL, log) != 0) { | |
670 goto failed; | |
671 } | |
672 | |
673 if (ngx_create_thread(&cmtid, ngx_cache_manager_thread, NULL, log) != 0) { | |
674 goto failed; | |
675 } | |
676 | |
3352
5c43621c580a
a cache manager thread handle was overwritten by a cache loader thread handle,
Igor Sysoev <igor@sysoev.ru>
parents:
3035
diff
changeset
|
677 if (ngx_create_thread(&cltid, ngx_cache_loader_thread, NULL, log) != 0) { |
3022 | 678 goto failed; |
679 } | |
680 | |
2725 | 681 for ( ;; ) { |
682 ev = WaitForMultipleObjects(3, events, 0, INFINITE); | |
683 | |
684 err = ngx_errno; | |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
685 ngx_time_update(); |
461 | 686 |
2725 | 687 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
688 "worker WaitForMultipleObjects: %ul", ev); | |
689 | |
690 if (ev == WAIT_OBJECT_0) { | |
691 ngx_terminate = 1; | |
692 ngx_log_error(NGX_LOG_NOTICE, log, 0, "exiting"); | |
693 | |
694 if (ResetEvent(events[0]) == 0) { | |
695 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
696 "ResetEvent(\"%s\") failed", wtevn); | |
697 } | |
698 | |
699 break; | |
700 } | |
701 | |
702 if (ev == WAIT_OBJECT_0 + 1) { | |
703 ngx_quit = 1; | |
704 ngx_log_error(NGX_LOG_NOTICE, log, 0, "gracefully shutting down"); | |
705 break; | |
706 } | |
707 | |
708 if (ev == WAIT_OBJECT_0 + 2) { | |
709 ngx_reopen = 1; | |
710 ngx_log_error(NGX_LOG_NOTICE, log, 0, "reopening logs"); | |
711 | |
712 if (ResetEvent(events[2]) == 0) { | |
713 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
714 "ResetEvent(\"%s\") failed", wroevn); | |
715 } | |
716 | |
717 continue; | |
718 } | |
719 | |
720 if (ev == WAIT_FAILED) { | |
721 ngx_log_error(NGX_LOG_ALERT, log, err, | |
722 "WaitForMultipleObjects() failed"); | |
723 | |
724 goto failed; | |
725 } | |
726 } | |
727 | |
728 /* wait threads */ | |
461 | 729 |
2725 | 730 if (SetEvent(ngx_cache_manager_event) == 0) { |
731 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
732 "SetEvent(\"ngx_cache_manager_event\") failed"); | |
733 } | |
734 | |
735 events[1] = wtid; | |
736 events[2] = cmtid; | |
737 | |
738 nev = 3; | |
739 | |
740 for ( ;; ) { | |
741 ev = WaitForMultipleObjects(nev, events, 0, INFINITE); | |
742 | |
743 err = ngx_errno; | |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
744 ngx_time_update(); |
2725 | 745 |
746 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
747 "worker exit WaitForMultipleObjects: %ul", ev); | |
748 | |
749 if (ev == WAIT_OBJECT_0) { | |
750 break; | |
751 } | |
752 | |
753 if (ev == WAIT_OBJECT_0 + 1) { | |
754 if (nev == 2) { | |
755 break; | |
756 } | |
757 | |
758 events[1] = events[2]; | |
759 nev = 2; | |
760 continue; | |
761 } | |
762 | |
763 if (ev == WAIT_OBJECT_0 + 2) { | |
764 nev = 2; | |
765 continue; | |
766 } | |
767 | |
768 if (ev == WAIT_FAILED) { | |
769 ngx_log_error(NGX_LOG_ALERT, log, err, | |
770 "WaitForMultipleObjects() failed"); | |
771 break; | |
772 } | |
461 | 773 } |
774 | |
2725 | 775 ngx_close_handle(ngx_cache_manager_event); |
776 ngx_close_handle(events[0]); | |
777 ngx_close_handle(events[1]); | |
778 ngx_close_handle(events[2]); | |
779 ngx_close_handle(mev); | |
780 | |
781 ngx_worker_process_exit(cycle); | |
782 | |
783 failed: | |
784 | |
785 exit(2); | |
786 } | |
787 | |
788 | |
789 static ngx_thread_value_t __stdcall | |
790 ngx_worker_thread(void *data) | |
791 { | |
792 ngx_int_t n; | |
793 ngx_uint_t i; | |
794 ngx_cycle_t *cycle; | |
795 ngx_connection_t *c; | |
796 | |
797 cycle = (ngx_cycle_t *) ngx_cycle; | |
798 | |
799 for (n = 0; ngx_modules[n]; n++) { | |
800 if (ngx_modules[n]->init_process) { | |
801 if (ngx_modules[n]->init_process(cycle) == NGX_ERROR) { | |
802 /* fatal */ | |
803 exit(2); | |
804 } | |
805 } | |
806 } | |
807 | |
808 while (!ngx_quit) { | |
809 | |
810 if (ngx_exiting) { | |
811 | |
812 c = cycle->connections; | |
813 | |
814 for (i = 0; i < cycle->connection_n; i++) { | |
815 | |
816 /* THREAD: lock */ | |
817 | |
818 if (c[i].fd != -1 && c[i].idle) { | |
819 c[i].close = 1; | |
820 c[i].read->handler(c[i].read); | |
821 } | |
822 } | |
823 | |
824 if (ngx_event_timer_rbtree.root | |
825 == ngx_event_timer_rbtree.sentinel) | |
826 { | |
827 break; | |
828 } | |
829 } | |
830 | |
831 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "worker cycle"); | |
832 | |
833 ngx_process_events_and_timers(cycle); | |
834 | |
835 if (ngx_terminate) { | |
836 return 0; | |
837 } | |
838 | |
839 if (ngx_quit) { | |
840 ngx_quit = 0; | |
841 | |
842 if (!ngx_exiting) { | |
843 ngx_close_listening_sockets(cycle); | |
844 ngx_exiting = 1; | |
845 } | |
846 } | |
847 | |
848 if (ngx_reopen) { | |
849 ngx_reopen = 0; | |
850 ngx_reopen_files(cycle, -1); | |
851 } | |
852 } | |
853 | |
854 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
855 | |
856 return 0; | |
857 } | |
858 | |
859 | |
860 static void | |
861 ngx_worker_process_exit(ngx_cycle_t *cycle) | |
862 { | |
863 ngx_uint_t i; | |
864 ngx_connection_t *c; | |
865 | |
866 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); | |
867 | |
868 for (i = 0; ngx_modules[i]; i++) { | |
869 if (ngx_modules[i]->exit_process) { | |
870 ngx_modules[i]->exit_process(cycle); | |
871 } | |
872 } | |
873 | |
874 if (ngx_exiting) { | |
875 c = cycle->connections; | |
876 for (i = 0; i < cycle->connection_n; i++) { | |
877 if (c[i].fd != -1 | |
878 && c[i].read | |
879 && !c[i].read->accept | |
880 && !c[i].read->channel | |
881 && !c[i].read->resolver) | |
882 { | |
883 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
884 "open socket #%d left in connection %ui", | |
885 c[i].fd, i); | |
886 } | |
887 } | |
461 | 888 } |
889 | |
2725 | 890 ngx_destroy_pool(cycle->pool); |
891 | |
892 exit(0); | |
893 } | |
894 | |
895 | |
896 static ngx_thread_value_t __stdcall | |
897 ngx_cache_manager_thread(void *data) | |
898 { | |
899 u_long ev; | |
900 HANDLE events[2]; | |
901 ngx_err_t err; | |
902 ngx_cycle_t *cycle; | |
903 | |
904 cycle = (ngx_cycle_t *) ngx_cycle; | |
905 | |
906 events[0] = ngx_cache_manager_event; | |
907 events[1] = ngx_cache_manager_mutex; | |
908 | |
909 for ( ;; ) { | |
910 ev = WaitForMultipleObjects(2, events, 0, INFINITE); | |
911 | |
912 err = ngx_errno; | |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
913 ngx_time_update(); |
2725 | 914 |
915 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, | |
916 "cache manager WaitForMultipleObjects: %ul", ev); | |
917 | |
918 if (ev == WAIT_FAILED) { | |
919 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
920 "WaitForMultipleObjects() failed"); | |
921 } | |
922 | |
923 /* | |
924 * ev == WAIT_OBJECT_0 | |
925 * ev == WAIT_OBJECT_0 + 1 | |
926 * ev == WAIT_ABANDONED_0 + 1 | |
927 */ | |
928 | |
929 if (ngx_terminate || ngx_quit) { | |
930 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
931 return 0; | |
932 } | |
933 | |
3021 | 934 break; |
2725 | 935 } |
936 | |
937 for ( ;; ) { | |
938 | |
939 if (ngx_terminate || ngx_quit) { | |
940 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); | |
941 break; | |
942 } | |
943 | |
944 ngx_cache_manager_process_handler(); | |
945 } | |
946 | |
947 if (ReleaseMutex(ngx_cache_manager_mutex) == 0) { | |
948 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
949 "ReleaseMutex() failed"); | |
950 } | |
951 | |
952 return 0; | |
953 } | |
954 | |
955 | |
956 static void | |
957 ngx_cache_manager_process_handler(void) | |
958 { | |
959 u_long ev; | |
960 time_t next, n; | |
961 ngx_uint_t i; | |
962 ngx_path_t **path; | |
963 | |
964 next = 60 * 60; | |
965 | |
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966 path = ngx_cycle->paths.elts; |
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967 for (i = 0; i < ngx_cycle->paths.nelts; i++) { |
2725 | 968 |
969 if (path[i]->manager) { | |
970 n = path[i]->manager(path[i]->data); | |
971 | |
972 next = (n <= next) ? n : next; | |
973 | |
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974 ngx_time_update(); |
2725 | 975 } |
976 } | |
977 | |
978 if (next == 0) { | |
979 next = 1; | |
980 } | |
981 | |
982 ev = WaitForSingleObject(ngx_cache_manager_event, (u_long) next * 1000); | |
983 | |
984 if (ev != WAIT_TIMEOUT) { | |
985 | |
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986 ngx_time_update(); |
2725 | 987 |
988 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
989 "cache manager WaitForSingleObject: %ul", ev); | |
990 } | |
991 } | |
992 | |
993 | |
3022 | 994 static ngx_thread_value_t __stdcall |
995 ngx_cache_loader_thread(void *data) | |
996 { | |
997 ngx_uint_t i; | |
998 ngx_path_t **path; | |
999 ngx_cycle_t *cycle; | |
1000 | |
1001 ngx_msleep(60000); | |
1002 | |
1003 cycle = (ngx_cycle_t *) ngx_cycle; | |
1004 | |
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1005 path = cycle->paths.elts; |
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1006 for (i = 0; i < cycle->paths.nelts; i++) { |
3022 | 1007 |
1008 if (ngx_terminate || ngx_quit) { | |
1009 break; | |
1010 } | |
1011 | |
1012 if (path[i]->loader) { | |
1013 path[i]->loader(path[i]->data); | |
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1014 ngx_time_update(); |
3022 | 1015 } |
1016 } | |
1017 | |
1018 return 0; | |
1019 } | |
1020 | |
1021 | |
2725 | 1022 void |
1023 ngx_single_process_cycle(ngx_cycle_t *cycle) | |
1024 { | |
1025 ngx_int_t i; | |
1026 ngx_tid_t tid; | |
1027 | |
1028 for (i = 0; ngx_modules[i]; i++) { | |
1029 if (ngx_modules[i]->init_process) { | |
1030 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) { | |
1031 /* fatal */ | |
1032 exit(2); | |
1033 } | |
1034 } | |
1035 } | |
1036 | |
1037 ngx_process_init(cycle); | |
1038 | |
1039 ngx_console_init(cycle); | |
1040 | |
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1041 if (ngx_create_signal_events(cycle) != NGX_OK) { |
461 | 1042 exit(2); |
1043 } | |
1044 | |
2725 | 1045 if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) { |
461 | 1046 /* fatal */ |
1047 exit(2); | |
1048 } | |
1049 | |
2725 | 1050 /* STUB */ |
1051 WaitForSingleObject(ngx_stop_event, INFINITE); | |
461 | 1052 } |
1053 | |
1054 | |
2725 | 1055 ngx_int_t |
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1056 ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid) |
461 | 1057 { |
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1058 HANDLE ev; |
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1059 ngx_int_t rc; |
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1060 char evn[NGX_PROCESS_SYNC_NAME]; |
461 | 1061 |
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1062 ngx_sprintf((u_char *) evn, "Global\\ngx_%s_%ul%Z", sig, pid); |
2725 | 1063 |
1064 ev = OpenEvent(EVENT_MODIFY_STATE, 0, evn); | |
1065 if (ev == NULL) { | |
1066 ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, | |
1067 "OpenEvent(\"%s\") failed", evn); | |
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1068 return 1; |
2725 | 1069 } |
461 | 1070 |
2725 | 1071 if (SetEvent(ev) == 0) { |
1072 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
1073 "SetEvent(\"%s\") failed", evn); | |
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1074 rc = 1; |
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1075 |
2725 | 1076 } else { |
1077 rc = 0; | |
1078 } | |
1079 | |
1080 ngx_close_handle(ev); | |
1081 | |
1082 return rc; | |
1083 } | |
461 | 1084 |
1085 | |
2725 | 1086 void |
1087 ngx_close_handle(HANDLE h) | |
1088 { | |
1089 if (CloseHandle(h) == 0) { | |
1090 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, | |
1091 "CloseHandle(%p) failed", h); | |
461 | 1092 } |
1093 } |