|
0
|
1
|
|
|
2 /*
|
|
|
3 * Copyright (C) Igor Sysoev
|
|
|
4 */
|
|
|
5
|
|
|
6
|
|
|
7 #include <ngx_config.h>
|
|
|
8 #include <ngx_core.h>
|
|
|
9 #include <ngx_event.h>
|
|
|
10
|
|
|
11
|
|
|
12 #define DEFAULT_CONNECTIONS 512
|
|
|
13
|
|
|
14
|
|
16
|
15 extern ngx_module_t ngx_kqueue_module;
|
|
|
16 extern ngx_module_t ngx_devpoll_module;
|
|
|
17 extern ngx_module_t ngx_epoll_module;
|
|
|
18 extern ngx_module_t ngx_rtsig_module;
|
|
0
|
19 extern ngx_module_t ngx_select_module;
|
|
|
20
|
|
|
21
|
|
|
22 static ngx_int_t ngx_event_module_init(ngx_cycle_t *cycle);
|
|
|
23 static ngx_int_t ngx_event_process_init(ngx_cycle_t *cycle);
|
|
|
24 static char *ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
|
|
|
25
|
|
|
26 static char *ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
58
|
27 void *conf);
|
|
0
|
28 static char *ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
|
|
|
29 static char *ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
58
|
30 void *conf);
|
|
0
|
31
|
|
|
32 static void *ngx_event_create_conf(ngx_cycle_t *cycle);
|
|
|
33 static char *ngx_event_init_conf(ngx_cycle_t *cycle, void *conf);
|
|
|
34
|
|
|
35
|
|
112
|
36 static ngx_uint_t ngx_timer_resolution;
|
|
|
37 sig_atomic_t ngx_event_timer_alarm;
|
|
|
38
|
|
44
|
39 static ngx_uint_t ngx_event_max_module;
|
|
0
|
40
|
|
44
|
41 ngx_uint_t ngx_event_flags;
|
|
|
42 ngx_event_actions_t ngx_event_actions;
|
|
0
|
43
|
|
|
44
|
|
110
|
45 ngx_atomic_t connection_counter = 1;
|
|
42
|
46 ngx_atomic_t *ngx_connection_counter = &connection_counter;
|
|
0
|
47
|
|
|
48
|
|
42
|
49 ngx_atomic_t *ngx_accept_mutex_ptr;
|
|
160
|
50 ngx_shmtx_t ngx_accept_mutex;
|
|
|
51 ngx_uint_t ngx_use_accept_mutex;
|
|
44
|
52 ngx_uint_t ngx_accept_mutex_held;
|
|
|
53 ngx_msec_t ngx_accept_mutex_delay;
|
|
|
54 ngx_int_t ngx_accept_disabled;
|
|
110
|
55 ngx_file_t ngx_accept_mutex_lock_file;
|
|
0
|
56
|
|
|
57
|
|
|
58 #if (NGX_STAT_STUB)
|
|
|
59
|
|
|
60 ngx_atomic_t ngx_stat_accepted0;
|
|
|
61 ngx_atomic_t *ngx_stat_accepted = &ngx_stat_accepted0;
|
|
44
|
62 ngx_atomic_t ngx_stat_handled0;
|
|
|
63 ngx_atomic_t *ngx_stat_handled = &ngx_stat_handled0;
|
|
0
|
64 ngx_atomic_t ngx_stat_requests0;
|
|
|
65 ngx_atomic_t *ngx_stat_requests = &ngx_stat_requests0;
|
|
|
66 ngx_atomic_t ngx_stat_active0;
|
|
|
67 ngx_atomic_t *ngx_stat_active = &ngx_stat_active0;
|
|
|
68 ngx_atomic_t ngx_stat_reading0;
|
|
|
69 ngx_atomic_t *ngx_stat_reading = &ngx_stat_reading0;
|
|
|
70 ngx_atomic_t ngx_stat_writing0;
|
|
44
|
71 ngx_atomic_t *ngx_stat_writing = &ngx_stat_writing0;
|
|
0
|
72
|
|
|
73 #endif
|
|
|
74
|
|
|
75
|
|
|
76
|
|
|
77 static ngx_command_t ngx_events_commands[] = {
|
|
|
78
|
|
|
79 { ngx_string("events"),
|
|
|
80 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
|
|
|
81 ngx_events_block,
|
|
|
82 0,
|
|
|
83 0,
|
|
|
84 NULL },
|
|
|
85
|
|
|
86 ngx_null_command
|
|
|
87 };
|
|
|
88
|
|
126
|
89
|
|
0
|
90 static ngx_core_module_t ngx_events_module_ctx = {
|
|
|
91 ngx_string("events"),
|
|
|
92 NULL,
|
|
|
93 NULL
|
|
126
|
94 };
|
|
0
|
95
|
|
|
96
|
|
|
97 ngx_module_t ngx_events_module = {
|
|
58
|
98 NGX_MODULE_V1,
|
|
0
|
99 &ngx_events_module_ctx, /* module context */
|
|
|
100 ngx_events_commands, /* module directives */
|
|
|
101 NGX_CORE_MODULE, /* module type */
|
|
90
|
102 NULL, /* init master */
|
|
0
|
103 NULL, /* init module */
|
|
90
|
104 NULL, /* init process */
|
|
|
105 NULL, /* init thread */
|
|
|
106 NULL, /* exit thread */
|
|
|
107 NULL, /* exit process */
|
|
|
108 NULL, /* exit master */
|
|
|
109 NGX_MODULE_V1_PADDING
|
|
0
|
110 };
|
|
|
111
|
|
|
112
|
|
|
113 static ngx_str_t event_core_name = ngx_string("event_core");
|
|
|
114
|
|
|
115
|
|
|
116 static ngx_command_t ngx_event_core_commands[] = {
|
|
|
117
|
|
92
|
118 { ngx_string("worker_connections"),
|
|
|
119 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
120 ngx_event_connections,
|
|
|
121 0,
|
|
|
122 0,
|
|
|
123 NULL },
|
|
|
124
|
|
0
|
125 { ngx_string("connections"),
|
|
|
126 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
127 ngx_event_connections,
|
|
|
128 0,
|
|
|
129 0,
|
|
|
130 NULL },
|
|
|
131
|
|
|
132 { ngx_string("use"),
|
|
|
133 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
134 ngx_event_use,
|
|
|
135 0,
|
|
|
136 0,
|
|
|
137 NULL },
|
|
|
138
|
|
|
139 { ngx_string("multi_accept"),
|
|
|
140 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
141 ngx_conf_set_flag_slot,
|
|
|
142 0,
|
|
|
143 offsetof(ngx_event_conf_t, multi_accept),
|
|
|
144 NULL },
|
|
|
145
|
|
|
146 { ngx_string("accept_mutex"),
|
|
|
147 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
148 ngx_conf_set_flag_slot,
|
|
|
149 0,
|
|
|
150 offsetof(ngx_event_conf_t, accept_mutex),
|
|
160
|
151 NULL },
|
|
0
|
152
|
|
|
153 { ngx_string("accept_mutex_delay"),
|
|
|
154 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
155 ngx_conf_set_msec_slot,
|
|
|
156 0,
|
|
|
157 offsetof(ngx_event_conf_t, accept_mutex_delay),
|
|
|
158 NULL },
|
|
|
159
|
|
|
160 { ngx_string("debug_connection"),
|
|
|
161 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
162 ngx_event_debug_connection,
|
|
|
163 0,
|
|
|
164 0,
|
|
|
165 NULL },
|
|
|
166
|
|
|
167 ngx_null_command
|
|
|
168 };
|
|
|
169
|
|
|
170
|
|
|
171 ngx_event_module_t ngx_event_core_module_ctx = {
|
|
|
172 &event_core_name,
|
|
|
173 ngx_event_create_conf, /* create configuration */
|
|
|
174 ngx_event_init_conf, /* init configuration */
|
|
|
175
|
|
|
176 { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
|
|
|
177 };
|
|
|
178
|
|
|
179
|
|
|
180 ngx_module_t ngx_event_core_module = {
|
|
58
|
181 NGX_MODULE_V1,
|
|
0
|
182 &ngx_event_core_module_ctx, /* module context */
|
|
|
183 ngx_event_core_commands, /* module directives */
|
|
|
184 NGX_EVENT_MODULE, /* module type */
|
|
90
|
185 NULL, /* init master */
|
|
0
|
186 ngx_event_module_init, /* init module */
|
|
90
|
187 ngx_event_process_init, /* init process */
|
|
|
188 NULL, /* init thread */
|
|
|
189 NULL, /* exit thread */
|
|
|
190 NULL, /* exit process */
|
|
|
191 NULL, /* exit master */
|
|
|
192 NGX_MODULE_V1_PADDING
|
|
0
|
193 };
|
|
|
194
|
|
|
195
|
|
112
|
196 void
|
|
|
197 ngx_process_events_and_timers(ngx_cycle_t *cycle)
|
|
|
198 {
|
|
|
199 ngx_uint_t flags;
|
|
116
|
200 ngx_msec_t timer, delta;
|
|
112
|
201
|
|
|
202 if (ngx_timer_resolution) {
|
|
|
203 timer = NGX_TIMER_INFINITE;
|
|
|
204 flags = 0;
|
|
|
205
|
|
|
206 } else {
|
|
|
207 timer = ngx_event_find_timer();
|
|
|
208 flags = NGX_UPDATE_TIME;
|
|
|
209
|
|
|
210 #if (NGX_THREADS)
|
|
|
211
|
|
|
212 if (timer == NGX_TIMER_INFINITE || timer > 500) {
|
|
|
213 timer = 500;
|
|
|
214 }
|
|
|
215
|
|
|
216 #endif
|
|
|
217 }
|
|
|
218
|
|
160
|
219 if (ngx_use_accept_mutex) {
|
|
112
|
220 if (ngx_accept_disabled > 0) {
|
|
|
221 ngx_accept_disabled--;
|
|
|
222
|
|
|
223 } else {
|
|
|
224 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
|
|
|
225 return;
|
|
|
226 }
|
|
|
227
|
|
|
228 if (ngx_accept_mutex_held) {
|
|
|
229 flags |= NGX_POST_EVENTS;
|
|
|
230
|
|
|
231 } else {
|
|
|
232 if (timer == NGX_TIMER_INFINITE
|
|
|
233 || timer > ngx_accept_mutex_delay)
|
|
|
234 {
|
|
|
235 timer = ngx_accept_mutex_delay;
|
|
|
236 }
|
|
|
237 }
|
|
|
238 }
|
|
|
239 }
|
|
|
240
|
|
116
|
241 delta = ngx_current_msec;
|
|
|
242
|
|
112
|
243 (void) ngx_process_events(cycle, timer, flags);
|
|
|
244
|
|
116
|
245 delta = ngx_current_msec - delta;
|
|
|
246
|
|
|
247 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
248 "timer delta: %M", delta);
|
|
|
249
|
|
112
|
250 if (ngx_posted_accept_events) {
|
|
|
251 ngx_event_process_posted(cycle, &ngx_posted_accept_events);
|
|
|
252 }
|
|
|
253
|
|
|
254 if (ngx_accept_mutex_held) {
|
|
160
|
255 ngx_shmtx_unlock(&ngx_accept_mutex);
|
|
112
|
256 }
|
|
|
257
|
|
122
|
258 if (delta) {
|
|
|
259 ngx_event_expire_timers();
|
|
|
260 }
|
|
|
261
|
|
112
|
262 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
263 "posted events %p", ngx_posted_events);
|
|
|
264
|
|
|
265 if (ngx_posted_events) {
|
|
|
266 if (ngx_threaded) {
|
|
|
267 ngx_wakeup_worker_thread(cycle);
|
|
|
268
|
|
|
269 } else {
|
|
|
270 ngx_event_process_posted(cycle, &ngx_posted_events);
|
|
|
271 }
|
|
|
272 }
|
|
|
273 }
|
|
|
274
|
|
|
275
|
|
58
|
276 ngx_int_t
|
|
|
277 ngx_handle_read_event(ngx_event_t *rev, u_int flags)
|
|
|
278 {
|
|
|
279 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
126
|
280
|
|
58
|
281 /* kqueue, epoll */
|
|
|
282
|
|
|
283 if (!rev->active && !rev->ready) {
|
|
|
284 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_CLEAR_EVENT)
|
|
|
285 == NGX_ERROR)
|
|
|
286 {
|
|
|
287 return NGX_ERROR;
|
|
|
288 }
|
|
|
289 }
|
|
126
|
290
|
|
58
|
291 return NGX_OK;
|
|
|
292
|
|
|
293 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
294
|
|
|
295 /* select, poll, /dev/poll */
|
|
|
296
|
|
|
297 if (!rev->active && !rev->ready) {
|
|
|
298 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT)
|
|
|
299 == NGX_ERROR)
|
|
|
300 {
|
|
|
301 return NGX_ERROR;
|
|
|
302 }
|
|
|
303
|
|
|
304 return NGX_OK;
|
|
|
305 }
|
|
|
306
|
|
|
307 if (rev->active && (rev->ready || (flags & NGX_CLOSE_EVENT))) {
|
|
|
308 if (ngx_del_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT | flags)
|
|
|
309 == NGX_ERROR)
|
|
|
310 {
|
|
|
311 return NGX_ERROR;
|
|
|
312 }
|
|
|
313
|
|
|
314 return NGX_OK;
|
|
|
315 }
|
|
|
316
|
|
|
317 } else if (ngx_event_flags & NGX_USE_ONESHOT_EVENT) {
|
|
|
318
|
|
|
319 /* event ports */
|
|
|
320
|
|
|
321 if (!rev->active) {
|
|
|
322 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_ONESHOT_EVENT)
|
|
|
323 == NGX_ERROR)
|
|
|
324 {
|
|
|
325 return NGX_ERROR;
|
|
|
326 }
|
|
|
327 }
|
|
126
|
328
|
|
58
|
329 return NGX_OK;
|
|
|
330 }
|
|
|
331
|
|
|
332 /* aio, iocp, rtsig */
|
|
|
333
|
|
|
334 return NGX_OK;
|
|
|
335 }
|
|
|
336
|
|
|
337
|
|
|
338 ngx_int_t
|
|
|
339 ngx_handle_write_event(ngx_event_t *wev, size_t lowat)
|
|
|
340 {
|
|
|
341 ngx_connection_t *c;
|
|
|
342
|
|
|
343 if (lowat) {
|
|
|
344 c = (ngx_connection_t *) wev->data;
|
|
|
345
|
|
|
346 if (ngx_send_lowat(c, lowat) == NGX_ERROR) {
|
|
|
347 return NGX_ERROR;
|
|
|
348 }
|
|
|
349 }
|
|
|
350
|
|
|
351 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
|
352
|
|
|
353 /* kqueue, epoll */
|
|
|
354
|
|
|
355 if (!wev->active && !wev->ready) {
|
|
|
356 if (ngx_add_event(wev, NGX_WRITE_EVENT,
|
|
|
357 NGX_CLEAR_EVENT | (lowat ? NGX_LOWAT_EVENT : 0))
|
|
|
358 == NGX_ERROR)
|
|
|
359 {
|
|
|
360 return NGX_ERROR;
|
|
|
361 }
|
|
|
362 }
|
|
|
363
|
|
|
364 return NGX_OK;
|
|
|
365
|
|
|
366 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
367
|
|
|
368 /* select, poll, /dev/poll */
|
|
|
369
|
|
|
370 if (!wev->active && !wev->ready) {
|
|
|
371 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
|
|
|
372 == NGX_ERROR)
|
|
|
373 {
|
|
|
374 return NGX_ERROR;
|
|
|
375 }
|
|
|
376
|
|
|
377 return NGX_OK;
|
|
|
378 }
|
|
|
379
|
|
|
380 if (wev->active && wev->ready) {
|
|
|
381 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
|
|
|
382 == NGX_ERROR)
|
|
|
383 {
|
|
|
384 return NGX_ERROR;
|
|
|
385 }
|
|
|
386
|
|
|
387 return NGX_OK;
|
|
|
388 }
|
|
|
389
|
|
|
390 } else if (ngx_event_flags & NGX_USE_ONESHOT_EVENT) {
|
|
|
391
|
|
|
392 /* event ports */
|
|
|
393
|
|
|
394 if (!wev->active) {
|
|
|
395 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_ONESHOT_EVENT)
|
|
|
396 == NGX_ERROR)
|
|
|
397 {
|
|
|
398 return NGX_ERROR;
|
|
|
399 }
|
|
|
400 }
|
|
126
|
401
|
|
58
|
402 return NGX_OK;
|
|
|
403 }
|
|
|
404
|
|
|
405 /* aio, iocp, rtsig */
|
|
|
406
|
|
|
407 return NGX_OK;
|
|
|
408 }
|
|
|
409
|
|
|
410
|
|
|
411 static ngx_int_t
|
|
|
412 ngx_event_module_init(ngx_cycle_t *cycle)
|
|
0
|
413 {
|
|
92
|
414 void ***cf;
|
|
154
|
415 u_char *shared;
|
|
160
|
416 size_t size, cl;
|
|
92
|
417 ngx_event_conf_t *ecf;
|
|
112
|
418 ngx_core_conf_t *ccf;
|
|
154
|
419 ngx_shm_t shm;
|
|
10
|
420 #if !(NGX_WIN32)
|
|
92
|
421 ngx_int_t limit;
|
|
|
422 struct rlimit rlmt;
|
|
|
423 #endif
|
|
22
|
424
|
|
|
425 cf = ngx_get_conf(cycle->conf_ctx, ngx_events_module);
|
|
|
426
|
|
|
427 if (cf == NULL) {
|
|
|
428 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
429 "no \"events\" section in configuration");
|
|
|
430 return NGX_ERROR;
|
|
|
431 }
|
|
|
432
|
|
|
433 ecf = (*cf)[ngx_event_core_module.ctx_index];
|
|
|
434
|
|
110
|
435 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
22
|
436 "using the \"%s\" event method", ecf->name);
|
|
|
437
|
|
112
|
438 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
439
|
|
112
|
440 ngx_timer_resolution = ccf->timer_resolution;
|
|
|
441
|
|
|
442 #if !(NGX_WIN32)
|
|
0
|
443
|
|
92
|
444 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
445 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
446 "getrlimit(RLIMIT_NOFILE) failed, ignored");
|
|
|
447
|
|
|
448 } else {
|
|
|
449 if (ecf->connections > (ngx_uint_t) rlmt.rlim_cur
|
|
|
450 && (ccf->rlimit_nofile == NGX_CONF_UNSET
|
|
|
451 || ecf->connections > (ngx_uint_t) ccf->rlimit_nofile))
|
|
|
452 {
|
|
|
453 limit = (ccf->rlimit_nofile == NGX_CONF_UNSET) ?
|
|
|
454 (ngx_int_t) rlmt.rlim_cur : ccf->rlimit_nofile;
|
|
|
455
|
|
|
456 ngx_log_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
457 "%ui worker_connections are more than "
|
|
|
458 "open file resource limit: %i",
|
|
|
459 ecf->connections, limit);
|
|
|
460 }
|
|
|
461 }
|
|
|
462
|
|
154
|
463 #endif /* !(NGX_WIN32) */
|
|
|
464
|
|
92
|
465
|
|
160
|
466 if (ccf->master == 0) {
|
|
0
|
467 return NGX_OK;
|
|
|
468 }
|
|
|
469
|
|
|
470
|
|
160
|
471 if (ngx_accept_mutex_ptr) {
|
|
|
472
|
|
|
473 /* reinit ngx_accept_mutex */
|
|
|
474
|
|
|
475 if (ngx_shmtx_create(&ngx_accept_mutex, (void *) ngx_accept_mutex_ptr,
|
|
|
476 ccf->lock_file.data, cycle->log)
|
|
|
477 != NGX_OK)
|
|
|
478 {
|
|
|
479 return NGX_ERROR;
|
|
|
480 }
|
|
0
|
481
|
|
160
|
482 return NGX_OK;
|
|
|
483 }
|
|
|
484
|
|
|
485
|
|
|
486 /* cl should be equal or bigger than cache line size */
|
|
|
487
|
|
|
488 cl = 128;
|
|
|
489
|
|
|
490 size = cl /* ngx_accept_mutex */
|
|
|
491 + cl; /* ngx_connection_counter */
|
|
0
|
492
|
|
|
493 #if (NGX_STAT_STUB)
|
|
|
494
|
|
160
|
495 size += cl /* ngx_stat_accepted */
|
|
|
496 + cl /* ngx_stat_handled */
|
|
|
497 + cl /* ngx_stat_requests */
|
|
|
498 + cl /* ngx_stat_active */
|
|
|
499 + cl /* ngx_stat_reading */
|
|
|
500 + cl; /* ngx_stat_writing */
|
|
0
|
501
|
|
|
502 #endif
|
|
|
503
|
|
154
|
504 shm.size = size;
|
|
|
505 shm.log = cycle->log;
|
|
|
506
|
|
|
507 if (ngx_shm_alloc(&shm) != NGX_OK) {
|
|
0
|
508 return NGX_ERROR;
|
|
|
509 }
|
|
|
510
|
|
154
|
511 shared = shm.addr;
|
|
|
512
|
|
0
|
513 ngx_accept_mutex_ptr = (ngx_atomic_t *) shared;
|
|
160
|
514
|
|
|
515 if (ngx_shmtx_create(&ngx_accept_mutex, shared, ccf->lock_file.data,
|
|
|
516 cycle->log)
|
|
|
517 != NGX_OK)
|
|
|
518 {
|
|
|
519 return NGX_ERROR;
|
|
|
520 }
|
|
|
521
|
|
|
522 ngx_connection_counter = (ngx_atomic_t *) (shared + 1 * cl);
|
|
0
|
523
|
|
|
524 #if (NGX_STAT_STUB)
|
|
|
525
|
|
160
|
526 ngx_stat_accepted = (ngx_atomic_t *) (shared + 2 * cl);
|
|
|
527 ngx_stat_handled = (ngx_atomic_t *) (shared + 3 * cl);
|
|
|
528 ngx_stat_requests = (ngx_atomic_t *) (shared + 4 * cl);
|
|
|
529 ngx_stat_active = (ngx_atomic_t *) (shared + 5 * cl);
|
|
|
530 ngx_stat_reading = (ngx_atomic_t *) (shared + 6 * cl);
|
|
|
531 ngx_stat_writing = (ngx_atomic_t *) (shared + 7 * cl);
|
|
0
|
532
|
|
|
533 #endif
|
|
|
534
|
|
112
|
535 *ngx_connection_counter = 1;
|
|
|
536
|
|
0
|
537 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
538 "counter: %p, %d",
|
|
0
|
539 ngx_connection_counter, *ngx_connection_counter);
|
|
|
540
|
|
|
541 return NGX_OK;
|
|
|
542 }
|
|
|
543
|
|
|
544
|
|
112
|
545 #if !(NGX_WIN32)
|
|
|
546
|
|
|
547 void
|
|
|
548 ngx_timer_signal_handler(int signo)
|
|
|
549 {
|
|
|
550 ngx_event_timer_alarm = 1;
|
|
|
551
|
|
|
552 ngx_time_update(0, 0);
|
|
|
553
|
|
|
554 #if 1
|
|
|
555 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0, "timer signal");
|
|
|
556 #endif
|
|
|
557 }
|
|
|
558
|
|
|
559 #endif
|
|
|
560
|
|
|
561
|
|
58
|
562 static ngx_int_t
|
|
|
563 ngx_event_process_init(ngx_cycle_t *cycle)
|
|
0
|
564 {
|
|
|
565 ngx_uint_t m, i;
|
|
|
566 ngx_event_t *rev, *wev;
|
|
92
|
567 ngx_listening_t *ls;
|
|
|
568 ngx_connection_t *c, *next, *old;
|
|
0
|
569 ngx_core_conf_t *ccf;
|
|
|
570 ngx_event_conf_t *ecf;
|
|
|
571 ngx_event_module_t *module;
|
|
10
|
572 #if (NGX_WIN32)
|
|
0
|
573 ngx_iocp_conf_t *iocpcf;
|
|
92
|
574 #else
|
|
|
575 struct rlimit rlmt;
|
|
112
|
576 struct sigaction sa;
|
|
|
577 struct itimerval itv;
|
|
0
|
578 #endif
|
|
|
579
|
|
|
580 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
581 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module);
|
|
|
582
|
|
160
|
583 if (ccf->worker_processes > 1 && ecf->accept_mutex) {
|
|
|
584 ngx_use_accept_mutex = 1;
|
|
0
|
585 ngx_accept_mutex_held = 0;
|
|
|
586 ngx_accept_mutex_delay = ecf->accept_mutex_delay;
|
|
160
|
587
|
|
|
588 } else {
|
|
|
589 ngx_use_accept_mutex = 0;
|
|
0
|
590 }
|
|
|
591
|
|
|
592 #if (NGX_THREADS)
|
|
50
|
593 ngx_posted_events_mutex = ngx_mutex_init(cycle->log, 0);
|
|
|
594 if (ngx_posted_events_mutex == NULL) {
|
|
0
|
595 return NGX_ERROR;
|
|
|
596 }
|
|
|
597 #endif
|
|
|
598
|
|
|
599 if (ngx_event_timer_init(cycle->log) == NGX_ERROR) {
|
|
|
600 return NGX_ERROR;
|
|
|
601 }
|
|
|
602
|
|
|
603 cycle->connection_n = ecf->connections;
|
|
|
604
|
|
|
605 for (m = 0; ngx_modules[m]; m++) {
|
|
|
606 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
607 continue;
|
|
|
608 }
|
|
|
609
|
|
|
610 if (ngx_modules[m]->ctx_index == ecf->use) {
|
|
|
611 module = ngx_modules[m]->ctx;
|
|
112
|
612 if (module->actions.init(cycle, ngx_timer_resolution) == NGX_ERROR)
|
|
|
613 {
|
|
0
|
614 /* fatal */
|
|
|
615 exit(2);
|
|
|
616 }
|
|
|
617 break;
|
|
|
618 }
|
|
|
619 }
|
|
|
620
|
|
92
|
621 #if !(NGX_WIN32)
|
|
|
622
|
|
112
|
623 if (ngx_timer_resolution && !(ngx_event_flags & NGX_USE_TIMER_EVENT)) {
|
|
|
624
|
|
|
625 ngx_memzero(&sa, sizeof(struct sigaction));
|
|
|
626 sa.sa_handler = ngx_timer_signal_handler;
|
|
|
627 sigemptyset(&sa.sa_mask);
|
|
|
628
|
|
|
629 if (sigaction(SIGALRM, &sa, NULL) == -1) {
|
|
|
630 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
631 "sigaction(SIGALRM) failed");
|
|
|
632 return NGX_ERROR;
|
|
|
633 }
|
|
|
634
|
|
|
635 itv.it_interval.tv_sec = ngx_timer_resolution / 1000;
|
|
|
636 itv.it_interval.tv_usec = (ngx_timer_resolution % 1000) * 1000;
|
|
|
637 itv.it_value.tv_sec = ngx_timer_resolution / 1000;
|
|
|
638 itv.it_value.tv_usec = (ngx_timer_resolution % 1000 ) * 1000;
|
|
|
639
|
|
|
640 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
|
|
|
641 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
642 "setitimer() failed");
|
|
126
|
643 }
|
|
112
|
644 }
|
|
|
645
|
|
92
|
646 if (ngx_event_flags & NGX_USE_FD_EVENT) {
|
|
|
647
|
|
|
648 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
649 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
650 "getrlimit(RLIMIT_NOFILE) failed");
|
|
|
651 return NGX_ERROR;
|
|
|
652 }
|
|
|
653
|
|
|
654 cycle->files_n = (ngx_uint_t) rlmt.rlim_cur;
|
|
|
655
|
|
|
656 cycle->files = ngx_calloc(sizeof(ngx_connection_t *) * cycle->files_n,
|
|
|
657 cycle->log);
|
|
|
658 if (cycle->files == NULL) {
|
|
|
659 return NGX_ERROR;
|
|
|
660 }
|
|
|
661 }
|
|
|
662
|
|
|
663 #endif
|
|
|
664
|
|
110
|
665 cycle->connections = ngx_alloc(sizeof(ngx_connection_t) * ecf->connections,
|
|
0
|
666 cycle->log);
|
|
110
|
667 if (cycle->connections == NULL) {
|
|
0
|
668 return NGX_ERROR;
|
|
|
669 }
|
|
|
670
|
|
110
|
671 c = cycle->connections;
|
|
0
|
672
|
|
110
|
673 cycle->read_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
0
|
674 cycle->log);
|
|
110
|
675 if (cycle->read_events == NULL) {
|
|
0
|
676 return NGX_ERROR;
|
|
|
677 }
|
|
|
678
|
|
110
|
679 rev = cycle->read_events;
|
|
0
|
680 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
681 rev[i].closed = 1;
|
|
30
|
682 rev[i].instance = 1;
|
|
0
|
683 #if (NGX_THREADS)
|
|
|
684 rev[i].lock = &c[i].lock;
|
|
|
685 rev[i].own_lock = &c[i].lock;
|
|
|
686 #endif
|
|
|
687 }
|
|
|
688
|
|
110
|
689 cycle->write_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
30
|
690 cycle->log);
|
|
110
|
691 if (cycle->write_events == NULL) {
|
|
0
|
692 return NGX_ERROR;
|
|
|
693 }
|
|
|
694
|
|
110
|
695 wev = cycle->write_events;
|
|
0
|
696 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
697 wev[i].closed = 1;
|
|
|
698 #if (NGX_THREADS)
|
|
|
699 wev[i].lock = &c[i].lock;
|
|
|
700 wev[i].own_lock = &c[i].lock;
|
|
|
701 #endif
|
|
|
702 }
|
|
|
703
|
|
92
|
704 i = cycle->connection_n;
|
|
|
705 next = NULL;
|
|
|
706
|
|
|
707 do {
|
|
|
708 i--;
|
|
|
709
|
|
|
710 c[i].data = next;
|
|
110
|
711 c[i].read = &cycle->read_events[i];
|
|
|
712 c[i].write = &cycle->write_events[i];
|
|
92
|
713 c[i].fd = (ngx_socket_t) -1;
|
|
|
714
|
|
|
715 next = &c[i];
|
|
|
716
|
|
|
717 #if (NGX_THREADS)
|
|
|
718 c[i].lock = 0;
|
|
|
719 #endif
|
|
|
720 } while (i);
|
|
|
721
|
|
|
722 cycle->free_connections = next;
|
|
|
723 cycle->free_connection_n = ecf->connections;
|
|
|
724
|
|
0
|
725 /* for each listening socket */
|
|
|
726
|
|
92
|
727 ls = cycle->listening.elts;
|
|
0
|
728 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
729
|
|
92
|
730 c = ngx_get_connection(ls[i].fd, cycle->log);
|
|
0
|
731
|
|
92
|
732 if (c == NULL) {
|
|
|
733 return NGX_ERROR;
|
|
|
734 }
|
|
0
|
735
|
|
92
|
736 c->log = &ls[i].log;
|
|
|
737
|
|
|
738 c->listening = &ls[i];
|
|
|
739 ls[i].connection = c;
|
|
|
740
|
|
|
741 c->ctx = ls[i].ctx;
|
|
|
742 c->servers = ls[i].servers;
|
|
|
743
|
|
110
|
744 rev = c->read;
|
|
0
|
745
|
|
|
746 rev->log = c->log;
|
|
|
747 rev->accept = 1;
|
|
|
748
|
|
18
|
749 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
92
|
750 rev->deferred_accept = ls[i].deferred_accept;
|
|
0
|
751 #endif
|
|
|
752
|
|
|
753 if (!(ngx_event_flags & NGX_USE_IOCP_EVENT)) {
|
|
92
|
754 if (ls[i].previous) {
|
|
0
|
755
|
|
|
756 /*
|
|
|
757 * delete the old accept events that were bound to
|
|
|
758 * the old cycle read events array
|
|
|
759 */
|
|
|
760
|
|
92
|
761 old = ls[i].previous->connection;
|
|
|
762
|
|
|
763 if (ngx_del_event(old->read, NGX_READ_EVENT, NGX_CLOSE_EVENT)
|
|
|
764 == NGX_ERROR)
|
|
0
|
765 {
|
|
|
766 return NGX_ERROR;
|
|
|
767 }
|
|
|
768
|
|
92
|
769 old->fd = (ngx_socket_t) -1;
|
|
0
|
770 }
|
|
|
771 }
|
|
|
772
|
|
10
|
773 #if (NGX_WIN32)
|
|
0
|
774
|
|
|
775 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
|
|
58
|
776 rev->handler = ngx_event_acceptex;
|
|
0
|
777
|
|
|
778 if (ngx_add_event(rev, 0, NGX_IOCP_ACCEPT) == NGX_ERROR) {
|
|
|
779 return NGX_ERROR;
|
|
|
780 }
|
|
|
781
|
|
92
|
782 ls[i].log.handler = ngx_acceptex_log_error;
|
|
|
783
|
|
0
|
784 iocpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_iocp_module);
|
|
92
|
785 if (ngx_event_post_acceptex(&ls[i], iocpcf->post_acceptex)
|
|
|
786 == NGX_ERROR)
|
|
0
|
787 {
|
|
|
788 return NGX_ERROR;
|
|
|
789 }
|
|
|
790
|
|
|
791 } else {
|
|
58
|
792 rev->handler = ngx_event_accept;
|
|
10
|
793
|
|
0
|
794 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
795 return NGX_ERROR;
|
|
|
796 }
|
|
|
797 }
|
|
|
798
|
|
|
799 #else
|
|
|
800
|
|
58
|
801 rev->handler = ngx_event_accept;
|
|
0
|
802
|
|
160
|
803 if (ngx_use_accept_mutex) {
|
|
0
|
804 continue;
|
|
|
805 }
|
|
|
806
|
|
|
807 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) {
|
|
|
808 if (ngx_add_conn(c) == NGX_ERROR) {
|
|
|
809 return NGX_ERROR;
|
|
|
810 }
|
|
|
811
|
|
|
812 } else {
|
|
|
813 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
814 return NGX_ERROR;
|
|
|
815 }
|
|
|
816 }
|
|
|
817
|
|
|
818 #endif
|
|
92
|
819
|
|
0
|
820 }
|
|
|
821
|
|
|
822 return NGX_OK;
|
|
|
823 }
|
|
|
824
|
|
|
825
|
|
58
|
826 ngx_int_t
|
|
|
827 ngx_send_lowat(ngx_connection_t *c, size_t lowat)
|
|
2
|
828 {
|
|
|
829 int sndlowat;
|
|
|
830
|
|
4
|
831 #if (NGX_HAVE_LOWAT_EVENT)
|
|
2
|
832
|
|
4
|
833 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
2
|
834 c->write->available = lowat;
|
|
|
835 return NGX_OK;
|
|
|
836 }
|
|
|
837
|
|
|
838 #endif
|
|
126
|
839
|
|
2
|
840 if (lowat == 0 || c->sndlowat) {
|
|
|
841 return NGX_OK;
|
|
|
842 }
|
|
|
843
|
|
|
844 sndlowat = (int) lowat;
|
|
|
845
|
|
|
846 if (setsockopt(c->fd, SOL_SOCKET, SO_SNDLOWAT,
|
|
|
847 (const void *) &sndlowat, sizeof(int)) == -1)
|
|
|
848 {
|
|
|
849 ngx_connection_error(c, ngx_socket_errno,
|
|
|
850 "setsockopt(SO_SNDLOWAT) failed");
|
|
|
851 return NGX_ERROR;
|
|
|
852 }
|
|
|
853
|
|
|
854 c->sndlowat = 1;
|
|
|
855
|
|
|
856 return NGX_OK;
|
|
|
857 }
|
|
|
858
|
|
|
859
|
|
58
|
860 static char *
|
|
|
861 ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
862 {
|
|
50
|
863 char *rv;
|
|
0
|
864 void ***ctx;
|
|
50
|
865 ngx_uint_t i;
|
|
0
|
866 ngx_conf_t pcf;
|
|
50
|
867 ngx_event_module_t *m;
|
|
0
|
868
|
|
|
869 /* count the number of the event modules and set up their indices */
|
|
|
870
|
|
|
871 ngx_event_max_module = 0;
|
|
50
|
872 for (i = 0; ngx_modules[i]; i++) {
|
|
|
873 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
874 continue;
|
|
|
875 }
|
|
|
876
|
|
50
|
877 ngx_modules[i]->ctx_index = ngx_event_max_module++;
|
|
0
|
878 }
|
|
|
879
|
|
50
|
880 ctx = ngx_pcalloc(cf->pool, sizeof(void *));
|
|
|
881 if (ctx == NULL) {
|
|
|
882 return NGX_CONF_ERROR;
|
|
|
883 }
|
|
0
|
884
|
|
50
|
885 *ctx = ngx_pcalloc(cf->pool, ngx_event_max_module * sizeof(void *));
|
|
|
886 if (*ctx == NULL) {
|
|
|
887 return NGX_CONF_ERROR;
|
|
|
888 }
|
|
0
|
889
|
|
|
890 *(void **) conf = ctx;
|
|
|
891
|
|
50
|
892 for (i = 0; ngx_modules[i]; i++) {
|
|
|
893 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
894 continue;
|
|
|
895 }
|
|
|
896
|
|
50
|
897 m = ngx_modules[i]->ctx;
|
|
0
|
898
|
|
50
|
899 if (m->create_conf) {
|
|
|
900 (*ctx)[ngx_modules[i]->ctx_index] = m->create_conf(cf->cycle);
|
|
|
901 if ((*ctx)[ngx_modules[i]->ctx_index] == NULL) {
|
|
|
902 return NGX_CONF_ERROR;
|
|
|
903 }
|
|
0
|
904 }
|
|
|
905 }
|
|
|
906
|
|
|
907 pcf = *cf;
|
|
|
908 cf->ctx = ctx;
|
|
|
909 cf->module_type = NGX_EVENT_MODULE;
|
|
|
910 cf->cmd_type = NGX_EVENT_CONF;
|
|
50
|
911
|
|
0
|
912 rv = ngx_conf_parse(cf, NULL);
|
|
50
|
913
|
|
0
|
914 *cf = pcf;
|
|
|
915
|
|
|
916 if (rv != NGX_CONF_OK)
|
|
|
917 return rv;
|
|
|
918
|
|
50
|
919 for (i = 0; ngx_modules[i]; i++) {
|
|
|
920 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
921 continue;
|
|
|
922 }
|
|
|
923
|
|
50
|
924 m = ngx_modules[i]->ctx;
|
|
0
|
925
|
|
50
|
926 if (m->init_conf) {
|
|
|
927 rv = m->init_conf(cf->cycle, (*ctx)[ngx_modules[i]->ctx_index]);
|
|
0
|
928 if (rv != NGX_CONF_OK) {
|
|
|
929 return rv;
|
|
|
930 }
|
|
|
931 }
|
|
|
932 }
|
|
|
933
|
|
|
934 return NGX_CONF_OK;
|
|
|
935 }
|
|
|
936
|
|
|
937
|
|
58
|
938 static char *
|
|
|
939 ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
940 {
|
|
|
941 ngx_event_conf_t *ecf = conf;
|
|
|
942
|
|
|
943 ngx_str_t *value;
|
|
|
944
|
|
|
945 if (ecf->connections != NGX_CONF_UNSET_UINT) {
|
|
|
946 return "is duplicate" ;
|
|
|
947 }
|
|
|
948
|
|
130
|
949 if (ngx_strcmp(cmd->name.data, "connections") == 0) {
|
|
|
950 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
951 "the \"connections\" directive is deprecated, "
|
|
|
952 "use the \"worker_connections\" directive instead");
|
|
|
953 }
|
|
|
954
|
|
0
|
955 value = cf->args->elts;
|
|
|
956 ecf->connections = ngx_atoi(value[1].data, value[1].len);
|
|
|
957 if (ecf->connections == (ngx_uint_t) NGX_ERROR) {
|
|
|
958 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
959 "invalid number \"%V\"", &value[1]);
|
|
0
|
960
|
|
|
961 return NGX_CONF_ERROR;
|
|
|
962 }
|
|
|
963
|
|
|
964 cf->cycle->connection_n = ecf->connections;
|
|
|
965
|
|
|
966 return NGX_CONF_OK;
|
|
|
967 }
|
|
|
968
|
|
|
969
|
|
58
|
970 static char *
|
|
|
971 ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
972 {
|
|
|
973 ngx_event_conf_t *ecf = conf;
|
|
|
974
|
|
|
975 ngx_int_t m;
|
|
|
976 ngx_str_t *value;
|
|
|
977 ngx_event_conf_t *old_ecf;
|
|
|
978 ngx_event_module_t *module;
|
|
|
979
|
|
|
980 if (ecf->use != NGX_CONF_UNSET_UINT) {
|
|
|
981 return "is duplicate" ;
|
|
|
982 }
|
|
|
983
|
|
|
984 value = cf->args->elts;
|
|
|
985
|
|
|
986 if (cf->cycle->old_cycle->conf_ctx) {
|
|
|
987 old_ecf = ngx_event_get_conf(cf->cycle->old_cycle->conf_ctx,
|
|
|
988 ngx_event_core_module);
|
|
|
989 } else {
|
|
|
990 old_ecf = NULL;
|
|
|
991 }
|
|
|
992
|
|
|
993
|
|
|
994 for (m = 0; ngx_modules[m]; m++) {
|
|
|
995 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
996 continue;
|
|
|
997 }
|
|
|
998
|
|
|
999 module = ngx_modules[m]->ctx;
|
|
|
1000 if (module->name->len == value[1].len) {
|
|
|
1001 if (ngx_strcmp(module->name->data, value[1].data) == 0) {
|
|
|
1002 ecf->use = ngx_modules[m]->ctx_index;
|
|
|
1003 ecf->name = module->name->data;
|
|
|
1004
|
|
|
1005 if (ngx_process == NGX_PROCESS_SINGLE
|
|
|
1006 && old_ecf
|
|
|
1007 && old_ecf->use != ecf->use)
|
|
|
1008 {
|
|
|
1009 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
16
|
1010 "when the server runs without a master process "
|
|
|
1011 "the \"%V\" event type must be the same as "
|
|
|
1012 "in previous configuration - \"%s\" "
|
|
|
1013 "and it can not be changed on the fly, "
|
|
|
1014 "to change it you need to stop server "
|
|
|
1015 "and start it again",
|
|
|
1016 &value[1], old_ecf->name);
|
|
0
|
1017
|
|
|
1018 return NGX_CONF_ERROR;
|
|
|
1019 }
|
|
|
1020
|
|
|
1021 return NGX_CONF_OK;
|
|
|
1022 }
|
|
|
1023 }
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1027 "invalid event type \"%V\"", &value[1]);
|
|
0
|
1028
|
|
|
1029 return NGX_CONF_ERROR;
|
|
|
1030 }
|
|
|
1031
|
|
|
1032
|
|
58
|
1033 static char *
|
|
|
1034 ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
1035 {
|
|
|
1036 #if (NGX_DEBUG)
|
|
|
1037 ngx_event_conf_t *ecf = conf;
|
|
|
1038
|
|
|
1039 in_addr_t *addr;
|
|
|
1040 ngx_str_t *value;
|
|
|
1041 struct hostent *h;
|
|
|
1042
|
|
|
1043 value = cf->args->elts;
|
|
|
1044
|
|
|
1045 /* AF_INET only */
|
|
|
1046
|
|
50
|
1047 addr = ngx_array_push(&ecf->debug_connection);
|
|
|
1048 if (addr == NULL) {
|
|
0
|
1049 return NGX_CONF_ERROR;
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 *addr = inet_addr((char *) value[1].data);
|
|
|
1053
|
|
|
1054 if (*addr != INADDR_NONE) {
|
|
|
1055 return NGX_OK;
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 h = gethostbyname((char *) value[1].data);
|
|
|
1059
|
|
|
1060 if (h == NULL || h->h_addr_list[0] == NULL) {
|
|
|
1061 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1062 "host \"%s\" not found", value[1].data);
|
|
0
|
1063 return NGX_CONF_ERROR;
|
|
|
1064 }
|
|
|
1065
|
|
|
1066 *addr = *(in_addr_t *)(h->h_addr_list[0]);
|
|
|
1067
|
|
|
1068 #else
|
|
|
1069
|
|
|
1070 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1071 "\"debug_connection\" is ignored, you need to rebuild "
|
|
|
1072 "nginx using --with-debug option to enable it");
|
|
|
1073
|
|
|
1074 #endif
|
|
|
1075
|
|
|
1076 return NGX_OK;
|
|
|
1077 }
|
|
|
1078
|
|
|
1079
|
|
58
|
1080 static void *
|
|
|
1081 ngx_event_create_conf(ngx_cycle_t *cycle)
|
|
0
|
1082 {
|
|
|
1083 ngx_event_conf_t *ecf;
|
|
|
1084
|
|
50
|
1085 ecf = ngx_palloc(cycle->pool, sizeof(ngx_event_conf_t));
|
|
|
1086 if (ecf == NULL) {
|
|
|
1087 return NGX_CONF_ERROR;
|
|
|
1088 }
|
|
0
|
1089
|
|
|
1090 ecf->connections = NGX_CONF_UNSET_UINT;
|
|
|
1091 ecf->use = NGX_CONF_UNSET_UINT;
|
|
|
1092 ecf->multi_accept = NGX_CONF_UNSET;
|
|
|
1093 ecf->accept_mutex = NGX_CONF_UNSET;
|
|
|
1094 ecf->accept_mutex_delay = NGX_CONF_UNSET_MSEC;
|
|
|
1095 ecf->name = (void *) NGX_CONF_UNSET;
|
|
|
1096
|
|
|
1097 #if (NGX_DEBUG)
|
|
50
|
1098
|
|
|
1099 if (ngx_array_init(&ecf->debug_connection, cycle->pool, 4,
|
|
|
1100 sizeof(in_addr_t)) == NGX_ERROR)
|
|
|
1101 {
|
|
|
1102 return NGX_CONF_ERROR;
|
|
|
1103 }
|
|
|
1104
|
|
0
|
1105 #endif
|
|
|
1106
|
|
|
1107 return ecf;
|
|
|
1108 }
|
|
|
1109
|
|
|
1110
|
|
58
|
1111 static char *
|
|
|
1112 ngx_event_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
1113 {
|
|
|
1114 ngx_event_conf_t *ecf = conf;
|
|
16
|
1115
|
|
50
|
1116 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
|
1117 int fd;
|
|
|
1118 #endif
|
|
|
1119 #if (NGX_HAVE_RTSIG)
|
|
|
1120 ngx_uint_t rtsig;
|
|
122
|
1121 ngx_core_conf_t *ccf;
|
|
50
|
1122 #endif
|
|
16
|
1123 ngx_int_t i, connections;
|
|
|
1124 ngx_module_t *module;
|
|
|
1125 ngx_event_module_t *event_module;
|
|
|
1126
|
|
|
1127 connections = NGX_CONF_UNSET_UINT;
|
|
|
1128 module = NULL;
|
|
|
1129
|
|
18
|
1130 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
16
|
1131
|
|
|
1132 fd = epoll_create(100);
|
|
|
1133
|
|
|
1134 if (fd != -1) {
|
|
|
1135 close(fd);
|
|
|
1136 connections = DEFAULT_CONNECTIONS;
|
|
|
1137 module = &ngx_epoll_module;
|
|
|
1138
|
|
|
1139 } else if (ngx_errno != NGX_ENOSYS) {
|
|
|
1140 connections = DEFAULT_CONNECTIONS;
|
|
|
1141 module = &ngx_epoll_module;
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 #endif
|
|
|
1145
|
|
18
|
1146 #if (NGX_HAVE_RTSIG)
|
|
16
|
1147
|
|
|
1148 if (module == NULL) {
|
|
|
1149 connections = DEFAULT_CONNECTIONS;
|
|
|
1150 module = &ngx_rtsig_module;
|
|
|
1151 rtsig = 1;
|
|
50
|
1152
|
|
|
1153 } else {
|
|
|
1154 rtsig = 0;
|
|
16
|
1155 }
|
|
|
1156
|
|
|
1157 #endif
|
|
|
1158
|
|
18
|
1159 #if (NGX_HAVE_DEVPOLL)
|
|
16
|
1160
|
|
|
1161 connections = DEFAULT_CONNECTIONS;
|
|
|
1162 module = &ngx_devpoll_module;
|
|
|
1163
|
|
0
|
1164 #endif
|
|
|
1165
|
|
18
|
1166 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1167
|
|
16
|
1168 connections = DEFAULT_CONNECTIONS;
|
|
|
1169 module = &ngx_kqueue_module;
|
|
0
|
1170
|
|
16
|
1171 #endif
|
|
0
|
1172
|
|
18
|
1173 #if (NGX_HAVE_SELECT)
|
|
0
|
1174
|
|
16
|
1175 if (module == NULL) {
|
|
0
|
1176
|
|
50
|
1177 #if (NGX_WIN32 || FD_SETSIZE >= DEFAULT_CONNECTIONS)
|
|
16
|
1178 connections = DEFAULT_CONNECTIONS;
|
|
0
|
1179 #else
|
|
50
|
1180 connections = FD_SETSIZE;
|
|
16
|
1181 #endif
|
|
|
1182 module = &ngx_select_module;
|
|
|
1183 }
|
|
|
1184
|
|
0
|
1185 #endif
|
|
|
1186
|
|
16
|
1187 if (module == NULL) {
|
|
|
1188 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1189 if (ngx_modules[i]->type == NGX_EVENT_MODULE) {
|
|
|
1190 event_module = ngx_modules[i]->ctx;
|
|
0
|
1191
|
|
16
|
1192 if (ngx_strcmp(event_module->name->data, event_core_name.data)
|
|
|
1193 == 0)
|
|
|
1194 {
|
|
|
1195 continue;
|
|
|
1196 }
|
|
0
|
1197
|
|
16
|
1198 module = ngx_modules[i];
|
|
|
1199 break;
|
|
0
|
1200 }
|
|
|
1201 }
|
|
|
1202 }
|
|
|
1203
|
|
16
|
1204 if (module == NULL) {
|
|
0
|
1205 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
|
|
|
1206 return NGX_CONF_ERROR;
|
|
|
1207 }
|
|
|
1208
|
|
16
|
1209 ngx_conf_init_unsigned_value(ecf->connections, connections);
|
|
|
1210 cycle->connection_n = ecf->connections;
|
|
0
|
1211
|
|
16
|
1212 ngx_conf_init_unsigned_value(ecf->use, module->ctx_index);
|
|
0
|
1213
|
|
16
|
1214 event_module = module->ctx;
|
|
|
1215 ngx_conf_init_ptr_value(ecf->name, event_module->name->data);
|
|
0
|
1216
|
|
|
1217 ngx_conf_init_value(ecf->multi_accept, 0);
|
|
|
1218 ngx_conf_init_value(ecf->accept_mutex, 1);
|
|
|
1219 ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);
|
|
|
1220
|
|
16
|
1221
|
|
50
|
1222 #if (NGX_HAVE_RTSIG)
|
|
|
1223
|
|
|
1224 if (!rtsig) {
|
|
|
1225 return NGX_CONF_OK;
|
|
|
1226 }
|
|
|
1227
|
|
|
1228 if (ecf->accept_mutex) {
|
|
16
|
1229 return NGX_CONF_OK;
|
|
0
|
1230 }
|
|
16
|
1231
|
|
|
1232 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
1233
|
|
16
|
1234 if (ccf->worker_processes == 0) {
|
|
|
1235 return NGX_CONF_OK;
|
|
|
1236 }
|
|
|
1237
|
|
|
1238 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
1239 "the \"rtsig\" method requires \"accept_mutex\" to be on");
|
|
|
1240
|
|
|
1241 return NGX_CONF_ERROR;
|
|
122
|
1242
|
|
|
1243 #else
|
|
|
1244
|
|
|
1245 return NGX_CONF_OK;
|
|
|
1246
|
|
|
1247 #endif
|
|
0
|
1248 }
|
