|
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;
|
|
236
|
16 extern ngx_module_t ngx_eventport_module;
|
|
16
|
17 extern ngx_module_t ngx_devpoll_module;
|
|
|
18 extern ngx_module_t ngx_epoll_module;
|
|
|
19 extern ngx_module_t ngx_rtsig_module;
|
|
0
|
20 extern ngx_module_t ngx_select_module;
|
|
|
21
|
|
|
22
|
|
|
23 static ngx_int_t ngx_event_module_init(ngx_cycle_t *cycle);
|
|
|
24 static ngx_int_t ngx_event_process_init(ngx_cycle_t *cycle);
|
|
|
25 static char *ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
|
|
|
26
|
|
|
27 static char *ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
58
|
28 void *conf);
|
|
0
|
29 static char *ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
|
|
|
30 static char *ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
58
|
31 void *conf);
|
|
0
|
32
|
|
|
33 static void *ngx_event_create_conf(ngx_cycle_t *cycle);
|
|
|
34 static char *ngx_event_init_conf(ngx_cycle_t *cycle, void *conf);
|
|
|
35
|
|
|
36
|
|
112
|
37 static ngx_uint_t ngx_timer_resolution;
|
|
|
38 sig_atomic_t ngx_event_timer_alarm;
|
|
|
39
|
|
44
|
40 static ngx_uint_t ngx_event_max_module;
|
|
0
|
41
|
|
44
|
42 ngx_uint_t ngx_event_flags;
|
|
|
43 ngx_event_actions_t ngx_event_actions;
|
|
0
|
44
|
|
|
45
|
|
110
|
46 ngx_atomic_t connection_counter = 1;
|
|
42
|
47 ngx_atomic_t *ngx_connection_counter = &connection_counter;
|
|
0
|
48
|
|
|
49
|
|
42
|
50 ngx_atomic_t *ngx_accept_mutex_ptr;
|
|
160
|
51 ngx_shmtx_t ngx_accept_mutex;
|
|
|
52 ngx_uint_t ngx_use_accept_mutex;
|
|
236
|
53 ngx_uint_t ngx_accept_events;
|
|
44
|
54 ngx_uint_t ngx_accept_mutex_held;
|
|
|
55 ngx_msec_t ngx_accept_mutex_delay;
|
|
|
56 ngx_int_t ngx_accept_disabled;
|
|
110
|
57 ngx_file_t ngx_accept_mutex_lock_file;
|
|
0
|
58
|
|
|
59
|
|
|
60 #if (NGX_STAT_STUB)
|
|
|
61
|
|
|
62 ngx_atomic_t ngx_stat_accepted0;
|
|
|
63 ngx_atomic_t *ngx_stat_accepted = &ngx_stat_accepted0;
|
|
44
|
64 ngx_atomic_t ngx_stat_handled0;
|
|
|
65 ngx_atomic_t *ngx_stat_handled = &ngx_stat_handled0;
|
|
0
|
66 ngx_atomic_t ngx_stat_requests0;
|
|
|
67 ngx_atomic_t *ngx_stat_requests = &ngx_stat_requests0;
|
|
|
68 ngx_atomic_t ngx_stat_active0;
|
|
|
69 ngx_atomic_t *ngx_stat_active = &ngx_stat_active0;
|
|
|
70 ngx_atomic_t ngx_stat_reading0;
|
|
|
71 ngx_atomic_t *ngx_stat_reading = &ngx_stat_reading0;
|
|
|
72 ngx_atomic_t ngx_stat_writing0;
|
|
44
|
73 ngx_atomic_t *ngx_stat_writing = &ngx_stat_writing0;
|
|
0
|
74
|
|
|
75 #endif
|
|
|
76
|
|
|
77
|
|
|
78
|
|
|
79 static ngx_command_t ngx_events_commands[] = {
|
|
|
80
|
|
|
81 { ngx_string("events"),
|
|
|
82 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
|
|
|
83 ngx_events_block,
|
|
|
84 0,
|
|
|
85 0,
|
|
|
86 NULL },
|
|
|
87
|
|
|
88 ngx_null_command
|
|
|
89 };
|
|
|
90
|
|
126
|
91
|
|
0
|
92 static ngx_core_module_t ngx_events_module_ctx = {
|
|
|
93 ngx_string("events"),
|
|
|
94 NULL,
|
|
|
95 NULL
|
|
126
|
96 };
|
|
0
|
97
|
|
|
98
|
|
|
99 ngx_module_t ngx_events_module = {
|
|
58
|
100 NGX_MODULE_V1,
|
|
0
|
101 &ngx_events_module_ctx, /* module context */
|
|
|
102 ngx_events_commands, /* module directives */
|
|
|
103 NGX_CORE_MODULE, /* module type */
|
|
90
|
104 NULL, /* init master */
|
|
0
|
105 NULL, /* init module */
|
|
90
|
106 NULL, /* init process */
|
|
|
107 NULL, /* init thread */
|
|
|
108 NULL, /* exit thread */
|
|
|
109 NULL, /* exit process */
|
|
|
110 NULL, /* exit master */
|
|
|
111 NGX_MODULE_V1_PADDING
|
|
0
|
112 };
|
|
|
113
|
|
|
114
|
|
|
115 static ngx_str_t event_core_name = ngx_string("event_core");
|
|
|
116
|
|
|
117
|
|
|
118 static ngx_command_t ngx_event_core_commands[] = {
|
|
|
119
|
|
92
|
120 { ngx_string("worker_connections"),
|
|
|
121 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
122 ngx_event_connections,
|
|
|
123 0,
|
|
|
124 0,
|
|
|
125 NULL },
|
|
|
126
|
|
0
|
127 { ngx_string("connections"),
|
|
|
128 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
129 ngx_event_connections,
|
|
|
130 0,
|
|
|
131 0,
|
|
|
132 NULL },
|
|
|
133
|
|
|
134 { ngx_string("use"),
|
|
|
135 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
136 ngx_event_use,
|
|
|
137 0,
|
|
|
138 0,
|
|
|
139 NULL },
|
|
|
140
|
|
|
141 { ngx_string("multi_accept"),
|
|
216
|
142 NGX_EVENT_CONF|NGX_CONF_FLAG,
|
|
0
|
143 ngx_conf_set_flag_slot,
|
|
|
144 0,
|
|
|
145 offsetof(ngx_event_conf_t, multi_accept),
|
|
|
146 NULL },
|
|
|
147
|
|
|
148 { ngx_string("accept_mutex"),
|
|
216
|
149 NGX_EVENT_CONF|NGX_CONF_FLAG,
|
|
0
|
150 ngx_conf_set_flag_slot,
|
|
|
151 0,
|
|
|
152 offsetof(ngx_event_conf_t, accept_mutex),
|
|
160
|
153 NULL },
|
|
0
|
154
|
|
|
155 { ngx_string("accept_mutex_delay"),
|
|
|
156 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
157 ngx_conf_set_msec_slot,
|
|
|
158 0,
|
|
|
159 offsetof(ngx_event_conf_t, accept_mutex_delay),
|
|
|
160 NULL },
|
|
|
161
|
|
|
162 { ngx_string("debug_connection"),
|
|
|
163 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
164 ngx_event_debug_connection,
|
|
|
165 0,
|
|
|
166 0,
|
|
|
167 NULL },
|
|
|
168
|
|
|
169 ngx_null_command
|
|
|
170 };
|
|
|
171
|
|
|
172
|
|
|
173 ngx_event_module_t ngx_event_core_module_ctx = {
|
|
|
174 &event_core_name,
|
|
|
175 ngx_event_create_conf, /* create configuration */
|
|
|
176 ngx_event_init_conf, /* init configuration */
|
|
|
177
|
|
|
178 { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
|
|
|
179 };
|
|
|
180
|
|
|
181
|
|
|
182 ngx_module_t ngx_event_core_module = {
|
|
58
|
183 NGX_MODULE_V1,
|
|
0
|
184 &ngx_event_core_module_ctx, /* module context */
|
|
|
185 ngx_event_core_commands, /* module directives */
|
|
|
186 NGX_EVENT_MODULE, /* module type */
|
|
90
|
187 NULL, /* init master */
|
|
0
|
188 ngx_event_module_init, /* init module */
|
|
90
|
189 ngx_event_process_init, /* init process */
|
|
|
190 NULL, /* init thread */
|
|
|
191 NULL, /* exit thread */
|
|
|
192 NULL, /* exit process */
|
|
|
193 NULL, /* exit master */
|
|
|
194 NGX_MODULE_V1_PADDING
|
|
0
|
195 };
|
|
|
196
|
|
|
197
|
|
112
|
198 void
|
|
|
199 ngx_process_events_and_timers(ngx_cycle_t *cycle)
|
|
|
200 {
|
|
|
201 ngx_uint_t flags;
|
|
116
|
202 ngx_msec_t timer, delta;
|
|
112
|
203
|
|
|
204 if (ngx_timer_resolution) {
|
|
|
205 timer = NGX_TIMER_INFINITE;
|
|
|
206 flags = 0;
|
|
|
207
|
|
|
208 } else {
|
|
|
209 timer = ngx_event_find_timer();
|
|
|
210 flags = NGX_UPDATE_TIME;
|
|
|
211
|
|
|
212 #if (NGX_THREADS)
|
|
|
213
|
|
|
214 if (timer == NGX_TIMER_INFINITE || timer > 500) {
|
|
|
215 timer = 500;
|
|
|
216 }
|
|
|
217
|
|
|
218 #endif
|
|
|
219 }
|
|
|
220
|
|
160
|
221 if (ngx_use_accept_mutex) {
|
|
112
|
222 if (ngx_accept_disabled > 0) {
|
|
|
223 ngx_accept_disabled--;
|
|
|
224
|
|
|
225 } else {
|
|
|
226 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
|
|
|
227 return;
|
|
|
228 }
|
|
|
229
|
|
|
230 if (ngx_accept_mutex_held) {
|
|
|
231 flags |= NGX_POST_EVENTS;
|
|
|
232
|
|
|
233 } else {
|
|
|
234 if (timer == NGX_TIMER_INFINITE
|
|
|
235 || timer > ngx_accept_mutex_delay)
|
|
|
236 {
|
|
|
237 timer = ngx_accept_mutex_delay;
|
|
|
238 }
|
|
|
239 }
|
|
|
240 }
|
|
|
241 }
|
|
|
242
|
|
116
|
243 delta = ngx_current_msec;
|
|
|
244
|
|
112
|
245 (void) ngx_process_events(cycle, timer, flags);
|
|
|
246
|
|
116
|
247 delta = ngx_current_msec - delta;
|
|
|
248
|
|
|
249 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
250 "timer delta: %M", delta);
|
|
|
251
|
|
112
|
252 if (ngx_posted_accept_events) {
|
|
|
253 ngx_event_process_posted(cycle, &ngx_posted_accept_events);
|
|
|
254 }
|
|
|
255
|
|
|
256 if (ngx_accept_mutex_held) {
|
|
160
|
257 ngx_shmtx_unlock(&ngx_accept_mutex);
|
|
112
|
258 }
|
|
|
259
|
|
122
|
260 if (delta) {
|
|
|
261 ngx_event_expire_timers();
|
|
|
262 }
|
|
|
263
|
|
112
|
264 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
265 "posted events %p", ngx_posted_events);
|
|
|
266
|
|
|
267 if (ngx_posted_events) {
|
|
|
268 if (ngx_threaded) {
|
|
|
269 ngx_wakeup_worker_thread(cycle);
|
|
|
270
|
|
|
271 } else {
|
|
|
272 ngx_event_process_posted(cycle, &ngx_posted_events);
|
|
|
273 }
|
|
|
274 }
|
|
|
275 }
|
|
|
276
|
|
|
277
|
|
58
|
278 ngx_int_t
|
|
324
|
279 ngx_handle_read_event(ngx_event_t *rev, ngx_uint_t flags)
|
|
58
|
280 {
|
|
|
281 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
126
|
282
|
|
58
|
283 /* kqueue, epoll */
|
|
|
284
|
|
|
285 if (!rev->active && !rev->ready) {
|
|
|
286 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_CLEAR_EVENT)
|
|
|
287 == NGX_ERROR)
|
|
|
288 {
|
|
|
289 return NGX_ERROR;
|
|
|
290 }
|
|
|
291 }
|
|
126
|
292
|
|
58
|
293 return NGX_OK;
|
|
|
294
|
|
|
295 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
296
|
|
|
297 /* select, poll, /dev/poll */
|
|
|
298
|
|
|
299 if (!rev->active && !rev->ready) {
|
|
|
300 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT)
|
|
|
301 == NGX_ERROR)
|
|
|
302 {
|
|
|
303 return NGX_ERROR;
|
|
|
304 }
|
|
|
305
|
|
|
306 return NGX_OK;
|
|
|
307 }
|
|
|
308
|
|
|
309 if (rev->active && (rev->ready || (flags & NGX_CLOSE_EVENT))) {
|
|
|
310 if (ngx_del_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT | flags)
|
|
|
311 == NGX_ERROR)
|
|
|
312 {
|
|
|
313 return NGX_ERROR;
|
|
|
314 }
|
|
|
315
|
|
|
316 return NGX_OK;
|
|
|
317 }
|
|
|
318
|
|
236
|
319 } else if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
58
|
320
|
|
|
321 /* event ports */
|
|
|
322
|
|
236
|
323 if (!rev->active && !rev->ready) {
|
|
|
324 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
58
|
325 return NGX_ERROR;
|
|
|
326 }
|
|
236
|
327
|
|
|
328 return NGX_OK;
|
|
58
|
329 }
|
|
126
|
330
|
|
236
|
331 if (rev->oneshot && !rev->ready) {
|
|
|
332 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
333 return NGX_ERROR;
|
|
|
334 }
|
|
|
335
|
|
|
336 return NGX_OK;
|
|
|
337 }
|
|
58
|
338 }
|
|
|
339
|
|
|
340 /* aio, iocp, rtsig */
|
|
|
341
|
|
|
342 return NGX_OK;
|
|
|
343 }
|
|
|
344
|
|
|
345
|
|
|
346 ngx_int_t
|
|
|
347 ngx_handle_write_event(ngx_event_t *wev, size_t lowat)
|
|
|
348 {
|
|
|
349 ngx_connection_t *c;
|
|
|
350
|
|
|
351 if (lowat) {
|
|
236
|
352 c = wev->data;
|
|
58
|
353
|
|
|
354 if (ngx_send_lowat(c, lowat) == NGX_ERROR) {
|
|
|
355 return NGX_ERROR;
|
|
|
356 }
|
|
|
357 }
|
|
|
358
|
|
|
359 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
|
360
|
|
|
361 /* kqueue, epoll */
|
|
|
362
|
|
|
363 if (!wev->active && !wev->ready) {
|
|
|
364 if (ngx_add_event(wev, NGX_WRITE_EVENT,
|
|
|
365 NGX_CLEAR_EVENT | (lowat ? NGX_LOWAT_EVENT : 0))
|
|
|
366 == NGX_ERROR)
|
|
|
367 {
|
|
|
368 return NGX_ERROR;
|
|
|
369 }
|
|
|
370 }
|
|
|
371
|
|
|
372 return NGX_OK;
|
|
|
373
|
|
|
374 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
375
|
|
|
376 /* select, poll, /dev/poll */
|
|
|
377
|
|
|
378 if (!wev->active && !wev->ready) {
|
|
|
379 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
|
|
|
380 == NGX_ERROR)
|
|
|
381 {
|
|
|
382 return NGX_ERROR;
|
|
|
383 }
|
|
|
384
|
|
|
385 return NGX_OK;
|
|
|
386 }
|
|
|
387
|
|
|
388 if (wev->active && wev->ready) {
|
|
|
389 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
|
|
|
390 == NGX_ERROR)
|
|
|
391 {
|
|
|
392 return NGX_ERROR;
|
|
|
393 }
|
|
|
394
|
|
|
395 return NGX_OK;
|
|
|
396 }
|
|
|
397
|
|
236
|
398 } else if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
58
|
399
|
|
|
400 /* event ports */
|
|
|
401
|
|
236
|
402 if (!wev->active && !wev->ready) {
|
|
|
403 if (ngx_add_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
58
|
404 return NGX_ERROR;
|
|
|
405 }
|
|
236
|
406
|
|
|
407 return NGX_OK;
|
|
58
|
408 }
|
|
126
|
409
|
|
236
|
410 if (wev->oneshot && wev->ready) {
|
|
|
411 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
412 return NGX_ERROR;
|
|
|
413 }
|
|
|
414
|
|
|
415 return NGX_OK;
|
|
|
416 }
|
|
58
|
417 }
|
|
|
418
|
|
|
419 /* aio, iocp, rtsig */
|
|
|
420
|
|
|
421 return NGX_OK;
|
|
|
422 }
|
|
|
423
|
|
|
424
|
|
|
425 static ngx_int_t
|
|
|
426 ngx_event_module_init(ngx_cycle_t *cycle)
|
|
0
|
427 {
|
|
92
|
428 void ***cf;
|
|
154
|
429 u_char *shared;
|
|
160
|
430 size_t size, cl;
|
|
356
|
431 ngx_shm_t shm;
|
|
112
|
432 ngx_core_conf_t *ccf;
|
|
356
|
433 ngx_event_conf_t *ecf;
|
|
22
|
434
|
|
|
435 cf = ngx_get_conf(cycle->conf_ctx, ngx_events_module);
|
|
|
436
|
|
|
437 if (cf == NULL) {
|
|
|
438 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
439 "no \"events\" section in configuration");
|
|
|
440 return NGX_ERROR;
|
|
|
441 }
|
|
|
442
|
|
|
443 ecf = (*cf)[ngx_event_core_module.ctx_index];
|
|
|
444
|
|
190
|
445 if (!ngx_test_config) {
|
|
|
446 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
447 "using the \"%s\" event method", ecf->name);
|
|
|
448 }
|
|
22
|
449
|
|
112
|
450 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
451
|
|
112
|
452 ngx_timer_resolution = ccf->timer_resolution;
|
|
|
453
|
|
|
454 #if !(NGX_WIN32)
|
|
356
|
455 {
|
|
|
456 ngx_int_t limit;
|
|
|
457 struct rlimit rlmt;
|
|
0
|
458
|
|
92
|
459 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
460 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
461 "getrlimit(RLIMIT_NOFILE) failed, ignored");
|
|
|
462
|
|
|
463 } else {
|
|
|
464 if (ecf->connections > (ngx_uint_t) rlmt.rlim_cur
|
|
|
465 && (ccf->rlimit_nofile == NGX_CONF_UNSET
|
|
|
466 || ecf->connections > (ngx_uint_t) ccf->rlimit_nofile))
|
|
|
467 {
|
|
|
468 limit = (ccf->rlimit_nofile == NGX_CONF_UNSET) ?
|
|
|
469 (ngx_int_t) rlmt.rlim_cur : ccf->rlimit_nofile;
|
|
|
470
|
|
|
471 ngx_log_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
472 "%ui worker_connections are more than "
|
|
|
473 "open file resource limit: %i",
|
|
|
474 ecf->connections, limit);
|
|
|
475 }
|
|
|
476 }
|
|
356
|
477 }
|
|
154
|
478 #endif /* !(NGX_WIN32) */
|
|
|
479
|
|
92
|
480
|
|
160
|
481 if (ccf->master == 0) {
|
|
0
|
482 return NGX_OK;
|
|
|
483 }
|
|
|
484
|
|
160
|
485 if (ngx_accept_mutex_ptr) {
|
|
|
486 return NGX_OK;
|
|
|
487 }
|
|
|
488
|
|
|
489
|
|
|
490 /* cl should be equal or bigger than cache line size */
|
|
|
491
|
|
|
492 cl = 128;
|
|
|
493
|
|
|
494 size = cl /* ngx_accept_mutex */
|
|
|
495 + cl; /* ngx_connection_counter */
|
|
0
|
496
|
|
|
497 #if (NGX_STAT_STUB)
|
|
|
498
|
|
160
|
499 size += cl /* ngx_stat_accepted */
|
|
|
500 + cl /* ngx_stat_handled */
|
|
|
501 + cl /* ngx_stat_requests */
|
|
|
502 + cl /* ngx_stat_active */
|
|
|
503 + cl /* ngx_stat_reading */
|
|
|
504 + cl; /* ngx_stat_writing */
|
|
0
|
505
|
|
|
506 #endif
|
|
|
507
|
|
154
|
508 shm.size = size;
|
|
|
509 shm.log = cycle->log;
|
|
|
510
|
|
|
511 if (ngx_shm_alloc(&shm) != NGX_OK) {
|
|
0
|
512 return NGX_ERROR;
|
|
|
513 }
|
|
|
514
|
|
154
|
515 shared = shm.addr;
|
|
|
516
|
|
0
|
517 ngx_accept_mutex_ptr = (ngx_atomic_t *) shared;
|
|
160
|
518
|
|
258
|
519 if (ngx_shmtx_create(&ngx_accept_mutex, shared, cycle->lock_file.data)
|
|
160
|
520 != NGX_OK)
|
|
|
521 {
|
|
|
522 return NGX_ERROR;
|
|
|
523 }
|
|
|
524
|
|
|
525 ngx_connection_counter = (ngx_atomic_t *) (shared + 1 * cl);
|
|
0
|
526
|
|
|
527 #if (NGX_STAT_STUB)
|
|
|
528
|
|
160
|
529 ngx_stat_accepted = (ngx_atomic_t *) (shared + 2 * cl);
|
|
|
530 ngx_stat_handled = (ngx_atomic_t *) (shared + 3 * cl);
|
|
|
531 ngx_stat_requests = (ngx_atomic_t *) (shared + 4 * cl);
|
|
|
532 ngx_stat_active = (ngx_atomic_t *) (shared + 5 * cl);
|
|
|
533 ngx_stat_reading = (ngx_atomic_t *) (shared + 6 * cl);
|
|
|
534 ngx_stat_writing = (ngx_atomic_t *) (shared + 7 * cl);
|
|
0
|
535
|
|
|
536 #endif
|
|
|
537
|
|
112
|
538 *ngx_connection_counter = 1;
|
|
|
539
|
|
0
|
540 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
541 "counter: %p, %d",
|
|
0
|
542 ngx_connection_counter, *ngx_connection_counter);
|
|
|
543
|
|
|
544 return NGX_OK;
|
|
|
545 }
|
|
|
546
|
|
|
547
|
|
112
|
548 #if !(NGX_WIN32)
|
|
|
549
|
|
|
550 void
|
|
|
551 ngx_timer_signal_handler(int signo)
|
|
|
552 {
|
|
|
553 ngx_event_timer_alarm = 1;
|
|
|
554
|
|
|
555 ngx_time_update(0, 0);
|
|
|
556
|
|
|
557 #if 1
|
|
|
558 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0, "timer signal");
|
|
|
559 #endif
|
|
|
560 }
|
|
|
561
|
|
|
562 #endif
|
|
|
563
|
|
|
564
|
|
58
|
565 static ngx_int_t
|
|
|
566 ngx_event_process_init(ngx_cycle_t *cycle)
|
|
0
|
567 {
|
|
|
568 ngx_uint_t m, i;
|
|
|
569 ngx_event_t *rev, *wev;
|
|
92
|
570 ngx_listening_t *ls;
|
|
|
571 ngx_connection_t *c, *next, *old;
|
|
0
|
572 ngx_core_conf_t *ccf;
|
|
|
573 ngx_event_conf_t *ecf;
|
|
|
574 ngx_event_module_t *module;
|
|
|
575
|
|
|
576 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
577 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module);
|
|
|
578
|
|
258
|
579 if (ccf->master && ccf->worker_processes > 1 && ecf->accept_mutex) {
|
|
160
|
580 ngx_use_accept_mutex = 1;
|
|
0
|
581 ngx_accept_mutex_held = 0;
|
|
|
582 ngx_accept_mutex_delay = ecf->accept_mutex_delay;
|
|
160
|
583
|
|
|
584 } else {
|
|
|
585 ngx_use_accept_mutex = 0;
|
|
0
|
586 }
|
|
|
587
|
|
|
588 #if (NGX_THREADS)
|
|
50
|
589 ngx_posted_events_mutex = ngx_mutex_init(cycle->log, 0);
|
|
|
590 if (ngx_posted_events_mutex == NULL) {
|
|
0
|
591 return NGX_ERROR;
|
|
|
592 }
|
|
|
593 #endif
|
|
|
594
|
|
|
595 if (ngx_event_timer_init(cycle->log) == NGX_ERROR) {
|
|
|
596 return NGX_ERROR;
|
|
|
597 }
|
|
|
598
|
|
|
599 for (m = 0; ngx_modules[m]; m++) {
|
|
|
600 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
601 continue;
|
|
|
602 }
|
|
|
603
|
|
384
|
604 if (ngx_modules[m]->ctx_index != ecf->use) {
|
|
|
605 continue;
|
|
0
|
606 }
|
|
384
|
607
|
|
|
608 module = ngx_modules[m]->ctx;
|
|
|
609
|
|
|
610 if (module->actions.init(cycle, ngx_timer_resolution) != NGX_OK) {
|
|
|
611 /* fatal */
|
|
|
612 exit(2);
|
|
|
613 }
|
|
|
614
|
|
|
615 break;
|
|
0
|
616 }
|
|
|
617
|
|
92
|
618 #if !(NGX_WIN32)
|
|
|
619
|
|
112
|
620 if (ngx_timer_resolution && !(ngx_event_flags & NGX_USE_TIMER_EVENT)) {
|
|
356
|
621 struct sigaction sa;
|
|
|
622 struct itimerval itv;
|
|
112
|
623
|
|
|
624 ngx_memzero(&sa, sizeof(struct sigaction));
|
|
|
625 sa.sa_handler = ngx_timer_signal_handler;
|
|
|
626 sigemptyset(&sa.sa_mask);
|
|
|
627
|
|
|
628 if (sigaction(SIGALRM, &sa, NULL) == -1) {
|
|
|
629 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
630 "sigaction(SIGALRM) failed");
|
|
|
631 return NGX_ERROR;
|
|
|
632 }
|
|
|
633
|
|
|
634 itv.it_interval.tv_sec = ngx_timer_resolution / 1000;
|
|
|
635 itv.it_interval.tv_usec = (ngx_timer_resolution % 1000) * 1000;
|
|
|
636 itv.it_value.tv_sec = ngx_timer_resolution / 1000;
|
|
|
637 itv.it_value.tv_usec = (ngx_timer_resolution % 1000 ) * 1000;
|
|
|
638
|
|
|
639 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
|
|
|
640 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
641 "setitimer() failed");
|
|
126
|
642 }
|
|
112
|
643 }
|
|
|
644
|
|
92
|
645 if (ngx_event_flags & NGX_USE_FD_EVENT) {
|
|
356
|
646 struct rlimit rlmt;
|
|
92
|
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
|
|
384
|
665 cycle->connections =
|
|
|
666 ngx_alloc(sizeof(ngx_connection_t) * cycle->connection_n, cycle->log);
|
|
110
|
667 if (cycle->connections == NULL) {
|
|
0
|
668 return NGX_ERROR;
|
|
|
669 }
|
|
|
670
|
|
110
|
671 c = cycle->connections;
|
|
0
|
672
|
|
384
|
673 cycle->read_events = ngx_alloc(sizeof(ngx_event_t) * cycle->connection_n,
|
|
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
|
|
384
|
689 cycle->write_events = ngx_alloc(sizeof(ngx_event_t) * cycle->connection_n,
|
|
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;
|
|
384
|
723 cycle->free_connection_n = cycle->connection_n;
|
|
92
|
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
|
|
110
|
741 rev = c->read;
|
|
0
|
742
|
|
|
743 rev->log = c->log;
|
|
|
744 rev->accept = 1;
|
|
|
745
|
|
18
|
746 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
92
|
747 rev->deferred_accept = ls[i].deferred_accept;
|
|
0
|
748 #endif
|
|
|
749
|
|
|
750 if (!(ngx_event_flags & NGX_USE_IOCP_EVENT)) {
|
|
92
|
751 if (ls[i].previous) {
|
|
0
|
752
|
|
|
753 /*
|
|
|
754 * delete the old accept events that were bound to
|
|
|
755 * the old cycle read events array
|
|
|
756 */
|
|
|
757
|
|
92
|
758 old = ls[i].previous->connection;
|
|
|
759
|
|
|
760 if (ngx_del_event(old->read, NGX_READ_EVENT, NGX_CLOSE_EVENT)
|
|
|
761 == NGX_ERROR)
|
|
0
|
762 {
|
|
|
763 return NGX_ERROR;
|
|
|
764 }
|
|
|
765
|
|
92
|
766 old->fd = (ngx_socket_t) -1;
|
|
0
|
767 }
|
|
|
768 }
|
|
|
769
|
|
10
|
770 #if (NGX_WIN32)
|
|
0
|
771
|
|
|
772 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
|
|
356
|
773 ngx_iocp_conf_t *iocpcf;
|
|
|
774
|
|
58
|
775 rev->handler = ngx_event_acceptex;
|
|
0
|
776
|
|
|
777 if (ngx_add_event(rev, 0, NGX_IOCP_ACCEPT) == NGX_ERROR) {
|
|
|
778 return NGX_ERROR;
|
|
|
779 }
|
|
|
780
|
|
92
|
781 ls[i].log.handler = ngx_acceptex_log_error;
|
|
|
782
|
|
0
|
783 iocpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_iocp_module);
|
|
92
|
784 if (ngx_event_post_acceptex(&ls[i], iocpcf->post_acceptex)
|
|
|
785 == NGX_ERROR)
|
|
0
|
786 {
|
|
|
787 return NGX_ERROR;
|
|
|
788 }
|
|
|
789
|
|
|
790 } else {
|
|
58
|
791 rev->handler = ngx_event_accept;
|
|
10
|
792
|
|
0
|
793 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
794 return NGX_ERROR;
|
|
|
795 }
|
|
|
796 }
|
|
|
797
|
|
|
798 #else
|
|
|
799
|
|
58
|
800 rev->handler = ngx_event_accept;
|
|
0
|
801
|
|
160
|
802 if (ngx_use_accept_mutex) {
|
|
0
|
803 continue;
|
|
|
804 }
|
|
|
805
|
|
|
806 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) {
|
|
|
807 if (ngx_add_conn(c) == NGX_ERROR) {
|
|
|
808 return NGX_ERROR;
|
|
|
809 }
|
|
|
810
|
|
|
811 } else {
|
|
|
812 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
813 return NGX_ERROR;
|
|
|
814 }
|
|
|
815 }
|
|
|
816
|
|
|
817 #endif
|
|
92
|
818
|
|
0
|
819 }
|
|
|
820
|
|
|
821 return NGX_OK;
|
|
|
822 }
|
|
|
823
|
|
|
824
|
|
58
|
825 ngx_int_t
|
|
|
826 ngx_send_lowat(ngx_connection_t *c, size_t lowat)
|
|
2
|
827 {
|
|
|
828 int sndlowat;
|
|
|
829
|
|
4
|
830 #if (NGX_HAVE_LOWAT_EVENT)
|
|
2
|
831
|
|
4
|
832 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
2
|
833 c->write->available = lowat;
|
|
|
834 return NGX_OK;
|
|
|
835 }
|
|
|
836
|
|
|
837 #endif
|
|
126
|
838
|
|
2
|
839 if (lowat == 0 || c->sndlowat) {
|
|
|
840 return NGX_OK;
|
|
|
841 }
|
|
|
842
|
|
|
843 sndlowat = (int) lowat;
|
|
|
844
|
|
|
845 if (setsockopt(c->fd, SOL_SOCKET, SO_SNDLOWAT,
|
|
282
|
846 (const void *) &sndlowat, sizeof(int))
|
|
|
847 == -1)
|
|
2
|
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) {
|
|
378
|
946 return "is duplicate";
|
|
0
|
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) {
|
|
378
|
981 return "is duplicate";
|
|
0
|
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
|
|
326
|
1039 ngx_int_t rc;
|
|
|
1040 ngx_str_t *value;
|
|
214
|
1041 ngx_event_debug_t *dc;
|
|
|
1042 struct hostent *h;
|
|
454
|
1043 ngx_cidr_t cidr;
|
|
0
|
1044
|
|
|
1045 value = cf->args->elts;
|
|
|
1046
|
|
214
|
1047 dc = ngx_array_push(&ecf->debug_connection);
|
|
|
1048 if (dc == NULL) {
|
|
0
|
1049 return NGX_CONF_ERROR;
|
|
|
1050 }
|
|
|
1051
|
|
454
|
1052 rc = ngx_ptocidr(&value[1], &cidr);
|
|
326
|
1053
|
|
|
1054 if (rc == NGX_DONE) {
|
|
|
1055 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1056 "low address bits of %V are meaningless", &value[1]);
|
|
|
1057 rc = NGX_OK;
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 if (rc == NGX_OK) {
|
|
454
|
1061
|
|
|
1062 /* AF_INET only */
|
|
|
1063
|
|
|
1064 if (cidr.family != AF_INET) {
|
|
|
1065 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1066 "\"debug_connection\" supports IPv4 only");
|
|
|
1067 return NGX_CONF_ERROR;
|
|
|
1068 }
|
|
|
1069
|
|
|
1070 dc->mask = cidr.u.in.mask;
|
|
|
1071 dc->addr = cidr.u.in.addr;
|
|
|
1072
|
|
326
|
1073 return NGX_CONF_OK;
|
|
0
|
1074 }
|
|
|
1075
|
|
|
1076 h = gethostbyname((char *) value[1].data);
|
|
|
1077
|
|
|
1078 if (h == NULL || h->h_addr_list[0] == NULL) {
|
|
|
1079 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1080 "host \"%s\" not found", value[1].data);
|
|
0
|
1081 return NGX_CONF_ERROR;
|
|
|
1082 }
|
|
|
1083
|
|
214
|
1084 dc->mask = 0xffffffff;
|
|
|
1085 dc->addr = *(in_addr_t *)(h->h_addr_list[0]);
|
|
0
|
1086
|
|
|
1087 #else
|
|
|
1088
|
|
|
1089 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1090 "\"debug_connection\" is ignored, you need to rebuild "
|
|
|
1091 "nginx using --with-debug option to enable it");
|
|
|
1092
|
|
|
1093 #endif
|
|
|
1094
|
|
326
|
1095 return NGX_CONF_OK;
|
|
0
|
1096 }
|
|
|
1097
|
|
|
1098
|
|
58
|
1099 static void *
|
|
|
1100 ngx_event_create_conf(ngx_cycle_t *cycle)
|
|
0
|
1101 {
|
|
|
1102 ngx_event_conf_t *ecf;
|
|
|
1103
|
|
50
|
1104 ecf = ngx_palloc(cycle->pool, sizeof(ngx_event_conf_t));
|
|
|
1105 if (ecf == NULL) {
|
|
|
1106 return NGX_CONF_ERROR;
|
|
|
1107 }
|
|
0
|
1108
|
|
|
1109 ecf->connections = NGX_CONF_UNSET_UINT;
|
|
|
1110 ecf->use = NGX_CONF_UNSET_UINT;
|
|
|
1111 ecf->multi_accept = NGX_CONF_UNSET;
|
|
|
1112 ecf->accept_mutex = NGX_CONF_UNSET;
|
|
|
1113 ecf->accept_mutex_delay = NGX_CONF_UNSET_MSEC;
|
|
|
1114 ecf->name = (void *) NGX_CONF_UNSET;
|
|
|
1115
|
|
|
1116 #if (NGX_DEBUG)
|
|
50
|
1117
|
|
|
1118 if (ngx_array_init(&ecf->debug_connection, cycle->pool, 4,
|
|
214
|
1119 sizeof(ngx_event_debug_t)) == NGX_ERROR)
|
|
50
|
1120 {
|
|
|
1121 return NGX_CONF_ERROR;
|
|
|
1122 }
|
|
|
1123
|
|
0
|
1124 #endif
|
|
|
1125
|
|
|
1126 return ecf;
|
|
|
1127 }
|
|
|
1128
|
|
|
1129
|
|
58
|
1130 static char *
|
|
|
1131 ngx_event_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
1132 {
|
|
|
1133 ngx_event_conf_t *ecf = conf;
|
|
16
|
1134
|
|
50
|
1135 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
|
1136 int fd;
|
|
|
1137 #endif
|
|
|
1138 #if (NGX_HAVE_RTSIG)
|
|
|
1139 ngx_uint_t rtsig;
|
|
122
|
1140 ngx_core_conf_t *ccf;
|
|
50
|
1141 #endif
|
|
384
|
1142 ngx_int_t i;
|
|
16
|
1143 ngx_module_t *module;
|
|
|
1144 ngx_event_module_t *event_module;
|
|
|
1145
|
|
|
1146 module = NULL;
|
|
|
1147
|
|
18
|
1148 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
16
|
1149
|
|
|
1150 fd = epoll_create(100);
|
|
|
1151
|
|
|
1152 if (fd != -1) {
|
|
|
1153 close(fd);
|
|
|
1154 module = &ngx_epoll_module;
|
|
|
1155
|
|
|
1156 } else if (ngx_errno != NGX_ENOSYS) {
|
|
|
1157 module = &ngx_epoll_module;
|
|
|
1158 }
|
|
|
1159
|
|
|
1160 #endif
|
|
|
1161
|
|
18
|
1162 #if (NGX_HAVE_RTSIG)
|
|
16
|
1163
|
|
|
1164 if (module == NULL) {
|
|
|
1165 module = &ngx_rtsig_module;
|
|
|
1166 rtsig = 1;
|
|
50
|
1167
|
|
|
1168 } else {
|
|
|
1169 rtsig = 0;
|
|
16
|
1170 }
|
|
|
1171
|
|
|
1172 #endif
|
|
|
1173
|
|
18
|
1174 #if (NGX_HAVE_DEVPOLL)
|
|
16
|
1175
|
|
|
1176 module = &ngx_devpoll_module;
|
|
|
1177
|
|
0
|
1178 #endif
|
|
|
1179
|
|
18
|
1180 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1181
|
|
16
|
1182 module = &ngx_kqueue_module;
|
|
0
|
1183
|
|
16
|
1184 #endif
|
|
0
|
1185
|
|
18
|
1186 #if (NGX_HAVE_SELECT)
|
|
0
|
1187
|
|
16
|
1188 if (module == NULL) {
|
|
|
1189 module = &ngx_select_module;
|
|
|
1190 }
|
|
|
1191
|
|
0
|
1192 #endif
|
|
|
1193
|
|
16
|
1194 if (module == NULL) {
|
|
|
1195 for (i = 0; ngx_modules[i]; i++) {
|
|
384
|
1196
|
|
|
1197 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
|
1198 continue;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 event_module = ngx_modules[i]->ctx;
|
|
0
|
1202
|
|
384
|
1203 if (ngx_strcmp(event_module->name->data, event_core_name.data) == 0)
|
|
|
1204 {
|
|
|
1205 continue;
|
|
|
1206 }
|
|
0
|
1207
|
|
384
|
1208 module = ngx_modules[i];
|
|
|
1209 break;
|
|
0
|
1210 }
|
|
|
1211 }
|
|
|
1212
|
|
16
|
1213 if (module == NULL) {
|
|
0
|
1214 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
|
|
|
1215 return NGX_CONF_ERROR;
|
|
|
1216 }
|
|
|
1217
|
|
384
|
1218 ngx_conf_init_uint_value(ecf->connections, DEFAULT_CONNECTIONS);
|
|
16
|
1219 cycle->connection_n = ecf->connections;
|
|
0
|
1220
|
|
212
|
1221 ngx_conf_init_uint_value(ecf->use, module->ctx_index);
|
|
0
|
1222
|
|
16
|
1223 event_module = module->ctx;
|
|
|
1224 ngx_conf_init_ptr_value(ecf->name, event_module->name->data);
|
|
0
|
1225
|
|
|
1226 ngx_conf_init_value(ecf->multi_accept, 0);
|
|
|
1227 ngx_conf_init_value(ecf->accept_mutex, 1);
|
|
|
1228 ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);
|
|
|
1229
|
|
16
|
1230
|
|
50
|
1231 #if (NGX_HAVE_RTSIG)
|
|
|
1232
|
|
|
1233 if (!rtsig) {
|
|
|
1234 return NGX_CONF_OK;
|
|
|
1235 }
|
|
|
1236
|
|
|
1237 if (ecf->accept_mutex) {
|
|
16
|
1238 return NGX_CONF_OK;
|
|
0
|
1239 }
|
|
16
|
1240
|
|
|
1241 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
1242
|
|
16
|
1243 if (ccf->worker_processes == 0) {
|
|
|
1244 return NGX_CONF_OK;
|
|
|
1245 }
|
|
|
1246
|
|
|
1247 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
1248 "the \"rtsig\" method requires \"accept_mutex\" to be on");
|
|
|
1249
|
|
|
1250 return NGX_CONF_ERROR;
|
|
122
|
1251
|
|
|
1252 #else
|
|
|
1253
|
|
|
1254 return NGX_CONF_OK;
|
|
|
1255
|
|
|
1256 #endif
|
|
0
|
1257 }
|
