|
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
|
|
18
|
12 #if (NGX_TEST_BUILD_DEVPOLL)
|
|
0
|
13
|
|
|
14 /* Solaris declarations */
|
|
|
15
|
|
|
16 #define POLLREMOVE 0x0800
|
|
|
17 #define DP_POLL 0xD001
|
|
|
18
|
|
|
19 struct dvpoll {
|
|
|
20 struct pollfd *dp_fds;
|
|
|
21 int dp_nfds;
|
|
|
22 int dp_timeout;
|
|
|
23 };
|
|
|
24
|
|
|
25 #endif
|
|
|
26
|
|
|
27
|
|
|
28 typedef struct {
|
|
|
29 u_int changes;
|
|
|
30 u_int events;
|
|
|
31 } ngx_devpoll_conf_t;
|
|
|
32
|
|
|
33
|
|
48
|
34 static ngx_int_t ngx_devpoll_init(ngx_cycle_t *cycle);
|
|
0
|
35 static void ngx_devpoll_done(ngx_cycle_t *cycle);
|
|
48
|
36 static ngx_int_t ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags);
|
|
|
37 static ngx_int_t ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags);
|
|
|
38 static ngx_int_t ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags);
|
|
|
39 static ngx_int_t ngx_devpoll_process_events(ngx_cycle_t *cycle);
|
|
0
|
40
|
|
|
41 static void *ngx_devpoll_create_conf(ngx_cycle_t *cycle);
|
|
|
42 static char *ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf);
|
|
|
43
|
|
|
44 static int dp = -1;
|
|
|
45 static struct pollfd *change_list, *event_list;
|
|
|
46 static u_int nchanges, max_changes, nevents;
|
|
|
47
|
|
|
48 static ngx_event_t **change_index;
|
|
|
49
|
|
|
50
|
|
|
51 static ngx_str_t devpoll_name = ngx_string("/dev/poll");
|
|
|
52
|
|
|
53 static ngx_command_t ngx_devpoll_commands[] = {
|
|
|
54
|
|
48
|
55 { ngx_string("devpoll_changes"),
|
|
|
56 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
57 ngx_conf_set_num_slot,
|
|
|
58 0,
|
|
|
59 offsetof(ngx_devpoll_conf_t, changes),
|
|
|
60 NULL },
|
|
0
|
61
|
|
48
|
62 { ngx_string("devpoll_events"),
|
|
|
63 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
64 ngx_conf_set_num_slot,
|
|
|
65 0,
|
|
|
66 offsetof(ngx_devpoll_conf_t, events),
|
|
|
67 NULL },
|
|
0
|
68
|
|
48
|
69 ngx_null_command
|
|
0
|
70 };
|
|
|
71
|
|
|
72
|
|
|
73 ngx_event_module_t ngx_devpoll_module_ctx = {
|
|
|
74 &devpoll_name,
|
|
|
75 ngx_devpoll_create_conf, /* create configuration */
|
|
|
76 ngx_devpoll_init_conf, /* init configuration */
|
|
|
77
|
|
|
78 {
|
|
|
79 ngx_devpoll_add_event, /* add an event */
|
|
|
80 ngx_devpoll_del_event, /* delete an event */
|
|
|
81 ngx_devpoll_add_event, /* enable an event */
|
|
|
82 ngx_devpoll_del_event, /* disable an event */
|
|
|
83 NULL, /* add an connection */
|
|
|
84 NULL, /* delete an connection */
|
|
|
85 NULL, /* process the changes */
|
|
|
86 ngx_devpoll_process_events, /* process the events */
|
|
|
87 ngx_devpoll_init, /* init the events */
|
|
|
88 ngx_devpoll_done, /* done the events */
|
|
|
89 }
|
|
|
90
|
|
|
91 };
|
|
|
92
|
|
|
93 ngx_module_t ngx_devpoll_module = {
|
|
|
94 NGX_MODULE,
|
|
|
95 &ngx_devpoll_module_ctx, /* module context */
|
|
|
96 ngx_devpoll_commands, /* module directives */
|
|
|
97 NGX_EVENT_MODULE, /* module type */
|
|
|
98 NULL, /* init module */
|
|
|
99 NULL /* init process */
|
|
|
100 };
|
|
|
101
|
|
|
102
|
|
48
|
103 static ngx_int_t
|
|
|
104 ngx_devpoll_init(ngx_cycle_t *cycle)
|
|
0
|
105 {
|
|
|
106 size_t n;
|
|
|
107 ngx_devpoll_conf_t *dpcf;
|
|
|
108
|
|
|
109 dpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_devpoll_module);
|
|
|
110
|
|
|
111 if (dp == -1) {
|
|
|
112 dp = open("/dev/poll", O_RDWR);
|
|
|
113
|
|
|
114 if (dp == -1) {
|
|
|
115 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
116 "open(/dev/poll) failed");
|
|
|
117 return NGX_ERROR;
|
|
|
118 }
|
|
|
119 }
|
|
|
120
|
|
|
121 if (max_changes < dpcf->changes) {
|
|
|
122 if (nchanges) {
|
|
|
123 n = nchanges * sizeof(struct pollfd);
|
|
|
124 if (write(dp, change_list, n) != (ssize_t) n) {
|
|
|
125 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
126 "write(/dev/poll) failed");
|
|
|
127 return NGX_ERROR;
|
|
|
128 }
|
|
|
129
|
|
|
130 nchanges = 0;
|
|
|
131 }
|
|
|
132
|
|
|
133 if (change_list) {
|
|
|
134 ngx_free(change_list);
|
|
|
135 }
|
|
|
136
|
|
50
|
137 change_list = ngx_alloc(sizeof(struct pollfd) * dpcf->changes,
|
|
|
138 cycle->log);
|
|
|
139 if (change_list == NULL) {
|
|
|
140 return NGX_ERROR;
|
|
|
141 }
|
|
0
|
142
|
|
|
143 if (change_index) {
|
|
|
144 ngx_free(change_index);
|
|
|
145 }
|
|
|
146
|
|
50
|
147 change_index = ngx_alloc(sizeof(ngx_event_t *) * dpcf->changes,
|
|
|
148 cycle->log);
|
|
|
149 if (change_index == NULL) {
|
|
|
150 return NGX_ERROR;
|
|
|
151 }
|
|
0
|
152 }
|
|
|
153
|
|
|
154 max_changes = dpcf->changes;
|
|
|
155
|
|
|
156 if (nevents < dpcf->events) {
|
|
|
157 if (event_list) {
|
|
|
158 ngx_free(event_list);
|
|
|
159 }
|
|
|
160
|
|
50
|
161 event_list = ngx_alloc(sizeof(struct pollfd) * dpcf->events,
|
|
|
162 cycle->log);
|
|
|
163 if (event_list == NULL) {
|
|
|
164 return NGX_ERROR;
|
|
|
165 }
|
|
0
|
166 }
|
|
|
167
|
|
|
168 nevents = dpcf->events;
|
|
|
169
|
|
|
170 ngx_io = ngx_os_io;
|
|
|
171
|
|
|
172 ngx_event_actions = ngx_devpoll_module_ctx.actions;
|
|
|
173
|
|
|
174 ngx_event_flags = NGX_USE_LEVEL_EVENT;
|
|
|
175
|
|
|
176 return NGX_OK;
|
|
|
177 }
|
|
|
178
|
|
|
179
|
|
48
|
180 static void
|
|
|
181 ngx_devpoll_done(ngx_cycle_t *cycle)
|
|
0
|
182 {
|
|
|
183 if (close(dp) == -1) {
|
|
|
184 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
185 "close(/dev/poll) failed");
|
|
|
186 }
|
|
|
187
|
|
|
188 dp = -1;
|
|
|
189
|
|
|
190 ngx_free(change_list);
|
|
|
191 ngx_free(event_list);
|
|
|
192 ngx_free(change_index);
|
|
|
193
|
|
|
194 change_list = NULL;
|
|
|
195 event_list = NULL;
|
|
|
196 change_index = NULL;
|
|
|
197 max_changes = 0;
|
|
|
198 nchanges = 0;
|
|
|
199 nevents = 0;
|
|
|
200 }
|
|
|
201
|
|
|
202
|
|
48
|
203 static ngx_int_t
|
|
|
204 ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags)
|
|
0
|
205 {
|
|
|
206 #if (NGX_DEBUG)
|
|
|
207 ngx_connection_t *c;
|
|
|
208 #endif
|
|
|
209
|
|
|
210 #if (NGX_READ_EVENT != POLLIN)
|
|
2
|
211 event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT;
|
|
0
|
212 #endif
|
|
|
213
|
|
|
214 #if (NGX_DEBUG)
|
|
|
215 c = ev->data;
|
|
|
216 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
10
|
217 "devpoll add event: fd:%d ev:%04Xd", c->fd, event);
|
|
0
|
218 #endif
|
|
|
219
|
|
|
220 ev->active = 1;
|
|
2
|
221
|
|
0
|
222 return ngx_devpoll_set_event(ev, event, 0);
|
|
|
223 }
|
|
|
224
|
|
|
225
|
|
48
|
226 static ngx_int_t
|
|
|
227 ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags)
|
|
0
|
228 {
|
|
|
229 ngx_event_t *e;
|
|
|
230 ngx_connection_t *c;
|
|
|
231
|
|
|
232 c = ev->data;
|
|
|
233
|
|
2
|
234 #if (NGX_READ_EVENT != POLLIN)
|
|
|
235 event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT;
|
|
|
236 #endif
|
|
|
237
|
|
0
|
238 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
10
|
239 "devpoll del event: fd:%d ev:%04Xd", c->fd, event);
|
|
0
|
240
|
|
|
241 if (ngx_devpoll_set_event(ev, POLLREMOVE, flags) == NGX_ERROR) {
|
|
|
242 return NGX_ERROR;
|
|
|
243 }
|
|
|
244
|
|
|
245 ev->active = 0;
|
|
|
246
|
|
|
247 if (flags & NGX_CLOSE_EVENT) {
|
|
|
248 return NGX_OK;
|
|
|
249 }
|
|
|
250
|
|
2
|
251 /* restore the paired event if it exists */
|
|
0
|
252
|
|
2
|
253 if (event == POLLIN) {
|
|
0
|
254 e = c->write;
|
|
|
255 event = POLLOUT;
|
|
|
256
|
|
|
257 } else {
|
|
|
258 e = c->read;
|
|
|
259 event = POLLIN;
|
|
|
260 }
|
|
|
261
|
|
2
|
262 if (e && e->active) {
|
|
0
|
263 return ngx_devpoll_set_event(e, event, 0);
|
|
|
264 }
|
|
|
265
|
|
|
266 return NGX_OK;
|
|
|
267 }
|
|
|
268
|
|
|
269
|
|
48
|
270 static ngx_int_t
|
|
|
271 ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags)
|
|
0
|
272 {
|
|
|
273 size_t n;
|
|
|
274 ngx_connection_t *c;
|
|
|
275
|
|
|
276 c = ev->data;
|
|
|
277
|
|
|
278 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
10
|
279 "devpoll fd:%d ev:%04Xd fl:%04Xd", c->fd, event, flags);
|
|
0
|
280
|
|
|
281 if (nchanges >= max_changes) {
|
|
|
282 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
|
283 "/dev/pool change list is filled up");
|
|
|
284
|
|
|
285 n = nchanges * sizeof(struct pollfd);
|
|
|
286 if (write(dp, change_list, n) != (ssize_t) n) {
|
|
|
287 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
288 "write(/dev/poll) failed");
|
|
|
289 return NGX_ERROR;
|
|
|
290 }
|
|
|
291
|
|
|
292 nchanges = 0;
|
|
|
293 }
|
|
|
294
|
|
|
295 change_list[nchanges].fd = c->fd;
|
|
|
296 change_list[nchanges].events = event;
|
|
|
297 change_list[nchanges].revents = 0;
|
|
|
298
|
|
|
299 change_index[nchanges] = ev;
|
|
|
300 ev->index = nchanges;
|
|
|
301
|
|
|
302 nchanges++;
|
|
|
303
|
|
|
304 if (flags & NGX_CLOSE_EVENT) {
|
|
|
305 n = nchanges * sizeof(struct pollfd);
|
|
|
306 if (write(dp, change_list, n) != (ssize_t) n) {
|
|
|
307 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
308 "write(/dev/poll) failed");
|
|
|
309 return NGX_ERROR;
|
|
|
310 }
|
|
|
311
|
|
|
312 nchanges = 0;
|
|
|
313 }
|
|
|
314
|
|
|
315 return NGX_OK;
|
|
|
316 }
|
|
|
317
|
|
|
318
|
|
48
|
319 ngx_int_t
|
|
|
320 ngx_devpoll_process_events(ngx_cycle_t *cycle)
|
|
0
|
321 {
|
|
32
|
322 int events, revents;
|
|
0
|
323 ngx_int_t i;
|
|
50
|
324 ngx_uint_t lock, accept_lock, expire;
|
|
0
|
325 size_t n;
|
|
|
326 ngx_msec_t timer;
|
|
|
327 ngx_err_t err;
|
|
50
|
328 #if 0
|
|
0
|
329 ngx_cycle_t **old_cycle;
|
|
50
|
330 #endif
|
|
0
|
331 ngx_event_t *rev, *wev;
|
|
|
332 ngx_connection_t *c;
|
|
|
333 ngx_epoch_msec_t delta;
|
|
|
334 struct dvpoll dvp;
|
|
|
335 struct timeval tv;
|
|
|
336
|
|
|
337 for ( ;; ) {
|
|
|
338 timer = ngx_event_find_timer();
|
|
|
339
|
|
|
340 if (timer != 0) {
|
|
|
341 break;
|
|
|
342 }
|
|
|
343
|
|
|
344 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
345 "devpoll expired timer");
|
|
|
346
|
|
|
347 ngx_event_expire_timers((ngx_msec_t)
|
|
|
348 (ngx_elapsed_msec - ngx_old_elapsed_msec));
|
|
|
349 }
|
|
|
350
|
|
|
351 /* NGX_TIMER_INFINITE == INFTIM */
|
|
|
352
|
|
|
353 if (timer == NGX_TIMER_INFINITE) {
|
|
|
354 expire = 0;
|
|
|
355
|
|
|
356 } else {
|
|
|
357 expire = 1;
|
|
|
358 }
|
|
|
359
|
|
|
360 ngx_old_elapsed_msec = ngx_elapsed_msec;
|
|
|
361 accept_lock = 0;
|
|
|
362
|
|
|
363 if (ngx_accept_mutex) {
|
|
|
364 if (ngx_accept_disabled > 0) {
|
|
|
365 ngx_accept_disabled--;
|
|
|
366
|
|
|
367 } else {
|
|
|
368 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
|
|
|
369 return NGX_ERROR;
|
|
|
370 }
|
|
|
371
|
|
|
372 if (ngx_accept_mutex_held) {
|
|
|
373 accept_lock = 1;
|
|
|
374
|
|
|
375 } else if (timer == NGX_TIMER_INFINITE
|
|
|
376 || timer > ngx_accept_mutex_delay)
|
|
|
377 {
|
|
|
378 timer = ngx_accept_mutex_delay;
|
|
|
379 expire = 0;
|
|
|
380 }
|
|
|
381 }
|
|
|
382 }
|
|
|
383
|
|
|
384 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
385 "devpoll timer: %d", timer);
|
|
|
386
|
|
|
387 if (nchanges) {
|
|
|
388 n = nchanges * sizeof(struct pollfd);
|
|
|
389 if (write(dp, change_list, n) != (ssize_t) n) {
|
|
|
390 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
391 "write(/dev/poll) failed");
|
|
|
392 ngx_accept_mutex_unlock();
|
|
|
393 return NGX_ERROR;
|
|
|
394 }
|
|
|
395 }
|
|
|
396
|
|
|
397 dvp.dp_fds = event_list;
|
|
|
398 dvp.dp_nfds = nevents;
|
|
|
399 dvp.dp_timeout = timer;
|
|
|
400 events = ioctl(dp, DP_POLL, &dvp);
|
|
|
401
|
|
|
402 if (events == -1) {
|
|
|
403 err = ngx_errno;
|
|
|
404 } else {
|
|
|
405 err = 0;
|
|
|
406 }
|
|
|
407
|
|
|
408 nchanges = 0;
|
|
|
409
|
|
|
410 ngx_gettimeofday(&tv);
|
|
|
411 ngx_time_update(tv.tv_sec);
|
|
|
412
|
|
|
413 delta = ngx_elapsed_msec;
|
|
|
414 ngx_elapsed_msec = (ngx_epoch_msec_t) tv.tv_sec * 1000
|
|
|
415 + tv.tv_usec / 1000 - ngx_start_msec;
|
|
|
416
|
|
|
417 if (err) {
|
|
|
418 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
419 cycle->log, err, "ioctl(DP_POLL) failed");
|
|
|
420 ngx_accept_mutex_unlock();
|
|
|
421 return NGX_ERROR;
|
|
|
422 }
|
|
|
423
|
|
|
424 if (timer != NGX_TIMER_INFINITE) {
|
|
|
425 delta = ngx_elapsed_msec - delta;
|
|
|
426
|
|
|
427 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
428 "devpoll timer: %d, delta: %d", timer, (int) delta);
|
|
|
429 } else {
|
|
|
430 if (events == 0) {
|
|
|
431 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
432 "ioctl(DP_POLL) returned no events without timeout");
|
|
|
433 ngx_accept_mutex_unlock();
|
|
|
434 return NGX_ERROR;
|
|
|
435 }
|
|
|
436 }
|
|
|
437
|
|
|
438 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
439 ngx_accept_mutex_unlock();
|
|
|
440 return NGX_ERROR;
|
|
|
441 }
|
|
|
442
|
|
|
443 lock = 1;
|
|
|
444
|
|
|
445 for (i = 0; i < events; i++) {
|
|
|
446 c = &ngx_cycle->connections[event_list[i].fd];
|
|
|
447
|
|
|
448 if (c->fd == -1) {
|
|
22
|
449 if (ngx_cycle->read_events[event_list[i].fd].closed) {
|
|
|
450 continue;
|
|
|
451 }
|
|
|
452
|
|
|
453 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unexpected event");
|
|
|
454 continue;
|
|
|
455 }
|
|
|
456
|
|
|
457 #if 0
|
|
|
458 if (c->fd == -1) {
|
|
0
|
459 old_cycle = ngx_old_cycles.elts;
|
|
|
460 for (j = 0; j < ngx_old_cycles.nelts; j++) {
|
|
|
461 if (old_cycle[j] == NULL) {
|
|
|
462 continue;
|
|
|
463 }
|
|
|
464 c = &old_cycle[j]->connections[event_list[i].fd];
|
|
|
465 if (c->fd != -1) {
|
|
|
466 break;
|
|
|
467 }
|
|
|
468 }
|
|
|
469 }
|
|
|
470
|
|
|
471 if (c->fd == -1) {
|
|
|
472 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "unknown cycle");
|
|
|
473 exit(1);
|
|
|
474 }
|
|
22
|
475 #endif
|
|
0
|
476
|
|
32
|
477 revents = event_list[i].revents;
|
|
|
478
|
|
0
|
479 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
480 "devpoll: fd:%d, ev:%04Xd, rev:%04Xd",
|
|
32
|
481 event_list[i].fd, event_list[i].events, revents);
|
|
0
|
482
|
|
32
|
483 if (revents & (POLLERR|POLLHUP|POLLNVAL)) {
|
|
0
|
484 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
10
|
485 "ioctl(DP_POLL) error fd:%d ev:%04Xd rev:%04Xd",
|
|
32
|
486 event_list[i].fd, event_list[i].events, revents);
|
|
0
|
487 }
|
|
|
488
|
|
32
|
489 if (revents & ~(POLLIN|POLLOUT|POLLERR|POLLHUP|POLLNVAL)) {
|
|
0
|
490 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
491 "strange ioctl(DP_POLL) events "
|
|
10
|
492 "fd:%d ev:%04Xd rev:%04Xd",
|
|
32
|
493 event_list[i].fd, event_list[i].events, revents);
|
|
|
494 }
|
|
|
495
|
|
|
496 if ((revents & (POLLERR|POLLHUP|POLLNVAL))
|
|
|
497 && (revents & (POLLIN|POLLOUT)) == 0)
|
|
|
498 {
|
|
|
499 /*
|
|
|
500 * if the error events were returned without POLLIN or POLLOUT,
|
|
|
501 * then add these flags to handle the events at least in one
|
|
|
502 * active handler
|
|
|
503 */
|
|
|
504
|
|
|
505 revents |= POLLIN|POLLOUT;
|
|
0
|
506 }
|
|
|
507
|
|
|
508 wev = c->write;
|
|
|
509
|
|
32
|
510 if ((revents & POLLOUT) && wev->active) {
|
|
0
|
511 wev->ready = 1;
|
|
|
512
|
|
|
513 if (!ngx_threaded && !ngx_accept_mutex_held) {
|
|
|
514 wev->event_handler(wev);
|
|
|
515
|
|
|
516 } else {
|
|
|
517 ngx_post_event(wev);
|
|
|
518 }
|
|
|
519 }
|
|
|
520
|
|
|
521 /*
|
|
|
522 * POLLIN must be handled after POLLOUT because we use
|
|
|
523 * the optimization to avoid the unnecessary mutex locking/unlocking
|
|
|
524 * if the accept event is the last one.
|
|
|
525 */
|
|
|
526
|
|
|
527 rev = c->read;
|
|
|
528
|
|
32
|
529 if ((revents & POLLIN) && rev->active) {
|
|
0
|
530 rev->ready = 1;
|
|
|
531
|
|
|
532 if (!ngx_threaded && !ngx_accept_mutex_held) {
|
|
|
533 rev->event_handler(rev);
|
|
|
534
|
|
|
535 } else if (!rev->accept) {
|
|
|
536 ngx_post_event(rev);
|
|
|
537
|
|
|
538 } else if (ngx_accept_disabled <= 0) {
|
|
|
539 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
540
|
|
|
541 c->read->event_handler(rev);
|
|
|
542
|
|
|
543 if (ngx_accept_disabled > 0) {
|
|
|
544 ngx_accept_mutex_unlock();
|
|
|
545 accept_lock = 0;
|
|
|
546 }
|
|
|
547
|
|
|
548 if (i + 1 == events) {
|
|
|
549 lock = 0;
|
|
|
550 break;
|
|
|
551 }
|
|
|
552
|
|
|
553 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
554 if (accept_lock) {
|
|
|
555 ngx_accept_mutex_unlock();
|
|
|
556 }
|
|
|
557 return NGX_ERROR;
|
|
|
558 }
|
|
|
559 }
|
|
|
560 }
|
|
|
561 }
|
|
|
562
|
|
|
563 if (accept_lock) {
|
|
|
564 ngx_accept_mutex_unlock();
|
|
|
565 }
|
|
|
566
|
|
|
567 if (lock) {
|
|
|
568 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
569 }
|
|
|
570
|
|
|
571 if (expire && delta) {
|
|
|
572 ngx_event_expire_timers((ngx_msec_t) delta);
|
|
|
573 }
|
|
|
574
|
|
|
575 if (!ngx_threaded) {
|
|
|
576 ngx_event_process_posted(cycle);
|
|
|
577 }
|
|
|
578
|
|
|
579 return NGX_OK;
|
|
|
580 }
|
|
|
581
|
|
|
582
|
|
48
|
583 static void *
|
|
|
584 ngx_devpoll_create_conf(ngx_cycle_t *cycle)
|
|
0
|
585 {
|
|
|
586 ngx_devpoll_conf_t *dpcf;
|
|
|
587
|
|
50
|
588 dpcf = ngx_palloc(cycle->pool, sizeof(ngx_devpoll_conf_t));
|
|
|
589 if (dpcf == NULL) {
|
|
|
590 return NGX_CONF_ERROR;
|
|
|
591 }
|
|
0
|
592
|
|
|
593 dpcf->changes = NGX_CONF_UNSET;
|
|
|
594 dpcf->events = NGX_CONF_UNSET;
|
|
|
595
|
|
|
596 return dpcf;
|
|
|
597 }
|
|
|
598
|
|
|
599
|
|
48
|
600 static char *
|
|
|
601 ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
602 {
|
|
|
603 ngx_devpoll_conf_t *dpcf = conf;
|
|
|
604
|
|
36
|
605 ngx_conf_init_unsigned_value(dpcf->changes, 32);
|
|
|
606 ngx_conf_init_unsigned_value(dpcf->events, 32);
|
|
0
|
607
|
|
|
608 return NGX_CONF_OK;
|
|
|
609 }
|
