|
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 = {
|
|
58
|
94 NGX_MODULE_V1,
|
|
0
|
95 &ngx_devpoll_module_ctx, /* module context */
|
|
|
96 ngx_devpoll_commands, /* module directives */
|
|
|
97 NGX_EVENT_MODULE, /* module type */
|
|
90
|
98 NULL, /* init master */
|
|
0
|
99 NULL, /* init module */
|
|
90
|
100 NULL, /* init process */
|
|
|
101 NULL, /* init thread */
|
|
|
102 NULL, /* exit thread */
|
|
|
103 NULL, /* exit process */
|
|
|
104 NULL, /* exit master */
|
|
|
105 NGX_MODULE_V1_PADDING
|
|
0
|
106 };
|
|
|
107
|
|
|
108
|
|
48
|
109 static ngx_int_t
|
|
|
110 ngx_devpoll_init(ngx_cycle_t *cycle)
|
|
0
|
111 {
|
|
|
112 size_t n;
|
|
|
113 ngx_devpoll_conf_t *dpcf;
|
|
|
114
|
|
|
115 dpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_devpoll_module);
|
|
|
116
|
|
|
117 if (dp == -1) {
|
|
|
118 dp = open("/dev/poll", O_RDWR);
|
|
|
119
|
|
|
120 if (dp == -1) {
|
|
|
121 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
122 "open(/dev/poll) failed");
|
|
|
123 return NGX_ERROR;
|
|
|
124 }
|
|
|
125 }
|
|
|
126
|
|
|
127 if (max_changes < dpcf->changes) {
|
|
|
128 if (nchanges) {
|
|
|
129 n = nchanges * sizeof(struct pollfd);
|
|
|
130 if (write(dp, change_list, n) != (ssize_t) n) {
|
|
|
131 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
132 "write(/dev/poll) failed");
|
|
|
133 return NGX_ERROR;
|
|
|
134 }
|
|
|
135
|
|
|
136 nchanges = 0;
|
|
|
137 }
|
|
|
138
|
|
|
139 if (change_list) {
|
|
|
140 ngx_free(change_list);
|
|
|
141 }
|
|
|
142
|
|
50
|
143 change_list = ngx_alloc(sizeof(struct pollfd) * dpcf->changes,
|
|
|
144 cycle->log);
|
|
|
145 if (change_list == NULL) {
|
|
|
146 return NGX_ERROR;
|
|
|
147 }
|
|
0
|
148
|
|
|
149 if (change_index) {
|
|
|
150 ngx_free(change_index);
|
|
|
151 }
|
|
|
152
|
|
50
|
153 change_index = ngx_alloc(sizeof(ngx_event_t *) * dpcf->changes,
|
|
|
154 cycle->log);
|
|
|
155 if (change_index == NULL) {
|
|
|
156 return NGX_ERROR;
|
|
|
157 }
|
|
0
|
158 }
|
|
|
159
|
|
|
160 max_changes = dpcf->changes;
|
|
|
161
|
|
|
162 if (nevents < dpcf->events) {
|
|
|
163 if (event_list) {
|
|
|
164 ngx_free(event_list);
|
|
|
165 }
|
|
|
166
|
|
50
|
167 event_list = ngx_alloc(sizeof(struct pollfd) * dpcf->events,
|
|
|
168 cycle->log);
|
|
|
169 if (event_list == NULL) {
|
|
|
170 return NGX_ERROR;
|
|
|
171 }
|
|
0
|
172 }
|
|
|
173
|
|
|
174 nevents = dpcf->events;
|
|
|
175
|
|
|
176 ngx_io = ngx_os_io;
|
|
|
177
|
|
|
178 ngx_event_actions = ngx_devpoll_module_ctx.actions;
|
|
|
179
|
|
|
180 ngx_event_flags = NGX_USE_LEVEL_EVENT;
|
|
|
181
|
|
|
182 return NGX_OK;
|
|
|
183 }
|
|
|
184
|
|
|
185
|
|
48
|
186 static void
|
|
|
187 ngx_devpoll_done(ngx_cycle_t *cycle)
|
|
0
|
188 {
|
|
|
189 if (close(dp) == -1) {
|
|
|
190 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
191 "close(/dev/poll) failed");
|
|
|
192 }
|
|
|
193
|
|
|
194 dp = -1;
|
|
|
195
|
|
|
196 ngx_free(change_list);
|
|
|
197 ngx_free(event_list);
|
|
|
198 ngx_free(change_index);
|
|
|
199
|
|
|
200 change_list = NULL;
|
|
|
201 event_list = NULL;
|
|
|
202 change_index = NULL;
|
|
|
203 max_changes = 0;
|
|
|
204 nchanges = 0;
|
|
|
205 nevents = 0;
|
|
|
206 }
|
|
|
207
|
|
|
208
|
|
48
|
209 static ngx_int_t
|
|
|
210 ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags)
|
|
0
|
211 {
|
|
|
212 #if (NGX_DEBUG)
|
|
|
213 ngx_connection_t *c;
|
|
|
214 #endif
|
|
|
215
|
|
|
216 #if (NGX_READ_EVENT != POLLIN)
|
|
2
|
217 event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT;
|
|
0
|
218 #endif
|
|
|
219
|
|
|
220 #if (NGX_DEBUG)
|
|
|
221 c = ev->data;
|
|
|
222 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
10
|
223 "devpoll add event: fd:%d ev:%04Xd", c->fd, event);
|
|
0
|
224 #endif
|
|
|
225
|
|
|
226 ev->active = 1;
|
|
2
|
227
|
|
0
|
228 return ngx_devpoll_set_event(ev, event, 0);
|
|
|
229 }
|
|
|
230
|
|
|
231
|
|
48
|
232 static ngx_int_t
|
|
|
233 ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags)
|
|
0
|
234 {
|
|
|
235 ngx_event_t *e;
|
|
|
236 ngx_connection_t *c;
|
|
|
237
|
|
|
238 c = ev->data;
|
|
|
239
|
|
2
|
240 #if (NGX_READ_EVENT != POLLIN)
|
|
|
241 event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT;
|
|
|
242 #endif
|
|
|
243
|
|
0
|
244 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
10
|
245 "devpoll del event: fd:%d ev:%04Xd", c->fd, event);
|
|
0
|
246
|
|
|
247 if (ngx_devpoll_set_event(ev, POLLREMOVE, flags) == NGX_ERROR) {
|
|
|
248 return NGX_ERROR;
|
|
|
249 }
|
|
|
250
|
|
|
251 ev->active = 0;
|
|
|
252
|
|
|
253 if (flags & NGX_CLOSE_EVENT) {
|
|
|
254 return NGX_OK;
|
|
|
255 }
|
|
|
256
|
|
2
|
257 /* restore the paired event if it exists */
|
|
0
|
258
|
|
2
|
259 if (event == POLLIN) {
|
|
0
|
260 e = c->write;
|
|
|
261 event = POLLOUT;
|
|
|
262
|
|
|
263 } else {
|
|
|
264 e = c->read;
|
|
|
265 event = POLLIN;
|
|
|
266 }
|
|
|
267
|
|
2
|
268 if (e && e->active) {
|
|
0
|
269 return ngx_devpoll_set_event(e, event, 0);
|
|
|
270 }
|
|
|
271
|
|
|
272 return NGX_OK;
|
|
|
273 }
|
|
|
274
|
|
|
275
|
|
48
|
276 static ngx_int_t
|
|
|
277 ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags)
|
|
0
|
278 {
|
|
|
279 size_t n;
|
|
|
280 ngx_connection_t *c;
|
|
|
281
|
|
|
282 c = ev->data;
|
|
|
283
|
|
|
284 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
10
|
285 "devpoll fd:%d ev:%04Xd fl:%04Xd", c->fd, event, flags);
|
|
0
|
286
|
|
|
287 if (nchanges >= max_changes) {
|
|
|
288 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
|
289 "/dev/pool change list is filled up");
|
|
|
290
|
|
|
291 n = nchanges * sizeof(struct pollfd);
|
|
|
292 if (write(dp, change_list, n) != (ssize_t) n) {
|
|
|
293 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
294 "write(/dev/poll) failed");
|
|
|
295 return NGX_ERROR;
|
|
|
296 }
|
|
|
297
|
|
|
298 nchanges = 0;
|
|
|
299 }
|
|
|
300
|
|
|
301 change_list[nchanges].fd = c->fd;
|
|
|
302 change_list[nchanges].events = event;
|
|
|
303 change_list[nchanges].revents = 0;
|
|
|
304
|
|
|
305 change_index[nchanges] = ev;
|
|
|
306 ev->index = nchanges;
|
|
|
307
|
|
|
308 nchanges++;
|
|
|
309
|
|
|
310 if (flags & NGX_CLOSE_EVENT) {
|
|
|
311 n = nchanges * sizeof(struct pollfd);
|
|
|
312 if (write(dp, change_list, n) != (ssize_t) n) {
|
|
|
313 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
314 "write(/dev/poll) failed");
|
|
|
315 return NGX_ERROR;
|
|
|
316 }
|
|
|
317
|
|
|
318 nchanges = 0;
|
|
|
319 }
|
|
|
320
|
|
|
321 return NGX_OK;
|
|
|
322 }
|
|
|
323
|
|
|
324
|
|
48
|
325 ngx_int_t
|
|
|
326 ngx_devpoll_process_events(ngx_cycle_t *cycle)
|
|
0
|
327 {
|
|
32
|
328 int events, revents;
|
|
0
|
329 ngx_int_t i;
|
|
50
|
330 ngx_uint_t lock, accept_lock, expire;
|
|
0
|
331 size_t n;
|
|
|
332 ngx_msec_t timer;
|
|
|
333 ngx_err_t err;
|
|
50
|
334 #if 0
|
|
0
|
335 ngx_cycle_t **old_cycle;
|
|
50
|
336 #endif
|
|
0
|
337 ngx_event_t *rev, *wev;
|
|
|
338 ngx_connection_t *c;
|
|
|
339 ngx_epoch_msec_t delta;
|
|
|
340 struct dvpoll dvp;
|
|
|
341 struct timeval tv;
|
|
|
342
|
|
|
343 for ( ;; ) {
|
|
|
344 timer = ngx_event_find_timer();
|
|
|
345
|
|
|
346 if (timer != 0) {
|
|
|
347 break;
|
|
|
348 }
|
|
|
349
|
|
|
350 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
351 "devpoll expired timer");
|
|
|
352
|
|
|
353 ngx_event_expire_timers((ngx_msec_t)
|
|
|
354 (ngx_elapsed_msec - ngx_old_elapsed_msec));
|
|
|
355 }
|
|
|
356
|
|
|
357 /* NGX_TIMER_INFINITE == INFTIM */
|
|
|
358
|
|
|
359 if (timer == NGX_TIMER_INFINITE) {
|
|
|
360 expire = 0;
|
|
|
361
|
|
|
362 } else {
|
|
|
363 expire = 1;
|
|
|
364 }
|
|
|
365
|
|
|
366 ngx_old_elapsed_msec = ngx_elapsed_msec;
|
|
|
367 accept_lock = 0;
|
|
|
368
|
|
|
369 if (ngx_accept_mutex) {
|
|
|
370 if (ngx_accept_disabled > 0) {
|
|
|
371 ngx_accept_disabled--;
|
|
|
372
|
|
|
373 } else {
|
|
|
374 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
|
|
|
375 return NGX_ERROR;
|
|
|
376 }
|
|
|
377
|
|
|
378 if (ngx_accept_mutex_held) {
|
|
|
379 accept_lock = 1;
|
|
|
380
|
|
|
381 } else if (timer == NGX_TIMER_INFINITE
|
|
|
382 || timer > ngx_accept_mutex_delay)
|
|
|
383 {
|
|
|
384 timer = ngx_accept_mutex_delay;
|
|
|
385 expire = 0;
|
|
|
386 }
|
|
|
387 }
|
|
|
388 }
|
|
|
389
|
|
|
390 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
391 "devpoll timer: %d", timer);
|
|
|
392
|
|
|
393 if (nchanges) {
|
|
|
394 n = nchanges * sizeof(struct pollfd);
|
|
|
395 if (write(dp, change_list, n) != (ssize_t) n) {
|
|
|
396 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
397 "write(/dev/poll) failed");
|
|
|
398 ngx_accept_mutex_unlock();
|
|
|
399 return NGX_ERROR;
|
|
|
400 }
|
|
|
401 }
|
|
|
402
|
|
|
403 dvp.dp_fds = event_list;
|
|
|
404 dvp.dp_nfds = nevents;
|
|
|
405 dvp.dp_timeout = timer;
|
|
|
406 events = ioctl(dp, DP_POLL, &dvp);
|
|
|
407
|
|
|
408 if (events == -1) {
|
|
|
409 err = ngx_errno;
|
|
|
410 } else {
|
|
|
411 err = 0;
|
|
|
412 }
|
|
|
413
|
|
|
414 nchanges = 0;
|
|
|
415
|
|
|
416 ngx_gettimeofday(&tv);
|
|
|
417 ngx_time_update(tv.tv_sec);
|
|
|
418
|
|
|
419 delta = ngx_elapsed_msec;
|
|
|
420 ngx_elapsed_msec = (ngx_epoch_msec_t) tv.tv_sec * 1000
|
|
|
421 + tv.tv_usec / 1000 - ngx_start_msec;
|
|
|
422
|
|
|
423 if (err) {
|
|
|
424 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
425 cycle->log, err, "ioctl(DP_POLL) failed");
|
|
|
426 ngx_accept_mutex_unlock();
|
|
|
427 return NGX_ERROR;
|
|
|
428 }
|
|
|
429
|
|
|
430 if (timer != NGX_TIMER_INFINITE) {
|
|
|
431 delta = ngx_elapsed_msec - delta;
|
|
|
432
|
|
|
433 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
434 "devpoll timer: %d, delta: %d", timer, (int) delta);
|
|
|
435 } else {
|
|
|
436 if (events == 0) {
|
|
|
437 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
438 "ioctl(DP_POLL) returned no events without timeout");
|
|
|
439 ngx_accept_mutex_unlock();
|
|
|
440 return NGX_ERROR;
|
|
|
441 }
|
|
|
442 }
|
|
|
443
|
|
|
444 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
445 ngx_accept_mutex_unlock();
|
|
|
446 return NGX_ERROR;
|
|
|
447 }
|
|
|
448
|
|
|
449 lock = 1;
|
|
|
450
|
|
|
451 for (i = 0; i < events; i++) {
|
|
|
452 c = &ngx_cycle->connections[event_list[i].fd];
|
|
|
453
|
|
|
454 if (c->fd == -1) {
|
|
22
|
455 if (ngx_cycle->read_events[event_list[i].fd].closed) {
|
|
|
456 continue;
|
|
|
457 }
|
|
|
458
|
|
|
459 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unexpected event");
|
|
|
460 continue;
|
|
|
461 }
|
|
|
462
|
|
|
463 #if 0
|
|
|
464 if (c->fd == -1) {
|
|
0
|
465 old_cycle = ngx_old_cycles.elts;
|
|
|
466 for (j = 0; j < ngx_old_cycles.nelts; j++) {
|
|
|
467 if (old_cycle[j] == NULL) {
|
|
|
468 continue;
|
|
|
469 }
|
|
|
470 c = &old_cycle[j]->connections[event_list[i].fd];
|
|
|
471 if (c->fd != -1) {
|
|
|
472 break;
|
|
|
473 }
|
|
|
474 }
|
|
|
475 }
|
|
|
476
|
|
|
477 if (c->fd == -1) {
|
|
|
478 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "unknown cycle");
|
|
|
479 exit(1);
|
|
|
480 }
|
|
22
|
481 #endif
|
|
0
|
482
|
|
32
|
483 revents = event_list[i].revents;
|
|
|
484
|
|
0
|
485 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
486 "devpoll: fd:%d, ev:%04Xd, rev:%04Xd",
|
|
32
|
487 event_list[i].fd, event_list[i].events, revents);
|
|
0
|
488
|
|
32
|
489 if (revents & (POLLERR|POLLHUP|POLLNVAL)) {
|
|
0
|
490 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
10
|
491 "ioctl(DP_POLL) error fd:%d ev:%04Xd rev:%04Xd",
|
|
32
|
492 event_list[i].fd, event_list[i].events, revents);
|
|
0
|
493 }
|
|
|
494
|
|
32
|
495 if (revents & ~(POLLIN|POLLOUT|POLLERR|POLLHUP|POLLNVAL)) {
|
|
0
|
496 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
497 "strange ioctl(DP_POLL) events "
|
|
10
|
498 "fd:%d ev:%04Xd rev:%04Xd",
|
|
32
|
499 event_list[i].fd, event_list[i].events, revents);
|
|
|
500 }
|
|
|
501
|
|
|
502 if ((revents & (POLLERR|POLLHUP|POLLNVAL))
|
|
|
503 && (revents & (POLLIN|POLLOUT)) == 0)
|
|
|
504 {
|
|
|
505 /*
|
|
|
506 * if the error events were returned without POLLIN or POLLOUT,
|
|
|
507 * then add these flags to handle the events at least in one
|
|
|
508 * active handler
|
|
|
509 */
|
|
|
510
|
|
|
511 revents |= POLLIN|POLLOUT;
|
|
0
|
512 }
|
|
|
513
|
|
|
514 wev = c->write;
|
|
|
515
|
|
32
|
516 if ((revents & POLLOUT) && wev->active) {
|
|
0
|
517 wev->ready = 1;
|
|
|
518
|
|
|
519 if (!ngx_threaded && !ngx_accept_mutex_held) {
|
|
58
|
520 wev->handler(wev);
|
|
0
|
521
|
|
|
522 } else {
|
|
|
523 ngx_post_event(wev);
|
|
|
524 }
|
|
|
525 }
|
|
|
526
|
|
|
527 /*
|
|
|
528 * POLLIN must be handled after POLLOUT because we use
|
|
|
529 * the optimization to avoid the unnecessary mutex locking/unlocking
|
|
|
530 * if the accept event is the last one.
|
|
|
531 */
|
|
|
532
|
|
|
533 rev = c->read;
|
|
|
534
|
|
32
|
535 if ((revents & POLLIN) && rev->active) {
|
|
0
|
536 rev->ready = 1;
|
|
|
537
|
|
|
538 if (!ngx_threaded && !ngx_accept_mutex_held) {
|
|
58
|
539 rev->handler(rev);
|
|
0
|
540
|
|
|
541 } else if (!rev->accept) {
|
|
|
542 ngx_post_event(rev);
|
|
|
543
|
|
|
544 } else if (ngx_accept_disabled <= 0) {
|
|
|
545 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
546
|
|
58
|
547 c->read->handler(rev);
|
|
0
|
548
|
|
|
549 if (ngx_accept_disabled > 0) {
|
|
|
550 ngx_accept_mutex_unlock();
|
|
|
551 accept_lock = 0;
|
|
|
552 }
|
|
|
553
|
|
|
554 if (i + 1 == events) {
|
|
|
555 lock = 0;
|
|
|
556 break;
|
|
|
557 }
|
|
|
558
|
|
|
559 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
560 if (accept_lock) {
|
|
|
561 ngx_accept_mutex_unlock();
|
|
|
562 }
|
|
|
563 return NGX_ERROR;
|
|
|
564 }
|
|
|
565 }
|
|
|
566 }
|
|
|
567 }
|
|
|
568
|
|
|
569 if (accept_lock) {
|
|
|
570 ngx_accept_mutex_unlock();
|
|
|
571 }
|
|
|
572
|
|
|
573 if (lock) {
|
|
|
574 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
575 }
|
|
|
576
|
|
|
577 if (expire && delta) {
|
|
|
578 ngx_event_expire_timers((ngx_msec_t) delta);
|
|
|
579 }
|
|
|
580
|
|
|
581 if (!ngx_threaded) {
|
|
|
582 ngx_event_process_posted(cycle);
|
|
|
583 }
|
|
|
584
|
|
|
585 return NGX_OK;
|
|
|
586 }
|
|
|
587
|
|
|
588
|
|
48
|
589 static void *
|
|
|
590 ngx_devpoll_create_conf(ngx_cycle_t *cycle)
|
|
0
|
591 {
|
|
|
592 ngx_devpoll_conf_t *dpcf;
|
|
|
593
|
|
50
|
594 dpcf = ngx_palloc(cycle->pool, sizeof(ngx_devpoll_conf_t));
|
|
|
595 if (dpcf == NULL) {
|
|
|
596 return NGX_CONF_ERROR;
|
|
|
597 }
|
|
0
|
598
|
|
|
599 dpcf->changes = NGX_CONF_UNSET;
|
|
|
600 dpcf->events = NGX_CONF_UNSET;
|
|
|
601
|
|
|
602 return dpcf;
|
|
|
603 }
|
|
|
604
|
|
|
605
|
|
48
|
606 static char *
|
|
|
607 ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
608 {
|
|
|
609 ngx_devpoll_conf_t *dpcf = conf;
|
|
|
610
|
|
36
|
611 ngx_conf_init_unsigned_value(dpcf->changes, 32);
|
|
|
612 ngx_conf_init_unsigned_value(dpcf->events, 32);
|
|
0
|
613
|
|
|
614 return NGX_CONF_OK;
|
|
|
615 }
|
