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 #include <ngx_kqueue_module.h>
|
|
11
|
|
12
|
|
13 typedef struct {
|
|
14 int changes;
|
|
15 int events;
|
|
16 } ngx_kqueue_conf_t;
|
|
17
|
|
18
|
112
|
19 static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer);
|
0
|
20 static void ngx_kqueue_done(ngx_cycle_t *cycle);
|
|
21 static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags);
|
|
22 static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags);
|
|
23 static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags);
|
|
24 static ngx_int_t ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try);
|
112
|
25 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
|
|
26 ngx_uint_t flags);
|
0
|
27 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
|
48
|
28 struct kevent *kev);
|
0
|
29
|
|
30 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
|
|
31 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
|
|
32
|
|
33
|
|
34 int ngx_kqueue = -1;
|
|
35
|
|
36 /*
|
|
37 * The "change_list" should be declared as ngx_thread_volatile.
|
|
38 * However, the use of the change_list is localized in kqueue functions and
|
|
39 * is protected by the mutex so even the "icc -ipo" should not build the code
|
|
40 * with the race condition. Thus we avoid the declaration to make a more
|
|
41 * readable code.
|
|
42 */
|
|
43
|
|
44 static struct kevent *change_list, *change_list0, *change_list1;
|
|
45 static struct kevent *event_list;
|
|
46 static int max_changes, nchanges, nevents;
|
|
47
|
|
48 #if (NGX_THREADS)
|
|
49 static ngx_mutex_t *list_mutex;
|
|
50 static ngx_mutex_t *kevent_mutex;
|
|
51 #endif
|
|
52
|
|
53
|
|
54
|
|
55 static ngx_str_t kqueue_name = ngx_string("kqueue");
|
|
56
|
|
57 static ngx_command_t ngx_kqueue_commands[] = {
|
|
58
|
48
|
59 { ngx_string("kqueue_changes"),
|
|
60 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
61 ngx_conf_set_num_slot,
|
|
62 0,
|
|
63 offsetof(ngx_kqueue_conf_t, changes),
|
|
64 NULL },
|
0
|
65
|
48
|
66 { ngx_string("kqueue_events"),
|
|
67 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
68 ngx_conf_set_num_slot,
|
|
69 0,
|
|
70 offsetof(ngx_kqueue_conf_t, events),
|
|
71 NULL },
|
0
|
72
|
48
|
73 ngx_null_command
|
0
|
74 };
|
|
75
|
|
76
|
|
77 ngx_event_module_t ngx_kqueue_module_ctx = {
|
|
78 &kqueue_name,
|
|
79 ngx_kqueue_create_conf, /* create configuration */
|
|
80 ngx_kqueue_init_conf, /* init configuration */
|
|
81
|
|
82 {
|
|
83 ngx_kqueue_add_event, /* add an event */
|
|
84 ngx_kqueue_del_event, /* delete an event */
|
|
85 ngx_kqueue_add_event, /* enable an event */
|
|
86 ngx_kqueue_del_event, /* disable an event */
|
|
87 NULL, /* add an connection */
|
|
88 NULL, /* delete an connection */
|
|
89 ngx_kqueue_process_changes, /* process the changes */
|
|
90 ngx_kqueue_process_events, /* process the events */
|
|
91 ngx_kqueue_init, /* init the events */
|
|
92 ngx_kqueue_done /* done the events */
|
|
93 }
|
|
94
|
|
95 };
|
|
96
|
|
97 ngx_module_t ngx_kqueue_module = {
|
58
|
98 NGX_MODULE_V1,
|
0
|
99 &ngx_kqueue_module_ctx, /* module context */
|
|
100 ngx_kqueue_commands, /* module directives */
|
|
101 NGX_EVENT_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
|
48
|
114 static ngx_int_t
|
112
|
115 ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer)
|
0
|
116 {
|
114
|
117 ngx_kqueue_conf_t *kcf;
|
0
|
118 struct timespec ts;
|
114
|
119 #if (NGX_HAVE_TIMER_EVENT)
|
|
120 struct kevent kev;
|
|
121 #endif
|
0
|
122
|
|
123 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
|
|
124
|
|
125 if (ngx_kqueue == -1) {
|
|
126 ngx_kqueue = kqueue();
|
|
127
|
|
128 if (ngx_kqueue == -1) {
|
|
129 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
130 "kqueue() failed");
|
|
131 return NGX_ERROR;
|
|
132 }
|
|
133
|
|
134 #if (NGX_THREADS)
|
|
135
|
50
|
136 list_mutex = ngx_mutex_init(cycle->log, 0);
|
|
137 if (list_mutex == NULL) {
|
0
|
138 return NGX_ERROR;
|
|
139 }
|
|
140
|
50
|
141 kevent_mutex = ngx_mutex_init(cycle->log, 0);
|
|
142 if (kevent_mutex == NULL) {
|
0
|
143 return NGX_ERROR;
|
|
144 }
|
|
145
|
|
146 #endif
|
|
147 }
|
|
148
|
|
149 if (max_changes < kcf->changes) {
|
|
150 if (nchanges) {
|
|
151 ts.tv_sec = 0;
|
|
152 ts.tv_nsec = 0;
|
|
153
|
|
154 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
|
|
155 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
156 "kevent() failed");
|
|
157 return NGX_ERROR;
|
|
158 }
|
|
159 nchanges = 0;
|
|
160 }
|
|
161
|
|
162 if (change_list0) {
|
|
163 ngx_free(change_list0);
|
|
164 }
|
|
165
|
|
166 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
|
|
167 cycle->log);
|
|
168 if (change_list0 == NULL) {
|
|
169 return NGX_ERROR;
|
|
170 }
|
|
171
|
|
172 if (change_list1) {
|
|
173 ngx_free(change_list1);
|
|
174 }
|
|
175
|
|
176 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
|
|
177 cycle->log);
|
|
178 if (change_list1 == NULL) {
|
|
179 return NGX_ERROR;
|
|
180 }
|
|
181
|
|
182 change_list = change_list0;
|
|
183 }
|
|
184
|
|
185 max_changes = kcf->changes;
|
|
186
|
|
187 if (nevents < kcf->events) {
|
|
188 if (event_list) {
|
|
189 ngx_free(event_list);
|
|
190 }
|
|
191
|
|
192 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
|
|
193 if (event_list == NULL) {
|
|
194 return NGX_ERROR;
|
|
195 }
|
|
196 }
|
|
197
|
112
|
198 ngx_event_flags = 0;
|
|
199
|
|
200 #if (NGX_HAVE_TIMER_EVENT)
|
|
201
|
|
202 if (timer) {
|
|
203 kev.ident = 0;
|
|
204 kev.filter = EVFILT_TIMER;
|
|
205 kev.flags = EV_ADD|EV_ENABLE;
|
|
206 kev.fflags = 0;
|
|
207 kev.data = timer;
|
|
208 kev.udata = 0;
|
|
209
|
|
210 ts.tv_sec = 0;
|
|
211 ts.tv_nsec = 0;
|
|
212
|
|
213 if (kevent(ngx_kqueue, &kev, 1, NULL, 0, &ts) == -1) {
|
|
214 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
215 "kevent(EVFILT_TIMER) failed");
|
|
216 return NGX_ERROR;
|
|
217 }
|
|
218
|
|
219 ngx_event_flags |= NGX_USE_TIMER_EVENT;
|
|
220 }
|
|
221
|
|
222 #endif
|
|
223
|
|
224 ngx_event_flags |= NGX_USE_ONESHOT_EVENT|NGX_USE_KQUEUE_EVENT;
|
|
225
|
|
226 #if (NGX_HAVE_CLEAR_EVENT)
|
|
227 ngx_event_flags |= NGX_USE_CLEAR_EVENT;
|
|
228 #else
|
|
229 ngx_event_flags |= NGX_USE_LEVEL_EVENT;
|
|
230 #endif
|
|
231
|
|
232 #if (NGX_HAVE_LOWAT_EVENT)
|
|
233 ngx_event_flags |= NGX_USE_LOWAT_EVENT;
|
|
234 #endif
|
|
235
|
0
|
236 nevents = kcf->events;
|
|
237
|
|
238 ngx_io = ngx_os_io;
|
|
239
|
|
240 ngx_event_actions = ngx_kqueue_module_ctx.actions;
|
|
241
|
|
242 return NGX_OK;
|
|
243 }
|
|
244
|
|
245
|
48
|
246 static void
|
|
247 ngx_kqueue_done(ngx_cycle_t *cycle)
|
0
|
248 {
|
|
249 if (close(ngx_kqueue) == -1) {
|
|
250 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
251 "kqueue close() failed");
|
|
252 }
|
|
253
|
|
254 ngx_kqueue = -1;
|
|
255
|
|
256 #if (NGX_THREADS)
|
|
257 ngx_mutex_destroy(kevent_mutex);
|
|
258 ngx_mutex_destroy(list_mutex);
|
|
259 #endif
|
|
260
|
|
261 ngx_free(change_list1);
|
|
262 ngx_free(change_list0);
|
|
263 ngx_free(event_list);
|
|
264
|
|
265 change_list1 = NULL;
|
|
266 change_list0 = NULL;
|
|
267 change_list = NULL;
|
|
268 event_list = NULL;
|
|
269 max_changes = 0;
|
|
270 nchanges = 0;
|
|
271 nevents = 0;
|
|
272 }
|
|
273
|
|
274
|
48
|
275 static ngx_int_t
|
|
276 ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
|
0
|
277 {
|
|
278 ngx_int_t rc;
|
|
279 ngx_event_t *e;
|
|
280 ngx_connection_t *c;
|
|
281
|
|
282 ev->active = 1;
|
|
283 ev->disabled = 0;
|
|
284 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
|
|
285
|
112
|
286 ngx_mutex_lock(list_mutex);
|
0
|
287
|
4
|
288 #if 1
|
|
289
|
0
|
290 if (nchanges > 0
|
|
291 && ev->index < (u_int) nchanges
|
|
292 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
|
|
293 == (uintptr_t) ev)
|
|
294 {
|
|
295 if (change_list[ev->index].flags == EV_DISABLE) {
|
|
296
|
|
297 /*
|
|
298 * if the EV_DISABLE is still not passed to a kernel
|
|
299 * we will not pass it
|
|
300 */
|
|
301
|
|
302 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
303 "kevent activated: %d: ft:%d",
|
|
304 ngx_event_ident(ev->data), event);
|
|
305
|
|
306 if (ev->index < (u_int) --nchanges) {
|
4
|
307 e = (ngx_event_t *)
|
|
308 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
|
0
|
309 change_list[ev->index] = change_list[nchanges];
|
|
310 e->index = ev->index;
|
|
311 }
|
|
312
|
|
313 ngx_mutex_unlock(list_mutex);
|
|
314
|
|
315 return NGX_OK;
|
|
316 }
|
|
317
|
|
318 c = ev->data;
|
|
319
|
|
320 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
|
|
321 "previous event on #%d were not passed in kernel", c->fd);
|
|
322
|
|
323 ngx_mutex_unlock(list_mutex);
|
|
324
|
|
325 return NGX_ERROR;
|
|
326 }
|
|
327
|
4
|
328 #endif
|
|
329
|
0
|
330 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
|
|
331
|
|
332 ngx_mutex_unlock(list_mutex);
|
|
333
|
|
334 return rc;
|
|
335 }
|
|
336
|
|
337
|
48
|
338 static ngx_int_t
|
|
339 ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
|
0
|
340 {
|
|
341 ngx_int_t rc;
|
|
342 ngx_event_t *e;
|
|
343
|
|
344 ev->active = 0;
|
|
345 ev->disabled = 0;
|
|
346
|
112
|
347 ngx_mutex_lock(list_mutex);
|
0
|
348
|
4
|
349 #if 1
|
|
350
|
0
|
351 if (nchanges > 0
|
|
352 && ev->index < (u_int) nchanges
|
|
353 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
|
|
354 == (uintptr_t) ev)
|
|
355 {
|
|
356 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
357 "kevent deleted: %d: ft:%d",
|
|
358 ngx_event_ident(ev->data), event);
|
|
359
|
|
360 /* if the event is still not passed to a kernel we will not pass it */
|
|
361
|
|
362 if (ev->index < (u_int) --nchanges) {
|
4
|
363 e = (ngx_event_t *)
|
|
364 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
|
0
|
365 change_list[ev->index] = change_list[nchanges];
|
|
366 e->index = ev->index;
|
|
367 }
|
|
368
|
|
369 ngx_mutex_unlock(list_mutex);
|
|
370
|
|
371 return NGX_OK;
|
|
372 }
|
|
373
|
4
|
374 #endif
|
|
375
|
0
|
376 /*
|
|
377 * when the file descriptor is closed the kqueue automatically deletes
|
|
378 * its filters so we do not need to delete explicity the event
|
|
379 * before the closing the file descriptor.
|
|
380 */
|
|
381
|
|
382 if (flags & NGX_CLOSE_EVENT) {
|
|
383 ngx_mutex_unlock(list_mutex);
|
|
384 return NGX_OK;
|
|
385 }
|
|
386
|
|
387 if (flags & NGX_DISABLE_EVENT) {
|
|
388 ev->disabled = 1;
|
|
389 }
|
|
390
|
|
391 rc = ngx_kqueue_set_event(ev, event,
|
|
392 flags & NGX_DISABLE_EVENT ? EV_DISABLE : EV_DELETE);
|
|
393
|
|
394 ngx_mutex_unlock(list_mutex);
|
|
395
|
|
396 return rc;
|
|
397 }
|
|
398
|
|
399
|
48
|
400 static ngx_int_t
|
|
401 ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
|
0
|
402 {
|
|
403 struct kevent *kev;
|
|
404 struct timespec ts;
|
|
405 ngx_connection_t *c;
|
|
406
|
|
407 c = ev->data;
|
|
408
|
|
409 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
10
|
410 "kevent set event: %d: ft:%d fl:%04Xd",
|
0
|
411 c->fd, filter, flags);
|
|
412
|
|
413 if (nchanges >= max_changes) {
|
|
414 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
415 "kqueue change list is filled up");
|
|
416
|
|
417 ts.tv_sec = 0;
|
|
418 ts.tv_nsec = 0;
|
|
419
|
|
420 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
|
|
421 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
422 return NGX_ERROR;
|
|
423 }
|
|
424
|
|
425 nchanges = 0;
|
|
426 }
|
|
427
|
|
428 kev = &change_list[nchanges];
|
|
429
|
|
430 kev->ident = c->fd;
|
|
431 kev->filter = filter;
|
|
432 kev->flags = flags;
|
38
|
433 kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
|
0
|
434
|
|
435 if (filter == EVFILT_VNODE) {
|
|
436 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
|
|
437 |NOTE_ATTRIB|NOTE_RENAME
|
|
438 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
|
|
439 || __FreeBSD_version >= 500018
|
|
440 |NOTE_REVOKE
|
|
441 #endif
|
|
442 ;
|
|
443 kev->data = 0;
|
|
444
|
|
445 } else {
|
4
|
446 #if (NGX_HAVE_LOWAT_EVENT)
|
0
|
447 if (flags & NGX_LOWAT_EVENT) {
|
|
448 kev->fflags = NOTE_LOWAT;
|
|
449 kev->data = ev->available;
|
|
450
|
|
451 } else {
|
|
452 kev->fflags = 0;
|
|
453 kev->data = 0;
|
|
454 }
|
|
455 #else
|
|
456 kev->fflags = 0;
|
|
457 kev->data = 0;
|
|
458 #endif
|
|
459 }
|
|
460
|
|
461 ev->index = nchanges;
|
|
462 nchanges++;
|
|
463
|
|
464 return NGX_OK;
|
|
465 }
|
|
466
|
|
467
|
48
|
468 static ngx_int_t
|
112
|
469 ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
|
|
470 ngx_uint_t flags)
|
0
|
471 {
|
112
|
472 int events, n;
|
|
473 ngx_int_t i, instance;
|
|
474 ngx_uint_t level;
|
|
475 ngx_err_t err;
|
|
476 ngx_msec_t delta;
|
|
477 ngx_event_t *ev, **queue;
|
|
478 struct timespec ts, *tp;
|
0
|
479
|
|
480 if (ngx_threaded) {
|
|
481 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
482 return NGX_ERROR;
|
|
483 }
|
|
484
|
|
485 n = 0;
|
|
486
|
|
487 } else {
|
|
488 n = nchanges;
|
|
489 nchanges = 0;
|
|
490 }
|
|
491
|
|
492 if (timer == NGX_TIMER_INFINITE) {
|
|
493 tp = NULL;
|
|
494
|
|
495 } else {
|
|
496 ts.tv_sec = timer / 1000;
|
|
497 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
498 tp = &ts;
|
|
499 }
|
|
500
|
|
501 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
110
|
502 "kevent timer: %M, changes: %d", timer, n);
|
0
|
503
|
|
504 events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
|
|
505
|
|
506 if (events == -1) {
|
|
507 err = ngx_errno;
|
|
508 } else {
|
|
509 err = 0;
|
|
510 }
|
|
511
|
112
|
512 delta = ngx_current_msec;
|
|
513
|
|
514 if (flags & NGX_UPDATE_TIME) {
|
|
515 ngx_time_update(0, 0);
|
|
516 }
|
0
|
517
|
|
518 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
519 "kevent events: %d", events);
|
|
520
|
112
|
521 if (err) {
|
|
522 if (err == NGX_EINTR) {
|
|
523
|
|
524 if (ngx_event_timer_alarm) {
|
|
525 ngx_event_timer_alarm = 0;
|
|
526 return NGX_OK;
|
|
527 }
|
0
|
528
|
112
|
529 level = NGX_LOG_INFO;
|
|
530
|
|
531 } else {
|
|
532 level = NGX_LOG_ALERT;
|
|
533 }
|
|
534
|
|
535 ngx_log_error(level, cycle->log, err, "kevent() failed");
|
0
|
536 return NGX_ERROR;
|
|
537 }
|
|
538
|
|
539 if (timer != NGX_TIMER_INFINITE) {
|
112
|
540 delta = ngx_current_msec - delta;
|
0
|
541
|
|
542 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
106
|
543 "kevent timer: %M, delta: %M", timer, delta);
|
0
|
544
|
|
545 } else {
|
|
546 if (events == 0) {
|
|
547 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
548 "kevent() returned no events without timeout");
|
|
549 return NGX_ERROR;
|
|
550 }
|
|
551 }
|
|
552
|
112
|
553 if (events == 0) {
|
|
554 return NGX_OK;
|
|
555 }
|
0
|
556
|
112
|
557 ngx_mutex_lock(ngx_posted_events_mutex);
|
0
|
558
|
|
559 for (i = 0; i < events; i++) {
|
|
560
|
|
561 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
562
|
|
563 if (event_list[i].flags & EV_ERROR) {
|
|
564 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
565 "kevent() error on %d", event_list[i].ident);
|
|
566 continue;
|
|
567 }
|
|
568
|
112
|
569 #if (NGX_HAVE_TIMER_EVENT)
|
|
570
|
|
571 if (event_list[i].filter == EVFILT_TIMER) {
|
|
572 ngx_time_update(0, 0);
|
|
573 continue;
|
|
574 }
|
|
575
|
|
576 #endif
|
|
577
|
0
|
578 ev = (ngx_event_t *) event_list[i].udata;
|
|
579
|
|
580 switch (event_list[i].filter) {
|
|
581
|
|
582 case EVFILT_READ:
|
|
583 case EVFILT_WRITE:
|
|
584
|
|
585 instance = (uintptr_t) ev & 1;
|
|
586 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
587
|
|
588 if (ev->closed || ev->instance != instance) {
|
|
589
|
|
590 /*
|
|
591 * the stale event from a file descriptor
|
|
592 * that was just closed in this iteration
|
|
593 */
|
|
594
|
|
595 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
10
|
596 "kevent: stale event %p", ev);
|
0
|
597 continue;
|
|
598 }
|
|
599
|
|
600 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
601 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
602 }
|
|
603
|
58
|
604 if (ev->oneshot) {
|
|
605 ev->active = 0;
|
|
606 }
|
|
607
|
0
|
608 #if (NGX_THREADS)
|
|
609
|
112
|
610 if ((flags & NGX_POST_THREAD_EVENTS) && !ev->accept) {
|
0
|
611 ev->posted_ready = 1;
|
|
612 ev->posted_available = event_list[i].data;
|
|
613
|
|
614 if (event_list[i].flags & EV_EOF) {
|
|
615 ev->posted_eof = 1;
|
|
616 ev->posted_errno = event_list[i].fflags;
|
|
617 }
|
|
618
|
112
|
619 ngx_locked_post_event(ev, &ngx_posted_events);
|
0
|
620
|
|
621 continue;
|
|
622 }
|
|
623
|
|
624 #endif
|
|
625
|
|
626 ev->available = event_list[i].data;
|
|
627
|
|
628 if (event_list[i].flags & EV_EOF) {
|
|
629 ev->pending_eof = 1;
|
|
630 ev->kq_errno = event_list[i].fflags;
|
|
631 }
|
|
632
|
|
633 ev->ready = 1;
|
|
634
|
|
635 break;
|
|
636
|
|
637 case EVFILT_VNODE:
|
|
638 ev->kq_vnode = 1;
|
|
639
|
|
640 break;
|
|
641
|
|
642 case EVFILT_AIO:
|
|
643 ev->complete = 1;
|
|
644 ev->ready = 1;
|
|
645
|
|
646 break;
|
|
647
|
|
648 default:
|
|
649 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
650 "unexpected kevent() filter %d",
|
|
651 event_list[i].filter);
|
|
652 continue;
|
|
653 }
|
|
654
|
112
|
655 if (flags & NGX_POST_EVENTS) {
|
|
656 queue = (ngx_event_t **) (ev->accept ? &ngx_posted_accept_events:
|
|
657 &ngx_posted_events);
|
|
658 ngx_locked_post_event(ev, queue);
|
0
|
659
|
|
660 continue;
|
|
661 }
|
|
662
|
58
|
663 ev->handler(ev);
|
0
|
664 }
|
|
665
|
112
|
666 ngx_mutex_unlock(ngx_posted_events_mutex);
|
0
|
667
|
|
668 return NGX_OK;
|
|
669 }
|
|
670
|
|
671
|
48
|
672 static ngx_int_t
|
|
673 ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
0
|
674 {
|
|
675 int n;
|
|
676 ngx_int_t rc;
|
|
677 ngx_err_t err;
|
|
678 struct timespec ts;
|
|
679 struct kevent *changes;
|
|
680
|
112
|
681 ngx_mutex_lock(kevent_mutex);
|
0
|
682
|
112
|
683 ngx_mutex_lock(list_mutex);
|
0
|
684
|
|
685 if (nchanges == 0) {
|
|
686 ngx_mutex_unlock(list_mutex);
|
|
687 ngx_mutex_unlock(kevent_mutex);
|
|
688 return NGX_OK;
|
|
689 }
|
|
690
|
|
691 changes = change_list;
|
|
692 if (change_list == change_list0) {
|
|
693 change_list = change_list1;
|
|
694 } else {
|
|
695 change_list = change_list0;
|
|
696 }
|
|
697
|
|
698 n = nchanges;
|
|
699 nchanges = 0;
|
|
700
|
|
701 ngx_mutex_unlock(list_mutex);
|
|
702
|
|
703 ts.tv_sec = 0;
|
|
704 ts.tv_nsec = 0;
|
|
705
|
|
706 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
707 "kevent changes: %d", n);
|
|
708
|
|
709 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
710 err = ngx_errno;
|
|
711 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
712 cycle->log, err, "kevent() failed");
|
|
713 rc = NGX_ERROR;
|
|
714
|
|
715 } else {
|
|
716 rc = NGX_OK;
|
|
717 }
|
|
718
|
|
719 ngx_mutex_unlock(kevent_mutex);
|
|
720
|
|
721 return rc;
|
|
722 }
|
|
723
|
|
724
|
48
|
725 static ngx_inline void
|
|
726 ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
0
|
727 {
|
|
728 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
729 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
10
|
730 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
731 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
0
|
732 kev->ident, kev->filter,
|
|
733 kev->flags, kev->fflags,
|
|
734 kev->data, kev->udata);
|
|
735 }
|
|
736
|
|
737
|
48
|
738 static void *
|
|
739 ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
0
|
740 {
|
|
741 ngx_kqueue_conf_t *kcf;
|
|
742
|
50
|
743 kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
|
|
744 if (kcf == NULL) {
|
|
745 return NGX_CONF_ERROR;
|
|
746 }
|
0
|
747
|
|
748 kcf->changes = NGX_CONF_UNSET;
|
|
749 kcf->events = NGX_CONF_UNSET;
|
|
750
|
|
751 return kcf;
|
|
752 }
|
|
753
|
|
754
|
48
|
755 static char *
|
|
756 ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
0
|
757 {
|
|
758 ngx_kqueue_conf_t *kcf = conf;
|
|
759
|
|
760 ngx_conf_init_value(kcf->changes, 512);
|
|
761 ngx_conf_init_value(kcf->events, 512);
|
|
762
|
|
763 return NGX_CONF_OK;
|
|
764 }
|