|
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
|
|
|
19 static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle);
|
|
|
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);
|
|
|
25 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle);
|
|
|
26 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
|
|
|
27 struct kevent *kev);
|
|
|
28
|
|
|
29 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
|
|
|
30 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
|
|
|
31
|
|
|
32
|
|
|
33 int ngx_kqueue = -1;
|
|
|
34
|
|
|
35 /*
|
|
|
36 * The "change_list" should be declared as ngx_thread_volatile.
|
|
|
37 * However, the use of the change_list is localized in kqueue functions and
|
|
|
38 * is protected by the mutex so even the "icc -ipo" should not build the code
|
|
|
39 * with the race condition. Thus we avoid the declaration to make a more
|
|
|
40 * readable code.
|
|
|
41 */
|
|
|
42
|
|
|
43 static struct kevent *change_list, *change_list0, *change_list1;
|
|
|
44 static struct kevent *event_list;
|
|
|
45 static int max_changes, nchanges, nevents;
|
|
|
46
|
|
|
47 #if (NGX_THREADS)
|
|
|
48 static ngx_mutex_t *list_mutex;
|
|
|
49 static ngx_mutex_t *kevent_mutex;
|
|
|
50 #endif
|
|
|
51
|
|
|
52
|
|
|
53
|
|
|
54 static ngx_str_t kqueue_name = ngx_string("kqueue");
|
|
|
55
|
|
|
56 static ngx_command_t ngx_kqueue_commands[] = {
|
|
|
57
|
|
|
58 {ngx_string("kqueue_changes"),
|
|
|
59 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
60 ngx_conf_set_num_slot,
|
|
|
61 0,
|
|
|
62 offsetof(ngx_kqueue_conf_t, changes),
|
|
|
63 NULL},
|
|
|
64
|
|
|
65 {ngx_string("kqueue_events"),
|
|
|
66 NGX_EVENT_CONF|NGX_CONF_TAKE1,
|
|
|
67 ngx_conf_set_num_slot,
|
|
|
68 0,
|
|
|
69 offsetof(ngx_kqueue_conf_t, events),
|
|
|
70 NULL},
|
|
|
71
|
|
|
72 ngx_null_command
|
|
|
73 };
|
|
|
74
|
|
|
75
|
|
|
76 ngx_event_module_t ngx_kqueue_module_ctx = {
|
|
|
77 &kqueue_name,
|
|
|
78 ngx_kqueue_create_conf, /* create configuration */
|
|
|
79 ngx_kqueue_init_conf, /* init configuration */
|
|
|
80
|
|
|
81 {
|
|
|
82 ngx_kqueue_add_event, /* add an event */
|
|
|
83 ngx_kqueue_del_event, /* delete an event */
|
|
|
84 ngx_kqueue_add_event, /* enable an event */
|
|
|
85 ngx_kqueue_del_event, /* disable an event */
|
|
|
86 NULL, /* add an connection */
|
|
|
87 NULL, /* delete an connection */
|
|
|
88 ngx_kqueue_process_changes, /* process the changes */
|
|
|
89 ngx_kqueue_process_events, /* process the events */
|
|
|
90 ngx_kqueue_init, /* init the events */
|
|
|
91 ngx_kqueue_done /* done the events */
|
|
|
92 }
|
|
|
93
|
|
|
94 };
|
|
|
95
|
|
|
96 ngx_module_t ngx_kqueue_module = {
|
|
|
97 NGX_MODULE,
|
|
|
98 &ngx_kqueue_module_ctx, /* module context */
|
|
|
99 ngx_kqueue_commands, /* module directives */
|
|
|
100 NGX_EVENT_MODULE, /* module type */
|
|
|
101 NULL, /* init module */
|
|
|
102 NULL /* init process */
|
|
|
103 };
|
|
|
104
|
|
|
105
|
|
|
106
|
|
|
107 static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle)
|
|
|
108 {
|
|
|
109 struct timespec ts;
|
|
|
110 ngx_kqueue_conf_t *kcf;
|
|
|
111
|
|
|
112 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
|
|
|
113
|
|
|
114 if (ngx_kqueue == -1) {
|
|
|
115 ngx_kqueue = kqueue();
|
|
|
116
|
|
|
117 if (ngx_kqueue == -1) {
|
|
|
118 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
119 "kqueue() failed");
|
|
|
120 return NGX_ERROR;
|
|
|
121 }
|
|
|
122
|
|
|
123 #if (NGX_THREADS)
|
|
|
124
|
|
|
125 if (!(list_mutex = ngx_mutex_init(cycle->log, 0))) {
|
|
|
126 return NGX_ERROR;
|
|
|
127 }
|
|
|
128
|
|
|
129 if (!(kevent_mutex = ngx_mutex_init(cycle->log, 0))) {
|
|
|
130 return NGX_ERROR;
|
|
|
131 }
|
|
|
132
|
|
|
133 #endif
|
|
|
134 }
|
|
|
135
|
|
|
136 if (max_changes < kcf->changes) {
|
|
|
137 if (nchanges) {
|
|
|
138 ts.tv_sec = 0;
|
|
|
139 ts.tv_nsec = 0;
|
|
|
140
|
|
|
141 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
|
|
|
142 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
143 "kevent() failed");
|
|
|
144 return NGX_ERROR;
|
|
|
145 }
|
|
|
146 nchanges = 0;
|
|
|
147 }
|
|
|
148
|
|
|
149 if (change_list0) {
|
|
|
150 ngx_free(change_list0);
|
|
|
151 }
|
|
|
152
|
|
|
153 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
|
|
|
154 cycle->log);
|
|
|
155 if (change_list0 == NULL) {
|
|
|
156 return NGX_ERROR;
|
|
|
157 }
|
|
|
158
|
|
|
159 if (change_list1) {
|
|
|
160 ngx_free(change_list1);
|
|
|
161 }
|
|
|
162
|
|
|
163 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
|
|
|
164 cycle->log);
|
|
|
165 if (change_list1 == NULL) {
|
|
|
166 return NGX_ERROR;
|
|
|
167 }
|
|
|
168
|
|
|
169 change_list = change_list0;
|
|
|
170 }
|
|
|
171
|
|
|
172 max_changes = kcf->changes;
|
|
|
173
|
|
|
174 if (nevents < kcf->events) {
|
|
|
175 if (event_list) {
|
|
|
176 ngx_free(event_list);
|
|
|
177 }
|
|
|
178
|
|
|
179 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
|
|
|
180 if (event_list == NULL) {
|
|
|
181 return NGX_ERROR;
|
|
|
182 }
|
|
|
183 }
|
|
|
184
|
|
|
185 nevents = kcf->events;
|
|
|
186
|
|
|
187 ngx_io = ngx_os_io;
|
|
|
188
|
|
|
189 ngx_event_actions = ngx_kqueue_module_ctx.actions;
|
|
|
190
|
|
|
191 ngx_event_flags = NGX_USE_ONESHOT_EVENT
|
|
18
|
192 #if (NGX_HAVE_CLEAR_EVENT)
|
|
0
|
193 |NGX_USE_CLEAR_EVENT
|
|
|
194 #else
|
|
|
195 |NGX_USE_LEVEL_EVENT
|
|
|
196 #endif
|
|
4
|
197 #if (NGX_HAVE_LOWAT_EVENT)
|
|
|
198 |NGX_USE_LOWAT_EVENT
|
|
0
|
199 #endif
|
|
4
|
200 |NGX_USE_KQUEUE_EVENT;
|
|
0
|
201
|
|
|
202 return NGX_OK;
|
|
|
203 }
|
|
|
204
|
|
|
205
|
|
|
206 static void ngx_kqueue_done(ngx_cycle_t *cycle)
|
|
|
207 {
|
|
|
208 if (close(ngx_kqueue) == -1) {
|
|
|
209 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
210 "kqueue close() failed");
|
|
|
211 }
|
|
|
212
|
|
|
213 ngx_kqueue = -1;
|
|
|
214
|
|
|
215 #if (NGX_THREADS)
|
|
|
216 ngx_mutex_destroy(kevent_mutex);
|
|
|
217 ngx_mutex_destroy(list_mutex);
|
|
|
218 #endif
|
|
|
219
|
|
|
220 ngx_free(change_list1);
|
|
|
221 ngx_free(change_list0);
|
|
|
222 ngx_free(event_list);
|
|
|
223
|
|
|
224 change_list1 = NULL;
|
|
|
225 change_list0 = NULL;
|
|
|
226 change_list = NULL;
|
|
|
227 event_list = NULL;
|
|
|
228 max_changes = 0;
|
|
|
229 nchanges = 0;
|
|
|
230 nevents = 0;
|
|
|
231 }
|
|
|
232
|
|
|
233
|
|
|
234 static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
|
|
|
235 {
|
|
|
236 ngx_int_t rc;
|
|
|
237 ngx_event_t *e;
|
|
|
238 ngx_connection_t *c;
|
|
|
239
|
|
|
240 ev->active = 1;
|
|
|
241 ev->disabled = 0;
|
|
|
242 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
|
|
|
243
|
|
|
244 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
|
|
|
245 return NGX_ERROR;
|
|
|
246 }
|
|
|
247
|
|
4
|
248 #if 1
|
|
|
249
|
|
0
|
250 if (nchanges > 0
|
|
|
251 && ev->index < (u_int) nchanges
|
|
|
252 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
|
|
|
253 == (uintptr_t) ev)
|
|
|
254 {
|
|
|
255 if (change_list[ev->index].flags == EV_DISABLE) {
|
|
|
256
|
|
|
257 /*
|
|
|
258 * if the EV_DISABLE is still not passed to a kernel
|
|
|
259 * we will not pass it
|
|
|
260 */
|
|
|
261
|
|
|
262 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
|
263 "kevent activated: %d: ft:%d",
|
|
|
264 ngx_event_ident(ev->data), event);
|
|
|
265
|
|
|
266 if (ev->index < (u_int) --nchanges) {
|
|
4
|
267 e = (ngx_event_t *)
|
|
|
268 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
|
|
0
|
269 change_list[ev->index] = change_list[nchanges];
|
|
|
270 e->index = ev->index;
|
|
|
271 }
|
|
|
272
|
|
|
273 ngx_mutex_unlock(list_mutex);
|
|
|
274
|
|
|
275 return NGX_OK;
|
|
|
276 }
|
|
|
277
|
|
|
278 c = ev->data;
|
|
|
279
|
|
|
280 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
|
|
|
281 "previous event on #%d were not passed in kernel", c->fd);
|
|
|
282
|
|
|
283 ngx_mutex_unlock(list_mutex);
|
|
|
284
|
|
|
285 return NGX_ERROR;
|
|
|
286 }
|
|
|
287
|
|
4
|
288 #endif
|
|
|
289
|
|
0
|
290 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
|
|
|
291
|
|
|
292 ngx_mutex_unlock(list_mutex);
|
|
|
293
|
|
|
294 return rc;
|
|
|
295 }
|
|
|
296
|
|
|
297
|
|
|
298 static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
|
|
|
299 {
|
|
|
300 ngx_int_t rc;
|
|
|
301 ngx_event_t *e;
|
|
|
302
|
|
|
303 ev->active = 0;
|
|
|
304 ev->disabled = 0;
|
|
|
305
|
|
|
306 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
|
|
|
307 return NGX_ERROR;
|
|
|
308 }
|
|
|
309
|
|
4
|
310 #if 1
|
|
|
311
|
|
0
|
312 if (nchanges > 0
|
|
|
313 && ev->index < (u_int) nchanges
|
|
|
314 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
|
|
|
315 == (uintptr_t) ev)
|
|
|
316 {
|
|
|
317 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
|
318 "kevent deleted: %d: ft:%d",
|
|
|
319 ngx_event_ident(ev->data), event);
|
|
|
320
|
|
|
321 /* if the event is still not passed to a kernel we will not pass it */
|
|
|
322
|
|
|
323 if (ev->index < (u_int) --nchanges) {
|
|
4
|
324 e = (ngx_event_t *)
|
|
|
325 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
|
|
0
|
326 change_list[ev->index] = change_list[nchanges];
|
|
|
327 e->index = ev->index;
|
|
|
328 }
|
|
|
329
|
|
|
330 ngx_mutex_unlock(list_mutex);
|
|
|
331
|
|
|
332 return NGX_OK;
|
|
|
333 }
|
|
|
334
|
|
4
|
335 #endif
|
|
|
336
|
|
0
|
337 /*
|
|
|
338 * when the file descriptor is closed the kqueue automatically deletes
|
|
|
339 * its filters so we do not need to delete explicity the event
|
|
|
340 * before the closing the file descriptor.
|
|
|
341 */
|
|
|
342
|
|
|
343 if (flags & NGX_CLOSE_EVENT) {
|
|
|
344 ngx_mutex_unlock(list_mutex);
|
|
|
345 return NGX_OK;
|
|
|
346 }
|
|
|
347
|
|
|
348 if (flags & NGX_DISABLE_EVENT) {
|
|
|
349 ev->disabled = 1;
|
|
|
350 }
|
|
|
351
|
|
|
352 rc = ngx_kqueue_set_event(ev, event,
|
|
|
353 flags & NGX_DISABLE_EVENT ? EV_DISABLE : EV_DELETE);
|
|
|
354
|
|
|
355 ngx_mutex_unlock(list_mutex);
|
|
|
356
|
|
|
357 return rc;
|
|
|
358 }
|
|
|
359
|
|
|
360
|
|
|
361 static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
|
|
|
362 {
|
|
|
363 struct kevent *kev;
|
|
|
364 struct timespec ts;
|
|
|
365 ngx_connection_t *c;
|
|
|
366
|
|
|
367 c = ev->data;
|
|
|
368
|
|
|
369 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
10
|
370 "kevent set event: %d: ft:%d fl:%04Xd",
|
|
0
|
371 c->fd, filter, flags);
|
|
|
372
|
|
|
373 if (nchanges >= max_changes) {
|
|
|
374 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
|
375 "kqueue change list is filled up");
|
|
|
376
|
|
|
377 ts.tv_sec = 0;
|
|
|
378 ts.tv_nsec = 0;
|
|
|
379
|
|
|
380 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
|
|
|
381 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
|
382 return NGX_ERROR;
|
|
|
383 }
|
|
|
384
|
|
|
385 nchanges = 0;
|
|
|
386 }
|
|
|
387
|
|
|
388 kev = &change_list[nchanges];
|
|
|
389
|
|
|
390 kev->ident = c->fd;
|
|
|
391 kev->filter = filter;
|
|
|
392 kev->flags = flags;
|
|
|
393 kev->udata = (void *) ((uintptr_t) ev | ev->instance);
|
|
|
394
|
|
|
395 if (filter == EVFILT_VNODE) {
|
|
|
396 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
|
|
|
397 |NOTE_ATTRIB|NOTE_RENAME
|
|
|
398 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
|
|
|
399 || __FreeBSD_version >= 500018
|
|
|
400 |NOTE_REVOKE
|
|
|
401 #endif
|
|
|
402 ;
|
|
|
403 kev->data = 0;
|
|
|
404
|
|
|
405 } else {
|
|
4
|
406 #if (NGX_HAVE_LOWAT_EVENT)
|
|
0
|
407 if (flags & NGX_LOWAT_EVENT) {
|
|
|
408 kev->fflags = NOTE_LOWAT;
|
|
|
409 kev->data = ev->available;
|
|
|
410
|
|
|
411 } else {
|
|
|
412 kev->fflags = 0;
|
|
|
413 kev->data = 0;
|
|
|
414 }
|
|
|
415 #else
|
|
|
416 kev->fflags = 0;
|
|
|
417 kev->data = 0;
|
|
|
418 #endif
|
|
|
419 }
|
|
|
420
|
|
|
421 ev->index = nchanges;
|
|
|
422 nchanges++;
|
|
|
423
|
|
|
424 return NGX_OK;
|
|
|
425 }
|
|
|
426
|
|
|
427
|
|
|
428 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle)
|
|
|
429 {
|
|
|
430 int events, n;
|
|
|
431 ngx_int_t i, instance;
|
|
|
432 ngx_uint_t lock, accept_lock, expire;
|
|
|
433 ngx_err_t err;
|
|
|
434 ngx_msec_t timer;
|
|
|
435 ngx_event_t *ev;
|
|
|
436 ngx_epoch_msec_t delta;
|
|
|
437 struct timeval tv;
|
|
|
438 struct timespec ts, *tp;
|
|
|
439
|
|
|
440 for ( ;; ) {
|
|
|
441 timer = ngx_event_find_timer();
|
|
|
442
|
|
|
443 #if (NGX_THREADS)
|
|
|
444
|
|
|
445 if (timer == NGX_TIMER_ERROR) {
|
|
|
446 return NGX_ERROR;
|
|
|
447 }
|
|
|
448
|
|
|
449 if (timer == NGX_TIMER_INFINITE || timer > 500) {
|
|
|
450 timer = 500;
|
|
|
451 break;
|
|
|
452 }
|
|
|
453
|
|
|
454 #endif
|
|
|
455
|
|
|
456 if (timer != 0) {
|
|
|
457 break;
|
|
|
458 }
|
|
|
459
|
|
|
460 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
461 "kevent expired timer");
|
|
|
462
|
|
|
463 ngx_event_expire_timers((ngx_msec_t)
|
|
|
464 (ngx_elapsed_msec - ngx_old_elapsed_msec));
|
|
|
465
|
|
|
466 if (ngx_posted_events && ngx_threaded) {
|
|
|
467 ngx_wakeup_worker_thread(cycle);
|
|
|
468 }
|
|
|
469 }
|
|
|
470
|
|
|
471 ngx_old_elapsed_msec = ngx_elapsed_msec;
|
|
|
472 expire = 1;
|
|
|
473 accept_lock = 0;
|
|
|
474
|
|
|
475 if (ngx_accept_mutex) {
|
|
|
476 if (ngx_accept_disabled > 0) {
|
|
|
477 ngx_accept_disabled--;
|
|
|
478
|
|
|
479 } else {
|
|
|
480 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
|
|
|
481 return NGX_ERROR;
|
|
|
482 }
|
|
|
483
|
|
|
484 if (ngx_accept_mutex_held) {
|
|
|
485 accept_lock = 1;
|
|
|
486
|
|
|
487 } else if (timer == NGX_TIMER_INFINITE
|
|
|
488 || timer > ngx_accept_mutex_delay)
|
|
|
489 {
|
|
|
490 timer = ngx_accept_mutex_delay;
|
|
|
491 expire = 0;
|
|
|
492 }
|
|
|
493 }
|
|
|
494 }
|
|
|
495
|
|
|
496 if (ngx_threaded) {
|
|
|
497 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
|
498 ngx_accept_mutex_unlock();
|
|
|
499 return NGX_ERROR;
|
|
|
500 }
|
|
|
501
|
|
|
502 n = 0;
|
|
|
503
|
|
|
504 } else {
|
|
|
505 n = nchanges;
|
|
|
506 nchanges = 0;
|
|
|
507 }
|
|
|
508
|
|
|
509 if (timer == NGX_TIMER_INFINITE) {
|
|
|
510 tp = NULL;
|
|
|
511 expire = 0;
|
|
|
512
|
|
|
513 } else {
|
|
|
514 ts.tv_sec = timer / 1000;
|
|
|
515 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
|
516 tp = &ts;
|
|
|
517 }
|
|
|
518
|
|
|
519 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
520 "kevent timer: %d, changes: %d", timer, n);
|
|
|
521
|
|
|
522 events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
|
|
|
523
|
|
|
524 if (events == -1) {
|
|
|
525 err = ngx_errno;
|
|
|
526 } else {
|
|
|
527 err = 0;
|
|
|
528 }
|
|
|
529
|
|
|
530 ngx_gettimeofday(&tv);
|
|
|
531 ngx_time_update(tv.tv_sec);
|
|
|
532
|
|
|
533 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
534 "kevent events: %d", events);
|
|
|
535
|
|
|
536 delta = ngx_elapsed_msec;
|
|
|
537 ngx_elapsed_msec = (ngx_epoch_msec_t) tv.tv_sec * 1000
|
|
|
538 + tv.tv_usec / 1000 - ngx_start_msec;
|
|
|
539
|
|
|
540 if (err) {
|
|
|
541 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
542 cycle->log, err, "kevent() failed");
|
|
|
543 ngx_accept_mutex_unlock();
|
|
|
544 return NGX_ERROR;
|
|
|
545 }
|
|
|
546
|
|
|
547 if (timer != NGX_TIMER_INFINITE) {
|
|
|
548 delta = ngx_elapsed_msec - delta;
|
|
|
549
|
|
|
550 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
551 "kevent timer: %d, delta: %d", timer, (int) delta);
|
|
|
552
|
|
|
553 } else {
|
|
|
554 if (events == 0) {
|
|
|
555 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
556 "kevent() returned no events without timeout");
|
|
|
557 ngx_accept_mutex_unlock();
|
|
|
558 return NGX_ERROR;
|
|
|
559 }
|
|
|
560 }
|
|
|
561
|
|
|
562 if (events > 0) {
|
|
|
563 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
564 ngx_accept_mutex_unlock();
|
|
|
565 return NGX_ERROR;
|
|
|
566 }
|
|
|
567
|
|
|
568 lock = 1;
|
|
|
569
|
|
|
570 } else {
|
|
|
571 lock =0;
|
|
|
572 }
|
|
|
573
|
|
|
574 for (i = 0; i < events; i++) {
|
|
|
575
|
|
|
576 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
|
577
|
|
|
578 if (event_list[i].flags & EV_ERROR) {
|
|
|
579 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
|
580 "kevent() error on %d", event_list[i].ident);
|
|
|
581 continue;
|
|
|
582 }
|
|
|
583
|
|
|
584 ev = (ngx_event_t *) event_list[i].udata;
|
|
|
585
|
|
|
586 switch (event_list[i].filter) {
|
|
|
587
|
|
|
588 case EVFILT_READ:
|
|
|
589 case EVFILT_WRITE:
|
|
|
590
|
|
|
591 instance = (uintptr_t) ev & 1;
|
|
|
592 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
|
593
|
|
|
594 if (ev->closed || ev->instance != instance) {
|
|
|
595
|
|
|
596 /*
|
|
|
597 * the stale event from a file descriptor
|
|
|
598 * that was just closed in this iteration
|
|
|
599 */
|
|
|
600
|
|
|
601 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
602 "kevent: stale event %p", ev);
|
|
0
|
603 continue;
|
|
|
604 }
|
|
|
605
|
|
|
606 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
607 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
|
608 }
|
|
|
609
|
|
|
610 #if (NGX_THREADS)
|
|
|
611
|
|
|
612 if (ngx_threaded && !ev->accept) {
|
|
|
613 ev->posted_ready = 1;
|
|
|
614 ev->posted_available = event_list[i].data;
|
|
|
615
|
|
|
616 if (event_list[i].flags & EV_EOF) {
|
|
|
617 ev->posted_eof = 1;
|
|
|
618 ev->posted_errno = event_list[i].fflags;
|
|
|
619 }
|
|
|
620
|
|
|
621 ngx_post_event(ev);
|
|
|
622
|
|
|
623 continue;
|
|
|
624 }
|
|
|
625
|
|
|
626 #endif
|
|
|
627
|
|
|
628 ev->available = event_list[i].data;
|
|
|
629
|
|
|
630 if (event_list[i].flags & EV_EOF) {
|
|
|
631 ev->pending_eof = 1;
|
|
|
632 ev->kq_errno = event_list[i].fflags;
|
|
|
633 }
|
|
|
634
|
|
|
635 ev->ready = 1;
|
|
|
636
|
|
|
637 break;
|
|
|
638
|
|
|
639 case EVFILT_VNODE:
|
|
|
640 ev->kq_vnode = 1;
|
|
|
641
|
|
|
642 break;
|
|
|
643
|
|
|
644 case EVFILT_AIO:
|
|
|
645 ev->complete = 1;
|
|
|
646 ev->ready = 1;
|
|
|
647
|
|
|
648 break;
|
|
|
649
|
|
|
650 default:
|
|
|
651 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
652 "unexpected kevent() filter %d",
|
|
|
653 event_list[i].filter);
|
|
|
654 continue;
|
|
|
655 }
|
|
|
656
|
|
|
657 if (!ngx_threaded && !ngx_accept_mutex_held) {
|
|
|
658 ev->event_handler(ev);
|
|
|
659 continue;
|
|
|
660 }
|
|
|
661
|
|
|
662 if (!ev->accept) {
|
|
|
663 ngx_post_event(ev);
|
|
|
664 continue;
|
|
|
665 }
|
|
|
666
|
|
|
667 if (ngx_accept_disabled > 0) {
|
|
|
668 continue;
|
|
|
669 }
|
|
|
670
|
|
|
671 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
672
|
|
|
673 ev->event_handler(ev);
|
|
|
674
|
|
|
675 if (ngx_accept_disabled > 0) {
|
|
|
676 ngx_accept_mutex_unlock();
|
|
|
677 accept_lock = 0;
|
|
|
678 }
|
|
|
679
|
|
|
680 if (i + 1 == events) {
|
|
|
681 lock = 0;
|
|
|
682 break;
|
|
|
683 }
|
|
|
684
|
|
|
685 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
686 if (accept_lock) {
|
|
|
687 ngx_accept_mutex_unlock();
|
|
|
688 }
|
|
|
689 return NGX_ERROR;
|
|
|
690 }
|
|
|
691 }
|
|
|
692
|
|
|
693 if (accept_lock) {
|
|
|
694 ngx_accept_mutex_unlock();
|
|
|
695 }
|
|
|
696
|
|
|
697 if (lock) {
|
|
|
698 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
699 }
|
|
|
700
|
|
|
701 if (expire && delta) {
|
|
|
702 ngx_event_expire_timers((ngx_msec_t) delta);
|
|
|
703 }
|
|
|
704
|
|
|
705 if (ngx_posted_events) {
|
|
|
706 if (ngx_threaded) {
|
|
|
707 ngx_wakeup_worker_thread(cycle);
|
|
|
708
|
|
|
709 } else {
|
|
|
710 ngx_event_process_posted(cycle);
|
|
|
711 }
|
|
|
712 }
|
|
|
713
|
|
|
714 return NGX_OK;
|
|
|
715 }
|
|
|
716
|
|
|
717
|
|
|
718 static ngx_int_t ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
|
|
719 {
|
|
|
720 int n;
|
|
|
721 ngx_int_t rc;
|
|
|
722 ngx_err_t err;
|
|
|
723 struct timespec ts;
|
|
|
724 struct kevent *changes;
|
|
|
725
|
|
|
726 if (ngx_mutex_lock(kevent_mutex) == NGX_ERROR) {
|
|
|
727 return NGX_ERROR;
|
|
|
728 }
|
|
|
729
|
|
|
730 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
|
|
|
731 ngx_mutex_unlock(kevent_mutex);
|
|
|
732 return NGX_ERROR;
|
|
|
733 }
|
|
|
734
|
|
|
735 if (nchanges == 0) {
|
|
|
736 ngx_mutex_unlock(list_mutex);
|
|
|
737 ngx_mutex_unlock(kevent_mutex);
|
|
|
738 return NGX_OK;
|
|
|
739 }
|
|
|
740
|
|
|
741 changes = change_list;
|
|
|
742 if (change_list == change_list0) {
|
|
|
743 change_list = change_list1;
|
|
|
744 } else {
|
|
|
745 change_list = change_list0;
|
|
|
746 }
|
|
|
747
|
|
|
748 n = nchanges;
|
|
|
749 nchanges = 0;
|
|
|
750
|
|
|
751 ngx_mutex_unlock(list_mutex);
|
|
|
752
|
|
|
753 ts.tv_sec = 0;
|
|
|
754 ts.tv_nsec = 0;
|
|
|
755
|
|
|
756 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
757 "kevent changes: %d", n);
|
|
|
758
|
|
|
759 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
|
760 err = ngx_errno;
|
|
|
761 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
762 cycle->log, err, "kevent() failed");
|
|
|
763 rc = NGX_ERROR;
|
|
|
764
|
|
|
765 } else {
|
|
|
766 rc = NGX_OK;
|
|
|
767 }
|
|
|
768
|
|
|
769 ngx_mutex_unlock(kevent_mutex);
|
|
|
770
|
|
|
771 return rc;
|
|
|
772 }
|
|
|
773
|
|
|
774
|
|
|
775 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
|
|
776 {
|
|
|
777 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
|
778 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
|
10
|
779 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
|
780 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
|
0
|
781 kev->ident, kev->filter,
|
|
|
782 kev->flags, kev->fflags,
|
|
|
783 kev->data, kev->udata);
|
|
|
784 }
|
|
|
785
|
|
|
786
|
|
|
787 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
|
|
788 {
|
|
|
789 ngx_kqueue_conf_t *kcf;
|
|
|
790
|
|
|
791 ngx_test_null(kcf, ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t)),
|
|
|
792 NGX_CONF_ERROR);
|
|
|
793
|
|
|
794 kcf->changes = NGX_CONF_UNSET;
|
|
|
795 kcf->events = NGX_CONF_UNSET;
|
|
|
796
|
|
|
797 return kcf;
|
|
|
798 }
|
|
|
799
|
|
|
800
|
|
|
801 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
802 {
|
|
|
803 ngx_kqueue_conf_t *kcf = conf;
|
|
|
804
|
|
|
805 ngx_conf_init_value(kcf->changes, 512);
|
|
|
806 ngx_conf_init_value(kcf->events, 512);
|
|
|
807
|
|
|
808 return NGX_CONF_OK;
|
|
|
809 }
|
