|
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,
|
|
48
|
27 struct kevent *kev);
|
|
0
|
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
|
|
48
|
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 },
|
|
0
|
64
|
|
48
|
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 },
|
|
0
|
71
|
|
48
|
72 ngx_null_command
|
|
0
|
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 = {
|
|
58
|
97 NGX_MODULE_V1,
|
|
0
|
98 &ngx_kqueue_module_ctx, /* module context */
|
|
|
99 ngx_kqueue_commands, /* module directives */
|
|
|
100 NGX_EVENT_MODULE, /* module type */
|
|
90
|
101 NULL, /* init master */
|
|
0
|
102 NULL, /* init module */
|
|
90
|
103 NULL, /* init process */
|
|
|
104 NULL, /* init thread */
|
|
|
105 NULL, /* exit thread */
|
|
|
106 NULL, /* exit process */
|
|
|
107 NULL, /* exit master */
|
|
|
108 NGX_MODULE_V1_PADDING
|
|
0
|
109 };
|
|
|
110
|
|
|
111
|
|
|
112
|
|
48
|
113 static ngx_int_t
|
|
|
114 ngx_kqueue_init(ngx_cycle_t *cycle)
|
|
0
|
115 {
|
|
|
116 struct timespec ts;
|
|
|
117 ngx_kqueue_conf_t *kcf;
|
|
|
118
|
|
|
119 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
|
|
|
120
|
|
|
121 if (ngx_kqueue == -1) {
|
|
|
122 ngx_kqueue = kqueue();
|
|
|
123
|
|
|
124 if (ngx_kqueue == -1) {
|
|
|
125 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
126 "kqueue() failed");
|
|
|
127 return NGX_ERROR;
|
|
|
128 }
|
|
|
129
|
|
|
130 #if (NGX_THREADS)
|
|
|
131
|
|
50
|
132 list_mutex = ngx_mutex_init(cycle->log, 0);
|
|
|
133 if (list_mutex == NULL) {
|
|
0
|
134 return NGX_ERROR;
|
|
|
135 }
|
|
|
136
|
|
50
|
137 kevent_mutex = ngx_mutex_init(cycle->log, 0);
|
|
|
138 if (kevent_mutex == NULL) {
|
|
0
|
139 return NGX_ERROR;
|
|
|
140 }
|
|
|
141
|
|
|
142 #endif
|
|
|
143 }
|
|
|
144
|
|
|
145 if (max_changes < kcf->changes) {
|
|
|
146 if (nchanges) {
|
|
|
147 ts.tv_sec = 0;
|
|
|
148 ts.tv_nsec = 0;
|
|
|
149
|
|
|
150 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
|
|
|
151 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
152 "kevent() failed");
|
|
|
153 return NGX_ERROR;
|
|
|
154 }
|
|
|
155 nchanges = 0;
|
|
|
156 }
|
|
|
157
|
|
|
158 if (change_list0) {
|
|
|
159 ngx_free(change_list0);
|
|
|
160 }
|
|
|
161
|
|
|
162 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
|
|
|
163 cycle->log);
|
|
|
164 if (change_list0 == NULL) {
|
|
|
165 return NGX_ERROR;
|
|
|
166 }
|
|
|
167
|
|
|
168 if (change_list1) {
|
|
|
169 ngx_free(change_list1);
|
|
|
170 }
|
|
|
171
|
|
|
172 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
|
|
|
173 cycle->log);
|
|
|
174 if (change_list1 == NULL) {
|
|
|
175 return NGX_ERROR;
|
|
|
176 }
|
|
|
177
|
|
|
178 change_list = change_list0;
|
|
|
179 }
|
|
|
180
|
|
|
181 max_changes = kcf->changes;
|
|
|
182
|
|
|
183 if (nevents < kcf->events) {
|
|
|
184 if (event_list) {
|
|
|
185 ngx_free(event_list);
|
|
|
186 }
|
|
|
187
|
|
|
188 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
|
|
|
189 if (event_list == NULL) {
|
|
|
190 return NGX_ERROR;
|
|
|
191 }
|
|
|
192 }
|
|
|
193
|
|
|
194 nevents = kcf->events;
|
|
|
195
|
|
|
196 ngx_io = ngx_os_io;
|
|
|
197
|
|
|
198 ngx_event_actions = ngx_kqueue_module_ctx.actions;
|
|
|
199
|
|
|
200 ngx_event_flags = NGX_USE_ONESHOT_EVENT
|
|
58
|
201 #if 1
|
|
18
|
202 #if (NGX_HAVE_CLEAR_EVENT)
|
|
0
|
203 |NGX_USE_CLEAR_EVENT
|
|
|
204 #else
|
|
|
205 |NGX_USE_LEVEL_EVENT
|
|
|
206 #endif
|
|
58
|
207 #endif
|
|
4
|
208 #if (NGX_HAVE_LOWAT_EVENT)
|
|
|
209 |NGX_USE_LOWAT_EVENT
|
|
0
|
210 #endif
|
|
4
|
211 |NGX_USE_KQUEUE_EVENT;
|
|
0
|
212
|
|
|
213 return NGX_OK;
|
|
|
214 }
|
|
|
215
|
|
|
216
|
|
48
|
217 static void
|
|
|
218 ngx_kqueue_done(ngx_cycle_t *cycle)
|
|
0
|
219 {
|
|
|
220 if (close(ngx_kqueue) == -1) {
|
|
|
221 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
222 "kqueue close() failed");
|
|
|
223 }
|
|
|
224
|
|
|
225 ngx_kqueue = -1;
|
|
|
226
|
|
|
227 #if (NGX_THREADS)
|
|
|
228 ngx_mutex_destroy(kevent_mutex);
|
|
|
229 ngx_mutex_destroy(list_mutex);
|
|
|
230 #endif
|
|
|
231
|
|
|
232 ngx_free(change_list1);
|
|
|
233 ngx_free(change_list0);
|
|
|
234 ngx_free(event_list);
|
|
|
235
|
|
|
236 change_list1 = NULL;
|
|
|
237 change_list0 = NULL;
|
|
|
238 change_list = NULL;
|
|
|
239 event_list = NULL;
|
|
|
240 max_changes = 0;
|
|
|
241 nchanges = 0;
|
|
|
242 nevents = 0;
|
|
|
243 }
|
|
|
244
|
|
|
245
|
|
48
|
246 static ngx_int_t
|
|
|
247 ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
|
|
0
|
248 {
|
|
|
249 ngx_int_t rc;
|
|
|
250 ngx_event_t *e;
|
|
|
251 ngx_connection_t *c;
|
|
|
252
|
|
|
253 ev->active = 1;
|
|
|
254 ev->disabled = 0;
|
|
|
255 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
|
|
|
256
|
|
|
257 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
|
|
|
258 return NGX_ERROR;
|
|
|
259 }
|
|
|
260
|
|
4
|
261 #if 1
|
|
|
262
|
|
0
|
263 if (nchanges > 0
|
|
|
264 && ev->index < (u_int) nchanges
|
|
|
265 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
|
|
|
266 == (uintptr_t) ev)
|
|
|
267 {
|
|
|
268 if (change_list[ev->index].flags == EV_DISABLE) {
|
|
|
269
|
|
|
270 /*
|
|
|
271 * if the EV_DISABLE is still not passed to a kernel
|
|
|
272 * we will not pass it
|
|
|
273 */
|
|
|
274
|
|
|
275 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
|
276 "kevent activated: %d: ft:%d",
|
|
|
277 ngx_event_ident(ev->data), event);
|
|
|
278
|
|
|
279 if (ev->index < (u_int) --nchanges) {
|
|
4
|
280 e = (ngx_event_t *)
|
|
|
281 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
|
|
0
|
282 change_list[ev->index] = change_list[nchanges];
|
|
|
283 e->index = ev->index;
|
|
|
284 }
|
|
|
285
|
|
|
286 ngx_mutex_unlock(list_mutex);
|
|
|
287
|
|
|
288 return NGX_OK;
|
|
|
289 }
|
|
|
290
|
|
|
291 c = ev->data;
|
|
|
292
|
|
|
293 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
|
|
|
294 "previous event on #%d were not passed in kernel", c->fd);
|
|
|
295
|
|
|
296 ngx_mutex_unlock(list_mutex);
|
|
|
297
|
|
|
298 return NGX_ERROR;
|
|
|
299 }
|
|
|
300
|
|
4
|
301 #endif
|
|
|
302
|
|
0
|
303 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
|
|
|
304
|
|
|
305 ngx_mutex_unlock(list_mutex);
|
|
|
306
|
|
|
307 return rc;
|
|
|
308 }
|
|
|
309
|
|
|
310
|
|
48
|
311 static ngx_int_t
|
|
|
312 ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
|
|
0
|
313 {
|
|
|
314 ngx_int_t rc;
|
|
|
315 ngx_event_t *e;
|
|
|
316
|
|
|
317 ev->active = 0;
|
|
|
318 ev->disabled = 0;
|
|
|
319
|
|
|
320 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
|
|
|
321 return NGX_ERROR;
|
|
|
322 }
|
|
|
323
|
|
4
|
324 #if 1
|
|
|
325
|
|
0
|
326 if (nchanges > 0
|
|
|
327 && ev->index < (u_int) nchanges
|
|
|
328 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
|
|
|
329 == (uintptr_t) ev)
|
|
|
330 {
|
|
|
331 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
|
332 "kevent deleted: %d: ft:%d",
|
|
|
333 ngx_event_ident(ev->data), event);
|
|
|
334
|
|
|
335 /* if the event is still not passed to a kernel we will not pass it */
|
|
|
336
|
|
|
337 if (ev->index < (u_int) --nchanges) {
|
|
4
|
338 e = (ngx_event_t *)
|
|
|
339 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
|
|
0
|
340 change_list[ev->index] = change_list[nchanges];
|
|
|
341 e->index = ev->index;
|
|
|
342 }
|
|
|
343
|
|
|
344 ngx_mutex_unlock(list_mutex);
|
|
|
345
|
|
|
346 return NGX_OK;
|
|
|
347 }
|
|
|
348
|
|
4
|
349 #endif
|
|
|
350
|
|
0
|
351 /*
|
|
|
352 * when the file descriptor is closed the kqueue automatically deletes
|
|
|
353 * its filters so we do not need to delete explicity the event
|
|
|
354 * before the closing the file descriptor.
|
|
|
355 */
|
|
|
356
|
|
|
357 if (flags & NGX_CLOSE_EVENT) {
|
|
|
358 ngx_mutex_unlock(list_mutex);
|
|
|
359 return NGX_OK;
|
|
|
360 }
|
|
|
361
|
|
|
362 if (flags & NGX_DISABLE_EVENT) {
|
|
|
363 ev->disabled = 1;
|
|
|
364 }
|
|
|
365
|
|
|
366 rc = ngx_kqueue_set_event(ev, event,
|
|
|
367 flags & NGX_DISABLE_EVENT ? EV_DISABLE : EV_DELETE);
|
|
|
368
|
|
|
369 ngx_mutex_unlock(list_mutex);
|
|
|
370
|
|
|
371 return rc;
|
|
|
372 }
|
|
|
373
|
|
|
374
|
|
48
|
375 static ngx_int_t
|
|
|
376 ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
|
|
0
|
377 {
|
|
|
378 struct kevent *kev;
|
|
|
379 struct timespec ts;
|
|
|
380 ngx_connection_t *c;
|
|
|
381
|
|
|
382 c = ev->data;
|
|
|
383
|
|
|
384 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
10
|
385 "kevent set event: %d: ft:%d fl:%04Xd",
|
|
0
|
386 c->fd, filter, flags);
|
|
|
387
|
|
|
388 if (nchanges >= max_changes) {
|
|
|
389 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
|
390 "kqueue change list is filled up");
|
|
|
391
|
|
|
392 ts.tv_sec = 0;
|
|
|
393 ts.tv_nsec = 0;
|
|
|
394
|
|
|
395 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
|
|
|
396 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
|
397 return NGX_ERROR;
|
|
|
398 }
|
|
|
399
|
|
|
400 nchanges = 0;
|
|
|
401 }
|
|
|
402
|
|
|
403 kev = &change_list[nchanges];
|
|
|
404
|
|
|
405 kev->ident = c->fd;
|
|
|
406 kev->filter = filter;
|
|
|
407 kev->flags = flags;
|
|
38
|
408 kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
|
|
0
|
409
|
|
|
410 if (filter == EVFILT_VNODE) {
|
|
|
411 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
|
|
|
412 |NOTE_ATTRIB|NOTE_RENAME
|
|
|
413 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
|
|
|
414 || __FreeBSD_version >= 500018
|
|
|
415 |NOTE_REVOKE
|
|
|
416 #endif
|
|
|
417 ;
|
|
|
418 kev->data = 0;
|
|
|
419
|
|
|
420 } else {
|
|
4
|
421 #if (NGX_HAVE_LOWAT_EVENT)
|
|
0
|
422 if (flags & NGX_LOWAT_EVENT) {
|
|
|
423 kev->fflags = NOTE_LOWAT;
|
|
|
424 kev->data = ev->available;
|
|
|
425
|
|
|
426 } else {
|
|
|
427 kev->fflags = 0;
|
|
|
428 kev->data = 0;
|
|
|
429 }
|
|
|
430 #else
|
|
|
431 kev->fflags = 0;
|
|
|
432 kev->data = 0;
|
|
|
433 #endif
|
|
|
434 }
|
|
|
435
|
|
|
436 ev->index = nchanges;
|
|
|
437 nchanges++;
|
|
|
438
|
|
|
439 return NGX_OK;
|
|
|
440 }
|
|
|
441
|
|
|
442
|
|
48
|
443 static ngx_int_t
|
|
|
444 ngx_kqueue_process_events(ngx_cycle_t *cycle)
|
|
0
|
445 {
|
|
|
446 int events, n;
|
|
|
447 ngx_int_t i, instance;
|
|
106
|
448 ngx_uint_t lock, accept_lock;
|
|
0
|
449 ngx_err_t err;
|
|
106
|
450 ngx_msec_t timer, delta;
|
|
0
|
451 ngx_event_t *ev;
|
|
|
452 struct timeval tv;
|
|
|
453 struct timespec ts, *tp;
|
|
|
454
|
|
106
|
455 timer = ngx_event_find_timer();
|
|
0
|
456
|
|
|
457 #if (NGX_THREADS)
|
|
|
458
|
|
106
|
459 if (timer == NGX_TIMER_ERROR) {
|
|
|
460 return NGX_ERROR;
|
|
|
461 }
|
|
0
|
462
|
|
106
|
463 if (timer == NGX_TIMER_INFINITE || timer > 500) {
|
|
|
464 timer = 500;
|
|
|
465 }
|
|
0
|
466
|
|
|
467 #endif
|
|
|
468
|
|
|
469 accept_lock = 0;
|
|
|
470
|
|
|
471 if (ngx_accept_mutex) {
|
|
|
472 if (ngx_accept_disabled > 0) {
|
|
|
473 ngx_accept_disabled--;
|
|
|
474
|
|
|
475 } else {
|
|
|
476 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
|
|
|
477 return NGX_ERROR;
|
|
|
478 }
|
|
|
479
|
|
|
480 if (ngx_accept_mutex_held) {
|
|
|
481 accept_lock = 1;
|
|
|
482
|
|
|
483 } else if (timer == NGX_TIMER_INFINITE
|
|
|
484 || timer > ngx_accept_mutex_delay)
|
|
|
485 {
|
|
|
486 timer = ngx_accept_mutex_delay;
|
|
|
487 }
|
|
|
488 }
|
|
|
489 }
|
|
|
490
|
|
|
491 if (ngx_threaded) {
|
|
|
492 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
|
493 ngx_accept_mutex_unlock();
|
|
|
494 return NGX_ERROR;
|
|
|
495 }
|
|
|
496
|
|
|
497 n = 0;
|
|
|
498
|
|
|
499 } else {
|
|
|
500 n = nchanges;
|
|
|
501 nchanges = 0;
|
|
|
502 }
|
|
|
503
|
|
|
504 if (timer == NGX_TIMER_INFINITE) {
|
|
|
505 tp = NULL;
|
|
|
506
|
|
|
507 } else {
|
|
|
508 ts.tv_sec = timer / 1000;
|
|
|
509 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
|
510 tp = &ts;
|
|
|
511 }
|
|
|
512
|
|
|
513 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
110
|
514 "kevent timer: %M, changes: %d", timer, n);
|
|
0
|
515
|
|
|
516 events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
|
|
|
517
|
|
|
518 if (events == -1) {
|
|
|
519 err = ngx_errno;
|
|
|
520 } else {
|
|
|
521 err = 0;
|
|
|
522 }
|
|
|
523
|
|
|
524 ngx_gettimeofday(&tv);
|
|
|
525 ngx_time_update(tv.tv_sec);
|
|
|
526
|
|
|
527 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
528 "kevent events: %d", events);
|
|
|
529
|
|
106
|
530 delta = ngx_current_time;
|
|
|
531 ngx_current_time = (ngx_msec_t) tv.tv_sec * 1000 + tv.tv_usec / 1000;
|
|
0
|
532
|
|
|
533 if (err) {
|
|
|
534 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
535 cycle->log, err, "kevent() failed");
|
|
|
536 ngx_accept_mutex_unlock();
|
|
|
537 return NGX_ERROR;
|
|
|
538 }
|
|
|
539
|
|
|
540 if (timer != NGX_TIMER_INFINITE) {
|
|
106
|
541 delta = ngx_current_time - delta;
|
|
0
|
542
|
|
|
543 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
106
|
544 "kevent timer: %M, delta: %M", timer, delta);
|
|
0
|
545
|
|
|
546 } else {
|
|
|
547 if (events == 0) {
|
|
|
548 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
549 "kevent() returned no events without timeout");
|
|
|
550 ngx_accept_mutex_unlock();
|
|
|
551 return NGX_ERROR;
|
|
|
552 }
|
|
|
553 }
|
|
|
554
|
|
|
555 if (events > 0) {
|
|
|
556 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
557 ngx_accept_mutex_unlock();
|
|
|
558 return NGX_ERROR;
|
|
|
559 }
|
|
|
560
|
|
|
561 lock = 1;
|
|
|
562
|
|
|
563 } else {
|
|
|
564 lock =0;
|
|
|
565 }
|
|
|
566
|
|
|
567 for (i = 0; i < events; i++) {
|
|
|
568
|
|
|
569 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
|
570
|
|
|
571 if (event_list[i].flags & EV_ERROR) {
|
|
|
572 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
|
573 "kevent() error on %d", event_list[i].ident);
|
|
|
574 continue;
|
|
|
575 }
|
|
|
576
|
|
|
577 ev = (ngx_event_t *) event_list[i].udata;
|
|
|
578
|
|
|
579 switch (event_list[i].filter) {
|
|
|
580
|
|
|
581 case EVFILT_READ:
|
|
|
582 case EVFILT_WRITE:
|
|
|
583
|
|
|
584 instance = (uintptr_t) ev & 1;
|
|
|
585 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
|
586
|
|
|
587 if (ev->closed || ev->instance != instance) {
|
|
|
588
|
|
|
589 /*
|
|
|
590 * the stale event from a file descriptor
|
|
|
591 * that was just closed in this iteration
|
|
|
592 */
|
|
|
593
|
|
|
594 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
595 "kevent: stale event %p", ev);
|
|
0
|
596 continue;
|
|
|
597 }
|
|
|
598
|
|
|
599 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
600 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
|
601 }
|
|
|
602
|
|
58
|
603 if (ev->oneshot) {
|
|
|
604 ev->active = 0;
|
|
|
605 }
|
|
|
606
|
|
0
|
607 #if (NGX_THREADS)
|
|
|
608
|
|
|
609 if (ngx_threaded && !ev->accept) {
|
|
|
610 ev->posted_ready = 1;
|
|
|
611 ev->posted_available = event_list[i].data;
|
|
|
612
|
|
|
613 if (event_list[i].flags & EV_EOF) {
|
|
|
614 ev->posted_eof = 1;
|
|
|
615 ev->posted_errno = event_list[i].fflags;
|
|
|
616 }
|
|
|
617
|
|
|
618 ngx_post_event(ev);
|
|
|
619
|
|
|
620 continue;
|
|
|
621 }
|
|
|
622
|
|
|
623 #endif
|
|
|
624
|
|
|
625 ev->available = event_list[i].data;
|
|
|
626
|
|
|
627 if (event_list[i].flags & EV_EOF) {
|
|
|
628 ev->pending_eof = 1;
|
|
|
629 ev->kq_errno = event_list[i].fflags;
|
|
|
630 }
|
|
|
631
|
|
|
632 ev->ready = 1;
|
|
|
633
|
|
|
634 break;
|
|
|
635
|
|
|
636 case EVFILT_VNODE:
|
|
|
637 ev->kq_vnode = 1;
|
|
|
638
|
|
|
639 break;
|
|
|
640
|
|
|
641 case EVFILT_AIO:
|
|
|
642 ev->complete = 1;
|
|
|
643 ev->ready = 1;
|
|
|
644
|
|
|
645 break;
|
|
|
646
|
|
|
647 default:
|
|
|
648 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
649 "unexpected kevent() filter %d",
|
|
|
650 event_list[i].filter);
|
|
|
651 continue;
|
|
|
652 }
|
|
|
653
|
|
|
654 if (!ngx_threaded && !ngx_accept_mutex_held) {
|
|
58
|
655 ev->handler(ev);
|
|
0
|
656 continue;
|
|
|
657 }
|
|
|
658
|
|
|
659 if (!ev->accept) {
|
|
|
660 ngx_post_event(ev);
|
|
|
661 continue;
|
|
|
662 }
|
|
|
663
|
|
|
664 if (ngx_accept_disabled > 0) {
|
|
|
665 continue;
|
|
|
666 }
|
|
|
667
|
|
|
668 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
669
|
|
58
|
670 ev->handler(ev);
|
|
0
|
671
|
|
|
672 if (ngx_accept_disabled > 0) {
|
|
|
673 ngx_accept_mutex_unlock();
|
|
|
674 accept_lock = 0;
|
|
|
675 }
|
|
|
676
|
|
|
677 if (i + 1 == events) {
|
|
|
678 lock = 0;
|
|
|
679 break;
|
|
|
680 }
|
|
|
681
|
|
|
682 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
683 if (accept_lock) {
|
|
|
684 ngx_accept_mutex_unlock();
|
|
|
685 }
|
|
|
686 return NGX_ERROR;
|
|
|
687 }
|
|
|
688 }
|
|
|
689
|
|
|
690 if (accept_lock) {
|
|
|
691 ngx_accept_mutex_unlock();
|
|
|
692 }
|
|
|
693
|
|
|
694 if (lock) {
|
|
|
695 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
696 }
|
|
|
697
|
|
106
|
698 ngx_event_expire_timers();
|
|
0
|
699
|
|
|
700 if (ngx_posted_events) {
|
|
|
701 if (ngx_threaded) {
|
|
|
702 ngx_wakeup_worker_thread(cycle);
|
|
|
703
|
|
|
704 } else {
|
|
|
705 ngx_event_process_posted(cycle);
|
|
|
706 }
|
|
|
707 }
|
|
|
708
|
|
|
709 return NGX_OK;
|
|
|
710 }
|
|
|
711
|
|
|
712
|
|
48
|
713 static ngx_int_t
|
|
|
714 ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
|
0
|
715 {
|
|
|
716 int n;
|
|
|
717 ngx_int_t rc;
|
|
|
718 ngx_err_t err;
|
|
|
719 struct timespec ts;
|
|
|
720 struct kevent *changes;
|
|
|
721
|
|
|
722 if (ngx_mutex_lock(kevent_mutex) == NGX_ERROR) {
|
|
|
723 return NGX_ERROR;
|
|
|
724 }
|
|
|
725
|
|
|
726 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
|
|
|
727 ngx_mutex_unlock(kevent_mutex);
|
|
|
728 return NGX_ERROR;
|
|
|
729 }
|
|
|
730
|
|
|
731 if (nchanges == 0) {
|
|
|
732 ngx_mutex_unlock(list_mutex);
|
|
|
733 ngx_mutex_unlock(kevent_mutex);
|
|
|
734 return NGX_OK;
|
|
|
735 }
|
|
|
736
|
|
|
737 changes = change_list;
|
|
|
738 if (change_list == change_list0) {
|
|
|
739 change_list = change_list1;
|
|
|
740 } else {
|
|
|
741 change_list = change_list0;
|
|
|
742 }
|
|
|
743
|
|
|
744 n = nchanges;
|
|
|
745 nchanges = 0;
|
|
|
746
|
|
|
747 ngx_mutex_unlock(list_mutex);
|
|
|
748
|
|
|
749 ts.tv_sec = 0;
|
|
|
750 ts.tv_nsec = 0;
|
|
|
751
|
|
|
752 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
753 "kevent changes: %d", n);
|
|
|
754
|
|
|
755 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
|
756 err = ngx_errno;
|
|
|
757 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
758 cycle->log, err, "kevent() failed");
|
|
|
759 rc = NGX_ERROR;
|
|
|
760
|
|
|
761 } else {
|
|
|
762 rc = NGX_OK;
|
|
|
763 }
|
|
|
764
|
|
|
765 ngx_mutex_unlock(kevent_mutex);
|
|
|
766
|
|
|
767 return rc;
|
|
|
768 }
|
|
|
769
|
|
|
770
|
|
48
|
771 static ngx_inline void
|
|
|
772 ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
|
0
|
773 {
|
|
|
774 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
|
775 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
|
10
|
776 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
|
777 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
|
0
|
778 kev->ident, kev->filter,
|
|
|
779 kev->flags, kev->fflags,
|
|
|
780 kev->data, kev->udata);
|
|
|
781 }
|
|
|
782
|
|
|
783
|
|
48
|
784 static void *
|
|
|
785 ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
|
0
|
786 {
|
|
|
787 ngx_kqueue_conf_t *kcf;
|
|
|
788
|
|
50
|
789 kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
|
|
|
790 if (kcf == NULL) {
|
|
|
791 return NGX_CONF_ERROR;
|
|
|
792 }
|
|
0
|
793
|
|
|
794 kcf->changes = NGX_CONF_UNSET;
|
|
|
795 kcf->events = NGX_CONF_UNSET;
|
|
|
796
|
|
|
797 return kcf;
|
|
|
798 }
|
|
|
799
|
|
|
800
|
|
48
|
801 static char *
|
|
|
802 ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
803 {
|
|
|
804 ngx_kqueue_conf_t *kcf = conf;
|
|
|
805
|
|
|
806 ngx_conf_init_value(kcf->changes, 512);
|
|
|
807 ngx_conf_init_value(kcf->events, 512);
|
|
|
808
|
|
|
809 return NGX_CONF_OK;
|
|
|
810 }
|
