Mercurial > hg > nginx-quic
annotate src/core/ngx_open_file_cache.c @ 1744:d65172100f6b
log run cleanups clearly
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 17 Dec 2007 17:29:36 +0000 |
parents | 4fc402c3ec73 |
children | 1c4b231ba90c |
rev | line source |
---|---|
1453 | 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 | |
12 /* | |
13 * open file cache caches | |
14 * open file handles with stat() info; | |
15 * directories stat() info; | |
16 * files and directories errors: not found, access denied, etc. | |
17 */ | |
18 | |
19 | |
20 static void ngx_open_file_cache_cleanup(void *data); | |
21 static void ngx_open_file_cleanup(void *data); | |
22 static void ngx_close_cached_file(ngx_open_file_cache_t *cache, | |
23 ngx_cached_open_file_t *file, ngx_log_t *log); | |
24 static ngx_int_t ngx_open_and_stat_file(u_char *name, ngx_open_file_info_t *of, | |
25 ngx_log_t *log); | |
26 static void ngx_expire_old_cached_files(ngx_open_file_cache_t *cache, | |
27 ngx_uint_t n, ngx_log_t *log); | |
28 static void ngx_open_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp, | |
29 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); | |
30 static void ngx_open_file_cache_remove(ngx_event_t *ev); | |
31 | |
32 | |
33 ngx_open_file_cache_t * | |
34 ngx_open_file_cache_init(ngx_pool_t *pool, ngx_uint_t max, time_t inactive) | |
35 { | |
36 ngx_rbtree_node_t *sentinel; | |
37 ngx_pool_cleanup_t *cln; | |
38 ngx_open_file_cache_t *cache; | |
39 | |
40 cache = ngx_palloc(pool, sizeof(ngx_open_file_cache_t)); | |
41 if (cache == NULL) { | |
42 return NULL; | |
43 } | |
44 | |
45 cache->list_head.prev = NULL; | |
46 cache->list_head.next = &cache->list_tail; | |
47 | |
48 cache->list_tail.prev = &cache->list_head; | |
49 cache->list_tail.next = NULL; | |
50 | |
51 sentinel = ngx_palloc(pool, sizeof(ngx_rbtree_node_t)); | |
52 if (sentinel == NULL) { | |
53 return NULL; | |
54 } | |
55 | |
1743
4fc402c3ec73
optimize rbtree initialization and insert
Igor Sysoev <igor@sysoev.ru>
parents:
1458
diff
changeset
|
56 ngx_rbtree_init(&cache->rbtree, sentinel, |
4fc402c3ec73
optimize rbtree initialization and insert
Igor Sysoev <igor@sysoev.ru>
parents:
1458
diff
changeset
|
57 ngx_open_file_cache_rbtree_insert_value); |
1453 | 58 |
59 cache->current = 0; | |
60 cache->max = max; | |
61 cache->inactive = inactive; | |
62 | |
63 cln = ngx_pool_cleanup_add(pool, 0); | |
64 if (cln == NULL) { | |
65 return NULL; | |
66 } | |
67 | |
68 cln->handler = ngx_open_file_cache_cleanup; | |
69 cln->data = cache; | |
70 | |
71 return cache; | |
72 } | |
73 | |
74 | |
75 static void | |
76 ngx_open_file_cache_cleanup(void *data) | |
77 { | |
78 ngx_open_file_cache_t *cache = data; | |
79 | |
80 ngx_cached_open_file_t *file; | |
81 | |
82 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
83 "open file cache cleanup"); | |
84 | |
85 for ( ;; ) { | |
86 | |
87 file = cache->list_tail.prev; | |
88 | |
89 if (file == &cache->list_head) { | |
90 break; | |
91 } | |
92 | |
93 file->next->prev = file->prev; | |
94 file->prev->next = file->next; | |
95 | |
96 ngx_rbtree_delete(&cache->rbtree, &file->node); | |
97 | |
98 cache->current--; | |
99 | |
100 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, | |
101 "delete cached open file: %s", file->name); | |
102 | |
103 if (!file->err && !file->is_dir) { | |
104 file->close = 1; | |
105 file->count = 0; | |
106 ngx_close_cached_file(cache, file, ngx_cycle->log); | |
107 | |
108 } else { | |
109 ngx_free(file->name); | |
110 ngx_free(file); | |
111 } | |
112 } | |
113 | |
114 if (cache->current) { | |
115 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
116 "%d items still leave in open file cache", | |
117 cache->current); | |
118 } | |
119 | |
120 if (cache->rbtree.root != cache->rbtree.sentinel) { | |
121 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, | |
122 "rbtree still is not empty in open file cache"); | |
123 | |
124 } | |
125 } | |
126 | |
127 | |
128 ngx_int_t | |
129 ngx_open_cached_file(ngx_open_file_cache_t *cache, ngx_str_t *name, | |
130 ngx_open_file_info_t *of, ngx_pool_t *pool) | |
131 { | |
132 time_t now; | |
133 uint32_t hash; | |
134 ngx_int_t rc; | |
135 ngx_rbtree_node_t *node, *sentinel; | |
136 ngx_pool_cleanup_t *cln; | |
137 ngx_cached_open_file_t *file; | |
138 ngx_pool_cleanup_file_t *clnf; | |
139 ngx_open_file_cache_event_t *fev; | |
140 ngx_open_file_cache_cleanup_t *ofcln; | |
141 | |
142 of->err = 0; | |
143 | |
144 if (cache == NULL) { | |
145 | |
146 cln = ngx_pool_cleanup_add(pool, sizeof(ngx_pool_cleanup_file_t)); | |
147 if (cln == NULL) { | |
148 return NGX_ERROR; | |
149 } | |
150 | |
151 rc = ngx_open_and_stat_file(name->data, of, pool->log); | |
152 | |
153 if (rc == NGX_OK && !of->is_dir) { | |
154 cln->handler = ngx_pool_cleanup_file; | |
155 clnf = cln->data; | |
156 | |
157 clnf->fd = of->fd; | |
158 clnf->name = name->data; | |
159 clnf->log = pool->log; | |
160 } | |
161 | |
162 return rc; | |
163 } | |
164 | |
165 cln = ngx_pool_cleanup_add(pool, sizeof(ngx_open_file_cache_cleanup_t)); | |
166 if (cln == NULL) { | |
167 return NGX_ERROR; | |
168 } | |
169 | |
170 hash = ngx_crc32_long(name->data, name->len); | |
171 | |
172 node = cache->rbtree.root; | |
173 sentinel = cache->rbtree.sentinel; | |
174 | |
175 now = ngx_time(); | |
176 | |
177 while (node != sentinel) { | |
178 | |
179 if (hash < node->key) { | |
180 node = node->left; | |
181 continue; | |
182 } | |
183 | |
184 if (hash > node->key) { | |
185 node = node->right; | |
186 continue; | |
187 } | |
188 | |
189 /* hash == node->key */ | |
190 | |
191 do { | |
192 file = (ngx_cached_open_file_t *) node; | |
193 | |
194 rc = ngx_strcmp(name->data, file->name); | |
195 | |
196 if (rc == 0) { | |
197 | |
198 file->next->prev = file->prev; | |
199 file->prev->next = file->next; | |
200 | |
201 if (file->event || now - file->created < of->retest) { | |
202 if (file->err == 0) { | |
203 of->fd = file->fd; | |
204 of->uniq = file->uniq; | |
205 of->mtime = file->mtime; | |
206 of->size = file->size; | |
207 | |
208 of->is_dir = file->is_dir; | |
209 of->is_file = file->is_file; | |
210 of->is_link = file->is_link; | |
211 of->is_exec = file->is_exec; | |
212 | |
213 if (!file->is_dir) { | |
214 file->count++; | |
215 } | |
216 | |
217 } else { | |
218 of->err = file->err; | |
219 } | |
220 | |
221 goto found; | |
222 } | |
223 | |
224 ngx_log_debug4(NGX_LOG_DEBUG_CORE, pool->log, 0, | |
225 "retest open file: %s, fd:%d, c:%d, e:%d", | |
226 file->name, file->fd, file->count, file->err); | |
227 | |
228 if (file->is_dir) { | |
229 | |
230 /* | |
231 * chances that directory became file are very small | |
232 * so test_dir flag allows to use a single ngx_file_info() | |
233 * syscall instead of three syscalls | |
234 */ | |
235 | |
236 of->test_dir = 1; | |
237 } | |
238 | |
239 rc = ngx_open_and_stat_file(name->data, of, pool->log); | |
240 | |
241 if (rc != NGX_OK && (of->err == 0 || !of->errors)) { | |
242 goto failed; | |
243 } | |
244 | |
245 if (of->is_dir) { | |
246 if (file->is_dir || file->err) { | |
247 goto update; | |
248 } | |
249 | |
250 /* file became directory */ | |
251 | |
252 } else if (of->err == 0) { /* file */ | |
253 | |
254 if (file->is_dir || file->err) { | |
255 goto update; | |
256 } | |
257 | |
258 if (of->uniq == file->uniq | |
259 && of->mtime == file->mtime | |
260 && of->size == file->size) | |
261 { | |
262 if (ngx_close_file(of->fd) == NGX_FILE_ERROR) { | |
263 ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno, | |
264 ngx_close_file_n " \"%s\" failed", | |
265 name->data); | |
266 } | |
267 | |
268 of->fd = file->fd; | |
269 file->count++; | |
270 | |
271 goto renew; | |
272 } | |
273 | |
274 /* file was changed */ | |
275 | |
276 } else { /* error to cache */ | |
277 | |
278 if (file->err || file->is_dir) { | |
279 goto update; | |
280 } | |
281 | |
282 /* file was removed, etc. */ | |
283 } | |
284 | |
285 if (file->count == 0) { | |
286 if (ngx_close_file(file->fd) == NGX_FILE_ERROR) { | |
287 ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno, | |
288 ngx_close_file_n " \"%s\" failed", | |
289 name->data); | |
290 } | |
291 | |
292 goto update; | |
293 } | |
294 | |
295 ngx_rbtree_delete(&cache->rbtree, &file->node); | |
296 | |
297 cache->current--; | |
298 | |
299 file->close = 1; | |
300 | |
301 goto create; | |
302 } | |
303 | |
304 node = (rc < 0) ? node->left : node->right; | |
305 | |
306 } while (node != sentinel && hash == node->key); | |
307 | |
308 break; | |
309 } | |
310 | |
311 /* not found */ | |
312 | |
313 file = NULL; | |
314 | |
315 rc = ngx_open_and_stat_file(name->data, of, pool->log); | |
316 | |
317 if (rc != NGX_OK && (of->err == 0 || !of->errors)) { | |
318 goto failed; | |
319 } | |
320 | |
321 create: | |
322 | |
323 if (cache->current >= cache->max) { | |
324 ngx_expire_old_cached_files(cache, 0, pool->log); | |
325 } | |
326 | |
327 file = ngx_alloc(sizeof(ngx_cached_open_file_t), pool->log); | |
328 | |
329 if (file == NULL) { | |
330 goto failed; | |
331 } | |
332 | |
333 file->name = ngx_alloc(name->len + 1, pool->log); | |
334 | |
335 if (file->name == NULL) { | |
336 ngx_free(file); | |
337 file = NULL; | |
338 goto failed; | |
339 } | |
340 | |
341 ngx_cpystrn(file->name, name->data, name->len + 1); | |
342 | |
343 file->node.key = hash; | |
344 | |
345 ngx_rbtree_insert(&cache->rbtree, &file->node); | |
346 | |
347 cache->current++; | |
348 | |
349 file->count = 0; | |
350 | |
351 update: | |
352 | |
1458
614090b26fbf
test the most relevant condition first
Igor Sysoev <igor@sysoev.ru>
parents:
1457
diff
changeset
|
353 if (of->events |
614090b26fbf
test the most relevant condition first
Igor Sysoev <igor@sysoev.ru>
parents:
1457
diff
changeset
|
354 && (ngx_event_flags & NGX_USE_VNODE_EVENT) |
1457 | 355 && of->fd != NGX_INVALID_FILE) |
356 { | |
1453 | 357 file->event = ngx_calloc(sizeof(ngx_event_t), pool->log); |
358 if (file->event== NULL) { | |
359 goto failed; | |
360 } | |
361 | |
362 fev = ngx_alloc(sizeof(ngx_open_file_cache_event_t), pool->log); | |
363 if (fev == NULL) { | |
364 goto failed; | |
365 } | |
366 | |
367 fev->fd = of->fd; | |
368 fev->file = file; | |
369 fev->cache = cache; | |
370 | |
371 file->event->handler = ngx_open_file_cache_remove; | |
372 file->event->data = fev; | |
373 | |
374 /* | |
375 * although vnode event may be called while ngx_cycle->poll | |
376 * destruction; however, cleanup procedures are run before any | |
377 * memory freeing and events will be canceled. | |
378 */ | |
379 | |
380 file->event->log = ngx_cycle->log; | |
381 | |
382 if (ngx_add_event(file->event, NGX_VNODE_EVENT, NGX_ONESHOT_EVENT) | |
383 != NGX_OK) | |
384 { | |
385 ngx_free(file->event->data); | |
386 ngx_free(file->event); | |
387 goto failed; | |
388 } | |
389 | |
390 } else { | |
391 file->event = NULL; | |
392 } | |
393 | |
394 file->fd = of->fd; | |
395 file->err = of->err; | |
396 | |
397 if (of->err == 0) { | |
398 file->uniq = of->uniq; | |
399 file->mtime = of->mtime; | |
400 file->size = of->size; | |
401 | |
402 file->close = 0; | |
403 | |
404 file->is_dir = of->is_dir; | |
405 file->is_file = of->is_file; | |
406 file->is_link = of->is_link; | |
407 file->is_exec = of->is_exec; | |
408 | |
409 if (!of->is_dir) { | |
410 file->count++; | |
411 } | |
412 } | |
413 | |
414 renew: | |
415 | |
416 file->created = now; | |
417 | |
418 found: | |
419 | |
420 file->accessed = now; | |
421 | |
422 /* add to the inactive list head */ | |
423 | |
424 file->next = cache->list_head.next; | |
425 file->next->prev = file; | |
426 file->prev = &cache->list_head; | |
427 cache->list_head.next = file; | |
428 | |
429 ngx_log_debug4(NGX_LOG_DEBUG_CORE, pool->log, 0, | |
430 "cached open file: %s, fd:%d, c:%d, e:%d", | |
431 file->name, file->fd, file->count, file->err); | |
432 | |
433 if (of->err == 0) { | |
434 | |
435 if (!of->is_dir) { | |
436 cln->handler = ngx_open_file_cleanup; | |
437 ofcln = cln->data; | |
438 | |
439 ofcln->cache = cache; | |
440 ofcln->file = file; | |
441 ofcln->log = pool->log; | |
442 } | |
443 | |
444 return NGX_OK; | |
445 } | |
446 | |
447 return NGX_ERROR; | |
448 | |
449 failed: | |
450 | |
451 if (file && file->count == 0) { | |
452 ngx_rbtree_delete(&cache->rbtree, &file->node); | |
453 | |
454 cache->current--; | |
455 | |
456 if (ngx_close_file(file->fd) == NGX_FILE_ERROR) { | |
457 ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno, | |
458 ngx_close_file_n " \"%s\" failed", file->name); | |
459 } | |
460 | |
461 ngx_free(file->name); | |
462 ngx_free(file); | |
463 } | |
464 | |
465 if (of->fd != NGX_INVALID_FILE) { | |
466 if (ngx_close_file(of->fd) == NGX_FILE_ERROR) { | |
467 ngx_log_error(NGX_LOG_ALERT, pool->log, ngx_errno, | |
468 ngx_close_file_n " \"%s\" failed", name->data); | |
469 } | |
470 } | |
471 | |
472 return NGX_ERROR; | |
473 } | |
474 | |
475 | |
476 static ngx_int_t | |
477 ngx_open_and_stat_file(u_char *name, ngx_open_file_info_t *of, ngx_log_t *log) | |
478 { | |
479 ngx_fd_t fd; | |
480 ngx_file_info_t fi; | |
481 | |
482 of->fd = NGX_INVALID_FILE; | |
483 | |
484 if (of->test_dir) { | |
485 | |
486 if (ngx_file_info(name, &fi) == -1) { | |
487 of->err = ngx_errno; | |
488 | |
489 return NGX_ERROR; | |
490 } | |
491 | |
492 of->uniq = ngx_file_uniq(&fi); | |
493 of->mtime = ngx_file_mtime(&fi); | |
494 of->size = ngx_file_size(&fi); | |
495 of->is_dir = ngx_is_dir(&fi); | |
496 of->is_file = ngx_is_file(&fi); | |
497 of->is_link = ngx_is_link(&fi); | |
498 of->is_exec = ngx_is_exec(&fi); | |
499 | |
500 if (of->is_dir) { | |
501 return NGX_OK; | |
502 } | |
503 } | |
504 | |
505 fd = ngx_open_file(name, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0); | |
506 | |
507 if (fd == NGX_INVALID_FILE) { | |
508 of->err = ngx_errno; | |
509 return NGX_ERROR; | |
510 } | |
511 | |
512 if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) { | |
513 ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, | |
514 ngx_fd_info_n " \"%s\" failed", name); | |
515 | |
516 if (ngx_close_file(fd) == NGX_FILE_ERROR) { | |
517 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
518 ngx_close_file_n " \"%s\" failed", name); | |
519 } | |
520 | |
521 return NGX_ERROR; | |
522 } | |
523 | |
524 if (ngx_is_dir(&fi)) { | |
525 if (ngx_close_file(fd) == NGX_FILE_ERROR) { | |
526 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
527 ngx_close_file_n " \"%s\" failed", name); | |
528 } | |
529 | |
530 fd = NGX_INVALID_FILE; | |
531 } | |
532 | |
533 of->fd = fd; | |
534 of->uniq = ngx_file_uniq(&fi); | |
535 of->mtime = ngx_file_mtime(&fi); | |
536 of->size = ngx_file_size(&fi); | |
537 of->is_dir = ngx_is_dir(&fi); | |
538 of->is_file = ngx_is_file(&fi); | |
539 of->is_link = ngx_is_link(&fi); | |
540 of->is_exec = ngx_is_exec(&fi); | |
541 | |
542 return NGX_OK; | |
543 } | |
544 | |
545 | |
546 static void | |
547 ngx_open_file_cleanup(void *data) | |
548 { | |
549 ngx_open_file_cache_cleanup_t *c = data; | |
550 | |
551 c->file->count--; | |
552 | |
553 ngx_close_cached_file(c->cache, c->file, c->log); | |
554 | |
555 /* drop one or two expired open files */ | |
556 ngx_expire_old_cached_files(c->cache, 1, c->log); | |
557 } | |
558 | |
559 | |
560 static void | |
561 ngx_close_cached_file(ngx_open_file_cache_t *cache, | |
562 ngx_cached_open_file_t *file, ngx_log_t *log) | |
563 { | |
564 ngx_log_debug4(NGX_LOG_DEBUG_CORE, log, 0, | |
565 "close cached open file: %s, fd:%d, c:%d, %d", | |
566 file->name, file->fd, file->count, file->close); | |
567 | |
568 if (!file->close) { | |
569 | |
570 file->accessed = ngx_time(); | |
571 | |
572 if (cache->list_head.next != file) { | |
573 | |
574 /* delete from inactive list */ | |
575 | |
576 file->next->prev = file->prev; | |
577 file->prev->next = file->next; | |
578 | |
579 /* add to the inactive list head */ | |
580 | |
581 file->next = cache->list_head.next; | |
582 file->next->prev = file; | |
583 file->prev = &cache->list_head; | |
584 cache->list_head.next = file; | |
585 } | |
586 | |
587 return; | |
588 } | |
589 | |
590 if (file->event) { | |
591 (void) ngx_del_event(file->event, NGX_VNODE_EVENT, | |
592 file->count ? NGX_FLUSH_EVENT : NGX_CLOSE_EVENT); | |
593 | |
594 ngx_free(file->event->data); | |
595 ngx_free(file->event); | |
596 file->event = NULL; | |
597 } | |
598 | |
599 if (file->count) { | |
600 return; | |
601 } | |
602 | |
603 if (ngx_close_file(file->fd) == NGX_FILE_ERROR) { | |
604 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
605 ngx_close_file_n " \"%s\" failed", file->name); | |
606 } | |
607 | |
608 ngx_free(file->name); | |
609 ngx_free(file); | |
610 } | |
611 | |
612 | |
613 static void | |
614 ngx_expire_old_cached_files(ngx_open_file_cache_t *cache, ngx_uint_t n, | |
615 ngx_log_t *log) | |
616 { | |
617 time_t now; | |
618 ngx_cached_open_file_t *file; | |
619 | |
620 now = ngx_time(); | |
621 | |
622 /* | |
623 * n == 1 deletes one or two inactive files | |
624 * n == 0 deletes least recently used file by force | |
625 * and one or two inactive files | |
626 */ | |
627 | |
628 while (n < 3) { | |
629 | |
630 file = cache->list_tail.prev; | |
631 | |
632 if (file == &cache->list_head) { | |
633 return; | |
634 } | |
635 | |
636 if (n++ != 0 && now - file->accessed <= cache->inactive) { | |
637 return; | |
638 } | |
639 | |
640 file->next->prev = file->prev; | |
641 file->prev->next = file->next; | |
642 | |
643 ngx_rbtree_delete(&cache->rbtree, &file->node); | |
644 | |
645 cache->current--; | |
646 | |
647 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, | |
648 "expire cached open file: %s", file->name); | |
649 | |
650 if (!file->err && !file->is_dir) { | |
651 file->close = 1; | |
652 ngx_close_cached_file(cache, file, log); | |
653 | |
654 } else { | |
655 ngx_free(file->name); | |
656 ngx_free(file); | |
657 } | |
658 } | |
659 } | |
660 | |
661 | |
662 static void | |
663 ngx_open_file_cache_rbtree_insert_value(ngx_rbtree_node_t *temp, | |
664 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) | |
665 { | |
666 ngx_rbtree_node_t **p; | |
667 ngx_cached_open_file_t *file, *file_temp; | |
668 | |
669 for ( ;; ) { | |
670 | |
671 if (node->key < temp->key) { | |
672 | |
673 p = &temp->left; | |
674 | |
675 } else if (node->key > temp->key) { | |
676 | |
677 p = &temp->right; | |
678 | |
679 } else { /* node->key == temp->key */ | |
680 | |
681 file = (ngx_cached_open_file_t *) node; | |
682 file_temp = (ngx_cached_open_file_t *) temp; | |
683 | |
684 p = (ngx_strcmp(file->name, file_temp->name) < 0) | |
685 ? &temp->left : &temp->right; | |
686 } | |
687 | |
688 if (*p == sentinel) { | |
689 break; | |
690 } | |
691 | |
692 temp = *p; | |
693 } | |
694 | |
695 *p = node; | |
696 node->parent = temp; | |
697 node->left = sentinel; | |
698 node->right = sentinel; | |
699 ngx_rbt_red(node); | |
700 } | |
701 | |
702 | |
703 static void | |
704 ngx_open_file_cache_remove(ngx_event_t *ev) | |
705 { | |
706 ngx_cached_open_file_t *file; | |
707 ngx_open_file_cache_event_t *fev; | |
708 | |
709 fev = ev->data; | |
710 file = fev->file; | |
711 | |
712 file->next->prev = file->prev; | |
713 file->prev->next = file->next; | |
714 | |
715 ngx_rbtree_delete(&fev->cache->rbtree, &file->node); | |
716 | |
717 fev->cache->current--; | |
718 | |
719 /* NGX_ONESHOT_EVENT was already deleted */ | |
720 file->event = NULL; | |
721 | |
722 file->close = 1; | |
723 | |
724 ngx_close_cached_file(fev->cache, file, ev->log); | |
725 | |
726 /* free memory only when fev->cache and fev->file are already not needed */ | |
727 | |
728 ngx_free(ev->data); | |
729 ngx_free(ev); | |
730 } |