Mercurial > hg > nginx

annotate src/event/ngx_event_timer.h @ 557:ecd9c160f25b release-0.3.0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.3.0-RELEASE import *) Change: the 10-days live time limit of worker process was eliminated. The limit was introduced because of millisecond timers overflow.
author Igor Sysoev <igor@sysoev.ru>
date Fri, 07 Oct 2005 13:30:52 +0000
parents d4ea69372b94
children c1f965ef9718
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 371
diff changeset
1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 371
diff changeset
2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 441
diff changeset
3 * Copyright (C) Igor Sysoev
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 371
diff changeset
4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 371
diff changeset
5
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 371
diff changeset
6
50
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7 #ifndef _NGX_EVENT_TIMER_H_INCLUDED_
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #define _NGX_EVENT_TIMER_H_INCLUDED_
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
9
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11 #include <ngx_config.h>
103
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 91
diff changeset
12 #include <ngx_core.h>
50
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
13 #include <ngx_event.h>
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
14
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
15
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
16 #define NGX_TIMER_INFINITE (ngx_msec_t) -1
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 493
diff changeset
17 #define NGX_TIMER_ERROR (ngx_msec_t) -2
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
18
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
19 #define NGX_TIMER_LAZY_DELAY 300
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
20
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
21
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
22 ngx_int_t ngx_event_timer_init(ngx_log_t *log);
206
9aa426375256 nginx-0.0.1-2003-12-05-10:11:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 205
diff changeset
23 ngx_msec_t ngx_event_find_timer(void);
557
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
24 void ngx_event_expire_timers(void);
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
25
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
26
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
27 #if (NGX_THREADS)
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
28 extern ngx_mutex_t *ngx_event_timer_mutex;
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
29 #endif
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
30
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
31
275
b836469c37c3 nginx-0.0.2-2004-03-02-18:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents: 272
diff changeset
32 extern ngx_thread_volatile ngx_rbtree_t *ngx_event_timer_rbtree;
b836469c37c3 nginx-0.0.2-2004-03-02-18:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents: 272
diff changeset
33 extern ngx_rbtree_t ngx_event_timer_sentinel;
207
6e0fef527732 nginx-0.0.1-2003-12-05-20:07:27 import
Igor Sysoev <igor@sysoev.ru>
parents: 206
diff changeset
34
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
35
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
36 static ngx_inline void
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
37 ngx_event_del_timer(ngx_event_t *ev)
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
38 {
214
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
39 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
557
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
40 "event timer del: %d: %M",
214
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
41 ngx_event_ident(ev->data), ev->rbtree_key);
213
f536f91e8e99 nginx-0.0.1-2003-12-19-15:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents: 210
diff changeset
42
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
43 if (ngx_mutex_lock(ngx_event_timer_mutex) == NGX_ERROR) {
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
44 return;
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
45 }
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
46
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
47 ngx_rbtree_delete((ngx_rbtree_t **) &ngx_event_timer_rbtree,
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
48 &ngx_event_timer_sentinel,
206
9aa426375256 nginx-0.0.1-2003-12-05-10:11:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 205
diff changeset
49 (ngx_rbtree_t *) &ev->rbtree_key);
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
50
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
51 ngx_mutex_unlock(ngx_event_timer_mutex);
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
52
214
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
53 #if (NGX_DEBUG)
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
54 ev->rbtree_left = NULL;
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
55 ev->rbtree_right = NULL;
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
56 ev->rbtree_parent = NULL;
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
57 #endif
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 213
diff changeset
58
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
59 ev->timer_set = 0;
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
60 }
50
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
61
b288069a8696 nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
62
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
63 static ngx_inline void
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
64 ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer)
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
65 {
557
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
66 ngx_rbtree_key_t key;
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
67 ngx_rbtree_key_int_t diff;
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
68
557
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
69 key = ngx_current_time + timer;
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
70
303
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
71 if (ev->timer_set) {
304
bcbe876f4262 nginx-0.0.3-2004-04-02-09:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents: 303
diff changeset
72
bcbe876f4262 nginx-0.0.3-2004-04-02-09:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents: 303
diff changeset
73 /*
bcbe876f4262 nginx-0.0.3-2004-04-02-09:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents: 303
diff changeset
74 * Use the previous timer value if a difference between them is less
493
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
75 * then NGX_TIMER_LAZY_DELAY milliseconds. It allows to minimize
975f62e77f02 nginx-0.1.21-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 467
diff changeset
76 * the rbtree operations for the fast connections.
304
bcbe876f4262 nginx-0.0.3-2004-04-02-09:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents: 303
diff changeset
77 */
bcbe876f4262 nginx-0.0.3-2004-04-02-09:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents: 303
diff changeset
78
557
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
79 diff = (ngx_rbtree_key_int_t) (key - ev->rbtree_key);
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
80
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
81 if (ngx_abs(diff) < NGX_TIMER_LAZY_DELAY) {
303
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
82 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
557
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
83 "event timer: %d, old: %M, new: %M",
303
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
84 ngx_event_ident(ev->data), ev->rbtree_key, key);
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
85 return;
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
86 }
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
87
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
88 ngx_del_timer(ev);
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
89 }
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
90
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
91 ev->rbtree_key = key;
00c5660d2707 nginx-0.0.3-2004-04-01-20:20:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 275
diff changeset
92
557
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
93 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
94 "event timer add: %d: %M:%M",
ecd9c160f25b nginx-0.3.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
95 ngx_event_ident(ev->data), timer, ev->rbtree_key);
213
f536f91e8e99 nginx-0.0.1-2003-12-19-15:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents: 210
diff changeset
96
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
97 if (ngx_mutex_lock(ngx_event_timer_mutex) == NGX_ERROR) {
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
98 return;
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
99 }
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
100
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
101 ngx_rbtree_insert((ngx_rbtree_t **) &ngx_event_timer_rbtree,
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
102 &ngx_event_timer_sentinel,
206
9aa426375256 nginx-0.0.1-2003-12-05-10:11:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 205
diff changeset
103 (ngx_rbtree_t *) &ev->rbtree_key);
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
104
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
105 ngx_mutex_unlock(ngx_event_timer_mutex);
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 230
diff changeset
106
205
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
107 ev->timer_set = 1;
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
108 }
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
109
4a9a2b1dd6fa nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
110
59
e8cdc2989cee nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 53
diff changeset
111 #endif /* _NGX_EVENT_TIMER_H_INCLUDED_ */