Mercurial > hg > nginx
annotate src/event/ngx_event_timer.c @ 107:b5be4b0448d3
nginx-0.0.1-2003-07-01-19:00:03 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 01 Jul 2003 15:00:03 +0000 |
parents | 00bee6e7b485 |
children | d7f606e25b99 |
rev | line source |
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1 |
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 #include <ngx_event.h> |
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5 |
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7 static ngx_event_t *ngx_timer_queue; |
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8 static int ngx_timer_cur_queue; |
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9 static int ngx_timer_queue_num; |
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12 int ngx_event_timer_init(ngx_log_t *log) |
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13 { |
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14 int i; |
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15 ngx_event_t *new_queue; |
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16 ngx_event_conf_t *ecf; |
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18 ecf = ngx_event_get_conf(ngx_event_core_module); |
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20 if (ngx_timer_queue_num < ecf->timer_queues) { |
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21 ngx_test_null(new_queue, |
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22 ngx_alloc(ecf->timer_queues * sizeof(ngx_event_t), log), |
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23 NGX_ERROR); |
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24 |
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25 for (i = 0; i < ngx_timer_queue_num; i++) { |
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26 new_queue[i] = ngx_timer_queue[i]; |
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27 } |
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29 if (ngx_timer_queue) { |
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30 ngx_free(ngx_timer_queue); |
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31 } |
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32 |
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33 ngx_timer_queue = new_queue; |
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34 |
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35 ngx_timer_queue_num = ecf->timer_queues; |
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36 ngx_timer_cur_queue = 0; |
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37 |
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38 for (/* void */; i < ngx_timer_queue_num; i++) { |
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39 ngx_timer_queue[i].timer_prev = &ngx_timer_queue[i]; |
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40 ngx_timer_queue[i].timer_next = &ngx_timer_queue[i]; |
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41 } |
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42 } |
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44 return NGX_OK;; |
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45 } |
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46 |
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47 |
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48 void ngx_event_timer_done(ngx_log_t *log) |
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49 { |
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50 ngx_free(ngx_timer_queue); |
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51 ngx_timer_queue = NULL; |
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52 } |
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53 |
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54 |
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55 void ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer) |
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56 { |
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57 ngx_event_t *e; |
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58 |
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59 #if (NGX_DEBUG_EVENT) |
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60 ngx_connection_t *c = ev->data; |
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61 ngx_log_debug(ev->log, "set timer: %d:%d, slot: %d" _ |
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62 c->fd _ timer _ ngx_timer_cur_queue); |
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63 #endif |
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64 |
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65 if (ev->timer_next || ev->timer_prev) { |
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66 ngx_log_error(NGX_LOG_ALERT, ev->log, 0, "timer already set"); |
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67 return; |
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68 } |
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70 for (e = ngx_timer_queue[ngx_timer_cur_queue].timer_next; |
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71 e != &ngx_timer_queue[ngx_timer_cur_queue] && timer > e->timer_delta; |
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72 e = e->timer_next) |
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73 { |
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74 timer -= e->timer_delta; |
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75 } |
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76 |
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77 ngx_timer_cur_queue++; |
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78 if (ngx_timer_cur_queue >= ngx_timer_queue_num) { |
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79 ngx_timer_cur_queue = 0; |
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80 } |
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81 |
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82 ev->timer_delta = timer; |
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83 |
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84 ev->timer_next = e; |
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85 ev->timer_prev = e->timer_prev; |
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86 |
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87 e->timer_prev->timer_next = ev; |
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88 e->timer_prev = ev; |
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89 } |
51
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90 |
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91 |
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92 int ngx_event_find_timer(void) |
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93 { |
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94 int i; |
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95 ngx_msec_t timer; |
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96 |
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97 timer = NGX_MAX_MSEC; |
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98 |
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99 for (i = 0; i < ngx_timer_queue_num; i++) { |
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100 if (ngx_timer_queue[i].timer_next == &ngx_timer_queue[i]) { |
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101 continue; |
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102 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
103 |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
104 if (timer > ngx_timer_queue[i].timer_next->timer_delta) { |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
105 timer = ngx_timer_queue[i].timer_next->timer_delta; |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
106 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
107 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
108 |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
109 if (timer == NGX_MAX_MSEC) { |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
110 return 0; |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
111 } else { |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
112 return timer; |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
113 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
114 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
115 |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
116 |
51
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
117 void ngx_event_expire_timers(ngx_msec_t timer) |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
118 { |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
119 int i; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
120 ngx_msec_t delta; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
121 ngx_event_t *ev; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
122 |
53
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
123 for (i = 0; i < ngx_timer_queue_num; i++) { |
51
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
124 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
125 delta = timer; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
126 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
127 for ( ;; ) { |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
128 ev = ngx_timer_queue[i].timer_next; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
129 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
130 if (ev == &ngx_timer_queue[i]) { |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
131 break; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
132 } |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
133 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
134 if (ev->timer_delta > delta) { |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
135 ev->timer_delta -= delta; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
136 break; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
137 } |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
138 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
139 delta -= ev->timer_delta; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
140 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
141 ngx_del_timer(ev); |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
142 ev->timer_set = 0; |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
143 |
77
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
144 if (ev->delayed) { |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
145 ev->delayed = 0; |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
146 if (ev->ready == 0) { |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
147 continue; |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
148 } |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
149 |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
150 } else { |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
151 ev->timedout = 1; |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
152 } |
51
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
153 |
87
5f6d848dcbef
nginx-0.0.1-2003-05-13-20:02:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
154 ev->event_handler(ev); |
51
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
155 } |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
156 } |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
157 } |