Mercurial > hg > nginx
annotate src/event/ngx_event_timer.c @ 119:cd54bcbaf3b5
nginx-0.0.1-2003-07-21-01:15:59 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Sun, 20 Jul 2003 21:15:59 +0000 |
parents | ac69ab96328d |
children | ef8c87afcfc5 |
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 /* in multithreaded enviroment all timer operations must be |
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8 protected by the single mutex */ |
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11 static ngx_event_t *ngx_timer_queue, ngx_temp_timer_queue; |
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12 static int ngx_timer_cur_queue; |
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13 static int ngx_timer_queue_num; |
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14 static int ngx_expire_timers; |
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17 int ngx_event_timer_init(ngx_cycle_t *cycle) |
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18 { |
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19 int i; |
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20 ngx_event_t *new_queue; |
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21 ngx_event_conf_t *ecf; |
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23 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module); |
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25 if (ngx_timer_queue_num < ecf->timer_queues) { |
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26 ngx_test_null(new_queue, |
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27 ngx_alloc(ecf->timer_queues * sizeof(ngx_event_t), |
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28 cycle->log), |
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29 NGX_ERROR); |
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30 |
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31 for (i = 0; i < ngx_timer_queue_num; i++) { |
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32 new_queue[i] = ngx_timer_queue[i]; |
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33 } |
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34 |
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35 if (ngx_timer_queue) { |
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36 ngx_free(ngx_timer_queue); |
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37 } |
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38 |
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39 ngx_timer_queue = new_queue; |
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41 ngx_timer_queue_num = ecf->timer_queues; |
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42 ngx_timer_cur_queue = 0; |
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43 |
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44 for (/* void */; i < ngx_timer_queue_num; i++) { |
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45 ngx_timer_queue[i].timer_prev = &ngx_timer_queue[i]; |
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46 ngx_timer_queue[i].timer_next = &ngx_timer_queue[i]; |
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47 } |
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48 |
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49 } else if (ngx_timer_queue_num > ecf->timer_queues) { |
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50 /* STUB */ |
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51 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "NOT READY: timer"); |
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52 exit(1); |
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53 } |
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54 |
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55 ngx_temp_timer_queue.timer_prev = &ngx_temp_timer_queue; |
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56 ngx_temp_timer_queue.timer_next = &ngx_temp_timer_queue; |
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57 |
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58 return NGX_OK;; |
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59 } |
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60 |
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61 |
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62 void ngx_event_timer_done(ngx_cycle_t *cycle) |
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63 { |
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64 ngx_free(ngx_timer_queue); |
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65 ngx_timer_queue = NULL; |
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66 ngx_timer_queue_num = 0; |
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67 } |
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68 |
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69 |
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70 void ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer) |
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71 { |
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72 ngx_event_t *e, *queue; |
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73 |
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74 #if (NGX_DEBUG_EVENT) |
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75 ngx_connection_t *c = ev->data; |
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76 ngx_log_debug(ev->log, "set timer: %d:%d, slot: %d" _ |
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77 c->fd _ timer _ ngx_timer_cur_queue); |
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78 #endif |
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79 |
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80 if (ev->timer_next || ev->timer_prev) { |
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81 ngx_log_error(NGX_LOG_ALERT, ev->log, 0, "timer already set"); |
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82 return; |
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83 } |
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84 |
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85 if (ngx_expire_timers) { |
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86 queue = &ngx_temp_timer_queue; |
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87 |
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88 } else { |
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89 queue = &ngx_timer_queue[ngx_timer_cur_queue++]; |
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90 |
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91 if (ngx_timer_cur_queue >= ngx_timer_queue_num) { |
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92 ngx_timer_cur_queue = 0; |
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93 } |
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94 } |
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95 |
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96 for (e = queue->timer_next; |
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97 e != queue && timer > e->timer_delta; |
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98 e = e->timer_next) |
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99 { |
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100 timer -= e->timer_delta; |
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101 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
102 |
c091d5b853c8
nginx-0.0.1-2003-01-21-20:36:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
103 ev->timer_delta = timer; |
c091d5b853c8
nginx-0.0.1-2003-01-21-20:36:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
104 |
c091d5b853c8
nginx-0.0.1-2003-01-21-20:36:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
105 ev->timer_next = e; |
c091d5b853c8
nginx-0.0.1-2003-01-21-20:36:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
106 ev->timer_prev = e->timer_prev; |
c091d5b853c8
nginx-0.0.1-2003-01-21-20:36:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
107 |
c091d5b853c8
nginx-0.0.1-2003-01-21-20:36:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
108 e->timer_prev->timer_next = ev; |
c091d5b853c8
nginx-0.0.1-2003-01-21-20:36:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
109 e->timer_prev = ev; |
c091d5b853c8
nginx-0.0.1-2003-01-21-20:36:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
110 } |
51
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
111 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
112 |
53
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
113 int ngx_event_find_timer(void) |
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 int i; |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
116 ngx_msec_t timer; |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
117 |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
118 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
|
119 |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
120 for (i = 0; i < ngx_timer_queue_num; i++) { |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
121 if (ngx_timer_queue[i].timer_next == &ngx_timer_queue[i]) { |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
122 continue; |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
123 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
124 |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
125 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
|
126 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
|
127 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
128 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
129 |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
130 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
|
131 return 0; |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
132 } else { |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
133 return timer; |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
134 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
135 } |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
136 |
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
137 |
51
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
138 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
|
139 { |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
140 int i; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
141 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
|
142 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
|
143 |
114
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
144 ngx_expire_timers = 1; |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
145 |
53
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
52
diff
changeset
|
146 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
|
147 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
148 delta = timer; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
149 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
150 for ( ;; ) { |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
151 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
|
152 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
153 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
|
154 break; |
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 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
|
158 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
|
159 break; |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
160 } |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
161 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
162 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
|
163 |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
164 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
|
165 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
|
166 |
77
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
167 if (ev->delayed) { |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
168 ev->delayed = 0; |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
169 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
|
170 continue; |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
171 } |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
172 |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
173 } else { |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
174 ev->timedout = 1; |
57c2e18d3572
nginx-0.0.1-2003-04-17-21:59:35 import
Igor Sysoev <igor@sysoev.ru>
parents:
53
diff
changeset
|
175 } |
51
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
176 |
87
5f6d848dcbef
nginx-0.0.1-2003-05-13-20:02:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
177 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
|
178 } |
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
179 } |
114
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
180 |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
181 ngx_expire_timers = 0; |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
182 |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
183 if (ngx_temp_timer_queue.timer_next == &ngx_temp_timer_queue) { |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
184 return; |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
185 } |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
186 |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
187 timer = 0; |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
188 |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
189 while (ngx_temp_timer_queue.timer_next != &ngx_temp_timer_queue) { |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
190 timer += ngx_temp_timer_queue.timer_next->timer_delta; |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
191 ev = ngx_temp_timer_queue.timer_next; |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
192 |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
193 ngx_del_timer(ev); |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
194 ngx_add_timer(ev, timer); |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
195 } |
51
a6afbb8a2ada
nginx-0.0.1-2003-01-24-09:20:47 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
196 } |