Mercurial > hg > nginx
annotate src/event/ngx_event_timer.c @ 485:4ebe09b07e30 release-0.1.17
nginx-0.1.17-RELEASE import
*) Change: the ngx_http_rewrite_module was rewritten from the scratch.
Now it is possible to redirect, to return the error codes, to check
the variables and referrers. The directives can be used inside
locations. The redirect directive was canceled.
*) Feature: the ngx_http_geo_module.
*) Feature: the proxy_set_x_var and fastcgi_set_var directives.
*) Bugfix: the location configuration with "=" modifier may be used in
another location.
*) Bugfix: the correct content type was set only for requests that use
small caps letters in extension.
*) Bugfix: if the proxy_pass or fastcgi_pass directives were set in the
location, and access was denied, and the error was redirected to a
static page, then the segmentation fault occurred.
*) Bugfix: if in a proxied "Location" header was a relative URL, then a
host name and a slash were added to them; the bug had appeared in
0.1.14.
*) Bugfix: the system error message was not logged on Linux.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 03 Feb 2005 19:33:37 +0000 |
parents | a88a3e4e158f |
children | 975f62e77f02 |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 |
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12 #if (NGX_THREADS) |
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13 ngx_mutex_t *ngx_event_timer_mutex; |
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14 #endif |
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17 ngx_thread_volatile ngx_rbtree_t *ngx_event_timer_rbtree; |
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18 ngx_rbtree_t ngx_event_timer_sentinel; |
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19 |
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21 ngx_int_t ngx_event_timer_init(ngx_log_t *log) |
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22 { |
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23 if (ngx_event_timer_rbtree) { |
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24 #if (NGX_THREADS) |
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25 ngx_event_timer_mutex->log = log; |
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26 #endif |
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27 return NGX_OK; |
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28 } |
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29 |
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30 ngx_event_timer_rbtree = &ngx_event_timer_sentinel; |
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32 #if (NGX_THREADS) |
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33 if (!(ngx_event_timer_mutex = ngx_mutex_init(log, 0))) { |
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34 return NGX_ERROR; |
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35 } |
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36 #endif |
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37 |
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38 return NGX_OK; |
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39 } |
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40 |
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41 |
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42 ngx_msec_t ngx_event_find_timer(void) |
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43 { |
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44 ngx_msec_t timer; |
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45 ngx_rbtree_t *node; |
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46 |
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47 if (ngx_event_timer_rbtree == &ngx_event_timer_sentinel) { |
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48 return NGX_TIMER_INFINITE; |
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49 } |
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51 if (ngx_mutex_lock(ngx_event_timer_mutex) == NGX_ERROR) { |
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52 return NGX_TIMER_ERROR; |
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53 } |
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54 |
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55 node = ngx_rbtree_min((ngx_rbtree_t *) ngx_event_timer_rbtree, |
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56 &ngx_event_timer_sentinel); |
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57 |
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58 ngx_mutex_unlock(ngx_event_timer_mutex); |
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59 |
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60 timer = (ngx_msec_t) |
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61 (node->key * NGX_TIMER_RESOLUTION - |
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62 ngx_elapsed_msec / NGX_TIMER_RESOLUTION * NGX_TIMER_RESOLUTION); |
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63 #if 0 |
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64 (node->key * NGX_TIMER_RESOLUTION - ngx_elapsed_msec); |
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65 #endif |
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66 |
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67 return timer > 0 ? timer: 0 ; |
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68 } |
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69 |
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70 |
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71 void ngx_event_expire_timers(ngx_msec_t timer) |
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72 { |
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73 ngx_event_t *ev; |
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74 ngx_rbtree_t *node; |
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75 |
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76 if (timer < 0) { |
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77 /* avoid the endless loop if the time goes backward for some reason */ |
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78 timer = 0; |
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79 } |
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80 |
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81 for ( ;; ) { |
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82 |
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83 if (ngx_event_timer_rbtree == &ngx_event_timer_sentinel) { |
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84 return; |
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85 } |
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86 |
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87 if (ngx_mutex_lock(ngx_event_timer_mutex) == NGX_ERROR) { |
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88 return; |
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89 } |
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90 |
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91 node = ngx_rbtree_min((ngx_rbtree_t *) ngx_event_timer_rbtree, |
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92 &ngx_event_timer_sentinel); |
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93 |
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94 if (node->key <= (ngx_msec_t) |
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95 (ngx_old_elapsed_msec + timer) / NGX_TIMER_RESOLUTION) |
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96 { |
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|
97 ev = (ngx_event_t *) |
206
9aa426375256
nginx-0.0.1-2003-12-05-10:11:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
205
diff
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98 ((char *) node - offsetof(ngx_event_t, rbtree_key)); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
99 |
372
c9fdfccebc49
nginx-0.0.7-2004-06-29-01:03:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
371
diff
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|
100 #if (NGX_THREADS) |
375
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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parents:
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diff
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101 |
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102 if (ngx_threaded && ngx_trylock(ev->lock) == 0) { |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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parents:
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diff
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103 |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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104 /* |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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105 * We can not change the timer of the event that is been |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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parents:
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106 * handling by another thread. And we can not easy walk |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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107 * the rbtree to find a next expired timer so we exit the loop. |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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108 * However it should be rare case when the event that is |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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parents:
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109 * been handling has expired timer. |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
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parents:
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diff
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110 */ |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
374
diff
changeset
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111 |
379
73688d5d7fc3
nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
375
diff
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112 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 113 "event %p is busy in expire timers", ev); |
371
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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114 break; |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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115 } |
372
c9fdfccebc49
nginx-0.0.7-2004-06-29-01:03:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
371
diff
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116 #endif |
371
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
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117 |
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nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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118 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 119 "event timer del: %d: %i", |
371
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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120 ngx_event_ident(ev->data), ev->rbtree_key); |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
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121 |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
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parents:
361
diff
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122 ngx_rbtree_delete((ngx_rbtree_t **) &ngx_event_timer_rbtree, |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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123 &ngx_event_timer_sentinel, |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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124 (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
|
125 |
371
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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126 ngx_mutex_unlock(ngx_event_timer_mutex); |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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|
127 |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
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128 #if (NGX_DEBUG) |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
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129 ev->rbtree_left = NULL; |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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130 ev->rbtree_right = NULL; |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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|
131 ev->rbtree_parent = NULL; |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
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|
132 #endif |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
133 |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
134 ev->timer_set = 0; |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
135 |
375
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
374
diff
changeset
|
136 #if (NGX_THREADS) |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
changeset
|
137 if (ngx_threaded) { |
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
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138 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) { |
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
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|
139 return; |
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
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|
140 } |
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
changeset
|
141 |
374
213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
372
diff
changeset
|
142 ev->posted_timedout = 1; |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
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|
143 ngx_post_event(ev); |
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
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|
144 |
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
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parents:
275
diff
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|
145 ngx_mutex_unlock(ngx_posted_events_mutex); |
375
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
374
diff
changeset
|
146 |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
374
diff
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|
147 ngx_unlock(ev->lock); |
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
374
diff
changeset
|
148 |
306
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
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|
149 continue; |
6b91bfbc4123
nginx-0.0.3-2004-04-05-00:32:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
275
diff
changeset
|
150 } |
375
744ccb59062d
nginx-0.0.7-2004-07-02-19:54:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
374
diff
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|
151 #endif |
270
7bb9562216ce
nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
266
diff
changeset
|
152 |
374
213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
372
diff
changeset
|
153 ev->timedout = 1; |
213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
372
diff
changeset
|
154 |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
155 ev->event_handler(ev); |
374
213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
372
diff
changeset
|
156 |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
157 continue; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
158 } |
374
213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
372
diff
changeset
|
159 |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
160 break; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
161 } |
371
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
162 |
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
163 ngx_mutex_unlock(ngx_event_timer_mutex); |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
164 } |