Mercurial > hg > nginx-quic
annotate src/event/ngx_event_timer.c @ 583:4e296b7d25bf release-0.3.13
nginx-0.3.13-RELEASE import
*) Feature: the IMAP/POP3 proxy supports STARTTLS and STLS.
*) Bugfix: the IMAP/POP3 proxy did not work with the select, poll, and
/dev/poll methods.
*) Bugfix: in SSI handling.
*) Bugfix: now Solaris sendfilev() is not used to transfer the client
request body to FastCGI-server via the unix domain socket.
*) Bugfix: the "auth_basic" directive did not disable the
authorization; the bug had appeared in 0.3.11.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 05 Dec 2005 13:18:09 +0000 |
parents | 9c2f3ed7a247 |
children | f9b9b84a8e18 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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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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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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16 |
559 | 17 ngx_thread_volatile ngx_rbtree_t ngx_event_timer_rbtree; |
18 static ngx_rbtree_node_t ngx_event_timer_sentinel; | |
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19 |
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20 |
493 | 21 ngx_int_t |
22 ngx_event_timer_init(ngx_log_t *log) | |
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23 { |
559 | 24 ngx_event_timer_rbtree.root = &ngx_event_timer_sentinel; |
25 ngx_event_timer_rbtree.sentinel = &ngx_event_timer_sentinel; | |
26 | |
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27 #if (NGX_THREADS) |
559 | 28 |
29 if (ngx_event_timer_mutex) { | |
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30 ngx_event_timer_mutex->log = log; |
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31 return NGX_OK; |
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32 } |
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33 |
501 | 34 ngx_event_timer_mutex = ngx_mutex_init(log, 0); |
35 if (ngx_event_timer_mutex == NULL) { | |
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36 return NGX_ERROR; |
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37 } |
559 | 38 |
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39 #endif |
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40 |
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41 return NGX_OK; |
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42 } |
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43 |
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44 |
493 | 45 ngx_msec_t |
46 ngx_event_find_timer(void) | |
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47 { |
561 | 48 ngx_msec_int_t timer; |
49 ngx_rbtree_node_t *node, *root, *sentinel; | |
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50 |
559 | 51 if (ngx_event_timer_rbtree.root == &ngx_event_timer_sentinel) { |
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52 return NGX_TIMER_INFINITE; |
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53 } |
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54 |
563 | 55 ngx_mutex_lock(ngx_event_timer_mutex); |
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56 |
559 | 57 root = ngx_event_timer_rbtree.root; |
58 sentinel = ngx_event_timer_rbtree.sentinel; | |
59 | |
60 node = ngx_rbtree_min(root, sentinel); | |
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61 |
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62 ngx_mutex_unlock(ngx_event_timer_mutex); |
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63 |
563 | 64 timer = (ngx_msec_int_t) node->key - (ngx_msec_int_t) ngx_current_msec; |
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65 |
559 | 66 return (ngx_msec_t) (timer > 0 ? timer : 0); |
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67 } |
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68 |
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69 |
493 | 70 void |
557 | 71 ngx_event_expire_timers(void) |
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72 { |
559 | 73 ngx_event_t *ev; |
74 ngx_rbtree_node_t *node, *root, *sentinel; | |
75 | |
76 sentinel = ngx_event_timer_rbtree.sentinel; | |
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77 |
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78 for ( ;; ) { |
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79 |
563 | 80 ngx_mutex_lock(ngx_event_timer_mutex); |
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81 |
559 | 82 root = ngx_event_timer_rbtree.root; |
83 | |
84 if (root == sentinel) { | |
85 return; | |
86 } | |
87 | |
88 node = ngx_rbtree_min(root, sentinel); | |
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89 |
557 | 90 /* node->key <= ngx_current_time */ |
91 | |
563 | 92 if ((ngx_msec_int_t) node->key - (ngx_msec_int_t) ngx_current_msec <= 0) |
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93 { |
559 | 94 ev = (ngx_event_t *) ((char *) node - offsetof(ngx_event_t, timer)); |
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95 |
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96 #if (NGX_THREADS) |
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97 |
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98 if (ngx_threaded && ngx_trylock(ev->lock) == 0) { |
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99 |
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100 /* |
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101 * We can not change the timer of the event that is been |
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102 * handling by another thread. And we can not easy walk |
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103 * the rbtree to find a next expired timer so we exit the loop. |
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104 * However it should be rare case when the event that is |
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105 * been handling has expired timer. |
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106 */ |
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107 |
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108 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
461 | 109 "event %p is busy in expire timers", ev); |
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110 break; |
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111 } |
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112 #endif |
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113 |
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114 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
557 | 115 "event timer del: %d: %M", |
559 | 116 ngx_event_ident(ev->data), ev->timer.key); |
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117 |
559 | 118 ngx_rbtree_delete(&ngx_event_timer_rbtree, &ev->timer); |
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119 |
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120 ngx_mutex_unlock(ngx_event_timer_mutex); |
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121 |
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122 #if (NGX_DEBUG) |
559 | 123 ev->timer.left = NULL; |
124 ev->timer.right = NULL; | |
125 ev->timer.parent = NULL; | |
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126 #endif |
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127 |
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128 ev->timer_set = 0; |
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129 |
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130 #if (NGX_THREADS) |
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131 if (ngx_threaded) { |
563 | 132 ev->posted_timedout = 1; |
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133 |
563 | 134 ngx_post_event(ev, &ngx_posted_events); |
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135 |
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136 ngx_unlock(ev->lock); |
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137 |
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138 continue; |
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139 } |
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140 #endif |
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141 |
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372
diff
changeset
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142 ev->timedout = 1; |
213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
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parents:
372
diff
changeset
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143 |
509 | 144 ev->handler(ev); |
374
213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
372
diff
changeset
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145 |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
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146 continue; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
147 } |
374
213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
372
diff
changeset
|
148 |
205
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
149 break; |
4a9a2b1dd6fa
nginx-0.0.1-2003-12-04-17:53:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
195
diff
changeset
|
150 } |
371
780e93985b93
nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
151 |
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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152 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
|
153 } |