2003-01-22 01:36:01 +08:00
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2004-09-28 16:34:51 +08:00
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/*
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2004-09-30 00:00:49 +08:00
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* Copyright (C) Igor Sysoev
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2004-09-28 16:34:51 +08:00
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*/
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2003-01-24 02:47:54 +08:00
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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2004-02-24 04:57:12 +08:00
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#if (NGX_THREADS)
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2004-02-26 04:16:15 +08:00
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ngx_mutex_t *ngx_event_timer_mutex;
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2004-02-24 04:57:12 +08:00
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#endif
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2003-12-15 04:10:27 +08:00
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2005-10-10 20:59:41 +08:00
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ngx_thread_volatile ngx_rbtree_t ngx_event_timer_rbtree;
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static ngx_rbtree_node_t ngx_event_timer_sentinel;
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2003-12-04 22:53:00 +08:00
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2005-02-22 22:40:13 +08:00
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ngx_int_t
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ngx_event_timer_init(ngx_log_t *log)
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2003-12-04 22:53:00 +08:00
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{
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2005-10-10 20:59:41 +08:00
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ngx_event_timer_rbtree.root = &ngx_event_timer_sentinel;
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ngx_event_timer_rbtree.sentinel = &ngx_event_timer_sentinel;
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2006-11-16 23:34:52 +08:00
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ngx_event_timer_rbtree.insert = ngx_rbtree_insert_timer_value;
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2005-10-10 20:59:41 +08:00
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2004-03-01 05:03:02 +08:00
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#if (NGX_THREADS)
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2005-10-10 20:59:41 +08:00
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if (ngx_event_timer_mutex) {
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2004-02-26 04:16:15 +08:00
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ngx_event_timer_mutex->log = log;
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return NGX_OK;
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2003-12-09 23:08:11 +08:00
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}
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2005-03-19 20:38:37 +08:00
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ngx_event_timer_mutex = ngx_mutex_init(log, 0);
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if (ngx_event_timer_mutex == NULL) {
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2004-02-26 04:16:15 +08:00
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return NGX_ERROR;
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}
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2005-10-10 20:59:41 +08:00
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2004-03-01 05:03:02 +08:00
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#endif
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2004-02-26 04:16:15 +08:00
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return NGX_OK;
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2003-12-04 22:53:00 +08:00
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}
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2005-02-22 22:40:13 +08:00
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ngx_msec_t
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ngx_event_find_timer(void)
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2003-12-04 22:53:00 +08:00
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{
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2005-10-12 21:50:36 +08:00
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ngx_msec_int_t timer;
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ngx_rbtree_node_t *node, *root, *sentinel;
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2003-12-04 22:53:00 +08:00
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2005-10-10 20:59:41 +08:00
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if (ngx_event_timer_rbtree.root == &ngx_event_timer_sentinel) {
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2004-04-15 04:34:05 +08:00
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return NGX_TIMER_INFINITE;
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2003-12-19 20:45:27 +08:00
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}
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2005-10-19 20:33:58 +08:00
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ngx_mutex_lock(ngx_event_timer_mutex);
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2004-02-26 04:16:15 +08:00
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2005-10-10 20:59:41 +08:00
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root = ngx_event_timer_rbtree.root;
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sentinel = ngx_event_timer_rbtree.sentinel;
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node = ngx_rbtree_min(root, sentinel);
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2003-12-04 22:53:00 +08:00
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2004-02-26 04:16:15 +08:00
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ngx_mutex_unlock(ngx_event_timer_mutex);
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2005-10-19 20:33:58 +08:00
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timer = (ngx_msec_int_t) node->key - (ngx_msec_int_t) ngx_current_msec;
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2004-04-15 01:44:28 +08:00
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2005-10-10 20:59:41 +08:00
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return (ngx_msec_t) (timer > 0 ? timer : 0);
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2003-12-04 22:53:00 +08:00
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}
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2005-02-22 22:40:13 +08:00
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void
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2005-10-07 21:30:52 +08:00
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ngx_event_expire_timers(void)
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2003-12-04 22:53:00 +08:00
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{
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2005-10-10 20:59:41 +08:00
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ngx_event_t *ev;
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ngx_rbtree_node_t *node, *root, *sentinel;
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sentinel = ngx_event_timer_rbtree.sentinel;
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2003-12-04 22:53:00 +08:00
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for ( ;; ) {
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2005-10-19 20:33:58 +08:00
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ngx_mutex_lock(ngx_event_timer_mutex);
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2003-12-04 22:53:00 +08:00
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2005-10-10 20:59:41 +08:00
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root = ngx_event_timer_rbtree.root;
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if (root == sentinel) {
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2004-02-26 04:16:15 +08:00
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return;
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}
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2005-10-10 20:59:41 +08:00
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node = ngx_rbtree_min(root, sentinel);
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2003-12-19 20:45:27 +08:00
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2005-10-07 21:30:52 +08:00
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/* node->key <= ngx_current_time */
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2005-10-19 20:33:58 +08:00
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if ((ngx_msec_int_t) node->key - (ngx_msec_int_t) ngx_current_msec <= 0)
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2003-12-04 22:53:00 +08:00
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{
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2005-10-10 20:59:41 +08:00
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ev = (ngx_event_t *) ((char *) node - offsetof(ngx_event_t, timer));
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2003-12-04 22:53:00 +08:00
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2004-06-29 05:03:14 +08:00
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#if (NGX_THREADS)
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2004-07-02 23:54:34 +08:00
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if (ngx_threaded && ngx_trylock(ev->lock) == 0) {
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/*
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* We can not change the timer of the event that is been
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* handling by another thread. And we can not easy walk
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* the rbtree to find a next expired timer so we exit the loop.
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* However it should be rare case when the event that is
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* been handling has expired timer.
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*/
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2004-07-07 00:12:16 +08:00
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ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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2004-11-11 22:07:14 +08:00
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"event %p is busy in expire timers", ev);
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2004-06-29 00:05:02 +08:00
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break;
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}
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2004-06-29 05:03:14 +08:00
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#endif
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2004-06-29 00:05:02 +08:00
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ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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2005-10-07 21:30:52 +08:00
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"event timer del: %d: %M",
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2005-10-10 20:59:41 +08:00
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ngx_event_ident(ev->data), ev->timer.key);
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2004-06-29 00:05:02 +08:00
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2005-10-10 20:59:41 +08:00
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ngx_rbtree_delete(&ngx_event_timer_rbtree, &ev->timer);
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2004-06-29 00:05:02 +08:00
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ngx_mutex_unlock(ngx_event_timer_mutex);
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2003-12-04 22:53:00 +08:00
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2004-06-29 00:05:02 +08:00
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#if (NGX_DEBUG)
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2005-10-10 20:59:41 +08:00
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ev->timer.left = NULL;
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ev->timer.right = NULL;
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ev->timer.parent = NULL;
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2004-06-29 00:05:02 +08:00
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#endif
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ev->timer_set = 0;
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2003-12-04 22:53:00 +08:00
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2004-07-02 23:54:34 +08:00
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#if (NGX_THREADS)
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2004-04-05 04:32:09 +08:00
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if (ngx_threaded) {
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2004-07-02 13:47:00 +08:00
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ev->posted_timedout = 1;
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2004-04-05 04:32:09 +08:00
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2005-10-19 20:33:58 +08:00
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ngx_post_event(ev, &ngx_posted_events);
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2004-07-02 23:54:34 +08:00
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ngx_unlock(ev->lock);
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2004-04-05 04:32:09 +08:00
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continue;
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}
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2004-07-02 23:54:34 +08:00
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#endif
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2004-02-26 04:16:15 +08:00
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2004-07-02 13:47:00 +08:00
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ev->timedout = 1;
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nginx-0.1.29-RELEASE import
*) Feature: the ngx_http_ssi_module supports "include virtual" command.
*) Feature: the ngx_http_ssi_module supports the condition command like
'if expr="$NAME"' and "else" and "endif" commands. Only one nested
level is supported.
*) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and
DATE_GMT variables and "config timefmt" command.
*) Feature: the "ssi_ignore_recycled_buffers" directive.
*) Bugfix: the "echo" command did not show the default value for the
empty QUERY_STRING variable.
*) Change: the ngx_http_proxy_module was rewritten.
*) Feature: the "proxy_redirect", "proxy_pass_request_headers",
"proxy_pass_request_body", and "proxy_method" directives.
*) Feature: the "proxy_set_header" directive. The "proxy_x_var" was
canceled and must be replaced with the proxy_set_header directive.
*) Change: the "proxy_preserve_host" is canceled and must be replaced
with the "proxy_set_header Host $host" and the "proxy_redirect off"
directives, the "proxy_set_header Host $host:$proxy_port" directive
and the appropriate proxy_redirect directives.
*) Change: the "proxy_set_x_real_ip" is canceled and must be replaced
with the "proxy_set_header X-Real-IP $remote_addr" directive.
*) Change: the "proxy_add_x_forwarded_for" is canceled and must be
replaced with
the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for"
directive.
*) Change: the "proxy_set_x_url" is canceled and must be replaced with
the "proxy_set_header X-URL http://$host:$server_port$request_uri"
directive.
*) Feature: the "fastcgi_param" directive.
*) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params"
directive are canceled and must be replaced with the fastcgi_param
directives.
*) Feature: the "index" directive can use the variables.
*) Feature: the "index" directive can be used at http and server levels.
*) Change: the last index only in the "index" directive can be absolute.
*) Feature: the "rewrite" directive can use the variables.
*) Feature: the "internal" directive.
*) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR,
SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME,
REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables.
*) Change: nginx now passes the invalid lines in a client request
headers or a backend response header.
*) Bugfix: if the backend did not transfer response for a long time and
the "send_timeout" was less than "proxy_read_timeout", then nginx
returned the 408 response.
*) Bugfix: the segmentation fault was occurred if the backend sent an
invalid line in response header; the bug had appeared in 0.1.26.
*) Bugfix: the segmentation fault may occurred in FastCGI fault
tolerance configuration.
*) Bugfix: the "expires" directive did not remove the previous
"Expires" and "Cache-Control" headers.
*) Bugfix: nginx did not take into account trailing dot in "Host"
header line.
*) Bugfix: the ngx_http_auth_module did not work under Linux.
*) Bugfix: the rewrite directive worked incorrectly, if the arguments
were in a request.
*) Bugfix: nginx could not be built on MacOS X.
2005-05-12 22:58:06 +08:00
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ev->handler(ev);
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2004-07-02 13:47:00 +08:00
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2003-12-04 22:53:00 +08:00
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continue;
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}
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2004-07-02 13:47:00 +08:00
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2003-12-04 22:53:00 +08:00
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break;
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}
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2004-06-29 00:05:02 +08:00
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ngx_mutex_unlock(ngx_event_timer_mutex);
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2003-12-04 22:53:00 +08:00
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}
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