Mercurial > hg > nginx-vendor-0-6
view src/event/ngx_event_timer.c @ 376:d13234035cad NGINX_0_6_32
nginx 0.6.32
*) Change: the "none" parameter in the "ssl_session_cache" directive;
now this is default parameter.
Thanks to Rob Mueller.
*) Change: now the 0x00-0x1F, '"' and '\' characters are escaped as
\xXX in an access_log.
Thanks to Maxim Dounin.
*) Change: now nginx allows several "Host" request header line.
*) Feature: the "modified" flag in the "expires" directive.
*) Feature: the $uid_got and $uid_set variables may be used at any
request processing stage.
*) Feature: the $hostname variable.
Thanks to Andrei Nigmatulin.
*) Feature: DESTDIR support.
Thanks to Todd A. Fisher and Andras Voroskoi.
*) Bugfix: if sub_filter and SSI were used together, then responses
might were transferred incorrectly.
*) Bugfix: large SSI inclusions might be truncated.
*) Bugfix: the "proxy_pass" directive did not work with the HTTPS
protocol; the bug had appeared in 0.6.9.
*) Bugfix: worker processes might not catch reconfiguration and log
rotation signals.
*) Bugfix: nginx could not be built on latest Fedora 9 Linux.
Thanks to Roxis.
*) Bugfix: a segmentation fault might occur in worker process on Linux,
if keepalive was enabled.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 07 Jul 2008 00:00:00 +0400 |
parents | b743d290eb3b |
children |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #if (NGX_THREADS) ngx_mutex_t *ngx_event_timer_mutex; #endif ngx_thread_volatile ngx_rbtree_t ngx_event_timer_rbtree; static ngx_rbtree_node_t ngx_event_timer_sentinel; /* * the event timer rbtree may contain the duplicate keys, however, * it should not be a problem, because we use the rbtree to find * a minimum timer value only */ ngx_int_t ngx_event_timer_init(ngx_log_t *log) { ngx_rbtree_init(&ngx_event_timer_rbtree, &ngx_event_timer_sentinel, ngx_rbtree_insert_timer_value); #if (NGX_THREADS) if (ngx_event_timer_mutex) { ngx_event_timer_mutex->log = log; return NGX_OK; } ngx_event_timer_mutex = ngx_mutex_init(log, 0); if (ngx_event_timer_mutex == NULL) { return NGX_ERROR; } #endif return NGX_OK; } ngx_msec_t ngx_event_find_timer(void) { ngx_msec_int_t timer; ngx_rbtree_node_t *node, *root, *sentinel; if (ngx_event_timer_rbtree.root == &ngx_event_timer_sentinel) { return NGX_TIMER_INFINITE; } ngx_mutex_lock(ngx_event_timer_mutex); root = ngx_event_timer_rbtree.root; sentinel = ngx_event_timer_rbtree.sentinel; node = ngx_rbtree_min(root, sentinel); ngx_mutex_unlock(ngx_event_timer_mutex); timer = (ngx_msec_int_t) node->key - (ngx_msec_int_t) ngx_current_msec; return (ngx_msec_t) (timer > 0 ? timer : 0); } void ngx_event_expire_timers(void) { ngx_event_t *ev; ngx_rbtree_node_t *node, *root, *sentinel; sentinel = ngx_event_timer_rbtree.sentinel; for ( ;; ) { ngx_mutex_lock(ngx_event_timer_mutex); root = ngx_event_timer_rbtree.root; if (root == sentinel) { return; } node = ngx_rbtree_min(root, sentinel); /* node->key <= ngx_current_time */ if ((ngx_msec_int_t) node->key - (ngx_msec_int_t) ngx_current_msec <= 0) { ev = (ngx_event_t *) ((char *) node - offsetof(ngx_event_t, timer)); #if (NGX_THREADS) if (ngx_threaded && ngx_trylock(ev->lock) == 0) { /* * We can not change the timer of the event that is been * handling by another thread. And we can not easy walk * the rbtree to find a next expired timer so we exit the loop. * However it should be rare case when the event that is * been handling has expired timer. */ ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, "event %p is busy in expire timers", ev); break; } #endif ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, "event timer del: %d: %M", ngx_event_ident(ev->data), ev->timer.key); ngx_rbtree_delete(&ngx_event_timer_rbtree, &ev->timer); ngx_mutex_unlock(ngx_event_timer_mutex); #if (NGX_DEBUG) ev->timer.left = NULL; ev->timer.right = NULL; ev->timer.parent = NULL; #endif ev->timer_set = 0; #if (NGX_THREADS) if (ngx_threaded) { ev->posted_timedout = 1; ngx_post_event(ev, &ngx_posted_events); ngx_unlock(ev->lock); continue; } #endif ev->timedout = 1; ev->handler(ev); continue; } break; } ngx_mutex_unlock(ngx_event_timer_mutex); }