Mercurial > hg > nginx-vendor-current
view src/event/ngx_event_timer.h @ 16:74b1868dd3cd NGINX_0_1_8
nginx 0.1.8
*) Bugfix: in the ngx_http_autoindex_module if the long file names were
in the listing.
*) Feature: the "^~" modifier in the location directive.
*) Feature: the proxy_max_temp_file_size directive.
author | Igor Sysoev <http://sysoev.ru> |
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date | Sat, 20 Nov 2004 00:00:00 +0300 |
parents | 46833bd150cb |
children | 41ccba1aba45 |
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/* * Copyright (C) Igor Sysoev */ #ifndef _NGX_EVENT_TIMER_H_INCLUDED_ #define _NGX_EVENT_TIMER_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #define NGX_TIMER_INFINITE -1 #define NGX_TIMER_ERROR -2 /* * 32 bit timer key value resolution * * 1 msec - 24 days * 10 msec - 8 months * 50 msec - 3 years 5 months * 100 msec - 6 years 10 months */ #define NGX_TIMER_RESOLUTION 1 ngx_int_t ngx_event_timer_init(ngx_log_t *log); ngx_msec_t ngx_event_find_timer(void); void ngx_event_expire_timers(ngx_msec_t timer); #if (NGX_THREADS) extern ngx_mutex_t *ngx_event_timer_mutex; #endif extern ngx_thread_volatile ngx_rbtree_t *ngx_event_timer_rbtree; extern ngx_rbtree_t ngx_event_timer_sentinel; static ngx_inline void ngx_event_del_timer(ngx_event_t *ev) { ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, "event timer del: %d: %d", ngx_event_ident(ev->data), ev->rbtree_key); if (ngx_mutex_lock(ngx_event_timer_mutex) == NGX_ERROR) { return; } ngx_rbtree_delete((ngx_rbtree_t **) &ngx_event_timer_rbtree, &ngx_event_timer_sentinel, (ngx_rbtree_t *) &ev->rbtree_key); ngx_mutex_unlock(ngx_event_timer_mutex); #if (NGX_DEBUG) ev->rbtree_left = NULL; ev->rbtree_right = NULL; ev->rbtree_parent = NULL; #endif ev->timer_set = 0; } static ngx_inline void ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer) { ngx_int_t key; key = (ngx_int_t) (ngx_elapsed_msec / NGX_TIMER_RESOLUTION * NGX_TIMER_RESOLUTION + timer) / NGX_TIMER_RESOLUTION; #if 0 (ngx_elapsed_msec + timer) / NGX_TIMER_RESOLUTION; #endif if (ev->timer_set) { /* * Use the previous timer value if a difference between them is less * then 100 milliseconds. It allows to minimize the rbtree operations * for the fast connections. */ if (abs(key - ev->rbtree_key) < 100 / NGX_TIMER_RESOLUTION) { ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, "event timer: %d, old: %i, new: %i", ngx_event_ident(ev->data), ev->rbtree_key, key); return; } ngx_del_timer(ev); } ev->rbtree_key = key; ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, "event timer add: %d: %i", ngx_event_ident(ev->data), ev->rbtree_key); if (ngx_mutex_lock(ngx_event_timer_mutex) == NGX_ERROR) { return; } ngx_rbtree_insert((ngx_rbtree_t **) &ngx_event_timer_rbtree, &ngx_event_timer_sentinel, (ngx_rbtree_t *) &ev->rbtree_key); ngx_mutex_unlock(ngx_event_timer_mutex); ev->timer_set = 1; } #endif /* _NGX_EVENT_TIMER_H_INCLUDED_ */