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104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
#ifndef _NGX_EVENT_TIMER_H_INCLUDED_
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#define _NGX_EVENT_TIMER_H_INCLUDED_
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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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#define NGX_TIMER_ERROR (ngx_msec_t) -1
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/*
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* 32 bit timer key value resolution
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*
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* 1 msec - 49 days
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* 10 msec - 1 years 4 months
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* 50 msec - 6 years 10 months
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* 100 msec - 13 years 8 months
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*/
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#define NGX_TIMER_RESOLUTION 1
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ngx_int_t ngx_event_timer_init(ngx_log_t *log);
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ngx_msec_t ngx_event_find_timer(void);
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void ngx_event_expire_timers(ngx_msec_t timer);
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#if (NGX_THREADS)
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extern ngx_mutex_t *ngx_event_timer_mutex;
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#endif
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extern ngx_thread_volatile ngx_rbtree_t *ngx_event_timer_rbtree;
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extern ngx_rbtree_t ngx_event_timer_sentinel;
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ngx_inline static void ngx_event_del_timer(ngx_event_t *ev)
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{
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ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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"event timer del: %d: %d",
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ngx_event_ident(ev->data), ev->rbtree_key);
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#if (NGX_THREADS)
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if (ngx_mutex_lock(ngx_event_timer_mutex) == NGX_ERROR) {
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return;
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}
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#endif
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ngx_rbtree_delete((ngx_rbtree_t **) &ngx_event_timer_rbtree,
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&ngx_event_timer_sentinel,
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(ngx_rbtree_t *) &ev->rbtree_key);
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#if (NGX_THREADS)
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ngx_mutex_unlock(ngx_event_timer_mutex);
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#endif
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#if (NGX_DEBUG)
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ev->rbtree_left = NULL;
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ev->rbtree_right = NULL;
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ev->rbtree_parent = NULL;
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#endif
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ev->timer_set = 0;
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}
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ngx_inline static void ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer)
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{
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if (ev->timer_set) {
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ngx_del_timer(ev);
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}
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ev->rbtree_key = (ngx_int_t)
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(ngx_elapsed_msec / NGX_TIMER_RESOLUTION * NGX_TIMER_RESOLUTION
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+ timer) / NGX_TIMER_RESOLUTION;
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#if 0
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(ngx_elapsed_msec + timer) / NGX_TIMER_RESOLUTION;
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#endif
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ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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"event timer add: %d: %d",
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ngx_event_ident(ev->data), ev->rbtree_key);
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#if (NGX_THREADS)
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if (ngx_mutex_lock(ngx_event_timer_mutex) == NGX_ERROR) {
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return;
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}
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#endif
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ngx_rbtree_insert((ngx_rbtree_t **) &ngx_event_timer_rbtree,
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&ngx_event_timer_sentinel,
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(ngx_rbtree_t *) &ev->rbtree_key);
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#if (NGX_THREADS)
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ngx_mutex_unlock(ngx_event_timer_mutex);
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#endif
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ev->timer_set = 1;
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}
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#endif /* _NGX_EVENT_TIMER_H_INCLUDED_ */
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