2003-01-22 01:36:01 +08:00
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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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2003-12-15 04:10:27 +08:00
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/*
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* TODO: in multithreaded enviroment all timer operations must be
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* protected by the single mutex
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*/
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2003-12-04 22:53:00 +08:00
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ngx_rbtree_t *ngx_event_timer_rbtree;
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2003-12-06 01:07:27 +08:00
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ngx_rbtree_t ngx_event_timer_sentinel;
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2003-12-04 22:53:00 +08:00
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int ngx_event_timer_init(ngx_cycle_t *cycle)
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{
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2003-12-09 23:08:11 +08:00
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if (cycle->old_cycle) {
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return NGX_OK;
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}
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2003-12-06 01:07:27 +08:00
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ngx_event_timer_rbtree = &ngx_event_timer_sentinel;
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ngx_event_timer_sentinel.left = &ngx_event_timer_sentinel;
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ngx_event_timer_sentinel.right = &ngx_event_timer_sentinel;
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ngx_event_timer_sentinel.parent = &ngx_event_timer_sentinel;
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2003-12-04 22:53:00 +08:00
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return NGX_OK;
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}
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void ngx_event_timer_done(ngx_cycle_t *cycle)
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{
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}
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2003-12-05 15:11:46 +08:00
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ngx_msec_t 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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ngx_rbtree_t *node;
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2003-12-06 01:07:27 +08:00
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node = ngx_rbtree_min(ngx_event_timer_rbtree, &ngx_event_timer_sentinel);
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2003-12-04 22:53:00 +08:00
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2003-12-06 01:07:27 +08:00
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if (node == &ngx_event_timer_sentinel) {
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2003-12-04 22:53:00 +08:00
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return 0;
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} else {
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2003-12-05 15:11:46 +08:00
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return (ngx_msec_t)
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2003-12-15 04:10:27 +08:00
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(node->key * NGX_TIMER_RESOLUTION -
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ngx_elapsed_msec / NGX_TIMER_RESOLUTION * NGX_TIMER_RESOLUTION);
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#if 0
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2003-12-05 15:11:46 +08:00
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(node->key * NGX_TIMER_RESOLUTION - ngx_elapsed_msec);
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2003-12-15 04:10:27 +08:00
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#endif
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2003-12-04 22:53:00 +08:00
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}
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}
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void ngx_event_expire_timers(ngx_msec_t timer)
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{
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ngx_event_t *ev;
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ngx_rbtree_t *node;
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for ( ;; ) {
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2003-12-06 01:07:27 +08:00
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node = ngx_rbtree_min(ngx_event_timer_rbtree,
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&ngx_event_timer_sentinel);
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2003-12-04 22:53:00 +08:00
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2003-12-06 01:07:27 +08:00
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if (node == &ngx_event_timer_sentinel) {
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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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2003-12-05 15:11:46 +08:00
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if ((ngx_msec_t) node->key <= (ngx_msec_t)
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2003-12-06 01:07:27 +08:00
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(ngx_old_elapsed_msec + timer) / NGX_TIMER_RESOLUTION)
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2003-12-04 22:53:00 +08:00
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{
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ev = (ngx_event_t *)
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2003-12-05 15:11:46 +08:00
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((char *) node - offsetof(ngx_event_t, rbtree_key));
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2003-12-04 22:53:00 +08:00
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ngx_del_timer(ev);
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if (ev->delayed) {
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ev->delayed = 0;
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if (ev->ready == 0) {
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continue;
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}
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} else {
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ev->timedout = 1;
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}
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ev->event_handler(ev);
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continue;
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}
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break;
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}
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}
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