Mercurial > hg > nginx-quic
view src/event/ngx_event_timer.c @ 95:b48066122884
nginx-0.0.1-2003-05-23-15:53:01 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 23 May 2003 11:53:01 +0000 |
parents | 637625a2acdb |
children | a23d010f356d |
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#include <ngx_config.h> #include <ngx_core.h> #include <ngx_log.h> #include <ngx_alloc.h> #include <ngx_connection.h> #include <ngx_event.h> #include <ngx_event_timer.h> static ngx_event_t *ngx_timer_queue; static int ngx_timer_cur_queue; static int ngx_timer_queue_num; int ngx_event_timer_init(ngx_log_t *log) { int i; ngx_event_conf_t *ecf; ecf = ngx_event_get_conf(ngx_event_module_ctx); ngx_timer_queue_num = ecf->timer_queues; ngx_timer_cur_queue = 0; ngx_test_null(ngx_timer_queue, ngx_alloc(ngx_timer_queue_num * sizeof(ngx_event_t), log), NGX_ERROR); for (i = 0; i < ngx_timer_queue_num; i++) { ngx_timer_queue[i].timer_prev = &ngx_timer_queue[i]; ngx_timer_queue[i].timer_next = &ngx_timer_queue[i]; } return NGX_OK;; } void ngx_event_timer_done(ngx_log_t *log) { ngx_free(ngx_timer_queue); } void ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer) { ngx_event_t *e; #if (NGX_DEBUG_EVENT) ngx_connection_t *c = (ngx_connection_t *) ev->data; ngx_log_debug(ev->log, "set timer: %d:%d, slot: %d" _ c->fd _ timer _ ngx_timer_cur_queue); #endif if (ev->timer_next || ev->timer_prev) { ngx_log_error(NGX_LOG_ALERT, ev->log, 0, "timer already set"); return; } for (e = ngx_timer_queue[ngx_timer_cur_queue].timer_next; e != &ngx_timer_queue[ngx_timer_cur_queue] && timer > e->timer_delta; e = e->timer_next) { timer -= e->timer_delta; } ngx_timer_cur_queue++; if (ngx_timer_cur_queue >= ngx_timer_queue_num) { ngx_timer_cur_queue = 0; } ev->timer_delta = timer; ev->timer_next = e; ev->timer_prev = e->timer_prev; e->timer_prev->timer_next = ev; e->timer_prev = ev; } int ngx_event_find_timer(void) { int i; ngx_msec_t timer; timer = NGX_MAX_MSEC; for (i = 0; i < ngx_timer_queue_num; i++) { if (ngx_timer_queue[i].timer_next == &ngx_timer_queue[i]) { continue; } if (timer > ngx_timer_queue[i].timer_next->timer_delta) { timer = ngx_timer_queue[i].timer_next->timer_delta; } } if (timer == NGX_MAX_MSEC) { return 0; } else { return timer; } } void ngx_event_expire_timers(ngx_msec_t timer) { int i; ngx_msec_t delta; ngx_event_t *ev; for (i = 0; i < ngx_timer_queue_num; i++) { delta = timer; for ( ;; ) { ev = ngx_timer_queue[i].timer_next; if (ev == &ngx_timer_queue[i]) { break; } if (ev->timer_delta > delta) { ev->timer_delta -= delta; break; } delta -= ev->timer_delta; ngx_del_timer(ev); ev->timer_set = 0; if (ev->delayed) { ev->delayed = 0; if (ev->ready == 0) { continue; } } else { ev->timedout = 1; } ev->event_handler(ev); } } }