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view src/event/ngx_event_posted.h @ 5821:3f5f0ab59b35

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Events: processing of posted events changed from LIFO to FIFO. In theory, this can provide a bit better distribution of latencies. Also it simplifies the code, since ngx_queue_t is now used instead of custom implementation.
author Valentin Bartenev <vbart@nginx.com>
date Mon, 01 Sep 2014 18:20:18 +0400
parents 3377f9459e99
children 3d4730eada9c
line wrap: on
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_POSTED_H_INCLUDED_
#define _NGX_EVENT_POSTED_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>


#define ngx_post_event(ev, q)                                                 \
                                                                              \
    if (!ev->posted) {                                                        \
        ev->posted = 1;                                                       \
        ngx_queue_insert_tail(q, &ev->queue);                                 \
                                                                              \
        ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "post event %p", ev);  \
                                                                              \
    } else  {                                                                 \
        ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,                        \
                       "update posted event %p", ev);                         \
    }


#define ngx_delete_posted_event(ev)                                           \
                                                                              \
    ev->posted = 0;                                                           \
    ngx_queue_remove(&ev->queue);                                             \
                                                                              \
    ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,                            \
                   "delete posted event %p", ev);



void ngx_event_process_posted(ngx_cycle_t *cycle, ngx_queue_t *posted);


extern ngx_queue_t  ngx_posted_accept_events;
extern ngx_queue_t  ngx_posted_events;


#endif /* _NGX_EVENT_POSTED_H_INCLUDED_ */