view src/event/ngx_event_posted.c @ 6059:c81d79a7befd

SPDY: always push pending data. This helps to avoid suboptimal behavior when a client waits for a control frame or more data to increase window size, but the frames have been delayed in the socket buffer. The delays can be caused by bad interaction between Nagle's algorithm on nginx side and delayed ACK on the client side or by TCP_CORK/TCP_NOPUSH if SPDY was working without SSL and sendfile() was used. The pushing code is now very similar to ngx_http_set_keepalive().
author Valentin Bartenev <vbart@nginx.com>
date Mon, 23 Mar 2015 21:04:13 +0300
parents 3f5f0ab59b35
children 9d2ad2fb4423
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


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


ngx_queue_t  ngx_posted_accept_events;
ngx_queue_t  ngx_posted_events;


void
ngx_event_process_posted(ngx_cycle_t *cycle, ngx_queue_t *posted)
{
    ngx_queue_t  *q;
    ngx_event_t  *ev;

    while (!ngx_queue_empty(posted)) {

        q = ngx_queue_head(posted);
        ev = ngx_queue_data(q, ngx_event_t, queue);

        ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
                      "posted event %p", ev);

        ngx_delete_posted_event(ev);

        ev->handler(ev);
    }
}