Copy filter: wake up subrequests after aio operations. Previously, connection write handler was called, resulting in wake up of the active subrequest. This change makes it possible to read data in non-active subrequests as well. For example, this allows SSI to process instructions in non-active subrequests earlier and start additional subrequests if needed, reducing overall response time.

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


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


int
ngx_nonblocking(ngx_socket_t s)
{
    unsigned long  nb = 1;

    return ioctlsocket(s, FIONBIO, &nb);
}


int
ngx_blocking(ngx_socket_t s)
{
    unsigned long  nb = 0;

    return ioctlsocket(s, FIONBIO, &nb);
}


int
ngx_tcp_push(ngx_socket_t s)
{
    return 0;
}