nginx 0.8.16 *) Feature: the "image_filter_transparency" directive. *) Bugfix: "addition_types" directive was incorrectly named "addtion_types". *) Bugfix: resolver cache poisoning. Thanks to Matthew Dempsky. *) Bugfix: memory leak in resolver. Thanks to Matthew Dempsky. *) Bugfix: invalid request line in $request variable was written in access_log only if error_log was set to "info" or "debug" level. *) Bugfix: in PNG alpha-channel support in the ngx_http_image_filter_module. *) Bugfix: nginx always added "Vary: Accept-Encoding" response header line, if both "gzip_static" and "gzip_vary" were on. *) Bugfix: in UTF-8 encoding support by "try_files" directive in nginx/Windows. *) Bugfix: in "post_action" directive usage; the bug had appeared in 0.8.11. Thanks to Igor Artemiev.

/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_CHANNEL_H_INCLUDED_
#define _NGX_CHANNEL_H_INCLUDED_


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


typedef struct {
     ngx_uint_t  command;
     ngx_pid_t   pid;
     ngx_int_t   slot;
     ngx_fd_t    fd;
} ngx_channel_t;


ngx_int_t ngx_write_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size,
    ngx_log_t *log);
ngx_int_t ngx_read_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size,
    ngx_log_t *log);
ngx_int_t ngx_add_channel_event(ngx_cycle_t *cycle, ngx_fd_t fd,
    ngx_int_t event, ngx_event_handler_pt handler);
void ngx_close_channel(ngx_fd_t *fd, ngx_log_t *log);


#endif /* _NGX_CHANNEL_H_INCLUDED_ */