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view src/http/ngx_http_upstream_round_robin.h @ 260:0effe91f6083 NGINX_0_5_0

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nginx 0.5.0 *) Change: the parameters in the "%name" form in the "log_format" directive are not supported anymore. *) Change: the "proxy_upstream_max_fails", "proxy_upstream_fail_timeout", "fastcgi_upstream_max_fails", "fastcgi_upstream_fail_timeout", "memcached_upstream_max_fails", and "memcached_upstream_fail_timeout" directives are not supported anymore. *) Feature: the "server" directive in the "upstream" context supports the "max_fails", "fail_timeout", and "down" parameters. *) Feature: the "ip_hash" directive inside the "upstream" block. *) Feature: the WAIT status in the "Auth-Status" header line of the IMAP/POP3 proxy authentication server response. *) Bugfix: nginx could not be built on 64-bit platforms; bug appeared in 0.4.14.
author Igor Sysoev <http://sysoev.ru>
date Mon, 04 Dec 2006 00:00:00 +0300
parents
children 29a6403156b0
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/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_
#define _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_


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


typedef struct {
    struct sockaddr                *sockaddr;
    socklen_t                       socklen;
    ngx_str_t                       name;

    ngx_uint_t                      current_weight;
    ngx_uint_t                      weight;

    ngx_uint_t                      fails;
    time_t                          accessed;

    ngx_uint_t                      max_fails;
    time_t                          fail_timeout;

    ngx_uint_t                      down;          /* unsigned  down:1; */

#if (NGX_SSL)
    ngx_ssl_session_t              *ssl_session;
#endif
} ngx_http_upstream_rr_peer_t;


typedef struct {
    ngx_uint_t                      current;

    ngx_uint_t                      number;
    ngx_uint_t                      last_cached;

 /* ngx_mutex_t                    *mutex; */
    ngx_connection_t              **cached;

    ngx_str_t                      *name;

    ngx_http_upstream_rr_peer_t     peer[1];
} ngx_http_upstream_rr_peers_t;


typedef struct {
    ngx_http_upstream_rr_peers_t   *peers;
    ngx_uint_t                      current;
    uintptr_t                      *tried; 
    uintptr_t                       data;
} ngx_http_upstream_rr_peer_data_t;


ngx_int_t ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
    ngx_http_upstream_srv_conf_t *us);
ngx_int_t ngx_http_upstream_init_round_robin_peer(ngx_http_request_t *r,
    ngx_http_upstream_srv_conf_t *us);
ngx_int_t ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc,
    void *data);
void ngx_http_upstream_free_round_robin_peer(ngx_peer_connection_t *pc,
    void *data, ngx_uint_t state);

#if (NGX_HTTP_SSL)
void ngx_http_upstream_save_round_robin_peer(ngx_peer_connection_t *pc,
    void *data);
#endif



#endif /* _NGX_HTTP_UPSTREAM_ROUND_ROBIN_H_INCLUDED_ */