nginx 0.6.27 *) Change: now by default the rtsig method is not built on Linux 2.6.18+. *) Change: now a request method is not changed while redirection to a named location via an "error_page" directive. *) Feature: the "resolver" and "resolver_timeout" directives in SMTP proxy. *) Feature: the "post_action" directive supports named locations. *) Bugfix: a segmentation fault occurred in worker process, if a request was redirected from proxy, FastCGI, or memcached location to static named locations. *) Bugfix: browsers did not repeat SSL handshake if there is no valid client certificate in first handshake. Thanks to Alexander V. Inyukhin. *) Bugfix: if response code 495-497 was redirected via an "error_page" directive without code change, then nginx tried to allocate too many memory. *) Bugfix: memory leak in long-lived non buffered connections. *) Bugfix: memory leak in resolver. *) Bugfix: a segmentation fault occurred in worker process, if a request was redirected from proxy, FastCGI, or memcached location to static named locations. *) Bugfix: in the $proxy_host and $proxy_port variables caching. Thanks to Sergey Bochenkov. *) Bugfix: a "proxy_pass" directive with variables used incorrectly the same port as in another "proxy_pass" directive with the same host name and without variables. Thanks to Sergey Bochenkov. *) Bugfix: an alert "sendmsg() failed (9: Bad file descriptor)" on some 64-bit platforms while reconfiguration. *) Bugfix: a segmentation fault occurred in worker process, if empty stub block was used second time in SSI. *) Bugfix: in copying URI part contained escaped symbols into arguments.

/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_EVENT_CONNECT_H_INCLUDED_
#define _NGX_EVENT_CONNECT_H_INCLUDED_


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


#define NGX_PEER_KEEPALIVE           1
#define NGX_PEER_NEXT                2
#define NGX_PEER_FAILED              4


typedef struct ngx_peer_connection_s  ngx_peer_connection_t;

typedef ngx_int_t (*ngx_event_get_peer_pt)(ngx_peer_connection_t *pc,
    void *data);
typedef void (*ngx_event_free_peer_pt)(ngx_peer_connection_t *pc, void *data,
    ngx_uint_t state);
#if (NGX_SSL)

typedef ngx_int_t (*ngx_event_set_peer_session_pt)(ngx_peer_connection_t *pc,
    void *data);
typedef void (*ngx_event_save_peer_session_pt)(ngx_peer_connection_t *pc,
    void *data);
#endif


struct ngx_peer_connection_s {
    ngx_connection_t                *connection;

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

    ngx_uint_t                       tries;

    ngx_event_get_peer_pt            get;
    ngx_event_free_peer_pt           free;
    void                            *data;

#if (NGX_SSL)
    ngx_event_set_peer_session_pt    set_session;
    ngx_event_save_peer_session_pt   save_session;
#endif

#if (NGX_THREADS)
    ngx_atomic_t                    *lock;
#endif

    int                              rcvbuf;

    ngx_log_t                       *log;

    unsigned                         cached:1;

                                     /* ngx_connection_log_error_e */
    unsigned                         log_error:2;
};


ngx_int_t ngx_event_connect_peer(ngx_peer_connection_t *pc);
ngx_int_t ngx_event_get_peer(ngx_peer_connection_t *pc, void *data);



#endif /* _NGX_EVENT_CONNECT_H_INCLUDED_ */