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view src/event/ngx_event_connect.h @ 7352:0de0b16a551c

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SSL: corrected SSL_ERROR_WANT_WRITE / SSL_ERROR_WANT_READ logging. While SSL_read() most likely to return SSL_ERROR_WANT_WRITE (and SSL_write() accordingly SSL_ERROR_WANT_READ) during an SSL renegotiation, it is not necessary mean that a renegotiation was started. In particular, it can never happen during a renegotiation or can happen multiple times during a renegotiation. Because of the above, misleading "peer started SSL renegotiation" info messages were replaced with "SSL_read: want write" and "SSL_write: want read" debug ones. Additionally, "SSL write handler" and "SSL read handler" are now logged by the SSL write and read handlers, to make it easier to understand that temporary SSL handlers are called instead of normal handlers.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 10 Sep 2018 18:57:19 +0300
parents e38e9c50a40e
children 8b68d50090e4
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#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);
typedef void (*ngx_event_notify_peer_pt)(ngx_peer_connection_t *pc,
    void *data, ngx_uint_t type);
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);


struct ngx_peer_connection_s {
    ngx_connection_t                *connection;

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

    ngx_uint_t                       tries;
    ngx_msec_t                       start_time;

    ngx_event_get_peer_pt            get;
    ngx_event_free_peer_pt           free;
    ngx_event_notify_peer_pt         notify;
    void                            *data;

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

    ngx_addr_t                      *local;

    int                              type;
    int                              rcvbuf;

    ngx_log_t                       *log;

    unsigned                         cached:1;
    unsigned                         transparent:1;

                                     /* ngx_connection_log_error_e */
    unsigned                         log_error:2;

    NGX_COMPAT_BEGIN(2)
    NGX_COMPAT_END
};


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_ */