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MDEV-26851 : Add interface to monitor connections in Galera

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This commit is contained in:
Jan Lindström
2024-08-08 10:46:55 +03:00
committed by Jan Lindström
parent 2d7b357e60
commit b8e0540e7a
8 changed files with 309 additions and 4 deletions
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71
include/wsrep/connection_monitor_service.hpp Normal file
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@ -0,0 +1,71 @@
/*
* Copyright (C) 2024-2025 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
* Wsrep-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Wsrep-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
*/
/** @file connection_monitor_service.hpp
*
* Service interface for interacting with DBMS provided
* connection monitor callback.
*/
#ifndef WSREP_CONNECTION_MONITOR_SERVICE_HPP
#define WSREP_CONNECTION_MONITOR_SERVICE_HPP
#include "compiler.hpp"
#include "wsrep/buffer.hpp"
/* Type tag for connection key. */
typedef const void* wsrep_connection_key_t;
namespace wsrep
{
class connection_monitor_service
{
public:
virtual ~connection_monitor_service() { }
/**
* Connection monitor connect callback.
*/
virtual bool connection_monitor_connect_cb(
wsrep_connection_key_t id,
const wsrep::const_buffer& scheme,
const wsrep::const_buffer& local_addr,
const wsrep::const_buffer& remote_addr
) WSREP_NOEXCEPT = 0;
/**
* Connection monitor disconnect callback.
*/
virtual bool connection_monitor_disconnect_cb(wsrep_connection_key_t id
) WSREP_NOEXCEPT=0;
/**
* Connection monitor SSL/TLS info callback.
*/
virtual bool connection_monitor_ssl_info_cb(wsrep_connection_key_t id,
const wsrep::const_buffer& ciper,
const wsrep::const_buffer& subject,
const wsrep::const_buffer& issuer,
const wsrep::const_buffer& version
) WSREP_NOEXCEPT = 0;
};
}
#endif // WSREP_CONNECTION_MONITOR_SERVICE_HPP

9
include/wsrep/provider.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2018 Codership Oy <info@codership.com>
* Copyright (C) 2018-2025 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
@ -49,6 +49,7 @@ namespace wsrep
class allowlist_service;
class event_service;
class client_service;
class connection_monitor_service;
class stid
{
public:
@ -479,6 +480,7 @@ namespace wsrep
wsrep::tls_service* tls_service;
wsrep::allowlist_service* allowlist_service;
wsrep::event_service* event_service;
wsrep::connection_monitor_service* connection_monitor_service;
// some GCC and clang versions don't support C++11 default
// initializers fully, so we need to use explicit constructors
@ -490,17 +492,20 @@ namespace wsrep
, tls_service()
, allowlist_service()
, event_service()
, connection_monitor_service()
{
}
services(wsrep::thread_service* thr,
wsrep::tls_service* tls,
wsrep::allowlist_service* all,
wsrep::event_service* event)
wsrep::event_service* event,
wsrep::connection_monitor_service* con)
: thread_service(thr)
, tls_service(tls)
, allowlist_service(all)
, event_service(event)
, connection_monitor_service(con)
{
}
};