64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
#ifndef PLUGIN_CONNECTION_HANDLER_INCLUDED
|
|
#define PLUGIN_CONNECTION_HANDLER_INCLUDED
|
|
|
|
/*
|
|
Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License, version 2.0,
|
|
as published by the Free Software Foundation.
|
|
|
|
This program is also distributed with certain software (including
|
|
but not limited to OpenSSL) that is licensed under separate terms,
|
|
as designated in a particular file or component or in included license
|
|
documentation. The authors of MySQL hereby grant you an additional
|
|
permission to link the program and your derivative works with the
|
|
separately licensed software that they have included with MySQL.
|
|
|
|
This program 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, version 2.0, for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "mysql/thread_pool_priv.h" // Plugin_connection_handler_functions
|
|
#include "sql/conn_handler/connection_handler.h" // Connection_handler
|
|
|
|
class THD;
|
|
|
|
/**
|
|
This is a wrapper class around global free functions implemented
|
|
by connection handler plugins (e.g. thread pool). So instead of
|
|
plugins implementing a Connection_handler subclass, they supply
|
|
a set of function pointers to my_connection_handler_set() which
|
|
instantiates Plugin_connection_handler.
|
|
|
|
@see Connection_handler_functions struct.
|
|
*/
|
|
|
|
class Plugin_connection_handler : public Connection_handler {
|
|
Connection_handler_functions *m_functions;
|
|
|
|
Plugin_connection_handler(const Plugin_connection_handler &);
|
|
Plugin_connection_handler &operator=(const Plugin_connection_handler &);
|
|
|
|
public:
|
|
Plugin_connection_handler(Connection_handler_functions *functions)
|
|
: m_functions(functions) {}
|
|
|
|
virtual ~Plugin_connection_handler() { m_functions->end(); }
|
|
|
|
protected:
|
|
virtual bool add_connection(Channel_info *channel_info) {
|
|
return m_functions->add_connection(channel_info);
|
|
}
|
|
|
|
virtual uint get_max_threads() const { return m_functions->max_threads; }
|
|
};
|
|
|
|
#endif // PLUGIN_CONNECTION_HANDLER_INCLUDED
|