MaxScale/examples/examplefiltersession.hh
Markus Mäkelä 4f01ff1955 Add C++ filter example
The filter example uses the C++ template which helps new filter creation
by showing the minimal implementation required for a filter.
2017-11-07 08:38:51 +02:00

45 lines
1.2 KiB
C++

#pragma once
/*
* Copyright (c) 2016 MariaDB Corporation Ab
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
*
* Change Date: 2020-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2 or later of the General
* Public License.
*/
#include <maxscale/cppdefs.hh>
#include <maxscale/filter.hh>
class ExampleFilter;
class ExampleFilterSession : public maxscale::FilterSession
{
// Prevent copy-constructor and assignment operator usage
ExampleFilterSession(const ExampleFilterSession&);
ExampleFilterSession& operator = (const ExampleFilterSession&);
public:
~ExampleFilterSession();
// Called when a client session has been closed
void close();
// Create a new filter session
static ExampleFilterSession* create(MXS_SESSION* pSession, const ExampleFilter* pFilter);
// Handle a query from the client
int routeQuery(GWBUF* pPacket);
// Handle a reply from server
int clientReply(GWBUF* pPacket);
private:
// Used in the create function
ExampleFilterSession(MXS_SESSION* pSession);
};