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