//dnsproxywriter.h

/*

* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

* dnsproxywriter.h - dns proxy writer class

* @file

* @internalTechnology

*

*/

#ifndef __H_DNS_PROXY_WRITER_H__

#define __H_DNS_PROXY_WRITER_H__

// Forward declaration for CDnsProxyWriter class

class CDnsProxyListener;

class TQueryContext;

class CDnsProxyWriter:public CActive

/**

 *CDnsProxyWriter class is an active object and is responsible for sending the query

 *to the querying host address. After sending the response packet it 

 *deletes the query context and checks if there is any other query pending processing.

 *

 *@internalTechnology

**/

{

friend class CDnsProxyListener;

public:

	static CDnsProxyWriter* NewL(CDnsProxyListener& aListener);

	void WriteTo(TQueryContext* queryContext);

	~CDnsProxyWriter();

protected:

	CDnsProxyWriter(CDnsProxyListener& aListener);

	void ConstructL();

	void RunL();

	void DoCancel();

	TInt RunError(TInt aErr);

private:

	CDnsProxyListener& iListener;

	TSockAddr addr;

};

#endif/*__H_DNS_PROXY_WRITER_H__ */