/*

* Copyright (c) 2003 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:  ?Description

*

*/

#ifndef __GZIPSTREAMBUFMGR_H_

#define __GZIPSTREAMBUFMGR_H_

//------------------------------------------------------------------------------

#include <e32base.h>

//------------------------------------------------------------------------------

class CGzipStream;

//------------------------------------------------------------------------------

class StreamBufMgr : public MEZBufferManager

{

public:

	// ctor

	static StreamBufMgr* NewL( TPtrC8 in );

	virtual ~StreamBufMgr();

	//--------------------------------------------------------------------------

	void InitializeL(CEZZStream &aZStream);

	void NeedInputL(CEZZStream &aZStream);

	void NeedOutputL(CEZZStream &aZStream);

	void FinalizeL(CEZZStream &aZStream);

	void SetBuffer( TPtrC8 in );

	//--------------------------------------------------------------------------

private:

	void ConstructL();

	StreamBufMgr( TPtrC8 in );

	//--------------------------------------------------------------------------

	TPtrC8	iInput;  // always points to start of the input Buffer

	TPtr8	iOutputDes;	// always points to start of the output Buffer

	HBufC8*	iOutput;

	friend class CDecmpStream;

	TBool	iNeedInput;

	TBool	iNeedOutput;

	TBool	iFinalized;

};

//------------------------------------------------------------------------------

#endif // !__GZIPSTREAMBUFMGR_H_