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// Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// Declaration for CEZStream class.
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//
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//
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#ifndef __EZZSTREAM_H__
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#define __EZZSTREAM_H__
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#include <e32base.h>
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#include <ezlib.h>
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#include <ezliberrorcodes.h>
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/**
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Represents a zip stream
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@publishedAll
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@released
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*/
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class CEZZStream : public CBase
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{
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public:
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/** stream panic values */
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enum
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{
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EStreamError = -Z_STREAM_ERROR,
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EDataError = -Z_DATA_ERROR,
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EBufError = -Z_BUF_ERROR,
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EVersionError = -Z_VERSION_ERROR,
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EUnexpected
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};
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public:
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IMPORT_C void SetInput(const TDesC8& aInputData);
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IMPORT_C void SetOutput(TDes8& aOutputData);
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IMPORT_C TPtrC8 OutputDescriptor() const;
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IMPORT_C TInt TotalOut() const;
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IMPORT_C TInt TotalIn() const;
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IMPORT_C TInt32 Adler32() const;
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IMPORT_C TInt AvailIn() const;
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IMPORT_C TInt AvailOut() const;
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IMPORT_C TInt Progress(TInt aTotalLength) const;
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protected:
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CEZZStream();
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protected:
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z_stream iStream;
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// This pointer is reset every time SetOutput is called. It maintains a pointer to the
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// start of the output buffer which is being written to. We cannot use iStream.next_out,
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// because zlib will modifify this during its deflate and inflate.
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TUint8* iOutputPointer;
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TInt iOutputBufferLength;
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};
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#endif
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