1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/compressionlibs/ziplib/inc/ezstream.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,71 @@
     1.4 +// Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// Declaration for CEZStream class.  
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#ifndef __EZZSTREAM_H__
    1.22 +#define __EZZSTREAM_H__
    1.23 +
    1.24 +#include <e32base.h>
    1.25 +#include <ezlib.h> 
    1.26 +#include <ezliberrorcodes.h>
    1.27 +
    1.28 +/**
    1.29 +Represents a zip stream
    1.30 +
    1.31 +@publishedAll
    1.32 +@released
    1.33 +*/
    1.34 +class CEZZStream : public CBase
    1.35 +	{
    1.36 +public:
    1.37 +/** stream panic values */
    1.38 +	enum 
    1.39 +		{
    1.40 +		EStreamError = -Z_STREAM_ERROR,
    1.41 +		EDataError = -Z_DATA_ERROR,
    1.42 +		EBufError = -Z_BUF_ERROR,
    1.43 +		EVersionError = -Z_VERSION_ERROR,
    1.44 +		EUnexpected
    1.45 +		};
    1.46 +public:
    1.47 +	IMPORT_C void SetInput(const TDesC8& aInputData);
    1.48 +	IMPORT_C void SetOutput(TDes8& aOutputData);
    1.49 +
    1.50 +	IMPORT_C TPtrC8 OutputDescriptor() const;
    1.51 +	IMPORT_C TInt TotalOut() const;
    1.52 +	IMPORT_C TInt TotalIn() const;
    1.53 +	IMPORT_C TInt32 Adler32() const;
    1.54 +	IMPORT_C TInt AvailIn() const;
    1.55 +	IMPORT_C TInt AvailOut() const;
    1.56 +
    1.57 +	IMPORT_C TInt Progress(TInt aTotalLength) const;
    1.58 +	
    1.59 +protected:
    1.60 +	CEZZStream();
    1.61 +
    1.62 +	
    1.63 +protected:
    1.64 +	z_stream iStream;
    1.65 +
    1.66 +	// This pointer is reset every time SetOutput is called.  It maintains a pointer to the
    1.67 +	// start of the output buffer which is being written to.  We cannot use iStream.next_out,
    1.68 +	// because zlib will modifify this during its deflate and inflate.
    1.69 +	
    1.70 +	TUint8* iOutputPointer;
    1.71 +	TInt iOutputBufferLength;
    1.72 +	};
    1.73 +
    1.74 +#endif