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os/ossrv/compressionlibs/ziplib/test/oldezlib/inc/OldEZstream.h
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 // Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // EZLib: ZSTREAM.H

    15 // Declaration for CEZStream class.  

    16 // 

    17 //

    18 

    19 #ifndef __EZLIB_EZZSTREAM_H__

    20 #define __EZLIB_EZZSTREAM_H__

    21 

    22 #include <e32base.h>

    23 #include "OldEZlib.h"

    24 #include "OldEZlibErrorCodes.h"

    25 

    26 /**

    27 Represents a zip stream

    28 

    29 @publishedAll

    30 @released

    31 */

    32 namespace TOLDEZLIB

    33 {

    34 class CEZZStream : public CBase

    35 	{

    36 public:

    37 /** stream panic values */

    38 	enum 

    39 		{

    40 		EStreamError = -Z_STREAM_ERROR,

    41 		EDataError = -Z_DATA_ERROR,

    42 		EBufError = -Z_BUF_ERROR,

    43 		EVersionError = -Z_VERSION_ERROR,

    44 		EUnexpected

    45 		};

    46 public:

    47 	IMPORT_C void SetInput(const TDesC8& aInputData);

    48 	IMPORT_C void SetOutput(TDes8& aOutputData);

    49 

    50 	IMPORT_C TPtrC8 OutputDescriptor() const;

    51 	IMPORT_C TInt TotalOut() const;

    52 	IMPORT_C TInt TotalIn() const;

    53 	IMPORT_C TInt32 Adler32() const;

    54 	IMPORT_C TInt AvailIn() const;

    55 	IMPORT_C TInt AvailOut() const;

    56 

    57 	IMPORT_C TInt Progress(TInt aTotalLength) const;

    58 	

    59 protected:

    60 	CEZZStream();

    61 

    62 	

    63 protected:

    64 	z_stream iStream;

    65 

    66 	// This pointer is reset every time SetOutput is called.  It maintains a pointer to the

    67 	// start of the output buffer which is being written to.  We cannot use iStream.next_out,

    68 	// because zlib will modifify this during its deflate and inflate.

    69 	

    70 	TUint8* iOutputPointer;

    71 	TInt iOutputBufferLength;

    72 	};

    73 }// namespace TOLDEZLIB

    74 #endif
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