1 /*

     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: Declaration of CMMCScBkupArchiveDataManager

    15 *     

    16 *

    17 */

    18 

    19 #ifndef __CMMCSCBKUPARCHIVEDATAMANAGER_H__

    20 #define __CMMCSCBKUPARCHIVEDATAMANAGER_H__

    21 

    22 // System includes

    23 #include <f32file.h>

    24 #include <s32strm.h>

    25 

    26 // User includes

    27 #include "CMMCScBkupBufferManagers.h"

    28 #include "MMMCScBkupArchiveDataInterface.h"

    29 #include "TMMCScBkupArchiveVector.h"

    30 #include "RMMCScBkupArchiveStreams.h"

    31 #include "MMCScBkupOperations.h"

    32 #include "MMCScBkupConfig.h"

    33 

    34 // Classes referenced

    35 class CEZCompressor;

    36 class CEZDecompressor;

    37 class RMMCScBkupArchiveBuf;

    38 class MMMCScBkupProgressObserver;

    39 

    40 

    41 /**

    42 *

    43 *

    44 * @since 3.0

    45 */

    46 NONSHARABLE_CLASS(CMMCScBkupArchiveDataManager) : public CActive, public MMMCScBkupArchiveDataInterface

    47     {

    48     public:

    49 

    50         /**

    51         * Static constructor

    52         */

    53         static CMMCScBkupArchiveDataManager* NewL( RFs& aFsSession, RFile64& aFile, MMMCScBkupProgressObserver& aProgressManager );

    54 

    55         /**

    56         * C++ destructor

    57         */

    58         ~CMMCScBkupArchiveDataManager();

    59 

    60     private:

    61 

    62         /**

    63         * C++ default constructor

    64         */

    65         CMMCScBkupArchiveDataManager( RFs& aFsSession, RFile64& aFile, MMMCScBkupProgressObserver& aProgressManager );

    66 

    67         /**

    68         *

    69         */

    70         void ConstructL();

    71 

    72     public: // API

    73 

    74         /**

    75         * Leaves on error, returns offset

    76         */

    77         TInt CurrentOffsetL() const;

    78 

    79         /**

    80         * Returns error or offset

    81         */

    82         TInt CurrentOffset() const;

    83 

    84     private: // For RMMCScBkupArchiveBuf only

    85    

    86         /**

    87         *

    88         */

    89         void SetCurrentVector(const TMMCScBkupArchiveVector& aInfo);

    90 

    91 

    92     private: // From MMMCScBkupArchiveDataInterface

    93         RFs& ADIFsSession() const;

    94         RFile64& ADIRawArchiveFile() const;

    95         //

    96         const TMMCScBkupArchiveVector& ADICurrentArchiveVectorInfo() const;

    97         const TMMCScBkupArchiveVector& ADIOverallArchiveVectorInfo() const;

    98         //

    99         RWriteStream& ADIWriteStreamUncompressedLC( TInt aPos );

   100         RReadStream& ADIReadStreamUncompressedLC( TInt aPos );

   101         //

   102         const TMMCScBkupArchiveVector& ADIWriteL( const TDesC8& aData );

   103         const TMMCScBkupArchiveVector& ADIReadL( TDes8& aSink, const TMMCScBkupArchiveVector& aInfo );

   104         //

   105         void ADIWriteFileL( const TDesC& aSourceFileName, TRequestStatus& aObserver );

   106         void ADIReadFileL( const TDesC& aDestinationFileName, const TMMCScBkupArchiveVector& aInfo, TRequestStatus& aStatus );

   107         //

   108         void ADIWriteCompressedL( const TDesC8& aData, TRequestStatus& aObserver );

   109         void ADIReadDecompressedL( TDes8& aSink, const TMMCScBkupArchiveVector& aInfo, TRequestStatus& aStatus ) ;

   110         //

   111         void ADIAsynchronousCancel();

   112         void ADIResetResources(TMMCScBkupOperationType aType);

   113 #ifdef RD_FILE_MANAGER_BACKUP

   114         void ADIActivateCrcCalculation(TBool aType) { iCrcCalcActivated = aType; }

   115         TUint32 ADIArchiveCrc() { return iCrc; }

   116 #endif

   117 

   118 

   119     private: // Internal enumerations

   120 

   121         /**

   122         *

   123         */

   124         enum TOperation

   125             {

   126             EOperationIdle = 0,

   127             EOperationCompressing,

   128             EOperationDecompressing

   129             };

   130     

   131     private: // Internal methods

   132 

   133         /**

   134         *

   135         */

   136         void EnsureCompressorExistsL(MEZBufferManager& aBufferManager);

   137 

   138         /**

   139         *

   140         */

   141         void EnsureDecompressorExistsL(MEZBufferManager& aBufferManager);

   142 

   143         /**

   144         *

   145         */

   146         void SetObserver(TRequestStatus& aStatus);

   147 

   148         /**

   149         *

   150         */

   151         void CompleteSelf(TInt aCompletionCode = KErrNone);

   152 

   153         /**

   154         *

   155         */

   156         void CompleteObserver(TInt aCompletionCode = KErrNone);

   157 

   158         /**

   159         *

   160         */

   161         void SetOperation(TOperation aOperation);

   162         

   163 #ifdef RD_FILE_MANAGER_BACKUP

   164         /**

   165         *

   166         */

   167         void CalculateCrc( const TAny* aPtr,TInt aLength );

   168 #endif

   169 

   170 

   171     private: // From CActive

   172         void RunL();

   173         void DoCancel();

   174         TInt RunError(TInt aError);

   175 

   176     private: // Member data

   177 

   178         // Owned externally:

   179         // 

   180         RFs& iFsSession;

   181         //

   182         RFile64& iFile;

   183         //

   184         MMMCScBkupProgressObserver& iProgressManager;

   185         //

   186         TRequestStatus* iObserverStatus;

   187 

   188         // Owned by this object

   189         //

   190         TOperation iOperation;

   191         //

   192         CMMCScBkupBufferManagerBase* iBufferManager;

   193         //

   194         CEZCompressor* iCompressor;

   195         //

   196         CEZDecompressor* iDecompressor;

   197         //

   198         TMMCScBkupArchiveVector iCurrentVectorInfo;

   199         //

   200         TMMCScBkupArchiveVector iOverallArchiveVectorInfo;

   201         //

   202         RMMCScBkupArchiveWriteStream iWriteStream;

   203         //

   204         RMMCScBkupArchiveReadStream iReadStream;

   205 #ifdef RD_FILE_MANAGER_BACKUP

   206         //

   207         TBool iCrcCalcActivated;

   208         //

   209         TUint32 iCrc;

   210 #if defined(__MMCSCBKUPLOGGING_ENABLED__)

   211         TUint32 iTotalTickCount;

   212 #endif

   213 #endif // RD_FILE_MANAGER_BACKUP

   214 

   215         friend class RMMCScBkupArchiveBuf;

   216     };

   217 

   218 

   219 

   220 

   221 #endif // __CMMCSCBKUPARCHIVEDATAMANAGER_H__

   222 

   223 //End of File