#ifdef __RAMDISK_PERF_ENABLE

    /**

    * Copy all databases from RAM disk back to normal drive, E, F,...

    * 

    * @return none

    * Leaves if DB is not usable after the operation

    */

    void CopyDBsFromRamL(); 

    /**

    * Copy all databases to RAM disk from normal drive, E, F,...

    * 

    * @return none

    * Leaves if DB is not usable after the operation

    */

    void CopyDBsToRamL(TBool aMtpMode = EFalse);

    /**

     * Update all databases from RAM drive

     */

    //void UpdateDBsFromRamL( TInt aCount );

    /**

     * If Ram disk is low, copy dbs from ram.

     */

    void EnsureRamSpaceL();

#endif //__RAMDISK_PERF_ENABLE

private: // new functions

#ifdef __RAMDISK_PERF_ENABLE

    /**

    * Find available RAMDISK

    */

    TInt GetRAMDiskPath();

    /**

    * Check if disk is available to copy.

    *

    * @return ETrue if there is enough space, EFalse otherwise

    */

    TBool IsRamDiskSpaceAvailable();

    /**

     * Copy database to ram drive

     */

    void DoCopyDBToRamL(TDriveUnit aDriveUnit);

    /**

    * Copy database from RAM disk

    */

    void DoCopyDBFromRamL(TDriveUnit aDriveUnit); 

    /**

    * To block a disk space so that it can gurantee for a write back from RAM disk

    *

    * @return KErrNone if the dummy file is created successfully

    */

    TInt BlockDiskSpaceL( TDriveUnit aDrive, TInt aOrigDbSize );

    /**

    * To calculate necessary file size of the dummy file

    *

    * @return TInt64 estimated file size

    */

    TInt64 CalculateInitalDummyDBSizeL( TVolumeInfo aVol, TInt aOrigDbSize );

    /**

    * Remove dummy file

    *

    * @return TInt index to the database handler

    */

    void RemoveDummyFile( TInt aIndex );

    /**

     * Update the database from ram drive.

     */

    //void DoUpdateDBFromRamL( TDriveUnit aDriveUnit );

    /**

     * Generate the harvester db path and name.

     */

    TFileName GenerateHarvesterDbName( TDriveUnit aDriveUnit, TBool aForRamDrive = EFalse );

    /**

     * Generate the dummy db path and name.

     */

    TFileName GenerateDummyDbName( TDriveUnit aDriveUnit );

    /**

     * Check if Ram disk is low.

     */

    TBool IsRamDiskLow();

    /**

     * Sum up the total size in bytes of the databases.

     * 

     * @param aSize - On return, the total size of the databases.

     * @param aRamDrive - if True, will sum up dbs on Ram Drive, if False, will sum up dbs on other drives.

     * @return TInt System error.

     */

    TInt GetTotalDatabasesSize(TInt& aSize, TBool aRamDrive);

#endif  // __RAMDISK_PERF_ENABLE

#ifdef __RAMDISK_PERF_ENABLE

    // Defined for RAM disk performance

    TBool                   iRAMDiskPerfEnabled;  // flag to indicate RAM disk feature is enabled from cenrep.

    TUint64                 iMaximumAllowedRAMDiskSpaceToCopy; // max size in megabytes allowed for RAM copying.

    TFileName               iRAMFolder;

    TDriveNumber            iRAMDrive;

    //TInt                    iUpdateCount;

    TBool                   iMtpMode;

    //TInt                    iMtpAddCount;

#endif //__RAMDISK_PERF_ENABLE