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/*
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* Copyright (c) 2008 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 the License "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: Asynchronous file copy, implemented with several small sync block copies.*
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*/
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#ifndef VCXMYVIDEOSASYNCFILECOPY_H
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#define VCXMYVIDEOSASYNCFILECOPY_H
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// INCLUDES
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// FORWARD DECLARATIONS
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// CONSTANTS
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// CLASS DECLARATION
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/**
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* @lib mpxmyvideoscollectionplugin.lib
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*/
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NONSHARABLE_CLASS(CVcxMyVideosAsyncFileCopy) :
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public CBase
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{
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public: // Constructors and destructor
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/**
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* Two-phased constructor
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* @return object constructed
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*/
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static CVcxMyVideosAsyncFileCopy* NewL( RFs& aFs );
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/**
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* Destructor
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*/
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virtual ~CVcxMyVideosAsyncFileCopy();
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public:
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/**
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* Copies aSourceFileName to aSourceFileName. Leaves with KErrNotReady
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* if there is already copy operation going on.
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*
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* @param aSourceFileName Full path and name of the source file.
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* @param aTargetFileName Full path and name of the target file.
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* @return ETrue if copy was finished. If EFalse, then
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* user must do DoNextBlockCopyL calls to
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* continue copying.
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*/
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TBool CopyL( const TDesC& aSourceFileName, const TDesC& aTargetFileName );
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/**
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* Checks if there is copy going on.
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*
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* @return ETrue if copy is going on, EFalse otherwise.
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*/
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TBool CopyIsOngoing();
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/**
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* Copies next block from the current copy operation.
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*
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* @return System wide error code.
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*/
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TInt DoNextBlockCopy();
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/**
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* Cancels current copy operation (if any). Does nothing if copy
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* operation is not going on. Cancel removes the possible target file
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* which has been created during the current copy operation.
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*/
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void Cancel();
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private:
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/**
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* Constructor
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*/
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CVcxMyVideosAsyncFileCopy( RFs& aFs );
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/**
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* Symbian 2nd phase constructor.
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*/
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void ConstructL ();
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/**
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* Allocates buffer from RAM (iFileBlockBuffer) for a file block.
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*
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* @param aFileSize Size of the file to be copied.
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*/
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void AllocateFileBlockBufferL( TInt aFileSize );
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/**
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* Closes file handles and resets variables.
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*
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* @param aRemoveTargetFile If ETrue then the target file is removed.
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*/
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void EndCopy( TBool aRemoveTargetFile );
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private:
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/**
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* File server session.
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*/
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RFs& iFs;
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#ifdef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API
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/**
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* File in which we are copying from.
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*/
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RFile64 iSourceFile;
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/**
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* File which is being copied to.
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*/
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RFile64 iTargetFile;
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/**
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* How much data is left for copying.
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*/
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TInt64 iDataRemaining;
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/**
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* Current read position in source file.
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*/
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TInt64 iReadPos;
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#else
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/**
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* File in which we are copying from.
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*/
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RFile iSourceFile;
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/**
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* File which is being copied to.
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*/
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RFile iTargetFile;
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/**
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* How much data is left for copying.
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*/
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TInt iDataRemaining;
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/**
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* Current read position in source file.
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*/
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TInt iReadPos;
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#endif
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/**
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* Set to ETrue when copy starts and EFalse when copying ends.
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*/
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TBool iIsCopying;
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/**
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* Space for the one file block. Own
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*/
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HBufC8* iFileBlockBuffer;
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#ifdef _DEBUG
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/**
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* Used to calculate copying speed.
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*/
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TTime iStartTime;
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#endif
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};
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#endif // VCXMYVIDEOSASYNCFILECOPY_H
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