--- a/mmfenh/progressivedownload/ProgressiveDownloadSource/src/MmffilePriv.h Mon May 03 12:59:52 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,188 +0,0 @@
-/*
-* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description: Progressive Download Utility
-*
-*/
-
-
-#ifndef __MMFFILEPRIV_H_
-#define __MMFFILEPRIV_H_
-
-#include <f32file.h>
-
-#include <mmf/server/mmfclip.h>
-#include <mmf/server/mmfdatabuffer.h>
-
-
-/**
- * @publishedAll
- *
- * Represents a copy of a KUidMmfTransferBuffer used for reading/writting to the file server
- */
-
-class CTransferBufferCopy : public CBase
- {
-public:
- static CTransferBufferCopy* NewL(TInt aMaxLength);
-
- virtual ~CTransferBufferCopy()
- {delete iBuffer;}
-
-
- TDes8& Des() {return iBufferDes;}
-
- TInt MaxLength() {return iBufferDes.MaxLength();}
-
- void ReUse(TInt aMaxLength) {iBufferDes.Set(iBuffer,0, Min(aMaxLength, iMaxLength));}
-
- TBool InUse() {return iInUse;}
-
- void SetInUse(TBool aInUse) {iInUse=aInUse;}
-
-private:
- CTransferBufferCopy(TInt aMaxLength) : CBase(), iMaxLength(aMaxLength), iBufferDes(0,0,0), iInUse(EFalse){}
-
- void ConstructL();
-
-private:
- TUint8* iBuffer;
-
- //Holds the original MaxLength when class constructed.
- //May be larger than MaxLength of iBufferDes
- TInt iMaxLength;
-
- TPtr8 iBufferDes;
-
- TBool iInUse;
- };
-
-
-
-
-/**
- * @internalComponent
- *
- * A request is created when an external object requests or supplies data. Calls to the File Server are
- * made asynchronously and a CReadWriteRequest created to notify the caller on completion.
- *
- * CReadWriteRequest is an abstract class. Concrete instances are of CReadRequest & CWriteRequest.
- * Concrete instances need to know whether to call MDataSink::BufferFilledL() or MDataSource::BufferEmptiedL()
- */
-class CReadWriteRequest : public CActive
- {
-public:
- CReadWriteRequest(TAny* aSinkOrSource, CMMFBuffer* aBuffer,MAsyncEventHandler* aEventHandler)
- : CActive(EPriorityStandard),
- iSinkOrSource(aSinkOrSource),
- iBuffer(aBuffer),
- iEventHandler(aEventHandler)
- {
- CActiveScheduler::Add( this );
- }
-
- CReadWriteRequest(TAny* aSinkOrSource, CMMFBuffer* aBuffer, CTransferBufferCopy* aOptionalDataBuffer, MAsyncEventHandler* aEventHandler)
- : CActive(EPriorityStandard),
- iSinkOrSource(aSinkOrSource),
- iBuffer(aBuffer),
- iTransferBufferCopy(aOptionalDataBuffer),
- iEventHandler(aEventHandler)
- {
- CActiveScheduler::Add( this );
- iTransferBufferCopy->SetInUse(ETrue);
- }
-
- CReadWriteRequest(CReadWriteRequest& aRequest)
- : CActive(EPriorityStandard),
- iSinkOrSource(aRequest.iSinkOrSource),
- iBuffer(aRequest.iBuffer),
- iTransferBufferCopy(aRequest.iTransferBufferCopy),
- iEventHandler(aRequest.iEventHandler)
- {
- CActiveScheduler::Add( this );
- iTransferBufferCopy->SetInUse(ETrue);
- }
-
-
- TBool Completed() ;
- TDes8& BufferDes() ;
- const TDesC8& BufferDesC() ;
-
- ~CReadWriteRequest() ;
-
-
- // CActive functions.
- //
- void SetActive() ;
- void DoCancel() ;
- virtual void RunL() = 0 ;
- virtual TInt RunError( TInt aError ) ;
-
-
-protected :
- TAny* iSinkOrSource;
- CMMFBuffer* iBuffer;
- CTransferBufferCopy* iTransferBufferCopy;
-
- MAsyncEventHandler* iEventHandler;
- TBool iCompleted ;
- TDes8* iBufferDes ;
- TInt iError ;
- TBool iUseTransferBuffer ;
- void SetTransferBuffer (TBool aTBuffer) ;
- TBool CanUseTransferBuffer () ;
- } ;
-
-/**
- * @internalComponent
- */
-class CReadRequest : public CReadWriteRequest
- {
-public :
- CReadRequest(TAny* aSinkOrSource, CMMFBuffer* aBuffer, TUint aPosition, TUint aFileSize, TInt aBytesDownloaded,MAsyncEventHandler* aEventHandler)
- : CReadWriteRequest(aSinkOrSource, aBuffer, aEventHandler),
- iPosition(aPosition), iFileSize(aFileSize),iBytesDownloaded(aBytesDownloaded)
- { }
-
- CReadRequest(TAny* aSinkOrSource, CMMFBuffer* aBuffer, CTransferBufferCopy* aOptionalDataBuffer, TUint aPosition, TUint aFileSize,TInt aBytesDownloaded, MAsyncEventHandler* aEventHandler)
- : CReadWriteRequest(aSinkOrSource, aBuffer, aOptionalDataBuffer,aEventHandler),
- iPosition(aPosition), iFileSize(aFileSize),iBytesDownloaded(aBytesDownloaded)
- { }
-
- void RunL();
-private:
- TUint iPosition;
- TUint iFileSize;
- TInt iBytesDownloaded;
- };
-
-/**
- * @internalComponent
- */
-class CWriteRequest : public CReadWriteRequest
- {
-public :
- CWriteRequest(TAny* aSinkOrSource, CMMFBuffer* aBuffer, MAsyncEventHandler* aEventHandler)
- : CReadWriteRequest(aSinkOrSource, aBuffer, aEventHandler)
- { }
-
- CWriteRequest(TAny* aSinkOrSource, CMMFBuffer* aBuffer, CTransferBufferCopy* aOptionalDataBuffer, MAsyncEventHandler* aEventHandler)
- : CReadWriteRequest(aSinkOrSource, aBuffer, aOptionalDataBuffer, aEventHandler)
- { }
-
- void RunL();
- };
-
-
-#endif
-