--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mmfenh/progressivedownload/ProgressiveDownloadSource/src/ProgressiveDownloadSource.cpp Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,1810 @@
+/*
+* 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
+*
+*/
+
+
+#include <f32file.h>
+#include <e32std.h>
+#include <mmfdatabuffer.h>
+#include <mmfutilities.h>
+#include <mmf/common/mmfcontroller.h>
+#include <mmfpaniccodes.h>
+//#include "mmffile.h"
+
+#include "MmffilePriv.h"
+#include "FileAccess.h"
+
+
+#include "ProgressiveDownloadSource.h"
+#include <implementationproxy.h>
+
+const TUid KUidProgressiveDlSource = {KProgressiveDownloadSourceUid};
+
+
+void Panic(TMMFFilePanicCode aPanicCode)
+ {
+ _LIT(KMMFFilePanicCategory, "CProgressiveDownloadSource");
+ User::Panic(KMMFFilePanicCategory, aPanicCode);
+ }
+
+
+/**
+ * Constructs a CTransferBufferCopy
+ *
+ * @return CTransferBufferCopy*
+ */
+CTransferBufferCopy* CTransferBufferCopy::NewL(TInt aMaxLength)
+ {
+ CTransferBufferCopy* self = new (ELeave) CTransferBufferCopy(aMaxLength);
+ CleanupStack::PushL(self);
+ self->ConstructL();
+ CleanupStack::Pop(self);
+ return self;
+ }
+
+/**
+ * Second phase constructor for CTransferBufferCopy
+ *
+ * @return void
+ */
+void CTransferBufferCopy::ConstructL()
+ {
+ iBuffer = static_cast<TUint8*>(User::AllocL(iMaxLength));
+ iBufferDes.Set(iBuffer,0,iMaxLength);
+ }
+
+/**
+Destructor.
+*/
+CProgressiveDownloadSource::~CProgressiveDownloadSource()
+ {
+ delete iFile;
+
+ iHandle.Close();
+ iFsSession.Close();
+ delete iFileName;
+ delete iFileExt;
+ delete iFilePath;
+ delete iFileDrive;
+ delete iMmfFileEventHandler;
+ delete iUniqueId;
+
+ // Get rid of everything in RArray's & close them.
+ iRequests.ResetAndDestroy();
+ iTransferBufferCopies.ResetAndDestroy();
+ }
+
+/**
+Protected constructor.
+
+The default implementation is empty.
+*/
+CProgressiveDownloadSource::CProgressiveDownloadSource() : CMMFClip(KUidProgressiveDlSource/*KUidMmfFileSource*/, KUidMmfFileSink ), iFileSize(-1)
+ {
+ iSinkNotStopped = EFalse;
+ }
+
+/**
+Constructs an CProgressiveDownloadSource MDataSource.
+
+@return A pointer to the new CProgressiveDownloadSource data source.
+*/
+MDataSource* CProgressiveDownloadSource::NewSourceL()
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::NewSourceL"));
+ #endif
+ CProgressiveDownloadSource* self = new (ELeave) CProgressiveDownloadSource ;
+ return STATIC_CAST( MDataSource*, self ) ;
+ }
+
+/**
+Constructs a CProgressiveDownloadSource MDataSink
+
+@return A pointer to the new CProgressiveDownloadSource data sink.
+*/
+MDataSink* CProgressiveDownloadSource::NewSinkL()
+ {
+ CProgressiveDownloadSource* self = new (ELeave) CProgressiveDownloadSource ;
+ return STATIC_CAST( MDataSink*, self ) ;
+ }
+
+/**
+Perform source construction dependant on the source construction
+initialisation data aInitData.
+
+@param aInitData
+ The TPckg<TMMFFileParams> descriptor package containing the file name and full path.
+*/
+void CProgressiveDownloadSource::ConstructSourceL(const TDesC8& aInitData )
+ {
+ ConstructL(aInitData, ESourceMode);
+ }
+
+/**
+Performs sink construction dependant on the sink construction
+initialisation data aInitData.
+
+@param aInitData
+ The TPckg<TMMFFileParams> descriptor package containing the file name and full path.
+*/
+void CProgressiveDownloadSource::ConstructSinkL(const TDesC8& aInitData)
+ {
+ ConstructL(aInitData, ESinkMode);
+ }
+
+/**
+Protected constructor.
+
+Extracts the initialisation data provided by the calling functions: ConstructSourceL() and
+ConstructSourceL(). Creates a file server session and sets up file name. If there is a file name and
+it cannot be found this function leaves. If there is no file name the function leaves. Does not
+attempt to open the file or check whether the file exists.
+
+@param aInitData
+ Initialisation data packaged in a TMMFFileParams.
+*/
+void CProgressiveDownloadSource::ConstructL(const TDesC8& aInitData,TMMFileMode aFileMode)
+ {
+ User::LeaveIfError(iFsSession.Connect());
+#ifdef __IPC_V2_PRESENT__
+ // on IPCv2 we auto attach
+ User::LeaveIfError(iFsSession.ShareAuto());
+#else
+ // on IPCv1
+ we use explicit - more efficient
+ User::LeaveIfError(iFsSession.Share(RSessionBase::EExplicitAttach));
+#endif
+
+
+ TBool fileInit = EFalse;
+ HBufC* filename = NULL;
+ TBool filenamePushed = EFalse;
+
+
+ TBool drmContent = EFalse;
+ RDesReadStream stream(aInitData);
+ CleanupClosePushL(stream);
+
+ TUid initUid;
+
+ initUid = TUid::Uid(stream.ReadInt32L());
+
+ if (initUid == KMMFileHandleSourceUid)
+ {
+ TPckgBuf<RFile*> fileptr;
+ stream.ReadL(fileptr);
+
+ iHandle.Duplicate(*fileptr());
+
+ TInt length;
+ length = stream.ReadInt32L();
+ if (length>0)
+ {
+ iUniqueId = HBufC::NewL(length);
+ TPtr16 ptr = iUniqueId->Des();
+ stream.ReadL(ptr, length);
+ }
+ iFileHandle = ETrue;
+ filename = HBufC::NewMaxL(KMaxFileName);
+ TPtr ptr = filename->Des();
+ iHandle.Name(ptr);
+ fileInit = ETrue;
+ drmContent = ETrue;
+ }
+
+ else if (initUid == KMMFileSourceUid)
+ {
+ TInt length;
+ length = stream.ReadInt32L();
+ filename = HBufC::NewMaxLC(length);
+ TPtr ptr = filename->Des();
+ stream.ReadL(ptr, length);
+
+ length = stream.ReadInt32L();
+ if (length>0)
+ {
+ iUniqueId = HBufC::NewMaxL(length);
+ ptr.Set(iUniqueId->Des());
+ stream.ReadL(ptr, length);
+ }
+ CleanupStack::Pop(filename);
+
+ fileInit = ETrue;
+ drmContent = ETrue;
+ }
+ else
+ {
+// TODO If the UID is unknown we should reject, but currently
+// code also used for older calls that just supply filename.
+// User::Leave(KErrNotSupported);
+ }
+
+ CleanupStack::PopAndDestroy(&stream);
+
+ if (!fileInit && aInitData.Length() == sizeof(TMMFFileHandleParams))
+ {
+ TMMFFileHandleParams params;
+ TPckgC<TMMFFileHandleParams> config(params);
+ config.Set(aInitData);
+ params = config();
+
+
+ if (params.iUid == KFileHandleUid)
+ {
+ fileInit = ETrue;
+ User::LeaveIfError(iHandle.Duplicate(*params.iFile));
+ TInt pos = 0;
+ // make sure the duplicate handle is at the start of the file - the usage of the file handle really requires this
+ User::LeaveIfError(iHandle.Seek(ESeekStart, pos));
+ iFileHandle = ETrue;
+ filename = HBufC::NewMaxLC(KMaxFileName);
+ filenamePushed = ETrue;
+ TPtr ptr = filename->Des();
+ User::LeaveIfError(iHandle.Name(ptr));
+ }
+ }
+
+
+ if (!fileInit) // do old case as last resort
+ {
+ TMMFFileParams params;
+ TPckgC<TMMFFileParams> config(params);
+ config.Set(aInitData);
+ params = config();
+
+ filename = params.iPath.AllocL();
+ fileInit = ETrue;
+ }
+
+ if (!filenamePushed)
+ {
+ // from now on it is assumed pushed.
+ CleanupStack::PushL(filename);
+ }
+
+ TParse parser ;
+ User::LeaveIfError(parser.Set(*filename, NULL, NULL));
+ CleanupStack::PopAndDestroy(filename);
+ if ( !( parser.NamePresent() ) && !( parser.ExtPresent() ) )
+ User::Leave( KErrBadName ) ;
+
+ iFullFileName.Copy( parser.FullName() ) ;
+ iFileName = parser.Name().AllocL() ;
+ iFileExt = parser.Ext().AllocL() ;
+ iFilePath = parser.Path().AllocL() ;
+ iFileDrive = parser.Drive().AllocL() ;
+
+
+ // in order to simulate old behaviour we are not passing error out
+ // but will try to create Content again during PrimeL()
+ if (fileInit && drmContent && aFileMode==ESourceMode)
+ {
+ TInt contentError;
+ if (iFileHandle)
+ {
+ TRAP(contentError,
+ iFile = CContentFile::NewL(iHandle, UniqueId());
+ );
+ }
+ else
+ {
+ // Open for read-only access
+ //rj progressive download needs shared access
+ TRAP(contentError,
+ iFile = CContentFile::NewL(iFsSession, iFullFileName, UniqueId(), EFileShareAny);
+ );
+ }
+ iFileOpen = (contentError==KErrNone);
+ }
+
+ (void)(aFileMode=ESourceMode); // prevent from compiler warning
+
+ }
+
+
+/**
+@deprecated
+
+Returns an RFile handle to the current file.
+
+If there is no current file, one is created. If the file exists then it is opened with read access
+if it is read only, write access otherwise. If the file does not exist then it is opened with
+write access.
+
+@leave KErrNotReady
+ The file is not open.
+
+@return A handle to the current file.
+*/
+RFile& CProgressiveDownloadSource::FileL()
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::FileL"));
+ #endif
+ if (!iFile)
+ User::Leave(KErrNotReady);
+ if (iFileHandle)
+ return iHandle;
+ else
+ return iFile->FileL();
+
+ }
+
+/**
+Returns the file name of the current file.
+
+Note: This will give the wrong answer if the file is renamed!
+
+@return The FileName (without extension).
+*/
+const TDesC& CProgressiveDownloadSource::FileName() const
+ {
+ return *iFileName ;
+ }
+
+/**
+Returns the extension of the current file.
+
+Note: This will give the wrong answer if the file is renamed!
+
+@return The File Extension.
+*/
+const TDesC& CProgressiveDownloadSource::Extension() const
+ {
+ return *iFileExt ;
+ }
+
+/**
+Returns the path of the current file.
+
+Note: This will give the wrong answer if the file is renamed!
+
+@return The FilePath (without filename and extension)
+*/
+const TDesC& CProgressiveDownloadSource::FilePath() const
+ {
+ return *iFilePath ;
+ }
+
+/**
+Returns the drive on which the current file is located.
+
+Note: This will give the wrong answer if the file is renamed!
+
+@return The FileDrive (drive letter only, without path, filename and extension).
+*/
+const TDesC& CProgressiveDownloadSource::FileDrive() const
+ {
+ return *iFileDrive ;
+ }
+
+/**
+Returns the full name of the current file.
+
+Note: This will give the wrong answer if the file is renamed!
+
+@return The file name (full filename including drive letter, without path, filename and extension).
+*/
+const TFileName CProgressiveDownloadSource::FullName() const
+ {
+ return iFullFileName;
+ }
+
+
+/**
+Returns the uniqueID associated with this content. If no uniqueID has been provided, a null
+descriptor will be provided
+
+@return The UniqueID
+*/
+const TDesC& CProgressiveDownloadSource::UniqueId() const
+ {
+ if (iUniqueId)
+ return *iUniqueId;
+ else
+ return KNullDesC;
+ }
+
+
+
+/**
+Deletes the file.
+
+Closes the currently open file, then deletes it. If the file source is accessing a file handle,
+the file is truncated to 0 bytes instead.
+
+@return An error code indicating if the function call was successful. KErrNone on success, otherwise
+ another of the system-wide error codes.
+*/
+TInt CProgressiveDownloadSource::Delete()
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::Delete"));
+ #endif
+ if (!iFileHandle)
+ {
+ delete iFile;
+ iFile = NULL;
+ iFileSize=-1;
+ iPosition=0;
+
+ return iFsSession.Delete(iFullFileName);
+ }
+ else
+ {
+ iFileSize=-1;
+ iPosition=0;
+
+ return iFile->SetSize(0);
+ }
+
+ }
+
+/**
+Sets the file size.
+
+@param aSize
+ The size of the file.
+
+@return An error code indicating if the function call was successful. KErrNone on success, otherwise
+ another of the system-wide error codes.
+*/
+TInt CProgressiveDownloadSource::SetSize(TInt aSize)
+ {
+ #if _DEBUG
+ RDebug::Print(_L("[%x]CProgressiveDownloadSource::SetSize to %d"),this,aSize);
+ #endif
+
+ iFix = aSize;
+
+ if ( !iFile )
+ return KErrNotReady;
+
+ TInt err = iFile->SetSize(aSize);
+ if(err == KErrNone)
+ iFileSize = aSize;
+ else
+ iFileSize = -1;
+
+ return err;
+ }
+
+/**
+Obtains a CTransferBufferCopy from iTransferBufferCopies that is
+at least as big as that required.
+
+There is no need to put the pointer returned by this method onto the CleanupStack
+as it will have already been placed into iTransferBufferCopies.
+
+@param aMaxLength
+ The size required.
+
+@return A pointer to a valid CTransferBufferCopy.
+*/
+CTransferBufferCopy* CProgressiveDownloadSource::ObtainCopyOfTransferBufferL(TInt aMaxLength)
+ {
+ //find a free transfer buffer copy of the right size
+ TInt firstFree = -1;
+ CTransferBufferCopy* transBufCopyToUse = NULL;
+
+ for(TInt cnt=0; cnt < iTransferBufferCopies.Count(); cnt++)
+ {
+ if(!iTransferBufferCopies[cnt]->InUse())
+ {
+ //record the first free entry, we may remove this
+ //if entries in iTransferBufferCopies > KAcceptableTransferBufferCopiesSize
+ if(firstFree == -1)
+ firstFree = cnt;
+
+ if(iTransferBufferCopies[cnt]->MaxLength() >= aMaxLength)
+ {
+ transBufCopyToUse = iTransferBufferCopies[cnt];
+
+ //Set the MaxLength. This will ensure that the copy acts the same as
+ //the original Transfer buffer, eg. file server will throw KErrOverflow
+ transBufCopyToUse->ReUse(aMaxLength);
+ break;
+ }
+ }
+ }
+
+ //If we failed to find a suitable entry, we need to create a new one
+ if(!transBufCopyToUse)
+ {
+ //Firstly, should we re-cycle an existing entry?
+ //There must be entries in the array, a free entry must have been found,
+ //the size of the array must be beyond the water mark where we want to start
+ //cycling free entries.
+ if((iTransferBufferCopies.Count() > 0) &&
+ (firstFree != -1) &&
+ (iTransferBufferCopies.Count() > KAcceptableTransferBufferCopiesSize))
+ {
+ delete iTransferBufferCopies[firstFree];
+ iTransferBufferCopies.Remove(firstFree);
+
+ transBufCopyToUse = CTransferBufferCopy::NewL(aMaxLength);
+ CleanupStack::PushL(transBufCopyToUse);
+ User::LeaveIfError(iTransferBufferCopies.Insert(transBufCopyToUse,firstFree));
+
+ CleanupStack::Pop();
+ }
+ else
+ {
+#ifdef _DEBUG
+ if(iTransferBufferCopies.Count() > KMaximumTransferBufferCopiesSize)
+ {
+ User::Panic(_L("iTransferBufferCopies grew too large in CProgressiveDownloadSource"),KErrTooBig);
+ }
+#endif
+
+ transBufCopyToUse = CTransferBufferCopy::NewL(aMaxLength);
+ CleanupStack::PushL(transBufCopyToUse);
+ User::LeaveIfError(iTransferBufferCopies.Append(transBufCopyToUse));
+
+ CleanupStack::Pop();
+ }
+ }
+
+ return transBufCopyToUse;
+ }
+
+
+
+/**
+Loads aBuffer from iFile.
+
+The file must already be open for reading. File read is asynchronous. CReadRequest is created to
+respond to completion.
+
+@param aBuffer
+ The buffer to be filled from the file.
+@param aConsumer
+ The data sink consumer of the buffer.
+*/
+void CProgressiveDownloadSource::FillBufferL( CMMFBuffer* aBuffer, MDataSink* aConsumer, TMediaId /*aMediaId*/ )
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::FillBufferL"));
+ #endif
+ // Requires that iFile is open for read.
+ // Reads data from iFile into aBuffer
+ if ((aConsumer == NULL) || (aBuffer == NULL))
+ User::Leave(KErrArgument);
+
+ if (!iFile || (iMmfFileEventHandler == NULL))
+ User::Leave(KErrNotReady);
+
+ if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ CTransferBufferCopy* transBufCopy = NULL;
+ CReadRequest* request = NULL;
+
+ TDes8& aBufferDes = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data();
+
+ TInt requestSize;
+ if(aBuffer->RequestSize())
+ requestSize = aBuffer->RequestSize();
+ else
+ requestSize = aBufferDes.MaxLength();
+
+ //check whether buffer is safe to send to file server
+ //if not, eg for a transfer buffer, then it needs to be copied
+ if (!CMMFBuffer::IsFileServerSafe(aBuffer->Type()))
+ {
+ //NB: failure in this method will NOT cause transBufCopy to leak as it will be
+ //inserted into iTransferBufferCopies by ObtainCopyOfTransferBufferL.
+ transBufCopy = ObtainCopyOfTransferBufferL(aBufferDes.MaxLength());
+ request = new(ELeave) CReadRequest(STATIC_CAST(TAny*, aConsumer), aBuffer, transBufCopy, iPosition, Size(),iBytesDownloaded, iMmfFileEventHandler);
+ }
+ else
+ {
+ request = new(ELeave) CReadRequest(STATIC_CAST(TAny*, aConsumer), aBuffer, iPosition, Size(),iBytesDownloaded, iMmfFileEventHandler);
+ }
+
+ CleanupStack::PushL( request );
+
+ StoreRequestL(request); // transfers ownership
+ CleanupStack::Pop() ; // request
+
+ iFile->Read(request->BufferDes(), requestSize, request->iStatus);
+ iPosition += requestSize;
+
+ if (iPosition >= iFileSize)
+ {
+ aBuffer->SetLastBuffer(ETrue);
+ }
+
+ request->SetActive();
+ }
+ else // if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ User::Leave( KErrNotSupported ) ;
+ }
+
+/**
+Empties aBuffer into iFile. The file must be already open for writing.
+
+@param aBuffer
+ The buffer to be written to the file.
+@param aSupplier
+ The data source supplier of the buffer.
+*/
+void CProgressiveDownloadSource::EmptyBufferL( CMMFBuffer* aBuffer, MDataSource* aSupplier, TMediaId /*aMediaId*/ )
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::EmptyBufferL"));
+ #endif
+ // Requires that iFile is open for write.
+ // Writes data from iFile into aBuffer
+ if ((aSupplier == NULL) || (aBuffer == NULL))
+ User::Leave(KErrArgument);
+
+ if (!iFile || (iMmfFileEventHandler == NULL))
+ User::Leave(KErrNotReady);
+
+ CTransferBufferCopy* transBufCopy = NULL;
+
+ if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ CWriteRequest* request = NULL;
+ TDes8& aBufferDes = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data();
+
+ //check whether buffer is safe to send to file server
+ //if not, eg for a transfer buffer, then it needs to be copied
+ if (!CMMFBuffer::IsFileServerSafe(aBuffer->Type()))
+ {
+ //Obtain a normal buffer to send to the file server
+ //NB: failure in this method will NOT cause transBufCopy to leak as it will be
+ //inserted into iTransferBufferCopies by ObtainCopyOfTransferBufferL.
+ transBufCopy = ObtainCopyOfTransferBufferL(aBufferDes.MaxLength());
+
+ //Copy the data into the buffer we will send to the file server
+ transBufCopy->Des().Copy(aBufferDes);
+
+ request = new(ELeave) CWriteRequest(STATIC_CAST(TAny*, aSupplier), aBuffer, transBufCopy, iMmfFileEventHandler);
+ }
+ else
+ {
+ request = new(ELeave) CWriteRequest(STATIC_CAST(TAny*, aSupplier), aBuffer, iMmfFileEventHandler);
+ }
+
+ CleanupStack::PushL( request );
+
+ StoreRequestL(request); // transfers ownership
+ CleanupStack::Pop(); // request
+
+ iFile->Write(request->BufferDes(), request->BufferDes().Length(), request->iStatus);
+ request->SetActive();
+ }
+ else // if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ User::Leave( KErrNotSupported ) ;
+ }
+ }
+
+/**
+Loads aLength number of bytes into aBuffer from specified point in iFile.
+
+@param aLength
+ The number of bytes to be read into buffer.
+@param aBuffer
+ The buffer to be filled from the file.
+@param aPosition
+ The offset into the file at which to start reading.
+@param aConsumer
+ The data sink consumer of the buffer.
+*/
+void CProgressiveDownloadSource::ReadBufferL(TInt aLength, CMMFBuffer* aBuffer, TInt aPosition, MDataSink* aConsumer)
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::ReadBufferL Async"));
+ #endif
+ // Requires that iFile is open for read.
+ // Reads data from iFile into aBuffer
+ if ((aLength < 0) || (aPosition<0) || (aConsumer == NULL) || (aBuffer == NULL))
+ User::Leave(KErrArgument);
+
+ if (!iFile || (iMmfFileEventHandler == NULL))
+ User::Leave(KErrNotReady);
+
+ CTransferBufferCopy* transBufCopy = NULL;
+
+ if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ CReadRequest* request = NULL;
+ TDes8& aBufferDes = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data();
+
+ //check whether buffer is safe to send to file server
+ //if not, eg for a transfer buffer, then it needs to be copied
+ if (!CMMFBuffer::IsFileServerSafe(aBuffer->Type()))
+ {
+ //Obtain a normal buffer to send to the file server
+ //NB: failure in this method will NOT cause transBufCopy to leak as it will be
+ //inserted into iTransferBufferCopies by ObtainCopyOfTransferBufferL.
+ transBufCopy = ObtainCopyOfTransferBufferL(aBufferDes.MaxLength());
+
+ request = new(ELeave) CReadRequest(STATIC_CAST(TAny*, aConsumer), aBuffer, transBufCopy, aPosition, Size(), iBytesDownloaded,iMmfFileEventHandler);
+ }
+ else
+ {
+ request = new(ELeave) CReadRequest(STATIC_CAST(TAny*, aConsumer), aBuffer, aPosition, Size(), iBytesDownloaded,iMmfFileEventHandler);
+ }
+
+ CleanupStack::PushL( request );
+
+ StoreRequestL(request) ; //transfers ownership
+ CleanupStack::Pop() ; //request
+
+
+
+ TInt err = iFile->Seek(ESeekStart, aPosition);
+ if (err==KErrNone)
+ iFile->Read(request->BufferDes(), aLength, request->iStatus);
+ else
+ {
+ TRequestStatus* status = &request->iStatus;
+ User::RequestComplete(status, err);
+ }
+
+ //rj wait until runl is completed
+ // iPosition = aPosition + aLength;
+ iPosition = aPosition;
+
+ // rj if (iPosition >= iFileSize)
+ // {
+ // aBuffer->SetLastBuffer(ETrue);
+ // }
+
+ request->SetActive();
+ }
+ else // if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ User::Leave( KErrNotSupported ) ;
+ }
+
+
+/**
+Loads aBuffer from specified point in iFile.
+
+The file must already be open for reading.
+
+@param aBuffer
+ The buffer to be filled from the file.
+@param aPosition
+ The offset into file at which to start reading.
+@param aConsumer
+ The data sink consumer of the buffer.
+*/
+void CProgressiveDownloadSource::ReadBufferL(CMMFBuffer* aBuffer, TInt aPosition, MDataSink* aConsumer)
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::ReadBufferL Async"));
+ #endif
+
+ // Requires that iFile is open for read.
+ // Reads data from iFile into aBuffer
+ if ((aPosition<0) || (aConsumer == NULL) || (aBuffer == NULL))
+ User::Leave(KErrArgument);
+
+ if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ TInt requestSize;
+ if(aBuffer->RequestSize())
+ requestSize = aBuffer->RequestSize();
+ else
+ requestSize = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data().MaxLength();
+
+ ReadBufferL(requestSize, aBuffer, aPosition, aConsumer);
+ }
+ else // if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ User::Leave(KErrNotSupported);
+ }
+
+
+/**
+Loads aBuffer from specified point in iFile. Note that this is a synchronous read.
+
+@param aBuffer
+ The buffer to be filled from the file.
+@param aPosition
+ The offset into file at which to start reading.
+*/
+void CProgressiveDownloadSource::ReadBufferL( CMMFBuffer* aBuffer, TInt aPosition)
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::ReadBufferL Sync"));
+ #endif
+ // Requires that iFile is open for read.
+ // Reads data from iFile into aBuffer
+ if ((aPosition<0) || (aBuffer == NULL))
+ User::Leave(KErrArgument);
+
+ if (!iFile)
+ User::Leave(KErrNotReady);
+
+ if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ TDes8& aBufferDes = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data();
+
+ TInt requestSize;
+ if(aBuffer->RequestSize())
+ requestSize = aBuffer->RequestSize();
+ else
+ requestSize = aBufferDes.MaxLength();
+
+ //check whether buffer is safe to send to file server
+ //if not, eg for a transfer buffer, then it needs to be copied
+ if (!CMMFBuffer::IsFileServerSafe(aBuffer->Type()))
+ {
+ //NB: failure in this method will NOT cause transBufCopy to leak as it will be
+ //inserted into iTransferBufferCopies by ObtainCopyOfTransferBufferL.
+ CTransferBufferCopy* transBufCopy = ObtainCopyOfTransferBufferL(aBufferDes.MaxLength());
+
+ User::LeaveIfError(iFile->Seek(ESeekStart, aPosition));
+ User::LeaveIfError(iFile->Read(transBufCopy->Des(), requestSize));
+ aBufferDes.Copy(transBufCopy->Des().Left(aBufferDes.MaxLength()));
+ }
+ else
+ {
+ User::LeaveIfError(iFile->Seek(ESeekStart, aPosition));
+ User::LeaveIfError(iFile->Read(aBufferDes, requestSize));
+ }
+
+ iPosition = aPosition + aBufferDes.Length();
+
+ //check if the buffer is the last buffer and if so set the last buffer flag on the CMMFDataBuffer
+ //NB: setting last buffer is the done by the formatter, but this is a hang over to account for
+ //existing formatters that may fail if this is removed.
+ if (aBufferDes.Length() < requestSize)
+ aBuffer->SetLastBuffer(ETrue);
+ }
+ else // if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ User::Leave(KErrNotSupported);
+ }
+
+/**
+Empties aLength bytes from aBuffer into iFile at specified location.
+
+@param aLength
+ The number of bytes to be emptied from buffer.
+@param aBuffer
+ The data buffer containing bytes to be written.
+@param aPosition
+ The offset into file at which to start writing.
+@param aSupplier
+ The data source to be notified when the write has been completed.
+
+@leave KErrNotReady
+ SinkPrimeL() and SinkThreadLogon() have not been called.
+@leave KErrArgument
+ aLength<0 or aPosition<0 or aSupplier is NULL.
+@leave KErrNotSupported
+ aBuffer is not a supported CMMFDataBuffer
+*/
+void CProgressiveDownloadSource::WriteBufferL(TInt aLength, CMMFBuffer* aBuffer, TInt aPosition, MDataSource* aSupplier)
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::WriteBufferL Async"));
+ #endif
+
+ if ((aLength<0) || (aPosition<0) || (aSupplier == NULL) || (aBuffer == NULL))
+ User::Leave(KErrArgument);
+
+ if (!iFile || (iMmfFileEventHandler == NULL))
+ User::Leave(KErrNotReady);
+
+ if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ CWriteRequest* request = NULL;
+ TDes8& aBufferDes = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data();
+
+ //check whether buffer is safe to send to file server
+ //if not, eg for a transfer buffer, then it needs to be copied
+ if (!CMMFBuffer::IsFileServerSafe(aBuffer->Type()))
+ {
+ //NB: failure in this method will NOT cause transBufCopy to leak as it will be
+ //inserted into iTransferBufferCopies by ObtainCopyOfTransferBufferL.
+ CTransferBufferCopy* transBufCopy = ObtainCopyOfTransferBufferL(aBufferDes.MaxLength());
+
+ transBufCopy->Des().Copy(aBufferDes);
+
+ request = new(ELeave) CWriteRequest(STATIC_CAST(TAny*, aSupplier), aBuffer, transBufCopy, iMmfFileEventHandler);
+ }
+ else
+ {
+ request = new(ELeave) CWriteRequest(STATIC_CAST(TAny*, aSupplier), aBuffer, iMmfFileEventHandler);
+ }
+
+ CleanupStack::PushL( request );
+
+ StoreRequestL(request); // transfers ownership
+ CleanupStack::Pop(); // request
+
+ iFile->Seek(ESeekStart, aPosition);
+ iFile->Write(request->BufferDes(), aLength, request->iStatus);
+ //iFileSize = -1; //reset cached size
+
+ request->SetActive();
+ }
+ else // if (!CMMFBuffer::IsFileServerSafe(aBuffer->Type()))
+ {
+ //write bitmap to file
+ User::Leave(KErrNotSupported);
+ }
+ }
+
+/**
+Empties aBuffer into iFile at the specified location.
+
+@param aBuffer
+ The data buffer containing bytes to be written.
+@param aPosition
+ The offset into file at which to start writing.
+@param aSupplier
+ The data source to be notified when the write has been completed.
+
+@leave KErrNotReady
+ SinkPrimeL() and SinkThreadLogon() have not been called.
+@leave KErrArgument
+ aSupplier is NULL.
+@leave KErrNotSupported
+ The aBuffer is not of type KMMFDataBuffer.
+*/
+void CProgressiveDownloadSource::WriteBufferL( CMMFBuffer* aBuffer, TInt aPosition, MDataSource* aSupplier)
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::WriteBufferL Async"));
+ #endif
+ // Requires that iFile is open for write.
+ // Writes data from iFile into aBuffer
+ if ((aPosition<0) || (aSupplier == NULL) || (aBuffer == NULL))
+ User::Leave(KErrArgument);
+
+ if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ TUint requestSize = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data().Length();
+
+ WriteBufferL(requestSize, aBuffer, aPosition, aSupplier);
+ }
+ else // if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ //write bitmap to file
+ User::Leave( KErrNotSupported ) ;
+ }
+ }
+
+/**
+Empties aBuffer into iFile at specified location. Note that this is a synchronous write.
+
+@param aBuffer
+ The data buffer containing bytes to be written.
+@param aPosition
+ The offset into file at which to start writing.
+
+@return The error code from RFile.
+*/
+void CProgressiveDownloadSource::WriteBufferL( CMMFBuffer* aBuffer, TInt aPosition )
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::WriteBufferL Sync"));
+ #endif
+ if ((aPosition<0) || (aBuffer == NULL))
+ User::Leave(KErrArgument);
+
+ if (!iFile)
+ User::Leave(KErrNotReady);
+
+ TInt err(KErrNone) ;
+
+ //check whether buffer is safe to send to file server
+ //if not, eg for a transfer buffer, then it needs to be copied
+ if ((!CMMFBuffer::IsFileServerSafe(aBuffer->Type()))
+ && (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type())))
+ {
+ TDes8& aBufferDes = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data();
+
+ //NB: failure in this method will NOT cause transBufCopy to leak as it will be
+ //inserted into iTransferBufferCopies by ObtainCopyOfTransferBufferL.
+ CTransferBufferCopy* transBufCopy = ObtainCopyOfTransferBufferL(aBufferDes.MaxLength());
+
+ transBufCopy->Des().Copy(aBufferDes);
+ err = iFile->Seek(ESeekStart, aPosition);
+ if (err==KErrNone)
+ err = iFile->Write(transBufCopy->Des(),transBufCopy->Des().Length());
+ //iFileSize = -1; //reset cached size
+ }
+ else if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ TDes8& aBufferDes = STATIC_CAST( CMMFDataBuffer*, aBuffer )->Data();
+
+ err = iFile->Seek(ESeekStart, aPosition);
+ if (err==KErrNone)
+ err = iFile->Write(aBufferDes, aBufferDes.Length());
+ //iFileSize = -1; //reset cached size
+ }
+ else // if (CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))
+ {
+ User::Leave(KErrNotSupported);
+ }
+
+ User::LeaveIfError(err);
+ }
+
+/**
+Gets the number of free bytes in the device's file system.
+
+@return The number of free bytes.
+*/
+TInt64 CProgressiveDownloadSource::BytesFree()
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::BytesFree"));
+ #endif
+
+ TVolumeInfo volInfo;
+ if (iFsSession.Volume(volInfo) == KErrNone)
+ return volInfo.iFree;
+ return TInt64(0);
+ }
+
+/**
+Returns the size of the file in bytes.
+
+Note: This is not the maximum length.
+
+@return The size of the file in bytes.
+*/
+TInt CProgressiveDownloadSource::Size()
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::size iFileSize %d"),iFileSize);
+ RDebug::Print(_L("CProgressiveDownloadSource::size iFixSize %d"),iFix);
+ #endif
+
+ TInt size = 0;
+ TInt err = KErrNone;
+ TBool fileOpened = EFalse;
+
+
+ if(iFix != 0) //rj
+ {
+ iFileSize = iFix;
+ return iFix;
+ }
+
+
+ if(iFileSize != -1)
+ return iFileSize;
+
+ if (!iFile)
+ {
+ // Open the file.
+ TRAP(err, SourcePrimeL());
+ if (iFile)
+ fileOpened = ETrue;
+ }
+ if (err == KErrNone && iFile)
+ err = iFile->Size(size);
+ if (err)
+ {
+ size = 0;
+ // iFileSize = -1; //reset cached size
+ }
+ else
+ iFileSize = size; //cache the filesize
+
+ if (fileOpened)
+ TRAP_IGNORE(SourceStopL()); // Close the file
+
+ return size;
+
+ }
+
+/**
+Source thread logon.
+
+Shares fsSession between threads
+
+@param aEventHandler
+ This is an MAsyncEventHandler to handle asynchronous events that occur during the
+ transfer of multimedia data.
+
+@return An error code indicating if the function call was successful. KErrNone on success, otherwise
+ another of the system-wide error codes.
+*/
+TInt CProgressiveDownloadSource::SourceThreadLogon(MAsyncEventHandler& aEventHandler)
+ {
+ iEventHandler = &aEventHandler;
+ if(!iMmfFileEventHandler)
+ {
+ iMmfFileEventHandler = new CMMFFileAsyncEventHandler(this);
+ if(!iMmfFileEventHandler)
+ return KErrNoMemory;
+ }
+#ifdef __IPC_V2_PRESENT__
+ return KErrNone; // nothing to do
+#else
+ return iFsSession.Attach();
+#endif // __HIDE_IPC_V1__
+ }
+
+/**
+Logs off source thread.
+*/
+void CProgressiveDownloadSource::SourceThreadLogoff()
+ {
+ delete iMmfFileEventHandler;
+ iMmfFileEventHandler = NULL;
+ iEventHandler = NULL;
+ }
+
+
+/**
+Sink thread logon.
+
+Shares fsSession between threads.
+
+@param aEventHandler
+ This is an MAsyncEventHandler to handle asynchronous events that occur during the
+ transfer of multimedia data.
+
+@return An error code indicating if the function call was successful. KErrNone on success, otherwise
+ another of the system-wide error codes.
+*/
+TInt CProgressiveDownloadSource::SinkThreadLogon(MAsyncEventHandler& aEventHandler)
+ {
+ iEventHandler = &aEventHandler;
+ if(!iMmfFileEventHandler)
+ {
+ iMmfFileEventHandler = new CMMFFileAsyncEventHandler(this);
+ if(!iMmfFileEventHandler)
+ return KErrNoMemory;
+ }
+#ifdef __IPC_V2_PRESENT__
+ return KErrNone;
+#else
+ return iFsSession.Attach();
+#endif // __HIDE_IPC_V1__
+ }
+
+/**
+Sink thread log off.
+*/
+void CProgressiveDownloadSource::SinkThreadLogoff()
+ {
+ delete iMmfFileEventHandler;
+ iMmfFileEventHandler = NULL;
+ iEventHandler = NULL;
+ }
+
+/**
+Stores a request in an array.
+
+CReadWriteRequests are stored in the array iRequests.
+This function takes ownership and places the request in the array.
+It also checks the array for completed requests and removes them.
+
+@param aRequest
+ The request to store.
+*/
+void CProgressiveDownloadSource::StoreRequestL( CReadWriteRequest* aRequest )
+ {
+ // add aRequest to iRequests
+ User::LeaveIfError( iRequests.Append( aRequest ) ) ;
+
+ // Clear out any completed requests
+ for ( TInt ii = 0 ; ii < iRequests.Count() ; ii++ )
+ {
+ if (iRequests[ii]->Completed())
+ {
+ CReadWriteRequest* request = iRequests[ii];
+ delete request;
+
+ iRequests.Remove(ii);
+ ii--;
+ }
+ }
+ }
+
+
+/**
+Cancels outstanding requests.
+
+CReadWriteRequests are stored in the array iRequests.
+This function cancels any outstanding requests and removes them
+from iRequests.
+*/
+void CProgressiveDownloadSource::CancelRequests()
+ {
+ // Clear out any completed requests
+ for ( TInt ii = 0 ; ii < iRequests.Count() ; ii++ )
+ {
+ CReadWriteRequest* request = iRequests[ii];
+ delete request;
+ iRequests.Remove(ii);
+ ii--;
+ }
+ }
+
+
+
+/**
+Returns the data type as a fourCC code of CProgressiveDownloadSource as a data source.
+
+@return The data type fourCC code.
+*/
+TFourCC CProgressiveDownloadSource::SourceDataTypeCode(TMediaId /*aMediaId*/)
+ {
+ return iSourceFourCC ;
+ }
+
+/**
+Returns the data type as a fourCC code of CProgressiveDownloadSource as a data sink.
+
+@return The data type fourCC code
+*/
+TFourCC CProgressiveDownloadSource::SinkDataTypeCode(TMediaId /*aMediaId*/)
+ {
+ return iSinkFourCC ;
+ }
+
+
+/**
+CProgressiveDownloadSource as a source is always passive so this function is not supported.
+
+@param aBuffer
+ The emptied buffer.
+*/
+void CProgressiveDownloadSource::BufferEmptiedL(CMMFBuffer* /* aBuffer */)
+ {
+ Panic(EMMFFilePanicBufferEmptiedLNotSupported);
+ }
+
+/**
+Tests whether a source buffer can be created.
+
+@return A boolean indicating if if CProgressiveDownloadSource can create its own buffer. EFalse if CProgressiveDownloadSource cannot
+ create it's own buffer.
+*/
+TBool CProgressiveDownloadSource::CanCreateSourceBuffer()
+ {
+ return EFalse;
+ }
+
+/**
+Creates a source buffer.
+
+@param aMediaId
+ The Media ID.
+@param aReference
+ A boolean indicating if MDataSource owns the buffer. ETrue if it does, EFalse if the caller
+ owns the buffer.
+
+@return NULL as a CProgressiveDownloadSource cannot create it's own buffer
+*/
+CMMFBuffer* CProgressiveDownloadSource::CreateSourceBufferL( TMediaId /*aMediaId*/ , TBool& /*aReference*/)
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::CreateSourceBufferL"));
+ #endif
+ User::Leave(KErrNotSupported);
+ return NULL ;
+ }
+
+/**
+CProgressiveDownloadSource as a sink is always passive so this function is not supported.
+
+@param aBuffer
+ The buffer.
+*/
+void CProgressiveDownloadSource::BufferFilledL(CMMFBuffer* /* aBuffer */)
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::BufferFilledL"));
+ #endif
+ Panic(EMMFFilePanicBufferFilledLNotSupported);
+ }
+
+/**
+Tests whether a sink buffer can be created.
+
+@return A boolean indicating if the sink buffer can be created. EFalse if CProgressiveDownloadSource cannot create
+ it's own buffer
+*/
+TBool CProgressiveDownloadSource::CanCreateSinkBuffer()
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::CanCreateSinkBuffer"));
+ #endif
+ return EFalse ;
+ }
+
+/**
+Creates a sink buffer.
+
+@param aMediaId
+ The Media ID.
+@param aReference
+ A boolean indicating if MDataSource owns the buffer. ETrue if MDataSource owns the buffer,
+ EFalse if the caller owns the buffer.
+
+@return NULL as a CProgressiveDownloadSource cannot create it's own buffer
+*/
+CMMFBuffer* CProgressiveDownloadSource::CreateSinkBufferL(TMediaId /*aMediaId*/ , TBool& /*aReference*/)
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::CreateSinkBufferL"));
+ #endif
+ User::Leave(KErrNotSupported);
+ return NULL ;
+ }
+
+
+/**
+Primes the source.
+
+When used as a source, the file prime opens the file as read only.
+*/
+void CProgressiveDownloadSource::SourcePrimeL()
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::SourcePrimeL"));
+ #endif
+
+ // don't reopen file if already open
+ if (!iFile)
+ {
+
+ if (iFileHandle)
+ {
+ iFile = CContentFile::NewL(iHandle, UniqueId());
+ }
+ else
+ {
+ // rj Open for progressive download need to have shared access
+ iFile = CContentFile::NewL(iFsSession, iFullFileName, UniqueId(), EFileShareAny);
+
+ }
+
+ }
+ iFileOpen = ETrue;
+ }
+
+/**
+Primes the sink.
+
+When used as a sink, the file prime opens the file for read/write access.
+*/
+void CProgressiveDownloadSource::SinkPrimeL()
+ {
+ // don't reopen file if already open
+ if (!iFile)
+ {
+
+ if (iFileHandle)
+ iFile = CF32File::NewL(iHandle);
+ else
+ iFile = CF32File::NewL(iFsSession, iFullFileName, EFileRead | EFileWrite);
+
+ iSinkNotStopped = ETrue;
+ }
+ iFileOpen = ETrue;
+ }
+
+/**
+Stops the file source. When stopping close the file.
+*/
+void CProgressiveDownloadSource::SourceStopL()
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::SourceStopL"));
+ #endif
+ CancelRequests();
+
+ if(iFile == NULL) //rj
+ return;
+
+ iFileOpen = EFalse;
+ TInt pos = 0;
+ if (!iFileHandle && !iFile->IsProtected())
+ {
+ delete iFile;
+ iFile = NULL;
+ // iFileSize = -1;
+ }
+ else
+ {
+ User::LeaveIfError(iFile->Seek(ESeekStart, pos));
+
+ }
+
+ iPosition=pos;
+ }
+
+/**
+Stops the file sink.
+
+When stopping close the file.
+*/
+void CProgressiveDownloadSource::SinkStopL()
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::SinkStopL"));
+ #endif
+
+ CancelRequests();
+ iFileOpen = EFalse;
+ if (!iFileHandle)
+ {
+ iSinkNotStopped = EFalse;
+ delete iFile;
+ iFile = NULL;
+ }
+ else
+ {
+ TInt pos = 0;
+ User::LeaveIfError(iFile->Seek(ESeekStart, pos));
+ }
+ //iFileSize = -1;
+ iPosition=0;
+ }
+
+/**
+Returns a boolean indicating if the sink has been stopped.
+
+@return A boolean indicating if the sink has stopped.
+ */
+TBool CProgressiveDownloadSource::SinkStopped()
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::SinkStopped"));
+ #endif
+ if(iSinkNotStopped == EFalse)
+ return ETrue;
+ else
+ return EFalse;
+ }
+
+/**
+Evaluates a given intent against the rights associated with the file.
+
+The rights are not updated by this function call.
+
+@param aIntent
+ The intent to evaluate.
+
+@return An error code indicating if the function call was successful. KErrNone on success, otherwise
+ another of the system-wide error codes.
+*/
+TInt CProgressiveDownloadSource::EvaluateIntent(ContentAccess::TIntent aIntent) const
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::EvaluateIntent"));
+ #endif
+ if (iFile==NULL)
+ {
+ return KErrNotReady;
+ }
+
+ return iFile->EvaluateIntent(aIntent);
+ }
+
+/**
+Evaluates and executes a given intent against the rights associated with the file.
+
+The rights object is updated after calling this function.
+
+@param aIntent
+ The intent to evaluate.
+
+@return An error code indicating if the function call was successful. KErrNone on success, otherwise
+ another of the system-wide error codes.
+*/
+TInt CProgressiveDownloadSource::ExecuteIntent(ContentAccess::TIntent aIntent)
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::ExecuteIntent"));
+ #endif
+ if (!iFile)
+ return KErrNotReady;
+
+ return iFile->ExecuteIntent(aIntent);
+ }
+
+/**
+Returns whether the file is protected.
+
+@return A boolean indicating if the file is protected. ETrue if the file is protected.
+*/
+TBool CProgressiveDownloadSource::IsProtectedL() const
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::IsProtectedL"));
+ #endif
+ if (!iFile)
+ User::Leave(KErrNotReady);
+
+ return iFile->IsProtected();
+ }
+
+
+
+
+
+TInt CProgressiveDownloadSource::SetAgentProperty(ContentAccess::TAgentProperty aProperty, TInt aValue)
+ {
+ if (iFile==NULL)
+ {
+ return KErrNotReady;
+ }
+
+ return iFile->SetAgentProperty(aProperty, aValue);
+ }
+
+void CProgressiveDownloadSource::SourceCustomCommand(TMMFMessage& aMessage)
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::SourceCustomCommand"));
+ #endif
+
+ TInt err= KErrNone;
+ switch(aMessage.Function())
+ {
+ case EGETFILEPOSITION:
+ {
+ //get iPosition;
+ #if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::SrcCustomCommand file position %d"),iPosition);
+ #endif
+ TPckgBuf<TInt> positionPckg(iPosition);
+ err = aMessage.WriteDataToClient(positionPckg);
+
+ break;
+ }
+ case ESETFILESIZE:
+ {
+ //set file size;
+ TPckgBuf<TInt> fileSizePckg;
+ err = aMessage.ReadData1FromClient(fileSizePckg);
+ if((err==KErrNone) && (fileSizePckg()>0))
+ SetSize(fileSizePckg());
+
+ break;
+
+ }
+ case ESETBYTESDOWNLOADED:
+ {
+ TPckgBuf<TInt> bytesDownloadedPckg;
+ err = aMessage.ReadData1FromClient(bytesDownloadedPckg);
+
+ if((err==KErrNone) &&(bytesDownloadedPckg()>0))
+ iBytesDownloaded = bytesDownloadedPckg();
+ break;
+ }
+ default:
+ err = KErrNotSupported;
+ break;
+ }
+
+ aMessage.Complete(err);
+
+ }
+
+/*
+ * Returns ETrue if the request can safely be deleted.
+ */
+TBool CReadWriteRequest::Completed()
+ {
+ return iCompleted ;
+ }
+
+/*
+ * Returns the data member of CMMFDataBuffer or CMMFTransferBuffer (as TPtr8)
+ *
+ */
+TDes8& CReadWriteRequest::BufferDes()
+ {
+ if(iTransferBufferCopy)
+ return iTransferBufferCopy->Des();
+ else
+ {
+ //reset iBufferDes in case iBuffer has changed...
+ iBufferDes = &(STATIC_CAST(CMMFDataBuffer*, iBuffer)->Data());
+ return *iBufferDes;
+ }
+ }
+
+const TDesC8& CReadWriteRequest::BufferDesC()
+ {
+ if(iTransferBufferCopy)
+ return iTransferBufferCopy->Des();
+ else
+ return BufferDes();
+ }
+
+
+/*
+ * Destructor.
+ */
+CReadWriteRequest::~CReadWriteRequest()
+ {
+ Cancel();
+ if(iTransferBufferCopy)
+ iTransferBufferCopy->SetInUse(EFalse);
+ }
+
+/*
+ * Allows owning class access to SetActive()
+ */
+void CReadWriteRequest::SetActive()
+ {
+ CActive::SetActive() ;
+ }
+
+/*
+ * For the moment at least... Canceled requests may be deleted
+ */
+void CReadWriteRequest::DoCancel()
+ {
+ iCompleted = ETrue ;
+ }
+
+/*
+ * Called when errors in RunL force Leave. For the moment just mark the request deletable
+ */
+TInt CReadWriteRequest::RunError( TInt aError )
+ {
+ //RunL can leave.
+ iCompleted = ETrue ;
+ iError = aError; //keep this error internally for now
+ return KErrNone ;
+ }
+
+/*
+ * On completion of read request call back to the MDataSink
+ */
+void CReadRequest::RunL()
+ {
+
+ #if _DEBUG
+ RDebug::Print(_L("CReadRequest::RunL file byte position %d"),iPosition);
+ RDebug::Print(_L("CReadRequest::RunL buffer length %d"),BufferDes().Length());
+ #endif
+
+ if (iStatus != KErrNone)
+ {
+ TMMFEvent event(KMMFErrorCategoryControllerGeneralError, iStatus.Int());
+ iEventHandler->SendEventToClient(event);
+ }
+ else
+ {
+ //Copy the data from the normal buffer into the Transfer buffer
+ if(iTransferBufferCopy)
+ {
+ //must specify the size here as the dest may be smaller than the source.
+ TDes8& destDesc = STATIC_CAST(CMMFDataBuffer*, iBuffer)->Data();
+ destDesc.Copy(iTransferBufferCopy->Des().Left(destDesc.MaxLength()));
+
+ iTransferBufferCopy->SetInUse(EFalse);
+ }
+
+ #if _DEBUG
+ RDebug::Print(_L("CReadRequest::RunL bytes downloaded %d"),iBytesDownloaded);
+ #endif
+ if(iBytesDownloaded > 0 &&
+ iBytesDownloaded <= iPosition + BufferDes().Length() &&
+ iBytesDownloaded < iFileSize)
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CReadRequest::RunL - OUT OF DATA"));
+ #endif
+
+ STATIC_CAST(CMMFDataBuffer*, iBuffer)->Data().SetLength(0);
+
+ }
+ else
+ {
+ iPosition = iPosition + BufferDes().Length();
+ }
+
+ //has all the files data been read
+ if(iPosition >= iFileSize)
+ {
+ #if _DEBUG
+ RDebug::Print(_L("CReadRequest::RunL filesize %d"),iFileSize);
+ RDebug::Print(_L("CReadRequest::RunL file position %d"),iPosition);
+ RDebug::Print(_L("CReadRequest::RunL setlastbuffer "));
+ #endif
+
+ iBuffer->SetLastBuffer(ETrue);
+ }
+
+ REINTERPRET_CAST(MDataSink*, iSinkOrSource)->BufferFilledL(iBuffer) ; // callback to MDataSource/Sink
+ }
+
+ iCompleted = ETrue ;
+ }
+
+/*
+ * On completion of write request call back to the MDataSource
+ */
+void CWriteRequest::RunL()
+ {
+ if(iTransferBufferCopy)
+ iTransferBufferCopy->SetInUse(EFalse);
+
+ if (iStatus != KErrNone)
+ {
+ TMMFEvent event(KMMFErrorCategoryControllerGeneralError, iStatus.Int());
+ iEventHandler->SendEventToClient(event);
+ }
+ else
+ REINTERPRET_CAST(MDataSource*, iSinkOrSource)->BufferEmptiedL(iBuffer) ; // callback to MDataSource/Sink
+
+ iCompleted = ETrue ;
+ }
+
+CProgressiveDownloadSource::CMMFFileAsyncEventHandler::CMMFFileAsyncEventHandler(CProgressiveDownloadSource* aParent)
+ {
+ iParent = aParent;
+ }
+
+CProgressiveDownloadSource::CMMFFileAsyncEventHandler::~CMMFFileAsyncEventHandler()
+ {
+ }
+
+TInt CProgressiveDownloadSource::CMMFFileAsyncEventHandler::SendEventToClient(const TMMFEvent& aEvent)
+ {
+
+#if _DEBUG
+ RDebug::Print(_L("CProgressiveDownloadSource::CMMFFileAsyncEventHandler::SendEventToClient err=%d"),aEvent.iErrorCode);
+#endif
+
+ if(aEvent.iErrorCode == KErrNotReady)//i.e. MMC removed while recording
+ TRAP_IGNORE(iParent->SinkStopL());
+ return iParent->iEventHandler->SendEventToClient(aEvent);
+ }
+
+
+
+// __________________________________________________________________________
+// Exported proxy for instantiation method resolution
+// Define the interface UIDs
+
+const TImplementationProxy ImplementationTable[] =
+ {
+ IMPLEMENTATION_PROXY_ENTRY(KProgressiveDownloadSourceUid,CProgressiveDownloadSource::NewSourceL)
+ };
+
+EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
+ {
+ aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
+
+ return ImplementationTable;
+ }