--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/installationservices/swi/source/sisfile/sisdataunit.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,78 @@
+/*
+* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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: 
+* Definition of the Swi::Sis::CDataUnit
+*
+*/
+
+
+#include "sisdataunit.h"
+#include "sisfiledata.h"
+
+using namespace Swi::Sis;
+
+/*static*/ CDataUnit* CDataUnit::NewLC(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	CDataUnit* self = new(ELeave) CDataUnit();
+	CleanupStack::PushL(self);
+	self->ConstructL(aDataProvider, aBytesRead, aTypeReadBehaviour);
+	return self;
+	}
+
+/*static*/ CDataUnit* CDataUnit::NewL(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	CDataUnit* self = NewLC(aDataProvider, aBytesRead, aTypeReadBehaviour);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CDataUnit::CDataUnit()
+	{
+	}
+
+CDataUnit::~CDataUnit()
+	{
+	iCompressedFiles.ResetAndDestroy();
+	}
+
+void CDataUnit::ConstructL(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
+	{
+	
+	TInt64 fieldOffset = aBytesRead;
+	
+	CField::ConstructL(aDataProvider, EFieldTypeDataUnit, aBytesRead, aTypeReadBehaviour);
+
+	ReadMemberArrayL(aDataProvider, iCompressedFiles, EFieldTypeFileData, aBytesRead, EReadType);
+	CField::SkipUnknownFieldsL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);
+	CField::EnsureAlignedL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);
+	}
+	
+void CDataUnit::ExtractDataFileL(RFile& aFile, TInt aFileIndex)
+	{	
+	if ((aFileIndex < 0) || (aFileIndex >= iCompressedFiles.Count()))
+		{
+		User::Leave(KErrCorrupt);
+		}
+	
+	iCompressedFiles[aFileIndex]->ExtractDataFieldL(aFile);
+	}
+
+void CDataUnit::ExtractDataFileL(RFile& aFile, TInt aFileIndex, TInt64 aLength)
+	{
+	if ((aFileIndex < 0) || (aFileIndex >= iCompressedFiles.Count()))
+		{
+		User::Leave(KErrCorrupt);
+		}
+	iCompressedFiles[aFileIndex]->ExtractDataFieldL(aFile, aLength);
+	}