installationservices/swi/source/sisfile/siscapabilities.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 19 Aug 2010 10:02:49 +0300
branchRCL_3
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Revision: 201031 Kit: 201033
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/*
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* Copyright (c) 2004-2009 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: 
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* Definition of the Swi::Sis::CCapabilities
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*
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*/
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#include <e32def.h>
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#include "siscapabilities.h"
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#include "sisfieldtypes.h"
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using namespace Swi::Sis;
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EXPORT_C /*static*/ CCapabilities* CCapabilities::NewLC(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
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	{
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	CCapabilities* self = new(ELeave) CCapabilities();
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	CleanupStack::PushL(self);
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	self->ConstructL(aDataProvider, aBytesRead, aTypeReadBehaviour);
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	return self;
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	}
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EXPORT_C /*static*/ CCapabilities* CCapabilities::NewL(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
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	{
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	CCapabilities* self = NewLC(aDataProvider, aBytesRead, aTypeReadBehaviour);
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	CleanupStack::Pop(self);
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	return self;
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	}
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EXPORT_C CCapabilities* CCapabilities::NewLC(TPtrProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
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	{
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	CCapabilities* self = new (ELeave) CCapabilities;
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	CleanupStack::PushL(self);
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	self->ConstructL(aDataProvider, aBytesRead, aTypeReadBehaviour);
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	return self;
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	}
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EXPORT_C CCapabilities* CCapabilities::NewL(TPtrProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
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	{
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	CCapabilities* self = CCapabilities::NewLC(aDataProvider, aBytesRead, aTypeReadBehaviour);
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	CleanupStack::Pop(self);
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	return self;
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	}
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CCapabilities::CCapabilities()
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	{
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	}
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EXPORT_C CCapabilities::~CCapabilities()
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	{
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	delete iData;
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	}
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void CCapabilities::ConstructL(MSisDataProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
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	{
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	TInt64 fieldOffset = aBytesRead;
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	CField::ConstructL(aDataProvider, EFieldTypeCapabilities, aBytesRead, aTypeReadBehaviour);
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	// Length has to be a multiple of four bytes 
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	if ((Length() >= KMaxTInt / 2)||(Length() < 0) || (I64LOW(Length()) & 0x3))
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		{
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		User::Leave(KErrSISFieldLengthInvalid);
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		}
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	iData= HBufC8::NewMaxL(I64INT(Length()));
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	TPtr8 p(iData->Des());
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	iDataPtr.Set(*iData);
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	CField::CheckedReadL(aDataProvider, p, aBytesRead);
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	CField::SkipUnknownFieldsL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);
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	CField::EnsureAlignedL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);
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	}
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void CCapabilities::ConstructL(TPtrProvider& aDataProvider, TInt64& aBytesRead, TReadTypeBehaviour aTypeReadBehaviour)
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	{
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	TInt64 fieldOffset = aBytesRead;
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	CField::ConstructL(aDataProvider, EFieldTypeCapabilities, aBytesRead, aTypeReadBehaviour);
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	// Length has to be a multiple of four bytes 
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	if ((Length() >= KMaxTInt / 2)||(Length() < 0) || (I64LOW(Length()) & 0x3))
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		{
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		User::Leave(KErrSISFieldLengthInvalid);
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		}
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	iDataPtr.Set(aDataProvider.ReadL(I64LOW(Length())));
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	aBytesRead += I64LOW(Length());
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	CField::SkipUnknownFieldsL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);
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	CField::EnsureAlignedL(aDataProvider, aBytesRead - fieldOffset, aBytesRead, aTypeReadBehaviour);
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	}
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