mtpfws/mtpfw/src/ruidmapper.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:11:40 +0200
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// Copyright (c) 2008-2009 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 "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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//
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#include <barsc.h> 
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#include <barsread.h>
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#include "ruidmapper.h"
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#include <framework.rsg>
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_LIT(KFrameworkFilename, "\\resource\\mtp\\framework.rsc");
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void RUidMapping::ReadFromResourceFileL()
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	{
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	RFs 	Fs;
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	User::LeaveIfError(Fs.Connect());
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	CleanupClosePushL(Fs); 
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	const TDriveName driveName(TDriveUnit(EDriveZ).Name());
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	HBufC* filename = HBufC::NewLC(KMaxDriveName + 
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									KFrameworkFilename().Length() );
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	TPtr pFileName = filename->Des();	
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	pFileName.Append(driveName);
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	pFileName.Append(KFrameworkFilename);	
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	// Reading from resource file  
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	RResourceFile resourceFile;
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	resourceFile.OpenL(Fs, *filename);
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	CleanupClosePushL(resourceFile);  
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	TResourceReader resourceReader;
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	MappingStruct st;
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	HBufC8* buffer = resourceFile.AllocReadLC(R_ELEMENTS_INFO); 
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	resourceReader.SetBuffer(buffer);
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	const TInt numberOfEntries=resourceReader.ReadInt16();
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	for(TInt count =0;count<numberOfEntries ; count++)
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		{
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		st.dpUid=resourceReader.ReadInt32();
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		TInt entries = resourceReader.ReadInt16();
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		for (TInt n = 0 ; n < entries; ++n)
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			{
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			TUint transportId(resourceReader.ReadInt32());
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			st.iTransportUidList.Append(transportId);
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			}
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		InsertToMappingStruct(st);	
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		}
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	CleanupStack::PopAndDestroy(4, &Fs);
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	}
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RUidMapping::RUidMapping() 
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	{
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	}
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void RUidMapping::Close()
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	{
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	iMappingStruct.Close();
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	}
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void RUidMapping::Open()
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	{
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	iMappingStruct.Reset();
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	}
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void RUidMapping::InsertToMappingStruct(MappingStruct& aRef)
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	{
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	iMappingStruct.Append(aRef);
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	}
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TBool RUidMapping::GetSupportedTransport(const TUint& aDPUid,const TUint& aTransportUid)
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	{
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	TBool found = ETrue;
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	TInt count = iMappingStruct.Count();
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	for(TInt i=0 ; i<count ; i++)
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		{
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		if(iMappingStruct[i].dpUid == aDPUid)
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			{
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			if(iMappingStruct[i].iTransportUidList.Find(aTransportUid)<0)
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				{
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				found = EFalse;
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				return found;
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				}
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			}
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		}
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	return found;
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	}
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