installationservices/swcomponentregistry/scrhelper/source/scrhelperclient.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 19 Mar 2010 09:33:35 +0200
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/*
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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 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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*
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*/
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#include <e32cmn.h>
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#include "scrhelperclient.h"
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using namespace Usif;
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EXPORT_C RScrHelper::RScrHelper()
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	:	RScsClientBase()
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	{
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	// empty
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	}
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EXPORT_C TInt RScrHelper::Connect()
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	{
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	DEBUG_PRINTF(_L8("Connecting to SCR Helper Server!"));
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	TVersion version = ScrHelperServerVersion();
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	TUidType fullUid = ScrHelperServerImageFullUid();		
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	return RScsClientBase::Connect(KScrHelperServerName(), version, KScrHelperServerImg(), fullUid);
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	}
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EXPORT_C void RScrHelper::Close()
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	{
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	DEBUG_PRINTF(_L8("Closing SCR Helper connection!"));
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	RScsClientBase::Close();
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	}
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EXPORT_C void RScrHelper::RetrieveFileHandlesL(RFile& aScrDatabase, RFile& aScrJournal)
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	{
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	DEBUG_PRINTF(_L8("Retrieving  database and journal file handles from SCR Helper Server!"));
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	// First, retrieve database file handle
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	GetFileHandleL(EGetDatabaseFileHandle, aScrDatabase);
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	// Then, retrieve journal file handle
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	GetFileHandleL(EGetJournalFileHandle, aScrJournal);
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	}
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void RScrHelper::GetFileHandleL(Usif::TScrHelperServerMessages aFunction, RFile& aFile)
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	{
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	// Retrieve the RFs and RFile handles from the server
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	TInt fsh;          	 // File server handle (RFs - session)
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	TPckgBuf<TInt> fh;   // File handle (RFile - subsession)
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	fsh = CallSessionFunction(aFunction, TIpcArgs(&fh));   // pointer to fh in slot 0
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	User::LeaveIfError(fsh);
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	// Adopt the file using the returned handles
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	User::LeaveIfError(aFile.AdoptFromServer(fsh, fh()));
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	}