locationmgmt/agpslocationmgr/inc/lbsnetworkgatewayhandler.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:50:39 +0200
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// Copyright (c) 2006-2009 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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// Definition of assistance data handler sub-component of agps manager
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// 
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//
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/**
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 @file
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 @internalTechnology
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*/
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#ifndef LBSNETWORKREQUESTHANDLER_H
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#define LBSNETWORKREQUESTHANDLER_H
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#include <e32base.h>
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#include "lbscommoninternaldatatypes.h"
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#include <lbs/lbsnetcommon.h>
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#include "lbsnetinternalapi.h"
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#include "LbsInternalInterface.h"
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#include "lbsassistancedatacacheapi.h"
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#include "lbsnetinternalmsgfifo.h"
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class MNetworkGatewayHandlerObserver
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    {
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public:
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    virtual void OnAssistanceDataResponse(TInt aError, TLbsAsistanceDataGroup aMask) = 0;
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    virtual void OnSessionComplete(TInt aReason, const TLbsNetSessionIdInt& aSessionId) = 0;
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    };
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class CNetworkGatewayHandler : public CActive, private MLbsNetChannelObserver
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	{
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public:
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	static CNetworkGatewayHandler* NewL(MNetworkGatewayHandlerObserver* aObserver);
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	~CNetworkGatewayHandler();
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	TInt GetAssistanceDataItem(TLbsAssistanceDataItem aItem,RDataReaderRootBase& aDataRoot,	TTime& aTimeStamp);
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	TInt GetAssistanceDataItemTimeStamp(TLbsAssistanceDataItem aItem, TTime& aTimeStamp);
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	void SendAssistanceDataRequest(TLbsAsistanceDataGroup aDataItemMask);
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	void SendSelfLocationRequest(const TLbsNetSessionIdInt& aSessionId, const TLbsNetPosRequestOptionsAssistanceInt& aOptions);
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	void SendSelfLocationCancel(const TLbsNetSessionIdInt& aSessionId, TInt aReason);
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	void SendSystemStatusAdvice(TBool aTracking);
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private:
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	CNetworkGatewayHandler(MNetworkGatewayHandlerObserver* aObserver); 
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	void ConstructL();
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	//from MLbsNetChannelObserver
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	void ProcessNetChannelMessage(RLbsNetChannel::TLbsNetChannelId aChannelId, const TLbsNetInternalMsgBase& aMessage);
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	//from CActive
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	void RunL();
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	void DoCancel();
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	TInt RunError(TInt aError);
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	// Helpers
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	void SendOrQueueMessage(TLbsNetInternalMsgBase& aMsg);
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	void QueueMessage(TLbsNetInternalMsgBase& aMsg);
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private:
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	MNetworkGatewayHandlerObserver* iObserver;
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	RAssistanceDataCache	 		 iAssistanceDataCache;
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	RLbsNetChannel					 iNGChannel;
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	RLbsNetMsgFifo					 iQ;
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	};
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#endif // LBSNETWORKREQUESTHANDLER_H
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