// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "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:

// This file provides the implementation of the class that manages

// conflict control of SUPL Protocol Module.

// 

//

/**

 @file

 @internalTechnology

 @deprecated

*/

#include <centralrepository.h>

#include "suplconflictmanager.h"

#include "supldevloggermacros.h"

/** Static constructor.

@return A new instance of the CSuplConflictManager class

*/  

CSuplConflictManager* CSuplConflictManager::NewL()

	{

	SUPLLOG(ELogP1, "CSuplConflictManager::NewL() Begin\n");

	CSuplConflictManager* self = new (ELeave) CSuplConflictManager();

	CleanupStack::PushL(self);

	self->ConstructL();

	SUPLLOG(ELogP1, "CSuplConflictManager::NewL() End\n");

	CleanupStack::Pop(self);

	return self;

	}

/** Standard constructor.

*/  

CSuplConflictManager::CSuplConflictManager()

	{

	SUPLLOG(ELogP1, "CSuplConflictManager::CSuplConflictManager() Begin\n");

	SUPLLOG(ELogP1, "CSuplConflictManager::CSuplConflictManager() End\n");

	}

/** Standard destructor.

*/  

CSuplConflictManager::~CSuplConflictManager()

	{

	SUPLLOG(ELogP1, "CSuplConflictManager::~CSuplConflictManager() Begin\n");

	iDecisionTable.Close();

	SUPLLOG(ELogP1, "CSuplConflictManager::~CSuplConflictManager() End\n");

	}

/** Private second-stage constructor.

*/  

void CSuplConflictManager::ConstructL()

	{

	SUPLLOG(ELogP1, "CSuplConflictManager::ConstructL() Begin\n");

	SUPLLOG(ELogP1, "CSuplConflictManager::ConstructL() End\n");

	}

/** Get conflict decision.

Generates a conflict decision based on the nature of a current operation,

and the nature of a new operation.

The conflict rules are as follow:

- Only procedure, either MO-LR or MT-LR is allowed to be active at a time.

- A new SUPL INIT is ignored and discarded if either MO-LR or MT-LR are in progress.

- SelfLocateRequest when MT-LR is in progress terminates MT-LR and starts MO-LR.

- SelfLocateRequest(sessId2) when MO-LR (sessId1) is in progress, the second request is rejected

@param aActiveServiceMask Services currently in progress in the Protocol Module (MoLr, MtLr,...)

@param aNewOperation The new service for which a decision is required

@param aNewOperationOptions Options about aNewOperation that affect the conflict decision (mode, new client,...)

@param aIsAssistanceDataNeeded Boolean that is 'true' when the new service needs assistance data from the network.

@return TConflictDecision The conflict decision:

	EConflictNone				- This implies there is no current operation

								  and the new operation is simply started

	EConflictRejectNew			- The new operation is rejected and any

								  current operation proceeds unaffected

	EConflictCancelCurrent		- The current operation is cancelled and

								  the new operation is started

	EConflictAdoptNewSessionId	- The current self location operation proceeds

								  but it adopts the session Id of the new operation.

*/  

CSuplConflictManager::TConflictResult CSuplConflictManager::ConflictDecision(const MLbsNetworkProtocolObserver::TLbsNetProtocolServiceMask& aActiveServiceMask,

									 const MLbsNetworkProtocolObserver::TLbsNetProtocolService& aNewOperation,

									 const TLbsNetPosRequestOptionsBase& /*aNewOperationOptions*/) const

	{

	SUPLLOG(ELogP1, "CSuplConflictManager::ConflictDecision() Begin\n");

	TConflictResult result = EConflictNone;

	switch (aNewOperation)

		{

		case MLbsNetworkProtocolObserver::EServiceMobileTerminated:

			// reject new MTLR request if any other procedure is in progress

			if (MLbsNetworkProtocolObserver::EServiceNone != aActiveServiceMask)

				result =  EConflictRejectNew;

			break;

		case MLbsNetworkProtocolObserver::EServiceNetworkLocation:

		case MLbsNetworkProtocolObserver::EServiceSelfLocation:

			if (aNewOperation & aActiveServiceMask)

				{

				// Reject the new session.

				result = EConflictRejectNew;

				}

				else if (MLbsNetworkProtocolObserver::EServiceMobileTerminated & aActiveServiceMask)

				{

				// terminate the MTLR before starting the new procedure

				result = EConflictCancelCurrent;

				}

		}

	SUPLLOG(ELogP1, "CSuplConflictManager::ConflictDecision() End\n");

	return result;

	}