// Copyright (c) 2007-2009 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:

 // mmrcserverpolicymanager.cpp

 // 

 //

 #include "mmrcserverrulemanager.h"

 #include "mmrcserversession.h"

 #include "mmrcservercontroller.h"

 #include "mmrcerrorcodes.h"

 #include "mlogicalchain.h"

 #include <a3f/a3f_trace_utils.h>

 /**

  * By default Symbian 2nd phase constructor is private.

  * @param CMMRCServerController& A reference on the MMRC Server controller

  */

 CMMRCServerRuleManager::CMMRCServerRuleManager(CMMRCServerController& aServerController)

 :iMMRCServerController(aServerController)

 	{

 	TRACE_CREATE();

 	DP_CONTEXT(----> CMMRCServerRuleManager::CMMRCServerRuleManager *CD1*, CtxDevSound, DPLOCAL);

 	DP_IN();

 	DP_OUT();

 	}

 /**

  * Destructor

  */

 CMMRCServerRuleManager::~CMMRCServerRuleManager( )

 	{

 	DP_CONTEXT(----> CMMRCServerRuleManager::~CMMRCServerRuleManager *CD1*, CtxDevSound, DPLOCAL);

 	DP_IN();

 	DP_OUT();

 	}

 /**

  * Constructs, and returns a pointer to, a new CMMRCServerRuleManager object.

  * Leaves on failure.

  * @param CMMRCServerController& A reference on the MMRC Server controller

  * @return CMMRCServerRuleManager* A pointer to newly created utlitly object.

  */

 CMMRCServerRuleManager* CMMRCServerRuleManager::NewL(CMMRCServerController& aServerController)

 	{

 	DP_STATIC_CONTEXT(----> CMMRCServerRuleManager::NewL *CD1*, CtxDevSound, DPLOCAL);

 	DP_IN();

 	CMMRCServerRuleManager* self = NewLC(aServerController);

 	CleanupStack::Pop ( self );

 	DP0_RET(self, "self=0x%x");

 	}

 /**

  * Constructs, leaves object on the cleanup stack, and returns a pointer

  * to, a new CMMRCServerRuleManager object.

  * Leaves on failure.

  * @param CMMRCServerController& A reference on the MMRC Server controller

  * @return CMMRCServerRuleManager* A pointer to newly created utlitly object.

  */

 CMMRCServerRuleManager* CMMRCServerRuleManager::NewLC(CMMRCServerController& aServerController)

 	{

 	DP_STATIC_CONTEXT(----> CMMRCServerRuleManager::NewLC *CD1*, CtxDevSound, DPLOCAL);

 	DP_IN();

 	CMMRCServerRuleManager* self = new(ELeave) CMMRCServerRuleManager(aServerController);

 	CleanupStack::PushL (self );

 	self->ConstructL (  );

 	DP0_RET(self, "self=0x%x");

 	}

 /**

  	CMMRCServerRuleManager::ConstructL

  	Symbian 2nd phase constructor can leave.

  */

 void CMMRCServerRuleManager::ConstructL()

 	{

 	DP_CONTEXT(----> CMMRCServerRuleManager::ConstructL *CD1*, CtxDevSound, DPLOCAL);

 	DP_IN();

 	DP_OUT();

 	}

 /**

  * Deduce the rule on the message according to the previous and current state

  * Return EProcessOnIdle if no rule has been found.

  * Leaves on failure.

  * @param TAudioState aAudioStateAllocatedResource

  * @param TAudioState aAudioStateRequiringProcess

  * @return TMMRCRule rule

  */

 TMMRCRule CMMRCServerRuleManager::DecisionRule(TAudioState aAudioStateAllocatedResource, TAudioState aAudioStateRequiringProcess )

 	{

 	DP_CONTEXT(RMMRCClient::Open *CD1*, CtxDevSound, DPLOCAL);

 	DP_IN();

 	TMMRCRule rule = EProcessOnIdle;

 	switch ( aAudioStateAllocatedResource )

 		{

 		//

 		case EUninitialized:

 		case EInitialized:

 		case EDead:

 			rule = EAlwaysProcess;

 		break;

 		//

 		case EIdle:

 		case EPrimed:

 		case EActive:

 			{

 			if ( aAudioStateRequiringProcess == EUninitialized || aAudioStateRequiringProcess == EInitialized)

 				{

 				rule = EAlwaysProcess;

 				}

 			}

 		break;

 		default:

 			__ASSERT_DEBUG(EFalse, User::Panic(KMMRCErrorNameUnkwnonAudioState, EMMRCErrorUnkwnonAudioState));

 		break;

 		}

 	DP0_RET(rule, "rule=%d");

 	}

 /**

  * Deduce the rule on the message according to the previous and current state

  * Return EStop if no rule has been found.

  * @param TAudioState aAudioStateAllocatedResource

  * @param TAudioState aAudioStateRequiringProcess

  * @return TMMRCRule rule

  */

 TReason CMMRCServerRuleManager::ActionReason(TAudioState aAudioStateLastCommited, TAudioState aAudioStateRequested )

 	{

 	DP_CONTEXT(----> CMMRCServerRuleManager::ActionReason *CD1*, CtxDevSound, DPLOCAL);

 	DP_IN();

 	TReason reason;

 	switch (aAudioStateRequested )

 		{

 		case EUninitialized:

 		if ( aAudioStateLastCommited == EInitialized )

 			{

 			reason = EUninitialize;

 			}

 		else

 			{

 			reason = EUninitialize ;

 			}

 		break;

 		case EInitialized:

 			if ( aAudioStateLastCommited == EUninitialized )

 				{

 				reason = EInitialize;

 				}

 			else if ( aAudioStateLastCommited == EIdle )

 				{

 				reason = EUnload;

 				}

 			else if ( aAudioStateLastCommited == EPrimed )

 				{

 				reason = EPrimeReason;

 				}

 			else if ( aAudioStateLastCommited == EActive )

 				{

 				reason = EStop;

 				}

 			else 

 				{

 				reason = EInitialize ;

 				}

 		break;

 		case EIdle:

 			if ( aAudioStateLastCommited == EUninitialized )

 				{

 				reason = ELoad;

 				}

 			else if ( aAudioStateLastCommited == EInitialized )

 				{

 				reason = ELoad;

 				}

 			else if ( aAudioStateLastCommited == EPrimed )

 				{

 				reason = EStop;

 				}

 			else if ( aAudioStateLastCommited == EActive )

 				{

 				reason = EStop;

 				}

 			else 

 				{

 				reason = ELoad;

 				}

 		break;

 		case EPrimed:

 			if ( aAudioStateLastCommited == EIdle )

 				{

 				reason = EPrimeReason;

 				}

 			else if ( aAudioStateLastCommited == EActive )

 				{

 				reason = EPrimeReason;

 				}

 			else 

 				{

 				reason = EPrimeReason;

 				}

 		break;

 		case EActive:

 			if ( aAudioStateLastCommited == EPrimed )

 				{

 				reason = EActivate;

 				}

 			else if ( aAudioStateLastCommited == EIdle )

 				{

 				reason = EActivate;

 				}

 			else 

 				{

 				reason = EActivate;

 				}

 		break;

 		case EDead:

 		default:

 			reason = EStop;

 		break;

 		}

 	DP0_RET(reason, "reason=%d");

 	}

 //EOF