sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // mmrcserverpolicymanager.cpp
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "mmrcserverrulemanager.h"
sl@0: #include "mmrcserversession.h"
sl@0: #include "mmrcservercontroller.h"
sl@0: #include "mmrcerrorcodes.h"
sl@0: #include "mlogicalchain.h"
sl@0: #include <a3f/a3f_trace_utils.h>
sl@0: 
sl@0: 
sl@0: /**
sl@0:  * By default Symbian 2nd phase constructor is private.
sl@0:  * @param CMMRCServerController& A reference on the MMRC Server controller
sl@0:  */
sl@0: CMMRCServerRuleManager::CMMRCServerRuleManager(CMMRCServerController& aServerController)
sl@0: :iMMRCServerController(aServerController)
sl@0: 	{
sl@0: 	TRACE_CREATE();
sl@0: 	DP_CONTEXT(----> CMMRCServerRuleManager::CMMRCServerRuleManager *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * Destructor
sl@0:  */
sl@0: CMMRCServerRuleManager::~CMMRCServerRuleManager( )
sl@0: 	{
sl@0: 	DP_CONTEXT(----> CMMRCServerRuleManager::~CMMRCServerRuleManager *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * Constructs, and returns a pointer to, a new CMMRCServerRuleManager object.
sl@0:  * Leaves on failure.
sl@0:  * @param CMMRCServerController& A reference on the MMRC Server controller
sl@0:  * @return CMMRCServerRuleManager* A pointer to newly created utlitly object.
sl@0:  */
sl@0: CMMRCServerRuleManager* CMMRCServerRuleManager::NewL(CMMRCServerController& aServerController)
sl@0: 	{
sl@0: 	DP_STATIC_CONTEXT(----> CMMRCServerRuleManager::NewL *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	
sl@0: 	CMMRCServerRuleManager* self = NewLC(aServerController);
sl@0: 	CleanupStack::Pop ( self );
sl@0: 
sl@0: 	DP0_RET(self, "self=0x%x");
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * Constructs, leaves object on the cleanup stack, and returns a pointer
sl@0:  * to, a new CMMRCServerRuleManager object.
sl@0:  * Leaves on failure.
sl@0:  * @param CMMRCServerController& A reference on the MMRC Server controller
sl@0:  * @return CMMRCServerRuleManager* A pointer to newly created utlitly object.
sl@0:  */
sl@0: CMMRCServerRuleManager* CMMRCServerRuleManager::NewLC(CMMRCServerController& aServerController)
sl@0: 	{
sl@0: 	DP_STATIC_CONTEXT(----> CMMRCServerRuleManager::NewLC *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	
sl@0: 	CMMRCServerRuleManager* self = new(ELeave) CMMRCServerRuleManager(aServerController);
sl@0: 	CleanupStack::PushL (self );
sl@0: 	self->ConstructL (  );
sl@0: 
sl@0: 	DP0_RET(self, "self=0x%x");
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  	CMMRCServerRuleManager::ConstructL
sl@0:  	Symbian 2nd phase constructor can leave.
sl@0:  */
sl@0: void CMMRCServerRuleManager::ConstructL()
sl@0: 	{
sl@0: 	DP_CONTEXT(----> CMMRCServerRuleManager::ConstructL *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	
sl@0: 	DP_OUT();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * Deduce the rule on the message according to the previous and current state
sl@0:  * Return EProcessOnIdle if no rule has been found.
sl@0:  * Leaves on failure.
sl@0:  * @param TAudioState aAudioStateAllocatedResource
sl@0:  * @param TAudioState aAudioStateRequiringProcess
sl@0:  * @return TMMRCRule rule
sl@0:  */
sl@0: TMMRCRule CMMRCServerRuleManager::DecisionRule(TAudioState aAudioStateAllocatedResource, TAudioState aAudioStateRequiringProcess )
sl@0: 	{
sl@0: 	DP_CONTEXT(RMMRCClient::Open *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	
sl@0: 	TMMRCRule rule = EProcessOnIdle;
sl@0: 	switch ( aAudioStateAllocatedResource )
sl@0: 		{
sl@0: 		//
sl@0: 		case EUninitialized:
sl@0: 		case EInitialized:
sl@0: 		case EDead:
sl@0: 			rule = EAlwaysProcess;
sl@0: 		break;
sl@0: 		
sl@0: 		//
sl@0: 		case EIdle:
sl@0: 		case EPrimed:
sl@0: 		case EActive:
sl@0: 			{
sl@0: 			if ( aAudioStateRequiringProcess == EUninitialized || aAudioStateRequiringProcess == EInitialized)
sl@0: 				{
sl@0: 				rule = EAlwaysProcess;
sl@0: 				}
sl@0: 			}
sl@0: 		break;
sl@0: 		
sl@0: 		default:
sl@0: 			__ASSERT_DEBUG(EFalse, User::Panic(KMMRCErrorNameUnkwnonAudioState, EMMRCErrorUnkwnonAudioState));
sl@0: 		break;
sl@0: 		}
sl@0: 	
sl@0: 	DP0_RET(rule, "rule=%d");
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * Deduce the rule on the message according to the previous and current state
sl@0:  * Return EStop if no rule has been found.
sl@0:  * @param TAudioState aAudioStateAllocatedResource
sl@0:  * @param TAudioState aAudioStateRequiringProcess
sl@0:  * @return TMMRCRule rule
sl@0:  */
sl@0: TReason CMMRCServerRuleManager::ActionReason(TAudioState aAudioStateLastCommited, TAudioState aAudioStateRequested )
sl@0: 	{
sl@0: 	DP_CONTEXT(----> CMMRCServerRuleManager::ActionReason *CD1*, CtxDevSound, DPLOCAL);
sl@0: 	DP_IN();
sl@0: 	
sl@0: 	TReason reason;
sl@0: 	switch (aAudioStateRequested )
sl@0: 		{
sl@0: 		case EUninitialized:
sl@0: 		if ( aAudioStateLastCommited == EInitialized )
sl@0: 			{
sl@0: 			reason = EUninitialize;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			reason = EUninitialize ;
sl@0: 			}
sl@0: 		break;
sl@0: 		
sl@0: 		case EInitialized:
sl@0: 			if ( aAudioStateLastCommited == EUninitialized )
sl@0: 				{
sl@0: 				reason = EInitialize;
sl@0: 				}
sl@0: 			else if ( aAudioStateLastCommited == EIdle )
sl@0: 				{
sl@0: 				reason = EUnload;
sl@0: 				}
sl@0: 			else if ( aAudioStateLastCommited == EPrimed )
sl@0: 				{
sl@0: 				reason = EPrimeReason;
sl@0: 				}
sl@0: 			else if ( aAudioStateLastCommited == EActive )
sl@0: 				{
sl@0: 				reason = EStop;
sl@0: 				}
sl@0: 			else 
sl@0: 				{
sl@0: 				reason = EInitialize ;
sl@0: 				}
sl@0: 		break;
sl@0: 		
sl@0: 		case EIdle:
sl@0: 			if ( aAudioStateLastCommited == EUninitialized )
sl@0: 				{
sl@0: 				reason = ELoad;
sl@0: 				}
sl@0: 			else if ( aAudioStateLastCommited == EInitialized )
sl@0: 				{
sl@0: 				reason = ELoad;
sl@0: 				}
sl@0: 			else if ( aAudioStateLastCommited == EPrimed )
sl@0: 				{
sl@0: 				reason = EStop;
sl@0: 				}
sl@0: 			else if ( aAudioStateLastCommited == EActive )
sl@0: 				{
sl@0: 				reason = EStop;
sl@0: 				}
sl@0: 			else 
sl@0: 				{
sl@0: 				reason = ELoad;
sl@0: 				}
sl@0: 		break;
sl@0: 		
sl@0: 		case EPrimed:
sl@0: 			if ( aAudioStateLastCommited == EIdle )
sl@0: 				{
sl@0: 				reason = EPrimeReason;
sl@0: 				}
sl@0: 			else if ( aAudioStateLastCommited == EActive )
sl@0: 				{
sl@0: 				reason = EPrimeReason;
sl@0: 				}
sl@0: 			else 
sl@0: 				{
sl@0: 				reason = EPrimeReason;
sl@0: 				}
sl@0: 		break;
sl@0: 		
sl@0: 		case EActive:
sl@0: 			if ( aAudioStateLastCommited == EPrimed )
sl@0: 				{
sl@0: 				reason = EActivate;
sl@0: 				}
sl@0: 			else if ( aAudioStateLastCommited == EIdle )
sl@0: 				{
sl@0: 				reason = EActivate;
sl@0: 				}
sl@0: 			else 
sl@0: 				{
sl@0: 				reason = EActivate;
sl@0: 				}
sl@0: 		break;
sl@0: 		
sl@0: 		case EDead:
sl@0: 		default:
sl@0: 			reason = EStop;
sl@0: 		break;
sl@0: 		}
sl@0: 	
sl@0: 	DP0_RET(reason, "reason=%d");
sl@0: 	}
sl@0: 
sl@0: //EOF