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// Copyright (c) 2007-2009 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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//
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#ifndef MMRCSERVERCONTROLLER_H__
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#define MMRCSERVERCONTROLLER_H__
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#include <e32std.h>
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#include <e32base.h>
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#include <a3f/a3fbase.h>
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#include "mmrcclientserver.h"
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class CMMRCServerInfo;
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class MMMRCServerInfoState;
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class CMMRCServerSession;
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class CMMRCServerRuleManager;
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class CARNNotificationObject;
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/**
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Panic category and codes that MMRCServerController raises on the client
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*/
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_LIT(KMMRCServerControllerPanicCategory, "MMRCServerController");
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enum TMMRCServerControllerPanicCodes
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{
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EProcessNextRequestLeft = 1,
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EPushPauseContextLeft,
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EPushAllocatedResourceContextFailed
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};
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/**
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@internalComponent
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This class implements the MMRC Server Controller.
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The main purpose of this class is to control the different transactions
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*/
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NONSHARABLE_CLASS( CMMRCServerController ): public CBase
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{
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public:
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/**
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* Constructs, and returns a pointer to, a new CMMRCServerController object.
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* Leaves on failure.
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* @return CMMRCServerController* A pointer to newly created utlitly object.
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*/
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static CMMRCServerController* NewL();
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/**
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* Constructs, leaves object on the cleanup stack, and returns a pointer
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* to, a new CMMRCServerController object.
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* Leaves on failure.
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* @return CMMRCServerController* A pointer to newly created utlitly object.
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*/
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static CMMRCServerController* NewLC();
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/**
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* Destructor.
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*/
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~CMMRCServerController();
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public:
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/**
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* Process the request pointer by a specific session
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* @param CMMRCServerSession& aServerSession
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* @return KerrNone in case of success of the process
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*/
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TInt EnqueueRequestL(CMMRCServerSession& aServerSession );
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/**
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* Callback from the adaptation
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* @param MLogicalChain* aOldChain
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* @param MLogicalChain* aNewChain
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* @param TMMRCAdaptationToServerRequestResults aResult
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*/
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void AdaptationRequestAcknowledgment(CMMRCServerSession& aServerSessionAllocatedResource, TMMRCAdaptationToServerRequestResults aResult, TInt aError);
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/*
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*
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*/
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void CloseSessionByContextId(TInt32 aContextId);
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/*
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*
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*/
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void ClientAcknowledgment(CMMRCServerSession& aServerSession);
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/*
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*
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*/
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void ServerState(TMMRCServerState& aServerState, TUint64& aContextId) const;
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/**
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*
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* @param CMMRCServerSession& aServerSession
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* @return KerrNone in case of success of the process
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*/
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TInt EnqueueRequestForAPRL(CMMRCServerSession& aServerSession );
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/**
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*
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* @param CMMRCServerSession& aServerSession
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* @return KerrNone in case of success of the process
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*/
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TInt RemoveRequestForAPR(CMMRCServerSession& aServerSession );
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/**
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*
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* @return KerrNone in case of success of the process
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*/
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TInt WillResumePlay();
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private:
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/**
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* Process the first request with the highest priority from the FIFO queue
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* @return KerrNone in case of success of the process
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*/
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TInt ProcessNextRequestL();
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/**
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* Send a resource request to the adaptation
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* @param CMMRCServerSession& aServerSession
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* @return KerrNone in case of success of the process
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*/
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TInt SendResourceRequest( CMMRCServerSession& aServerSession );
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/**
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* Send a preemption request to the adaptation
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* @param CMMRCServerSession& aServerSession
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* @return KerrNone in case of success of the process
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*/
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TInt SendPreemptionRequest( CMMRCServerSession& aServerSession );
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/**
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* Pop the decision rule on the base of the current in-process request and a new committed request
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* @param TAudioState aAudioStateAllocatedResource
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* @param TAudioState aAudioStateRequiringProcess
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* @return TMMRCRule
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*/
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TMMRCRule DecisionRule(TAudioState aAudioStateAllocatedResource, TAudioState aAudioStateRequiringProcess);
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/**
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* Pop the action reason on the base of the last committed request and the current one
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* @param TAudioState aAudioStateLastCommitted
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* @param TAudioState aAudioStateRequested
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* @return TReason
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*/
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TReason ActionReason(TAudioState aAudioStateLastCommitted, TAudioState aAudioStateRequested);
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/**
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* Notify all the paused client that a resource has been unallocated
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*/
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void NotifyPausedClientsResourceUnallocated();
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/*
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*
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*/
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void Panic(TMMRCServerControllerPanicCodes aCode);
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private:
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/**
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* By default Symbian 2nd phase constructor is private.
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*/
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CMMRCServerController();
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/**
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* By default Symbian 2nd phase constructor is private.
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*/
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void ConstructL();
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private:
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//owned
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CMMRCServerInfo* iMMRCServerInfo;
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CMMRCServerRuleManager* iMMRCServerRuleManager;
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CARNNotificationObject* iARNNotificationObject;
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};
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#endif //__MMRCSERVERCONTROLLER_H__
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