sl@0: // Copyright (c) 2008-2009 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: // mmcamerapolicymanager.h
sl@0: // 
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalTechnology
sl@0: */
sl@0: 
sl@0: #ifndef MMCAMERASERVERPOLICYMANAGER_H
sl@0: #define MMCAMERASERVERPOLICYMANAGER_H
sl@0: 
sl@0: #include <e32std.h>
sl@0: #include <e32hashtab.h>
sl@0: #include <e32cmn.h>
sl@0: 
sl@0: class CMMCameraServerSession;
sl@0: 
sl@0: typedef TDblQue<CMMCameraServerSession> TCamSessionQue;
sl@0: typedef TDblQueIter<CMMCameraServerSession> TCamSessionIter;
sl@0: 
sl@0: 
sl@0: // ECAM Server Policies
sl@0: static _LIT_SECURITY_POLICY_C1 (KMMCameraServerPolicyUserEnvironment, ECapabilityUserEnvironment);
sl@0: static _LIT_SECURITY_POLICY_C1 (KMMCameraServerPolicyMultimediaDD, ECapabilityMultimediaDD);
sl@0: 
sl@0: /**
sl@0:  * Manages policy for the ECAM server.
sl@0:  * 
sl@0:  * Handles both Platsec capability checks and Reserve/Release of camera devices.
sl@0:  */  
sl@0: class CMMCameraServerPolicyManager : public CBase
sl@0: 	{
sl@0: public:
sl@0: 	static CMMCameraServerPolicyManager* NewL();
sl@0: 
sl@0: 	~CMMCameraServerPolicyManager();
sl@0: 
sl@0: 	void ReleaseClient(CMMCameraServerSession* aSession);
sl@0: 	TBool ReserveClient(CMMCameraServerSession* aSession);
sl@0: 
sl@0: 	void OnConnectL (const RMessage2& aMessage);
sl@0: 	void ServiceHandlerL(const RMessage2& aMessage);
sl@0: 
sl@0: private:
sl@0: 	CMMCameraServerPolicyManager();   // Named Constructor Idiom concept used
sl@0: 
sl@0: 	void ConstructL();
sl@0: 	CMMCameraServerSession* FindFirstInQue(TInt aIndex);
sl@0: 	CMMCameraServerSession* FindLastInQue(TInt aIndex);
sl@0: 	void ReserveUpdate(CMMCameraServerSession* aSession);
sl@0: 	TBool CheckControlOvertaking(CMMCameraServerSession* aSession); // informs whether the new client can overtake camera control from the previously reserved ones 
sl@0: 
sl@0: private:
sl@0: 	TCamSessionQue iReservedSessionQ;
sl@0: 	TCamSessionIter iIter;
sl@0: 
sl@0: 	TInt iCameraIndex;
sl@0:     TInt iHandle;
sl@0:     TInt iPriority;
sl@0: 	TBool iMMCapability;   
sl@0: 	};
sl@0: 
sl@0: #endif // MMCAMERASERVERPOLICYMANAGER_H