// Copyright (c) 2003-2009 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:

 // include\mmf\common\mmfipc.h

 // Thin interface layer to use either V1 or V2 IPC calls as appropriate

 // 

 //

 #ifndef __MMF_COMMON_MMFIPC_SERVER_H__

 #define __MMF_COMMON_MMFIPC_SERVER_H__

 #include <e32base.h>

 #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

 #include <mmf/common/mmfipc.h>

 #endif

 // The following declarations are used instead of the native ones on the particular system variant:

 //    RMmfIpcMessage replaces RMessage or RMessage2

 //    CMmfIpcServer replaces CServer or CServer2

 //    CMmfIpcSession replaces CSharableSession or CSession2

 // They are used internally to the MMF component to provide configurability for the particular subsystem

 #ifdef __MMF_USE_IPC_V2__

 //typedef RMessage2 RMmfIpcMessage;

 class CMmfIpcServer; // forward declaration

 /**

  * derive CMmfIpcSession from CSession2 so we can bridge the differences to old CSharableSession

  *

  * @internalTechnology

  */

 class CMmfIpcSession : public CSession2

 	{

 protected:

 	virtual void CreateL(const CMmfIpcServer& aServer);

 	CMmfIpcSession() {}

 	// from CSession2

 	void CreateL();

 	};

 /*

  * derive CMmfIpcServer from CServer2 so we can bridge difference to old CServer

  *

  * @internalTechnology

  */

 class CMmfIpcServer : public CServer2

 	{

 protected:

 	virtual CMmfIpcSession* NewSessionL(const TVersion& aVersion) const=0;

 	CMmfIpcServer(TInt aPriority,TServerType aType=EUnsharableSessions);

 private:

 	// derived from CServer2

 	CSession2* NewSessionL(const TVersion& aVersion,const RMessage2& aMessage) const;

 	};

 #else // __MMF_USE_IPC_V2__

 // otherwise always use V1

 //typedef RMessage RMmfIpcMessage;

 typedef CServer CMmfIpcServer;

 typedef CSharableSession CMmfIpcSession;

 #endif // __MMF_USE_IPC_V2__

 #if defined(__VC32__)

 #pragma warning( disable : 4097 )	// typedef-name used as synonym for class-name 

 #endif

 /**

  * Adapt RMessage calls between IPC variants

  *

  * @internalTechnology

  */

 class MmfMessageUtil 

 	{

 public:

 	static TInt Read(const RMmfIpcMessage& aMessage, TInt aParam, TDes8& aResult);

 	static TInt Write(const RMmfIpcMessage& aMessage, TInt aParam, const TDesC8& aValue);

 	static void ReadL(const RMmfIpcMessage& aMessage, TInt aParam, TDes8& aResult);

 	static void WriteL(const RMmfIpcMessage& aMessage, TInt aParam, const TDesC8& aValue);

 	};

 #include <mmf/common/mmfipcserver.inl>

 #endif // __MMF_COMMON_MMFIPC_SERVER_H__