williamr@4: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@4: // All rights reserved.
williamr@4: // This component and the accompanying materials are made available
williamr@4: // under the terms of "Eclipse Public License v1.0"
williamr@4: // which accompanies this distribution, and is available
williamr@4: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@4: //
williamr@4: // Initial Contributors:
williamr@4: // Nokia Corporation - initial contribution.
williamr@4: //
williamr@4: // Contributors:
williamr@4: //
williamr@4: // Description:
williamr@4: // include\mmf\common\mmfipc.h
williamr@4: // Thin interface layer to use either V1 or V2 IPC calls as appropriate
williamr@4: // 
williamr@4: //
williamr@4: 
williamr@4: #ifndef __MMF_COMMON_MMFIPC_SERVER_H__
williamr@4: #define __MMF_COMMON_MMFIPC_SERVER_H__
williamr@4: 
williamr@4: #include <e32base.h>
williamr@4: #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
williamr@4: #include <mmf/common/mmfipc.h>
williamr@4: #endif
williamr@4: 
williamr@4: // The following declarations are used instead of the native ones on the particular system variant:
williamr@4: //    RMmfIpcMessage replaces RMessage or RMessage2
williamr@4: //    CMmfIpcServer replaces CServer or CServer2
williamr@4: //    CMmfIpcSession replaces CSharableSession or CSession2
williamr@4: // They are used internally to the MMF component to provide configurability for the particular subsystem
williamr@4: 
williamr@4: #ifdef __MMF_USE_IPC_V2__
williamr@4: 
williamr@4: //typedef RMessage2 RMmfIpcMessage;
williamr@4: 
williamr@4: class CMmfIpcServer; // forward declaration
williamr@4: 
williamr@4: /**
williamr@4:  * derive CMmfIpcSession from CSession2 so we can bridge the differences to old CSharableSession
williamr@4:  *
williamr@4:  * @internalTechnology
williamr@4:  */
williamr@4:  
williamr@4: class CMmfIpcSession : public CSession2
williamr@4: 	{
williamr@4: protected:
williamr@4: 	virtual void CreateL(const CMmfIpcServer& aServer);
williamr@4: 	CMmfIpcSession() {}
williamr@4: 	// from CSession2
williamr@4: 	void CreateL();
williamr@4: 	};
williamr@4: 
williamr@4: /*
williamr@4:  * derive CMmfIpcServer from CServer2 so we can bridge difference to old CServer
williamr@4:  *
williamr@4:  * @internalTechnology
williamr@4:  */
williamr@4:  
williamr@4: class CMmfIpcServer : public CServer2
williamr@4: 	{
williamr@4: protected:
williamr@4: 	virtual CMmfIpcSession* NewSessionL(const TVersion& aVersion) const=0;
williamr@4: 	CMmfIpcServer(TInt aPriority,TServerType aType=EUnsharableSessions);
williamr@4: private:
williamr@4: 	// derived from CServer2
williamr@4: 	CSession2* NewSessionL(const TVersion& aVersion,const RMessage2& aMessage) const;
williamr@4: 	};
williamr@4: 
williamr@4: #else // __MMF_USE_IPC_V2__
williamr@4: 
williamr@4: // otherwise always use V1
williamr@4: //typedef RMessage RMmfIpcMessage;
williamr@4: typedef CServer CMmfIpcServer;
williamr@4: typedef CSharableSession CMmfIpcSession;
williamr@4: 
williamr@4: #endif // __MMF_USE_IPC_V2__
williamr@4: 
williamr@4: #if defined(__VC32__)
williamr@4: #pragma warning( disable : 4097 )	// typedef-name used as synonym for class-name 
williamr@4: #endif
williamr@4: 
williamr@4: 
williamr@4: /**
williamr@4:  * Adapt RMessage calls between IPC variants
williamr@4:  *
williamr@4:  * @internalTechnology
williamr@4:  */
williamr@4: 
williamr@4: class MmfMessageUtil 
williamr@4: 	{
williamr@4: public:
williamr@4: 	static TInt Read(const RMmfIpcMessage& aMessage, TInt aParam, TDes8& aResult);
williamr@4: 	static TInt Write(const RMmfIpcMessage& aMessage, TInt aParam, const TDesC8& aValue);
williamr@4: 	static void ReadL(const RMmfIpcMessage& aMessage, TInt aParam, TDes8& aResult);
williamr@4: 	static void WriteL(const RMmfIpcMessage& aMessage, TInt aParam, const TDesC8& aValue);
williamr@4: 	};
williamr@4: 	
williamr@4: #include <mmf/common/mmfipcserver.inl>
williamr@4: 
williamr@4: #endif // __MMF_COMMON_MMFIPC_SERVER_H__