--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/epoc32/include/mmf/common/mmfipc.h	Tue Mar 16 16:12:26 2010 +0000
@@ -0,0 +1,149 @@
+// 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 the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+// which accompanies this distribution, and is available
+// at the URL "http://www.symbianfoundation.org/legal/licencesv10.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_H__
+#define __MMF_COMMON_MMFIPC_H__
+
+#include <e32base.h>
+
+#ifdef __IPC_V2_PRESENT__
+// if V2 code present than use it
+#define __MMF_USE_IPC_V2__
+#endif //__IPC_V2_PRESENT__
+
+
+// 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
+
+
+/**
+ * RSessionBase adaptor layer 
+ * Provides typechecking for client-side calls. 
+ *
+ * @internalTechnology
+ */
+
+class RMmfSessionBase : public RSessionBase
+	{
+protected:
+	// no parameter variants
+	TInt SendReceive(TInt aFunction) const;
+	void SendReceive(TInt aFunction, TRequestStatus& aStatus) const;
+	// send number of parameters - no "result" parameter, just error/status 
+	TInt SendReceive(TInt aFunction, TInt aParam0) const;
+	TInt SendReceive(TInt aFunction, TInt aParam0, TInt aParam1) const;
+	void SendReceive(TInt aFunction, TInt aParam0, TRequestStatus& aStatus) const;
+	void SendReceive(TInt aFunction, TInt aParam0, TInt aParam1, TRequestStatus& aStatus) const;
+	TInt SendReceive(TInt aFunction, const TDesC8& aParam0) const;
+	TInt SendReceive(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1) const;
+	TInt SendReceive(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1, const TDesC8& aParam2) const;
+	void SendReceive(TInt aFunction, const TDesC8& aParam0, TRequestStatus& aStatus) const;
+	void SendReceive(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1, TRequestStatus& aStatus) const;
+	void SendReceive(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1, const TDesC8& aParam2, TRequestStatus& aStatus) const;
+	// "last" parameter is result, so is passed as TDes8&
+	TInt SendReceiveResult(TInt aFunction, TDes8& aResult) const;
+	TInt SendReceiveResult(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1, TDes8& aResult) const;
+	TInt SendReceiveResult(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1, const TDesC8& aParam2, TDes8& aResult) const;
+	void SendReceiveResult(TInt aFunction, TDes8& aResult, TRequestStatus& aStatus) const;
+	void SendReceiveResult(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1, TDes8& aResult, TRequestStatus& aStatus) const;
+	void SendReceiveResult(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1, const TDesC8& aParam2, TDes8& aResult, TRequestStatus& aStatus) const;
+
+	//TDesC versions
+	void SendReceive(TInt aFunction, const TDesC& aParam0, TRequestStatus& aStatus) const;
+	TInt SendReceive(TInt aFunction, const TDesC& aParam0) const;
+	TInt SendReceiveResult(TInt aFunction, const TDesC8& aParam0, const TDesC8& aParam1, TDes& aResult) const;
+
+	// custom command versions for non-UID commands
+	TInt SendReceive(TInt aFunction, TInt aParam0, const TDesC8& aParam1, const TDesC8& aParam2) const;
+	TInt SendReceiveResult(TInt aFunction, TInt aParam0, const TDesC8& aParam1, const TDesC8& aParam2, TDes8& aResult) const;
+	void SendReceive(TInt aFunction, TInt aParam0, const TDesC8& aParam1, const TDesC8& aParam2, TRequestStatus& aStatus) const;
+	void SendReceiveResult(TInt aFunction, TInt aParam0, const TDesC8& aParam1, const TDesC8& aParam2, TDes8& aResult, TRequestStatus& aStatus) const;
+	};
+
+
+/**
+ * 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/mmfipc.inl>
+
+#endif // __MMF_COMMON_MMFIPC_H__