--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/commsfwsupport/commselements/virtualconstructors/inc/vc.h	Thu Dec 17 09:22:25 2009 +0200
@@ -0,0 +1,103 @@
+// Copyright (c) 2005-2009 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:
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#ifndef SYMBIAN_VC_H
+#define SYMBIAN_VC_H
+
+#include <e32base.h>
+#include <e32std.h>
+#include <ecom/implementationproxy.h>	// for TImplementationProxy
+
+//VIP == "virtual-ctor in place"
+
+#define DECLARE_MVIP_CTR(class_name)				\
+	static class_name* PlacementNew(TDes8& aBuff);	
+
+#define DEFINE_MVIP_CTR(class_name)					\
+class_name* class_name::PlacementNew(TDes8& aBuff)	\
+	{												\
+	return new(aBuff) class_name;					\
+	}
+
+#define MVIP_CTR_ENTRY(aInterfaceUid, aMessageClass)  {{aInterfaceUid},(TProxyNewLPtr)(aMessageClass::PlacementNew)}
+
+namespace Meta
+{
+	struct STypeId;
+}
+
+namespace VC
+{
+
+class CVirtualCtorBase : public CBase
+	{
+public:
+	IMPORT_C CVirtualCtorBase();
+	IMPORT_C ~CVirtualCtorBase();
+	IMPORT_C void RegisterInterfaceL(TUid aInterfaceId, TInt aNumCtors, const TImplementationProxy* aCtorTable);
+	IMPORT_C void DeregisterInterface(TUid aInterfaceId);
+	IMPORT_C TBool IsInterfaceRegistered(TUid aInterfaceId) const;
+
+protected:
+	IMPORT_C TProxyNewLPtr FindRawCtor(const Meta::STypeId& aType) const;
+
+private:
+	class TCtorTable
+		{
+	public:
+		TCtorTable(TUid aInterfaceId, TInt aNumCtors, const TImplementationProxy* aCtorTable)
+		: iInterfaceId(aInterfaceId), 
+		  iNumCtors(aNumCtors), 
+		  iRegisteredCount(1),
+		  iCtorTable(aCtorTable)
+			{
+			}
+	public:
+		TUid iInterfaceId;
+		TInt iNumCtors;		
+		mutable TInt iRegisteredCount;
+		const TImplementationProxy* iCtorTable;		
+		};
+	typedef RArray<TCtorTable> TCtorTableList;
+	TCtorTableList iCtorTableList;
+private:
+	const TCtorTable* FindCtorTable(TUid aInterfaceId, TInt& aIndex) const;
+	};
+
+typedef TAny* (*TInPlaceNewPtr)(TDes8& aBuff);
+
+class CVirtualCtorInPlace : public CVirtualCtorBase
+	{
+public:
+	//Constructs only from the type
+	IMPORT_C TAny* New(const Meta::STypeId& aType, TDes8& aBuff) const;
+	
+	inline const TInPlaceNewPtr FindCtor(const Meta::STypeId& aType) const
+		{
+		return reinterpret_cast<const TInPlaceNewPtr>(FindRawCtor(aType));
+		}
+	};
+
+
+} //namespace VC
+
+#endif
+//SYMBIAN_VC_H
+