sl@0: // Copyright (c) 1997-2009 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: // This file contains the definition for the TImplementationProxy structure.
sl@0: // 
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @publishedAll
sl@0:  @released
sl@0: */
sl@0: 
sl@0: #ifndef __IMPLEMENTATIONPROXY_H__
sl@0: #define __IMPLEMENTATIONPROXY_H__
sl@0: 
sl@0: // ____________________________________________________________________________
sl@0: // INCLUDES
sl@0: 
sl@0: 
sl@0: #include <e32std.h>
sl@0: 
sl@0: 
sl@0: // ____________________________________________________________________________
sl@0: // TYPES - TImplementationProxy
sl@0: 
sl@0: /**
sl@0: Pre-defined function pointer type used in TImplementationProxy
sl@0: @leave		KErrNoMemory
sl@0: @leave      Or any of the System Wide error codes
sl@0: @return     TAny* A pointer to the instantiated interface implementation.
sl@0: */
sl@0: typedef TAny* (*TFuncPtr)();
sl@0: 
sl@0: /**
sl@0: Typedef used to cover the difference between EABI and older handling
sl@0: of the instantiation method pointer.
sl@0: */
sl@0: #if  defined(__EABI__) || defined(__GCCXML__) || defined(__X86GCC__) || defined(__GCCE__)
sl@0:   typedef TFuncPtr TProxyNewLPtr;
sl@0: #else
sl@0:   typedef TAny* TProxyNewLPtr;
sl@0: #endif
sl@0: 
sl@0: 
sl@0: /**
sl@0: The structure that defines the pairing required by the ECOM framework
sl@0: to correctly identify the instantiation method pointer to provide
sl@0: to a client's resolution request.
sl@0: */
sl@0: typedef struct
sl@0: 	{
sl@0: 	/** The unique UID for an Interface Implementation */
sl@0: 	TUid	iImplementationUid;
sl@0: 	/** The pointer to the instantiation method for the Interface Implementation identified by the UID.*/
sl@0: 	TProxyNewLPtr iNewLFuncPtr;
sl@0: 	} TImplementationProxy;
sl@0: 	
sl@0: /**
sl@0: Macro to initialise an element of a static array of TImplementationProxy objects.
sl@0: This macro deals with casting the function pointer to the type used in the structure.
sl@0: */
sl@0: #define IMPLEMENTATION_PROXY_ENTRY(aUid, aFuncPtr)	{{aUid},(TProxyNewLPtr)(aFuncPtr)}
sl@0: 
sl@0: #ifndef SYMBIAN_ENABLE_SPLIT_HEADERS
sl@0: #include <ecom/extendedinterfaceimplementationproxy.h>
sl@0: #endif
sl@0: 
sl@0: 
sl@0: #endif	// __IMPLEMENTATIONPROXY_H__