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// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// This file contains the definition for the TImplementationProxy structure.
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//
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//
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/**
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@file
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@publishedAll
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@released
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*/
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#ifndef __IMPLEMENTATIONPROXY_H__
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#define __IMPLEMENTATIONPROXY_H__
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// ____________________________________________________________________________
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// INCLUDES
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#include <e32std.h>
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// ____________________________________________________________________________
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// TYPES - TImplementationProxy
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/**
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Pre-defined function pointer type used in TImplementationProxy
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@leave KErrNoMemory
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@leave Or any of the System Wide error codes
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@return TAny* A pointer to the instantiated interface implementation.
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*/
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typedef TAny* (*TFuncPtr)();
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/**
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Typedef used to cover the difference between EABI and older handling
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of the instantiation method pointer.
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*/
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#if defined(__EABI__) || defined(__GCCXML__) || defined(__X86GCC__) || defined(__GCCE__)
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typedef TFuncPtr TProxyNewLPtr;
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#else
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typedef TAny* TProxyNewLPtr;
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#endif
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/**
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The structure that defines the pairing required by the ECOM framework
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to correctly identify the instantiation method pointer to provide
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to a client's resolution request.
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*/
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typedef struct
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{
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/** The unique UID for an Interface Implementation */
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TUid iImplementationUid;
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/** The pointer to the instantiation method for the Interface Implementation identified by the UID.*/
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TProxyNewLPtr iNewLFuncPtr;
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} TImplementationProxy;
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/**
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Macro to initialise an element of a static array of TImplementationProxy objects.
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This macro deals with casting the function pointer to the type used in the structure.
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*/
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#define IMPLEMENTATION_PROXY_ENTRY(aUid, aFuncPtr) {{aUid},(TProxyNewLPtr)(aFuncPtr)}
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#ifndef SYMBIAN_ENABLE_SPLIT_HEADERS
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#include <ecom/extendedinterfaceimplementationproxy.h>
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#endif
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#endif // __IMPLEMENTATIONPROXY_H__
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