epoc32/include/mmf/server/mmfhwdevice.inl
author William Roberts <williamr@symbian.org>
Tue, 16 Mar 2010 16:12:26 +0000
branchSymbian2
changeset 2 2fe1408b6811
child 4 837f303aceeb
permissions -rw-r--r--
Final list of Symbian^2 public API header files
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// Copyright (c) 2002-2009 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 the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
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// which accompanies this distribution, and is available
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// at the URL "http://www.symbianfoundation.org/legal/licencesv10.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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//
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#ifndef __MMF_HW_DEVICE_INL__
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#define __MMF_HW_DEVICE_INL__
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#include <ecom/ecom.h>
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/**
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Create a CMMFHwDevice object from .dll.
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Will leave if dll cannot be loaded (KErrNotFound).
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@param dll Implementation .dll
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@return an instantiated CMMFHwDevice derived object from a DLL.
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*/
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inline CMMFHwDevice* CMMFHwDevice::NewL(TFileName dll)
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	{
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	RLibrary library;
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	User::LeaveIfError(library.Load(dll));
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	TLibraryFunction entry=library.Lookup(2); // 1 ponits to implementation table
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	CMMFHwDevice* mmfHwDevice = (CMMFHwDevice*)entry();
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	return mmfHwDevice;
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	}
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/**
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 *
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 * Destructor
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 *
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 */
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CMMFHwDevice::~CMMFHwDevice()
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	{
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	// Destroy any instance variables and then
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	// inform ecom that this specific
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	// instance of the interface has been destroyed.
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	REComSession::DestroyedImplementation(iDtor_ID_Key);
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	}
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/**
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 *
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 *	Create a CMMFHwDevice object with a known implementation Uid.
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 *  Will leave if it is not found (KErrNotFound).
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 *
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 *	@param aUid   -  The Uid of a plugin implementation
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 *
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 *	@return An instantiated CMMFHwDevice derived object from ECom.
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 *
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 */
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inline CMMFHwDevice* CMMFHwDevice::NewL(TUid aUid)
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	{
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	CMMFHwDevice* device = REINTERPRET_CAST(CMMFHwDevice*,
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											REComSession::CreateImplementationL(aUid, _FOFF(CMMFHwDevice,iDtor_ID_Key)));
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	return device;
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	}
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#endif