harvester/server/inc/unmounthandlerao.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 14 Sep 2010 22:10:25 +0300
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/*
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* Copyright (c) 2008-2009 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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*/
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#ifndef UNMOUNTHANDLERAO_H
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#define UNMOUNTHANDLERAO_H
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#include <e32base.h>	// For CActive, link against: euser.lib
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#include <e32std.h>		// For RTimer, link against: euser.lib
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#include <e32msgqueue.h>
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class MUnmountObserver
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{
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public:
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	virtual void HandleUnmount( TUint32 aMediaId ) = 0;
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};
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class CUnmountHandlerAO : public CActive
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{
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public:
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	// Cancel and destroy
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	~CUnmountHandlerAO();
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	// Two-phased constructor.
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	static CUnmountHandlerAO* NewL( MUnmountObserver& aObserver );
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	// Two-phased constructor.
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	static CUnmountHandlerAO* NewLC( MUnmountObserver& aObserver );
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public: // New functions
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	// Function for making the initial request
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	void WaitForUnmountL();
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private:
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	// C++ constructor
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	CUnmountHandlerAO( MUnmountObserver& aObserver );
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	// Second-phase constructor
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	void ConstructL();
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private: // From CActive
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	// Handle completion
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	void RunL();
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	// How to cancel me
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	void DoCancel();
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	// Override to handle leaves from RunL(). Default implementation causes
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	// the active scheduler to panic.
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	TInt RunError( TInt aError );
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private:
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	MUnmountObserver* iUnmountObserver;
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	RMsgQueue<TUint32> iMsgQueue;
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};
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#endif // UNMOUNTHANDLERAO_H