securitydialogs/lockclient/inc/lockaccessextension.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 11 Jun 2010 14:28:40 +0300
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/*
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* Copyright (c) 2007 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:  Extension to lockapp clients.
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 *
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*/
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#ifndef __LOCKACCESSEXTENSION_H__
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#define __LOCKACCESSEXTENSION_H__
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#include <e32base.h>
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#if defined(_DEBUG)
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#define RDEBUG( x, y ) RDebug::Printf( "%s %s (%u) %s=%x", __FILE__, __PRETTY_FUNCTION__, __LINE__, x, y );
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#else
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#define RDEBUG( x, y )
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#endif
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0
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class RWsSession;
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/**
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 *  RLockAccessExtension class.
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 *  Extension class used to access lockapp.
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 *
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 *  @lib    lockclient
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 *  @since  5.0
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 *  @author Tamas Koteles
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 */
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class RLockAccessExtension : public RSessionBase
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	{
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	public:
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		/**
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		 * From @c RSessionBase. Sends a message.
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		 * @return KErrNone if succeeded or already connected.
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		 *         KErrNotReady if the server is not yet fully initialized.
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		 *         otherwise standard RSessionBase error values.
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		 */
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		TInt SendMessage( TInt aMessage );
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		/**
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		 * From @c RSessionBase. Sends a message with a parameter.
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		 * @return KErrNone if succeeded or already connected.
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		 *         KErrNotReady if the server is not yet fully initialized.
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		 *         otherwise standard RSessionBase error values.
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		 */
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		TInt SendMessage( TInt aMessage, TInt aParam1 );
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		/**
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		 * From @c RSessionBase. Sends a message with two parameter.
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		 * @return KErrNone if succeeded or already connected.
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		 *         KErrNotReady if the server is not yet fully initialized.
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		 *         otherwise standard RSessionBase error values.
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		 */
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		TInt SendMessage( TInt aMessage, TInt aParam1, TInt aParam2 );
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	private:
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		/**
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		 * Returns the server's version.
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		 */
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		TVersion GetVersion( );
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		/**
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		 * Tries to create session to service.
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		 * Must be called before accessing other methods in the API.
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		 *
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		 * @return KErrNone if succeeded or already connected.
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		 *         KErrNotReady if the server is not yet fully initialized.
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		 *         KErrNotSupported if the CoeEnv is not available
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		 *         otherwise standard RSessionBase error values.
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		 */
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		TInt TryConnect( RWsSession& aWsSession );
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		/**
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		 * Ensures that the connection to the service is alive.
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		 * Tries to connect to service if not connected.
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		 *
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		 * @return KErrNone if succeeded or already connected.
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		 *         KErrNotReady if the server is not yet fully initialized.
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		 *         KErrNotSupported if the CoeEnv is not available
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		 *         otherwise standard RSessionBase error values.
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		 */
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		TInt EnsureConnected( );
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	};
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#endif // __LOCKACCESSEXTENSION_H__