/*

* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

* Client-side API via which the SWI Installer uses the SWI Observer service.

*

*/

/**

 @file

 @internalComponent

 @released

*/

#ifndef SWIOBSERVERCLIENT_H 

#define SWIOBSERVERCLIENT_H

#include <scs/scsclient.h>

#include <swi/swiobcommon.h>

#include <swi/swiobservedinfo.h>

namespace Swi

	{

	class RSwiObserverSession : public RScsClientBase

	/**

		The SWI Installer uses this class to establish a connection with the SWI Observer

		and to transfer the log file handle including changed files list. 

	 */

		{

	public:

		IMPORT_C RSwiObserverSession();

		IMPORT_C TInt Connect();

		IMPORT_C void Close();

		IMPORT_C void ProcessLogsL(RFs& aFs);

		IMPORT_C void Register(TRequestStatus& aStatus);

		IMPORT_C void CancelRegistration();

		IMPORT_C void GetFileHandleL(TDes& aFileName);

		IMPORT_C void CommitL();

		IMPORT_C void AddEventL(const CObservationData& aData);

		IMPORT_C void AddHeaderL(const CObservationHeader& aHeader);

	private:

		RFile iFile; 				///< Handle to the log file created by the SWI Observer.

		RFileWriteStream iStream; 	///< The writing stream used to write information into the log file.

		TThreadId iClientTid; 		///< The Id of the thread who connects to the SWI Observer.

		};

	/** Delay in microseconds before the client re-tries to connect to the SWI Observer. */

	const static TInt KSWIObserverRetryDelay = 2 * 1000 * 1000;

	} // End of namespace Swi

#endif