// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "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:

//

#ifndef CRECEIVETHREADMAN_H

#define CRECEIVETHREADMAN_H

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include <e32def.h>

#include "mltsyreceivethreadcallbackinterfaces.h"

class CReceiveThreadLifeWatcher;

class CReceiveThreadWaitLoopSignaller;

/**

 * Manager class for controlling a number of objects that are responsible for

 *  the spawning of a receive thread and then signalling back to the main CTSY thread

 *  when an event is received. This allows all LTSY processing to be performed on the 

 *  same thread of execution as CTSY and Etel run. 

 */

class CReceiveThreadManager : public CBase 

	{

public:

	static CReceiveThreadManager* NewL(MLtsyReceiveThreadEventStateHandler& aEventHandler, MLtsyReceiveThreadObserver& aLifeObserver);

	~CReceiveThreadManager();

	void StartReceiveThreadL();

	void StopReceiveThread();

protected:

	void ConstructL(MLtsyReceiveThreadEventStateHandler& aEventHandler, MLtsyReceiveThreadObserver& aLifeObserver);

	CReceiveThreadManager();

	void SpawnReceiveThreadL();

	static TInt StartReceiveThreadFn(TAny* aArg);

private:

	RThread iThread;

	CReceiveThreadLifeWatcher* iThreadLifeWatcher;

	CReceiveThreadWaitLoopSignaller* iReceiveThreadWaitLoopSignaller;

	};

/**

 * Class that watches for the life of the receive thread.  It uses RThread::Logon 

 * that will complete when the thread dies.

 */

class CReceiveThreadLifeWatcher : public CActive

	{

public:

	static CReceiveThreadLifeWatcher* NewL(MLtsyReceiveThreadObserver& aReceiveThreadLifeObserver);

	~CReceiveThreadLifeWatcher();

	void LogonL(TThreadId aID);

protected: //from CActive

	void RunL();

	void DoCancel();

protected:

	void ConstructL();	

	 CReceiveThreadLifeWatcher(MLtsyReceiveThreadObserver& aReceiveThreadLifeObserver);

private:

	RThread iThread;

	MLtsyReceiveThreadObserver& iReceiveThreadLifeObserver;

	};

/**

 * Class that signals the thread switch from the receive thread to the Etel/CTSY thread on receiving a signal

*/

class CReceiveThreadWaitLoopSignaller : CActive

	{

public:

	static CReceiveThreadWaitLoopSignaller* NewL(MLtsyReceiveThreadEventStateHandler& aEventHandler);

	~CReceiveThreadWaitLoopSignaller();

	void StartReceiver();

	TInt WaitLoop();

protected: //from CActive

	void RunL();

	void DoCancel();

protected:

	void ConstructL();	

	CReceiveThreadWaitLoopSignaller(MLtsyReceiveThreadEventStateHandler& aEventHandler);

	void RequestComplete(RThread& aThread, TRequestStatus& aStatus, TInt aError);

private:

	TInt ExecSync();

private:

	RThread iEtelThread;

	RThread iLtsyReceiveThread;

	TRequestStatus iLtsyReceiveThreadReqStatus;

	MLtsyReceiveThreadEventStateHandler& iEventHandler;

	};

#endif //CRECEIVETHREADMAN_H