// ============================================================================
//  Copyright (C) 2001-2009 by Jozef Starosczyk
//  ixen@copyhandler.com
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Library General Public License
//  (version 2) as published by the Free Software Foundation;
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU Library General Public
//  License along with this program; if not, write to the
//  Free Software Foundation, Inc.,
//  59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// ============================================================================
/// @file  TWorkerThreadController.h
/// @date  2010/09/04
/// @brief Contains class TWorkerThreadController.
// ============================================================================
#ifndef __TWORKERTHREADCONTROLLER_H__
#define __TWORKERTHREADCONTROLLER_H__

///////////////////////////////////////////////////////////////////////////
// TWorkerThreadController

class TWorkerThreadController
{
public:
	TWorkerThreadController();
	~TWorkerThreadController();

	// methods to be used outside of the thread being controlled
	void StartThread(PTHREAD_START_ROUTINE pThreadFunction, PVOID pThreadParam, int iPriority = THREAD_PRIORITY_NORMAL);
	void SignalThreadToStop();
	void WaitForThreadToExit();

	void StopThread();
	void ChangePriority(int iPriority);

	// methods to be used only inside the thread being controlled
	bool KillRequested();

protected:
	void RemoveZombieData(boost::upgrade_lock<boost::shared_mutex>& rUpgradeLock);

	void SignalThreadToStop(boost::upgrade_lock<boost::shared_mutex>& rUpgradeLock);
	void WaitForThreadToExit(boost::upgrade_lock<boost::shared_mutex>& rUpgradeLock);

private:
	HANDLE m_hThread;
	HANDLE m_hKillThread;
	boost::shared_mutex m_lock;
};

#endif