/**

 * vim: set ts=4 :

 * =============================================================================

 * SourceMod

 * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, 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 General Public License along with

 * this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#ifndef _INCLUDE_SOURCEMOD_THREADWORKER_H

#define _INCLUDE_SOURCEMOD_THREADWORKER_H

#include "BaseWorker.h"

#define DEFAULT_THINK_TIME_MS	20

class ThreadWorker : public BaseWorker, public IThread

{

public:

	ThreadWorker(IThreadWorkerCallbacks *hooks);

	ThreadWorker(IThreadWorkerCallbacks *hooks, IThreader *pThreader, unsigned int thinktime=DEFAULT_THINK_TIME_MS);

	virtual ~ThreadWorker();

public:	//IThread

	virtual void OnTerminate(IThreadHandle *pHandle, bool cancel);

	virtual void RunThread(IThreadHandle *pHandle);

public:	//IWorker

	//Controls the worker

	virtual bool Pause();

	virtual bool Unpause();

	virtual bool Start();

	virtual bool Stop(bool flush_cancel);

	//returns status and number of threads in queue

	virtual WorkerState GetStatus(unsigned int *numThreads);

	//virtual void SetMaxThreadsPerFrame(unsigned int threads);

	virtual void SetThinkTimePerFrame(unsigned int thinktime);

public:	//BaseWorker

	virtual void AddThreadToQueue(SWThreadHandle *pHandle);

	virtual SWThreadHandle *PopThreadFromQueue();

protected:

	IThreader *m_Threader;

	IMutex *m_QueueLock;

	IMutex *m_StateLock;

	IEventSignal *m_PauseSignal;

	IEventSignal *m_AddSignal;

	IThreadHandle *me;

	unsigned int m_think_time;

	volatile bool m_Waiting;

	volatile bool m_FlushType;

};

#endif //_INCLUDE_SOURCEMOD_THREADWORKER_H