// ThinThread.h : header file
// Copyright (C) 1997 by The Windward Group, All Rights Reserved

#ifndef THINTHREAD_H
#define THINTHREAD_H

#ifndef __AFXWIN_H__
	#error include 'stdafx.h' before including this file for PCH
#endif

#include <afxmt.h>

/////////////////////////////////////////////////////////////////////////////
class CThinThread
{
public:
	CThinThread();
	virtual ~CThinThread();

	BOOL CreateThread(DWORD dwCreateFlags = 0,
				   UINT nStackSize = 0,
				   LPSECURITY_ATTRIBUTES lpSecurityAttrs = NULL,
				   UINT nMilliSecs = INFINITE);	// upper time limit to wait

	HANDLE GetHandle() {return m_hThread2;}
	BOOL IsBusy()	{return m_b2ndThread;}
	void Stop()	{m_bEndThread = TRUE;}

protected:
	CEvent*		m_pWorkEvent;		// do work event
	CEvent*		m_pExitEvent;		// used to synchronize destruction
	int			m_nCycleTime;		// do work cycle time
	BOOL		m_bEndThread;		// end the thread ?
	BOOL		m_b2ndThread;		// 2nd thread active?
	HANDLE		m_hThread2;			// 2nd thread handle

	virtual void StartWork() {}		// override to do startup
	virtual void DoWork() = 0;		// override to do work
	virtual void EndWork() {}		// override to do shutdown

	CEvent* GetEvent() const {return m_pWorkEvent;}	// cycle control event
	int GetCycleTime() const {return m_nCycleTime;}
	void KillThread2();
	int Run();
	void SetCycleTime(int nMilliSecs) {m_nCycleTime = nMilliSecs;}
	static unsigned int __stdcall Start(void* pv);
};
#endif