/////////////////////////////////////////
// 쓰레드 리소스 로더

#pragma once

//#include <string>
#include <toolkit/XBossWorker.h>

/*
	사용 예 :

	class RESOURCE : public KThreadResource
	{
		virtual bool CopyFrom( KThreadResource* pResource )
		{
			memcpy( data, static_cast< RESOURCE* >( pResource )->data, sizeof(data) );

			return true;
		}

		virtual bool doLoading()
		{
			
			FILE *fp = fopen( GetResourceName(), "rb" );
			fread( data, sizeof(data), 1, fp );
			fclose( fp );

			return true;
		}

		int data[4096];
	};

	.
	.

	RESOURCE *pRes = new RESOURCE;
	KThreadResource::StartThreadLoading( pRes, "data.dat" );

*/

class KThreadResource : XBossWorker::XWorker
{
public:

	KThreadResource();
	virtual ~KThreadResource();

	virtual bool doLoading() = 0;
	
	const char*		GetResourceName() const { return m_strResourceName.c_str(); }
	inline bool		IsThreadLoadingComplete() const		{ return m_bIsThreadLoadingComplete; }
	inline bool		IsThreadLoading() const				{ return m_bIsLoading; }
	inline bool		IsPending() const					{ return m_bIsLoadingRequested; }

	static int		GetPendingWork();
	static void		StartThreadLoading( KThreadResource * pWork, const char *szName );
	static bool		CancelThreadLoading( KThreadResource * pWork );
	static bool		PendWorkToThreadPool( XBossWorker::XWorker * pWork );
	static void		CancelAllWork();

protected:

	virtual bool	CopyFrom( KThreadResource* pResource )		= 0;


	////////////////////////////////////////////
	// 이하는 인터페이스 아니므로 모듈 자체를 디버깅할것이 아니라면 볼 필요가 없음.


protected:

	void			onThreadLoadingComplete();

	virtual bool	onProcess( int nThreadNum );
	virtual void	onEnd( bool bIsCancel )
	{
		m_bIsLoading = false;
		if( !bIsCancel ) m_bIsThreadLoadingComplete = true;
	}

	volatile bool	m_bIsLoadingRequested;
	volatile bool	m_bIsLoading;
	volatile bool	m_bIsThreadLoadingComplete;
	std::string		m_strResourceName;
};