//  ================================================================
class TTARRAY
//  ================================================================
	{
	public:

		class RUN
			{
			public:
				RUN()
					:	pgno( pgnoNull ),
						fWriteLatch( fFalse )
					{
					bfl.pv			= NULL;
					bfl.dwContext	= NULL;
					}
			
			public:
				PGNO	pgno;
				BFLatch	bfl;
				BOOL	fWriteLatch;
			};
	
	public:
		TTARRAY( const ULONG culEntries, const ULONG ulDefault = 0 );
		~TTARRAY();

		ERR ErrInit( INST * const pinst );

		VOID BeginRun( PIB* const ppib, RUN* const prun );
		VOID EndRun( PIB* const ppib, RUN* const prun );
		
		ERR ErrSetValue( PIB * const ppib, const ULONG ulEntry, const ULONG ulValue, RUN* const prun = NULL );
		ERR ErrGetValue( PIB * const ppib, const ULONG ulEntry, ULONG * const pulValue, RUN* const prun = NULL ) const;
		
	private:
		TTARRAY( const TTARRAY& );
		TTARRAY& operator= ( const TTARRAY& );

		BOOL FPageInit( const PGNO pgno ) const;
		VOID SetPageInit( const PGNO pgno );

	private:

		ULONG			m_culEntries;
		ULONG			m_ulDefault;

		PIB*			m_ppib;
		FUCB*			m_pfucb;
		PGNO			m_pgnoFirst;
		ULONG*			m_rgbitInit;
		
		static DWORD	s_cTTArray;
	};


//  ================================================================
class TTMAP
//  ================================================================
	{
	public:
		TTMAP( PIB * const ppib );
		~TTMAP();

		ERR ErrInit( INST * const );
		ERR ErrInsertKeyValue( const ULONG ulKey, const ULONG ulValue )
			{
			return ErrInsertKeyValue_( ulKey, ulValue );
			}
		ERR ErrSetValue( const ULONG ulKey, const ULONG ulValue );
		ERR ErrGetValue( const ULONG ulKey, ULONG * const pulValue ) const;
		ERR ErrIncrementValue( const ULONG ulKey );
		ERR ErrDeleteKey( const ULONG ulKey );

		ERR ErrMoveFirst();
		ERR ErrMoveNext();
		ERR ErrGetCurrentKeyValue( ULONG * const pulKey, ULONG * const pulValue ) const;
		
		ERR ErrFEmpty( BOOL * const pfEmpty ) const;

	private:
		TTMAP( const TTMAP& );
		TTMAP& operator= ( const TTMAP& );

	private:
		ERR	ErrInsertKeyValue_( const ULONG ulKey, const ULONG ulValue );
		ERR ErrRetrieveValue_( const ULONG ulKey, ULONG * const pulValue ) const;
		
	private:
		JET_TABLEID	m_tableid;
		JET_SESID	m_sesid;

		JET_COLUMNID	m_columnidKey;
		JET_COLUMNID	m_columnidValue;
		
		LONG			m_crecords;
	};