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#ifndef _SFXIDPOOL_HXX
#define _SFXIDPOOL_HXX

#include <limits.h>		// USHRT_MAX
#include "bitset.hxx"

// class IdPool ----------------------------------------------------------

class IdPool: private BitSet
{
private:
    USHORT nNextFree;
    USHORT nRange;
    USHORT nOffset;
public:
    BOOL Lock( const BitSet& rLockSet );
    BOOL IsLocked( USHORT nId ) const;
    IdPool( USHORT nMin = 1, USHORT nMax = USHRT_MAX );
    USHORT Get();
    BOOL Put( USHORT nId );
    BOOL Lock( const Range& rRange );
    BOOL Lock( USHORT nId );

};

//------------------------------------------------------------------------

// returns TRUE if the id is locked

inline BOOL IdPool::IsLocked( USHORT nId ) const
{
    return ( this->Contains(nId-nOffset) );
}


#endif