public bool BeginIteration(int initialBlock)
{
PhysicalBlock = initialBlock;
Fat.ReadEntry(initialBlock, out _nextBlock, out _prevBlock, out _currentSegmentSize);
return(_prevBlock == -1);
}
public bool MoveNext()
{
if (_nextBlock == -1)
{
return(false);
}
VirtualBlock += _currentSegmentSize;
PhysicalBlock = _nextBlock;
Fat.ReadEntry(_nextBlock, out _nextBlock, out _prevBlock, out _currentSegmentSize);
return(true);
}
public bool MovePrevious()
{
if (_prevBlock == -1)
{
return(false);
}
PhysicalBlock = _prevBlock;
Fat.ReadEntry(_prevBlock, out _nextBlock, out _prevBlock, out _currentSegmentSize);
VirtualBlock -= _currentSegmentSize;
return(true);
}