public override IEnumerable <StreamExtent> GetExtentsInRange(long start, long count)
{
CheckDisposed();
long maxCount = Math.Min(Length, start + count) - start;
if (maxCount < 0)
{
return(new StreamExtent[0]);
}
var parentExtents = _parentDiskStream.GetExtentsInRange(_diskOffset + start, maxCount);
parentExtents = StreamExtent.Offset(parentExtents, -_diskOffset);
var result = StreamExtent.Union(LayerExtents(start, maxCount), parentExtents);
result = StreamExtent.Intersect(result, new StreamExtent[] { new StreamExtent(start, maxCount) });
return(result);
}
