public FileSegment(int index, long start, long end, FileSegmentType type)
{
Index = index;
Start = start;
End = end;
Type = type;
Key = new FileSegmentKey(index, type);
}
public FileSegmentKey(int index, FileSegmentType type)
{
_type = type;
if (type == FileSegmentType.Tail)
{
_value = -1;
}
else
{
if (index < 0)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
_value = index;
}
}
