/// <summary>
/// Gets the parts of a buffer that are stored, within a specified range.
/// </summary>
/// <param name="start">The offset of the first byte of interest.</param>
/// <param name="count">The number of bytes of interest.</param>
/// <returns>An enumeration of stream extents, indicating stored bytes.</returns>
public override IEnumerable <StreamExtent> GetExtentsInRange(long start, long count)
{
long absStart = _first + start;
long absEnd = Math.Min(absStart + count, _first + _length);
return(OffsetExtents(_parent.GetExtentsInRange(absStart, absEnd - absStart)));
}
/// <summary>
/// Gets the parts of a stream that are stored, within a specified range.
/// </summary>
/// <param name="start">The offset of the first byte of interest.</param>
/// <param name="count">The number of bytes of interest.</param>
/// <returns>An enumeration of stream extents, indicating stored bytes.</returns>
public override IEnumerable <StreamExtent> GetExtentsInRange(long start, long count)
{
return(_buffer.GetExtentsInRange(start, count));
}