public virtual void Mark (int readlimit)
{
if (Wrapped is WrappedSystemStream)
((WrappedSystemStream)Wrapped).InputStream.Mark (readlimit);
else {
if (BaseStream is WrappedSystemStream)
((WrappedSystemStream)BaseStream).OnMark (readlimit);
if (Wrapped != null)
_mark = Wrapped.Position;
}
}
internal void OnMark(int nb)
{
_markedPosition = _position;
_ist.Mark(nb);
}