class type raw_in_channel =Basic Unix-level class type for input channels as used by ocamlnet. In addition to the recommended standard, ocamlnet always support a position counterobject..end
method pos_in : intinput, i.e.
when input returns n, the position is advanced by n.
As seek operations are outside the scope of Netchannels,
implementations may or may not take seek operations into account.
