class socket_descr :Creates a?blocking:bool -> ?start_pos_in:int -> ?start_pos_out:int -> Unix.file_descr ->raw_io_channel
raw_io_channel for the passed socket descriptor, which must
be open for reading and writing, and not yet shut down in either
direction. The raw_io_channel is used to represent a bidirectional
channel: close_out shuts the socket down for sending, close_in
shuts the socket down for reading, and when both directions are down,
the descriptor is closed.
The pos_in and pos_out methods returns logical positions.
blocking : See Netchannels.input_descr and Netchannels.output_descrstart_pos_in : The position to which pos_in is initialized when
the channel is created, by default 0start_pos_out : The position to which pos_out is initialized when
the channel is created, by default 0