class DRb::DRbTCPSocket

def accept

the server's side of this client-server session.
accept a client connection and return a new instance to handle
On the server side, for an instance returned by #open_server, 
def accept
  while true
    s = accept_or_shutdown
    return nil unless s
    break if (@acl ? @acl.allow_socket?(s) : true)
    s.close
  end
  if @config[:tcp_original_host].to_s.size == 0
    uri = "druby://#{s.addr[3]}:#{@config[:tcp_port]}"
  else
    uri = @uri
  end
  self.class.new(uri, s, @config)
end