hijack_rack_socket

# File actioncable/lib/action_cable/connection/stream.rb, line 40
      def hijack_rack_socket
        return unless @socket_object.env['rack.hijack']

        @socket_object.env['rack.hijack'].call
        @rack_hijack_io = @socket_object.env['rack.hijack_io']

        @event_loop.attach(@rack_hijack_io, self)
      end