# File lib/dbus/export.rb, line 43
    def dispatch(msg)
      case msg.message_type
      when Message::METHOD_CALL
        reply = nil
        begin
          if not self.intfs[msg.interface]
            raise DBus.error("org.freedesktop.DBus.Error.UnknownMethod"),
            "Interface \"#{msg.interface}\" of object \"#{msg.path}\" doesn't exist"
          end
          meth = self.intfs[msg.interface].methods[msg.member.to_sym]
          if not meth
            raise DBus.error("org.freedesktop.DBus.Error.UnknownMethod"),
            "Method \"#{msg.member}\" on interface \"#{msg.interface}\" of object \"#{msg.path}\" doesn't exist"
          end
          methname = Object.make_method_name(msg.interface, msg.member)
          retdata = method(methname).call(*msg.params)
          retdata =  [*retdata]

          reply = Message.method_return(msg)
          meth.rets.zip(retdata).each do |rsig, rdata|
            reply.add_param(rsig.type, rdata)
          end
        rescue => ex
          reply = ErrorMessage.from_exception(ex).reply_to(msg)
        end
        @service.bus.send(reply.marshall)
      end
    end