restart

# File actioncable/lib/action_cable/server/base.rb, line 44
      def restart
        connections.each do |connection|
          connection.close(reason: ActionCable::INTERNAL[:disconnect_reasons][:server_restart])
        end

        @mutex.synchronize do
          # Shutdown the worker pool
          @worker_pool.halt if @worker_pool
          @worker_pool = nil

          # Shutdown the pub/sub adapter
          @pubsub.shutdown if @pubsub
          @pubsub = nil
        end
      end