Ruby tcp socket server with socket select

select_server.rb

#!/usr/bin/env ruby

require 'socket'

@mysocket = TCPSocket.new('127.0.0.1', 9761)

while true
    ready = IO.select([@mysocket])
    readable = ready[0]

    readable.each do |socket|
        if socket == @mysocket
            buf = @mysocket.recv_nonblock(1024)
            if buf.length == 0
                puts "The server connection is dead. Exiting."
                exit
            else
                puts "Received a message: #{buf}"
            end
        end
    end
end