         # File lib/pr_eventmachine.rb, line 832
    832:       def start_server chain
    833:         sd = Socket.new( Socket::AF_LOCAL, Socket::SOCK_STREAM, 0 )
    834:         sd.setsockopt( Socket::SOL_SOCKET, Socket::SO_REUSEADDR, true )
    835:         sd.bind( Socket.pack_sockaddr_un( chain ))
    836:         sd.listen( 50 ) # 5 is what you see in all the books. Ain't enough.
    837:         EvmaUNIXServer.new sd
    838:       end