class Redis::Client

def timeout=(timeout)
  secs   = Integer(timeout)
  usecs  = Integer((timeout - secs) * 1_000_000)
  optval = [secs, usecs].pack("l_2")
  begin
    @sock.setsockopt Socket::SOL_SOCKET, Socket::SO_RCVTIMEO, optval
    @sock.setsockopt Socket::SOL_SOCKET, Socket::SO_SNDTIMEO, optval
  rescue Errno::ENOPROTOOPT
  end
end