# When the client goes away, terminate the current process
  # and also kill the mysql query that is running on the server.
  my $watch= watch_socket(
    socket => $socket,
    event => EVENT_EOF|EVENT_EPIPE,
    actions => [
      [ run => 'mysql', -e => "kill $id" ],
      [ kill => $$, SIGKILL ],
    ]
  );