}
	err = conn.SetWriteDeadline(time.Now().Add(connWriteTimeout))
	if err != nil {
		return err
	}
	return wsutil.WriteMessage(conn, c.side, ws.OpBinary, dst)
}

func (c *Connection) connect() {
	c.updateState(StateConnecting)
	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
	// Runs until the server is shut down.
	for {
		if c.State() == StateShutdown {
			return
		}

			// Actually fetch
			origState, err = getCurrentState()
			if err != nil {
				return err
			}
			origStateIsCurrent = true
			// Retry
			continue
		}

		ret, ttl, err := s.updateState(origState, tryUpdate)
		if err != nil {
			// If our data is already up to date, return the error
			if origStateIsCurrent {
				return err
			}

			// It's possible we were working with stale data

// event through a channel.
type testClientConn struct {
	resolver.ClientConn
	stateCh chan resolver.State
	errorCh chan error
}

func (t *testClientConn) UpdateState(s resolver.State) error {
	t.stateCh <- s
	return nil
}

func (t *testClientConn) ReportError(err error) {
	t.errorCh <- err
}