code: static void tcp_call( final AutoBuffer ab ) {
      ab.getPort();
      long[] snap = ab.getA8();
      int idx = CLOUD.nidx(ab._h2o);
      if (idx >= 0 && idx < SNAPSHOT.length)
        SNAPSHOT[idx] = snap;     // Ignore out-of-cloud timelines
      ab.close();
      synchronized (TimeLine.class) {
        TimeLine.class.notify();
      }
    }
docs: Receive a remote timeline