// We're hitting 255 machines in parallel :)

// Returns list of found aware machines

static bool empBlast_verbose;

static L<S> empBlast() {

  ret empBlast(f isAware);

}

static L<S> empBlast(fO checkPeer) {

  final L<S> l = synchroList();

  new L<Thread> threads;

  S ip = getMyIP();

  int i = ip.lastIndexOf('.');

  if (i < 0) ret l;

  S net = substring(ip, 0, i+1);

  L<S> myIPs = myIPs();

  print("EMP-BLASTING " + net + "*");

  for (int n = 1; n <= 255; n++) {

    fS peer = net + n;

    if (!myIPs.contains(peer)) {

      S msg = "Peer Scan " + peer;

      threads.add(startThread(msg, r {

        bool yes = false;

        try {

          yes = isTrue(callF(checkPeer, peer));

          if (yes) l.add(peer);

        } finally {

          if (empBlast_verbose) print(peer + ": " + (yes ? "Yes" : "No (or timeout)"));

        }

      }));

    }

  }

  waitForThreads(threads);

  ret l;

}