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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_augdkbdto1sj5ilqs86ir8c0f8, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
static class Q implements AutoCloseable {
  S name = "Unnamed Queue";
  L<Runnable> q = synchroLinkedList();
  ReliableSingleThread rst = new(r { _run() });
  volatile bool retired;
  
  *() {}
  *(S *name) {}
  
  void add(Runnable r) {
    q.add(r);
    _trigger();
  }
  
  void _trigger() {
    rst.name = name;
    rst.go();
  }
  
  void add(O r) {
    add(toRunnable(r));
  }
  
  void _run() {
    Runnable r;
    while (licensed() && !retired && (r = syncPopFirst(q)) != null) {
      pcall { r.run(); }
    }
  }
  
  public void close() { retired = true; } // TODO: interrupt thread
  void done() {} // legacy function
  
  bool isEmpty() { ret q.isEmpty(); }
  int size() { ret q.size(); }
}