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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_gau9j7572dn5a40h5k5oao74mu, 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 />
sclass DoLater implements AutoCloseable {
  long targetSysTime;
  volatile Runnable action;
  transient settable ISleeper sleeper;
  transient Executor executor;
  transient new Flag enabled;
  transient new Flag cancelledOrExecuted;
  
  *() {}
  *(long *targetSysTime, Runnable *action) {}
  
  void enable() {
    if (!enabled.raise()) ret;
    if (sleeper == null) sleeper = defaultSleeper();
    sleeper.doLater(targetSysTime, r {
      if (!cancelledOrExecuted.raise()) ret;
      runWithExecutor(action, executor);
    });
  }
  
  // returns true iff successful
  bool cancel() {
    if (!cancelledOrExecuted.raise()) false;
    ret true with close();
  }
  
  public void close {
    cancelledOrExecuted.raise();
    //dispose sleeper;
  }
}