!7

cmodule WhenBooted > DynPrintLogAndEnabled {
  long value;
  double threshold = 2.0; // minimum difference in seconds that registers
  
  start {
    if (value != 0) printValue();
    doEveryAndNow(5.0, r updateStuff);
  }
  
  void updateStuff enter {
    long newValue = computerBootTimestamp();
    if (value == 0) { setField(value := newValue); printValue(); }
    else if (toSeconds(abs(value-newValue)) >= threshold) {
      print("COMPUTER BOOT TIME CHANGED!");
      vmBus_send computerBootTimestampChanged(value, newValue);
      logQuotedWithDate(rebootLogFile(), "Boot timestamp changed from " + value + " to " + newValue);
      setField(value := newValue); printValue();
    }
  }
  
  void printValue {
    print("Computer was booted: " + formatLocalDateWithSeconds(value));
  }
}