/// <summary>
/// CallBack for timer
/// </summary>
/// <param name="arg"> Unused argument because we must not transfert state to callback during the callback.</param>
private void HandleTick(object arg)
{
var nextLastCheck = _watch.ElapsedMilliseconds;
var newValue = _updater.UpdateValue(nextLastCheck - _lastCheck);
_lastCheck = nextLastCheck;
_current = _current.UpDateValue(newValue);
_mdProducer.Post(_current);
}
