private void CheckDriverHeartbeat()
{
var now = _epochClock.Time();
var currentDriverKeepaliveTime = _driverProxy.TimeOfLastDriverKeepalive();
if (_driverActive && (now > (currentDriverKeepaliveTime + _driverTimeoutMs)))
{
_driverActive = false;
string msg = $"Driver has been inactive for over {_driverTimeoutMs:D}ms";
_errorHandler(new DriverTimeoutException(msg));
}
}
