public void Shutdown(int sleep_delay)
{
bool flag;
lock (shutdownlock)
{
flag = !hasbeenshutdown;
hasbeenshutdown = true;
}
if (!flag)
{
return;
}
InternalLogger.Shutdown();
if (ControllerSelf != null)
{
ControllerSelf.Shutdown();
}
Status = PrinterStatus.Error_PrinterNotAlive;
Thread.Sleep(sleep_delay);
shared_shutdown.Value = true;
}