internal void Stop()
{
main_thread.Invoke(delegate {
current_state = ProcessState.Stopping;
SuspendUserThreads(ThreadingModel.Process, null);
current_state = ProcessState.Stopped;
if (current_operation != null)
{
current_operation.Completed();
current_operation = null;
}
stopped_event.Set();
return(null);
}, null);
}