On Aug 13, 2:31 am, "Gabriel Genellina" <gagsl-... at yahoo.com.ar> wrote: > Use the same Queue; put a special kind of Action, or just a None object, > to tell the thread that there are no more things to process. > From the main thread, you can join() the others, waiting for them to > finish. Ah, thank you very much. :) - Aaron J. M.