[Oz] multi-thread

[Christian Schulte]

Francois Girault wrote:
> 
> Dear Oz users,
> 
> I'd like to know what does the value  "_<simple>"
> mean
> I have several threads accessing the same object
> attribute. This attribute is a big record. Also,
> I'd like to know if the value "_<simple>" come
> from a thread how is reading the value during an
> other is writing on it.

The output _<simple> means a logic variable (this is the _) which is
simple (not distributed, a future, and so on). You are discribing a
concurrent scenario where several threads seem to update the state of an
object. These kinds of scenarios you'll find discussed in


http://www.mozart-oz.org/documentation/tutorial/node11.html#chapter.objectscc

Best regards
--Christian

------------------------------------------------------------------------
Christian Schulte, Programming Systems Lab, DFKI GmbH
Postfach 15 11 50, 66041 Saarbrücken, Germany
Tel: +49 681 302-5340; Fax: +49 681 302-5615 Net: schulte at dfki.de  
URL: http://www.ps.uni-sb.de/~schulte/
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