Path: news.cs.au.dk!not-for-mail
From: "Sascha Kimmel" <kimmel@tricos.com>
Newsgroups: comp.lang.beta
Subject: FORK FAILURE: Only newly created systems may be forked.
Date: 26 May 1999 15:11:20 -0000
Organization: University of Aarhus, Department of Computer Science (DAIMI)
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Hello (again),

thank you very much for your quick help regarding the sound
implementation with BETA.
Now I have a question about concurrency.

If I have a process like this (well, it' s really a stupid example ;-) :


Dummy:@|System
(#
	do
	cycle
	(#
		do
		'Concurrency!'->putLine;
		1->sleep;
	#);
#);

[...]

do

Dummy[]->fork;
[...]
Dummy[]->kill;
[...]
Dummy[]->fork;

[...]

then I get the following error message:
"FORK FAILURE: Only newly created systems may be forked."

So how is it possible to "re-fork" a process?
I want to start and stop a process in my program whenever I want - how
can I?

Thank you in advance!

Regards,
Sascha Kimmel
kimmel@tricos.com