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Message-Id: <18824603.NgNnWmvhLG@linux1.krischik.com>
From: Martin Krischik <martin@krischik.com>
Subject: Re: task synchronization and activation
Newsgroups: comp.lang.ada
Reply-To: martin@krischik.com
Date: Sat, 19 Feb 2005 17:11:43 +0100
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Date: 2005-02-19T17:11:43+01:00
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Evangelista Sami wrote:

> Hello all
> 
> Why does a task have to wait that all the tasks it created are
> activated before
> executing? I am thinking of point 9.particulare RM :
> 
> "The task that created the new tasks and initiated their activations
> (the activator) is blocked until all of these activations complete
> (successfully or not)."
> 
> I can understand that a master has to wait for the tasks he created
> before finalizing since in the other case it could "free" some memory
> needed by its children.
> But i cannot see why this synchronisation after activation is
> necessary. What is the technical reason?

So you can make the first rendezvous with that task. It all depends on the
actual implementation but every task need some internal house keeping
informations and data structures for inter process comunication and they
need to be - savely - initialzed.

Martin
-- 
mailto://krischik@users.sourceforge.net
Ada programming at: http://ada.krischik.com