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From: Kilgallen@SpamCop.net (Larry Kilgallen)
Newsgroups: comp.lang.ada
Subject: Re: Isn't this in favour of Ada??
Date: 15 Jul 2005 16:10:12 -0500
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In article <8764vcdv2f.fsf@deneb.enyo.de>, Florian Weimer <fw@deneb.enyo.de> writes:

> I also fail to see Ada's advantages because Ada tasking tends to match
> poorly to concurrency models supported by operating systems.  For
> example, how can you add a select alternative which waits for activity
> on a specific file descriptor, without introducing many pointless
> context switches?

I don't know "file descriptor" as an Ada term, but presuming you mean
activity on a file, I would use the VMS Lock Manager requesting an AST
when there is activity (if I were creating an Ada implementation).