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From: "Randy Brukardt" <randy@rrsoftware.com>
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Subject: Re: question about tasks, multithreading and multi-cpu machines
Date: Thu, 16 Mar 2006 21:26:19 -0600
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Date: 2006-03-16T21:26:19-06:00
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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
news:1b9zea3ok5znb.13wc5k9as88ix.dlg@40tude.net...
> On Thu, 16 Mar 2006 09:06:12 +0100, Maciej Sobczak wrote:
>
> > The tasks in Ada do not match any of the above. Other languages (for
> > example Java) also got it wrong, by treating threads as objects or even
> > by allowing a programmer to "subclass" or "specialize" a thread class.
>
> Hmm, if task type is a type then it should obey operations of the types
> algebra, which includes inheritance, aggregation. So I vote for tagged
task
> types.

Sounds like you're ready for Ada 200Y, which has tagged task types. :-)

No extension, though, because no one has a clear model for what it could
mean to extend a chunk of code (especially to compose synchronization in a
meaningful way).

                            Randy.