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From: Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: confusion about message passing between the tasks
Date: Sun, 26 Oct 2014 13:36:09 -0700
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Date: 2014-10-26T13:36:09-07:00
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On 10/26/2014 01:31 PM, Robert A Duff wrote:
> 
> ...but the other way around isn't true.  Here's Tucker's example that
> convinced me that some sort of "pragma Passive(Buffer_Task);" wasn't
> going to cut it.  Write a PO a that is in one of two states,
> "accepting calls to Entry_1" and "accepting calls to Entry_2",
> never in both states at the same time, and never in neither state
> (as observed by callers).  Pretty easy.  With rendezvous, not so
> much.

That seems pretty straightforward, whether with a PO or a passive task. Is there
some complication I'm missing?

-- 
Jeff Carter
"Why, the Mayflower was full of Fireflies, and a few
horseflies, too. The Fireflies were on the upper deck,
and the horseflies were on the Fireflies."
Duck Soup
95