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From: Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>
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Subject: Re: Class with task destructor
Date: Thu, 01 Dec 2011 22:30:36 -0700
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Date: 2011-12-01T22:30:36-07:00
List-Id: <comp.lang.ada>

On 12/01/2011 05:50 PM, Randy Brukardt wrote:
>
> In any case, what a particular target can do is not that relevant to what
> the language design can do. Ada 95 tried to add a multi-way entry call, and
> every implementer who studied it ended up reporting that the implementation
> would essentially end up being some form of polling. Which is not what
> anyone was hoping for. It got dropped from Ada 95.

Ada 95 did add asynchronous transfer of control, which does allow an entry call 
as a trigger, and anything in the "then abort" part, including an entry call:

select
    Entry_Call_1;
then abort
    Entry_Call_2;
end select;

These can be nested as deeply as desired, so it seems that Ada 95 did 
effectively add a multi-way entry call.

-- 
Jeff Carter
"I wave my private parts at your aunties."
Monty Python & the Holy Grail
13