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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Finalization of library level tasks
Date: Mon, 16 Apr 2018 17:15:55 +0200
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Xref: reader02.eternal-september.org comp.lang.ada:51544
Date: 2018-04-16T17:15:55+02:00
List-Id: <comp.lang.ada>

On 16/04/2018 11:19, AdaMagica wrote:

> Terminate is called by (hm, dunno, a task supervisor) when it is clear that there are no more clients who can call any of the entries, so the task has nothing more to do. A delay or else-statement would be a contradiction.

When the task goes out of scope you cannot continue without terminating 
the task.

> Thus your design seems wrong if you need something like this.
> 
>> If there were a way to check within the
>> task if its completion has been requested your solution would work.
>> Terminate should have been a normal predefined entry:
>>
>>      task body T is
>>      begin
>>         select
>>            accept T'Terminate;
>>            exit;
>>         or ...
> 
> This would lead to a very different tasking feature - a completely different Ada you every now and then seem to propose.

I don't know how this is that much different. You cannot terminate task 
unconditionally or instantly because local object must be finalized on 
the context of the task.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de