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Newsgroups: comp.lang.ada
Date: Tue, 17 Jul 2018 14:56:23 -0700 (PDT)
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Subject: Re: How to run a GNAT program without starting a terminal session
From: Jerry <list_email@icloud.com>
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Xref: reader02.eternal-september.org comp.lang.ada:53883
Date: 2018-07-17T14:56:23-07:00
List-Id: <comp.lang.ada>

On Tuesday, July 17, 2018 at 2:12:54 PM UTC-7, Shark8 wrote:
> On Tuesday, July 17, 2018 at 3:07:30 PM UTC-6, Jerry wrote:
> >=20
> > I'm not sure exactly what is meant by a daemon but I think it is a face=
less program that runs in the background over an extended period of time. M=
ine might satisfy that definition--it is faceless and runs until all of the=
 several "delay-beep" pairs are executed, then quits.
>=20
> My recommendation: use Ada's timing and tasking features.
> A lot of the cases I've seen where daemons are used/needed are because th=
e language [PHP in this case] didn't have any notion of TASKs and DELAYs --=
 rather frustrating to come across when it's so trivially easy in Ada.

Thanks for that idea. I've never used a task before but I modified a little=
 program from the new book, Introduction to Ada Programming, 2nd ed., as fo=
llows:


procedure Hello_World_Task is
    task type Hello_Task;
   =20
    task body Hello_Task is
    begin
            delay 4.0;
    end Hello_Task;
       =20
    Task_1 : Hello_Task;
begin
    null;
end Hello_World_Task;


It still runs in the terminal.

Jerry