From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,7d5642dc1158588b X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news1.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local01.nntp.dca.giganews.com!nntp.scarlet.biz!news.scarlet.biz.POSTED!not-for-mail NNTP-Posting-Date: Mon, 29 Jan 2007 13:53:35 -0600 From: Ludovic Brenta Newsgroups: comp.lang.ada Subject: Re: Ravenscar - program termination References: Date: Mon, 29 Jan 2007 20:53:34 +0100 Message-ID: <87zm81txs1.fsf@ludovic-brenta.org> User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux) Cancel-Lock: sha1:KGPzN5BUrj3sdAFoB8DgywDjeQs= MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii NNTP-Posting-Host: 62.235.247.176 X-Trace: sv3-LrlvkjGPX9aSzz4GdA53LmYppIRvlrzUt2NMHjC3p2L4q5cDT+GLfBdxVIRr6jzKj5PNYEMvkv3YMAB!TmkCjXsVIBM4cWZH24QXMh4RwQpvNkB665BuqJRYgmW+qCbEmU/uDeHgkCzqn0SQoxGwqIG1vRY= X-Complaints-To: abuse@scarlet.be X-DMCA-Complaints-To: abuse@scarlet.biz X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.32 Xref: g2news2.google.com comp.lang.ada:8686 Date: 2007-01-29T20:53:34+01:00 List-Id: Maciej Sobczak writes: > The N442 document states that Ravenscar profile forbids task termination. > I understand that task termination is the fact of a task finishing its > job and completing. > > Do I understand correctly that Ravenscar programs are by definition > running forever? What about programs that are expected to finish? Yes, it is my understanding as well, and I'm happy with that. I remember being impressed with Ada because you could write an infinite loop without a faked up condition. The idea being that in Ada the typical infinite loop would normally be terminated by detonation. -- Larry Wall The Ravenscar profile is specifically targeted at high-integrity systems, where infinite loops are, I think, the norm. -- Ludovic Brenta.