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=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!feeder.eternal-september.org!news.glorb.com!Xl.tags.giganews.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.earthlink.com!news.earthlink.com.POSTED!not-for-mail NNTP-Posting-Date: Tue, 24 Feb 2015 21:01:33 -0600 From: Dennis Lee Bieber Newsgroups: comp.lang.ada Subject: Re: silly ravenscar question Date: Tue, 24 Feb 2015 22:01:35 -0500 Organization: IISS Elusive Unicorn Message-ID: <88eqeallhifa2f52vb0mhcljn9ag4ri68a@4ax.com> References: <8e30f54c-81c4-4861-897c-bb6c563c76e8@googlegroups.com> <87wq37d12w.fsf@adaheads.sparre-andersen.dk> <7ae5ec06-f5e3-4c5f-ac95-58b4bf1256a0@googlegroups.com> X-Newsreader: Forte Agent 6.00/32.1186 X-No-Archive: YES MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 76.249.24.110 X-Trace: sv3-14O6NQsaXY0pZTK8SFEW0RppDaobry5enAblArgvBTEHWLHXm2ySsl3cxpqWOuGqEd3hCRmRmM/fzrU!r6MZpUZVRxZuGkAi7PshuW+KyTgRjUqTA0BcGsFHJjRpkttyEJmpKTdFmrSAWHm9pu6G/QzrAwEo!w+x4z7usMMEF2mZdP0vq13/O3QA= 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: 1.3.40 X-Original-Bytes: 2276 Xref: news.eternal-september.org comp.lang.ada:25028 Date: 2015-02-24T22:01:35-05:00 List-Id: On Tue, 24 Feb 2015 16:52:02 +0000, Simon Wright declaimed the following: > >>From a hobbyist point of view, the Ravenscar approach to _tasking_ makes >a lot of sense, because full Ada tasking is very hairy (the restricted >tasking in GNAT's Ravenscar is hairy enough). > My brain must work differently... "From a hobbyist point of view" I find Ravenscar to be "hairy"... As a hobbyist, I'm not usually thinking of hard real-time response of an avionics system (NO dynamic memory allocations after system initialization, for example). Trying to manage the restrictions on entries of Ravenscar is something I can't easily conceive of. Heck -- the non-Ravenscar restriction of no-blocking-calls inside a protected object is a bit of a problem for me. But then, I also seem to be on the "threading is easier than async dispatching" in the Python group. -- Wulfraed Dennis Lee Bieber AF6VN wlfraed@ix.netcom.com HTTP://wlfraed.home.netcom.com/