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=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD, FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,385c146dd3112519 X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!postnews.google.com!x22g2000yqx.googlegroups.com!not-for-mail From: Maciej Sobczak Newsgroups: comp.lang.ada Subject: Re: Private or public task ? Date: Wed, 10 Feb 2010 00:17:55 -0800 (PST) Organization: http://groups.google.com Message-ID: References: <38a0a3f9-b4a0-48f3-98c9-63b03fe03aca@q4g2000yqm.googlegroups.com> NNTP-Posting-Host: 137.138.182.236 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: posting.google.com 1265789875 11934 127.0.0.1 (10 Feb 2010 08:17:55 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Wed, 10 Feb 2010 08:17:55 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: x22g2000yqx.googlegroups.com; posting-host=137.138.182.236; posting-account=bMuEOQoAAACUUr_ghL3RBIi5neBZ5w_S User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7,gzip(gfe),gzip(gfe) Xref: g2news1.google.com comp.lang.ada:9070 Date: 2010-02-10T00:17:55-08:00 List-Id: On 9 Lut, 15:26, Jean-Pierre Rosen wrote: > There are two kinds of blockings: bounded and unbounded. The idea is > that when computing a time budget, you can account for bounded > blockings, but not unbounded ones. > The "potentially blocking" phrase should be understood as really meaning > unbounded. Well, I know what you try to convey, but there are traps: delay Some_Static_Constant; Is it bounded or unbounded? As far as WCET (or any other time-based analysis) goes, the above can be accounted for statically. Still, it is a no-no within any protected operation. -- Maciej Sobczak * www.msobczak.com * www.inspirel.com Database Access Library for Ada: www.inspirel.com/soci-ada