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-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,1b417df64012e6d3 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-03-17 12:11:04 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!news.huji.ac.il!not-for-mail From: "Ehud Lamm" Newsgroups: comp.lang.ada Subject: Re: tasks, protected types and entries Date: Sun, 17 Mar 2002 22:06:55 +0200 Organization: Ehud Lamm Message-ID: References: <%12l8.9656$%_6.1717935@news11-gui.server.ntli.net> <3C94F235.80C7166A@adaworks.com> NNTP-Posting-Host: di4-28.dialin.huji.ac.il X-Trace: news.huji.ac.il 1016395735 6734 132.64.14.28 (17 Mar 2002 20:08:55 GMT) X-Complaints-To: abuse@news.huji.ac.il NNTP-Posting-Date: Sun, 17 Mar 2002 20:08:55 +0000 (UTC) X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Xref: archiver1.google.com comp.lang.ada:21377 Date: 2002-03-17T22:06:55+02:00 List-Id: "Richard Riehle" wrote in message news:3C94F235.80C7166A@adaworks.com... > > There are no guards on subprograms (procedures and functions). If there > were, they would be called pre-conditions. In fact, protected entry > barriers, and task entry guards, are simply a variation-on-the-theme of > pre-conditions. > BTW: The literature often uses the terms "behavioral contract" and "synchronization contract" to distinguish these two types of contracts. Ehud Lamm