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,ff18b3dfbae1e1d6 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-08-28 06:38:06 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!canoe.uoregon.edu!arclight.uoregon.edu!wn4feed!worldnet.att.net!204.71.34.3!newsfeed.cwix.com!prodigy.com!newsmst01.news.prodigy.com!prodigy.com!postmaster.news.prodigy.com!newssvr30.news.prodigy.com.POSTED!not-for-mail From: "Pat Rogers" Newsgroups: comp.lang.ada References: <3d6cce03.19310466@news.demon.co.uk> Subject: Re: Ada as a real time language X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-ID: NNTP-Posting-Host: 208.191.182.164 X-Complaints-To: abuse@prodigy.net X-Trace: newssvr30.news.prodigy.com 1030541847 ST000 208.191.182.164 (Wed, 28 Aug 2002 09:37:27 EDT) NNTP-Posting-Date: Wed, 28 Aug 2002 09:37:27 EDT Organization: Prodigy Internet http://www.prodigy.com X-UserInfo1: FKPO@MC@@S@USVT^ORHL_IXBUSXHQD\MNPWZKB]MPXHNDQUBLNTC@AWZWDXZXQ[K\FFSKCVM@F_N_DOBWVWG__LG@VVOIPLIGX\\BU_B@\P\PFX\B[APHTWAHDCKJF^NHD[YJAZMCY_CWG[SX\Y]^KC\HSZRWSWKGAY_PC[BQ[BXAS\F\\@DMTLFZFUE@\VL Date: Wed, 28 Aug 2002 13:37:27 GMT Xref: archiver1.google.com comp.lang.ada:28492 Date: 2002-08-28T13:37:27+00:00 List-Id: "John McCabe" wrote in message news:3d6cce03.19310466@news.demon.co.uk... > Correct me if I'm wrong, but I think the Ravenscar profile has > something to do with HRT systems. If you look on the web for Ada and > Ravenscar you might find something useful. The Ravenscar Profile is appropriate for hard real-time systems, in and of itself, but it is especially appropriate for systems that involve the kinds of analyses required for high-integrity applications. As a subset of the language intended for safety-critical applications it is not necessarily optimal for more general real-time designs, although the restrictions it imposes are reasonable for small footprint, high performance, hard real-time systems. Don't get me wrong -- I'm an advocate of Ravenscar -- I'm just saying that Ravenscar is not the sum and total of Ada's real-time capabilities. Since the OP was asking in the most general sense I thought it best to provide a more precise description of Ravenscar's domain. -- Patrick Rogers Consulting and Training in: http://www.classwide.com Real-Time/OO Languages progers@classwide.com Hard Deadline Schedulability Analysis (281)648-3165 Software Fault Tolerance