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=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 Path: border1.nntp.dca3.giganews.com!border3.nntp.dca.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!goblin2!goblin.stu.neva.ru!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Ada advocacy Date: Wed, 28 Aug 2013 09:45:25 +0200 Organization: cbb software GmbH Message-ID: <1qdu9om2qiq0c.15aux2czbq8y2$.dlg@40tude.net> References: <19595886.4450.1332248078686.JavaMail.geo-discussion-forums@vbbfy7> <2012032020582259520-rblove@airmailnet> <12ee9bc5-3bdf-4ac0-b805-5f10b3859ff4@googlegroups.com> <6c58fae4-6c34-4d7a-ab71-e857e55897c0@x6g2000vbj.googlegroups.com> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: IenaDxMXK2hi7fvYcb+MlQ.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 X-Original-Bytes: 2296 Xref: number.nntp.dca.giganews.com comp.lang.ada:183177 Date: 2013-08-28T09:45:25+02:00 List-Id: On Tue, 27 Aug 2013 23:25:01 +0200, J-P. Rosen wrote: > Le 27/08/2013 15:34, Yannick Duchêne (Hibou57) a écrit : >> Why did you said “no big loss” about the rendez‑vous? What's your known >> issues with rendez‑vous? I never used concurrency a lot until now, so >> that's really a question, because I may (or may not, I still don't >> know) have to use it. > It's a one person's opinion, that I certainly don't share. > > Rendezvous are a high level concept, easy to use because close to what > you do in real life. Only those who think close to the bare machine have > issues with rendezvous. And don't forget a big plus of rendezvous over > protected objects: termination is (can be) automatic, without devising > some complicated handshaking. Another plus is that rendezvous need not to be non-blocking and may include lengthy actions. Rendezvous could be easily extended on a distributed system, which would be practically impossible for protected objects. I think that for distributed and massively parallel systems rendezvous clearly beat protected objects. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de