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,FREEMAIL_FROM autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 10.43.101.133 with SMTP id da5mr737087icc.20.1383735944990; Wed, 06 Nov 2013 03:05:44 -0800 (PST) X-Received: by 10.49.96.162 with SMTP id dt2mr23953qeb.29.1383735944960; Wed, 06 Nov 2013 03:05:44 -0800 (PST) Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!news.glorb.com!i2no12834916qav.0!news-out.google.com!9ni12508qaf.0!nntp.google.com!i2no12834903qav.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Wed, 6 Nov 2013 03:05:44 -0800 (PST) Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=158.110.27.77; posting-account=9fwclgkAAAD6oQ5usUYhee1l39geVY99 NNTP-Posting-Host: 158.110.27.77 User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <19b9cc6b-28a4-45e4-939c-7720ae5666b9@googlegroups.com> Subject: Question about asynchronous calls From: mockturtle Injection-Date: Wed, 06 Nov 2013 11:05:44 +0000 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Xref: news.eternal-september.org comp.lang.ada:17586 Date: 2013-11-06T03:05:44-08:00 List-Id: Dear all, I am scheduled to give an introductory talk (45 min) about Ada at the next = "Open Source Day" here in Udine. I was thinking about giving an overview o= f the language, emphasizing those parts that are unique (or almost unique) = to Ada, with the objective of making people curious.=20 Among other things, I am planning about saying something about the existenc= e of Annex E for distributed systems. =20 While reading section "E.4.1. Asynchronous Remote Calls" of our beloved RM,= I got a doubt: as I understand the language does not define any specific m= echanism for getting the "return value" of an asynchronous call; if I want = the result back I must implement the "back channel" by myself (e.g., a call= back or a polling function of type "are we there yet?" [to be said with chi= ldish voice] :-). Am I right? Thank you for your help Riccardo