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 10.67.15.2 with SMTP id fk2mr14840696pad.14.1411716987270; Fri, 26 Sep 2014 00:36:27 -0700 (PDT) X-Received: by 10.140.27.166 with SMTP id 35mr169336qgx.5.1411716987222; Fri, 26 Sep 2014 00:36:27 -0700 (PDT) Path: border2.nntp.dca1.giganews.com!nntp.giganews.com!a13no3796101igq.0!news-out.google.com!i10ni37qaf.0!nntp.google.com!w8no313447qac.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Fri, 26 Sep 2014 00:36:27 -0700 (PDT) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=195.182.34.201; posting-account=bMuEOQoAAACUUr_ghL3RBIi5neBZ5w_S NNTP-Posting-Host: 195.182.34.201 References: <20a06909-d123-4c51-8185-057d50e50186@googlegroups.com> <2fe842c3-1e5c-4fd7-89be-515e86c8aeb4@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <839d7364-8e5d-4273-bd96-d4452e2dc817@googlegroups.com> Subject: Re: On intended use cases of the distributed annex From: Maciej Sobczak Injection-Date: Fri, 26 Sep 2014 07:36:27 +0000 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Xref: number.nntp.dca.giganews.com comp.lang.ada:189162 Date: 2014-09-26T00:36:27-07:00 List-Id: W dniu czwartek, 25 wrze=C5=9Bnia 2014 17:02:07 UTC+2 u=C5=BCytkownik Brad = Moore napisa=C5=82: > Not quite true that all the nodes need to be written in Ada. I have=20 > used DSA to send C++ objects to C++ applications (or at least objects of= =20 > C++ classes that are derived from Ada types), and as well had C++=20 > applications remotely interacting with each other C++ and other Ada=20 > applications using the DSA. This sounds interesting. Can you give a bit more details on this? Was it re= lated to the DSA implementation that actually used CORBA under the hood? Wa= s it necessary to extract some interface definition files from Ada specs? Or did you just reverse-engineered the DSA wire protocol that was in use? Was your solution immune to compiler upgrades? And so on - lot's of questions. :-) > I also appreciate that the DSA is more closely integrated with the=20 > compiler, allowing the compiler to check and catch problems that a=20 > library only approach does not provide. Was it also closely integrated with the C++ nodes? ;-) The "close integration with the compiler" makes most sense when there is a = single build process for all the nodes. Otherwise there is no guarantee tha= t individual nodes are compiled with the same specs and the whole notion of= static type safety goes down the drain. This is particularly relevant in b= igger systems where distinct nodes are developed by different teams and/or = are deployed at different time schedules. More on this here: http://www.inspirel.com/articles/What_Is_Wrong_With_IDL.html Still, I'm very much interested in your Ada/C++ integration over DSA. --=20 Maciej Sobczak * http://www.msobczak.com * http://www.inspirel.com