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
X-Google-Thread: a07f3367d7,ff1f0403676a2300
X-Google-Attributes: gida07f3367d7,public,usenet
X-Google-NewGroupId: yes
X-Google-Language: ENGLISH,ASCII-7-bit
Received: by 10.180.106.199 with SMTP id gw7mr626607wib.0.1345237646387;
        Fri, 17 Aug 2012 14:07:26 -0700 (PDT)
Path: 
 n2ni181726861win.0!nntp.google.com!feeder1.cambriumusenet.nl!feed.tweaknews.nl!94.232.116.11.MISMATCH!feed.xsnews.nl!border-1.ams.xsnews.nl!plix.pl!newsfeed2.plix.pl!217.153.128.51.MISMATCH!nf1.ipartners.pl!ipartners.pl!news.nask.pl!news.nask.org.pl!news.unit0.net!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!gegeweb.org!aioe.org!.POSTED!not-for-mail
From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Ada Networking (General/Design)
Date: Tue, 14 Aug 2012 12:14:01 +0200
Organization: cbb software GmbH
Message-ID: <5i0visgzog1.6g1g6fnuefla$.dlg@40tude.net>
References: <19sij6rw9nhaa.164mz6sr816wk.dlg@40tude.net>
 <k0bo2a$ebg$1@speranza.aioe.org>
Reply-To: mailbox@dmitry-kazakov.de
NNTP-Posting-Host: FbOMkhMtVLVmu7IwBnt1tw.user.speranza.aioe.org
Mime-Version: 1.0
X-Complaints-To: abuse@aioe.org
User-Agent: 40tude_Dialog/2.0.15.1
X-Notice: Filtered by postfilter v. 0.8.2
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Date: 2012-08-14T12:14:01+02:00
List-Id: <comp.lang.ada>

On Mon, 13 Aug 2012 20:28:58 +0000 (UTC), tmoran@acm.org wrote:

>> For non-blocking I/O there should be a way to have a pseudo-task ran by the
>> events on the socket, rather than scheduled.
>   That's what overidable procedures When_Connect, When_Readable,
> When_Disconnect, etc are for.  They are called when the event occurs.

No, that is upside-down. The point is to write I/O code as if it were
synchronous and half-duplex:

   send
   receive
   process
   send
   ...

Compare it with Ada task. You write a task as if it didn't share the
processor, you don't hook at timer interrupts.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de