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=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD,
	FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4
X-Google-Thread: 103376,7e490a18b9688bd9
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII
Received: by 10.68.44.102 with SMTP id d6mr553917pbm.9.1316054410352;
        Wed, 14 Sep 2011 19:40:10 -0700 (PDT)
Path: 
 m9ni6522pbd.0!nntp.google.com!news1.google.com!postnews.google.com!s12g2000yqm.googlegroups.com!not-for-mail
From: Alexander Korolev <antonovkablog@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Stream_Element_Array
Date: Wed, 14 Sep 2011 19:33:00 -0700 (PDT)
Organization: http://groups.google.com
Message-ID: 
 <32f9a1c1-429f-4cfb-bf58-f0fc84ad9fd3@s12g2000yqm.googlegroups.com>
References: 
 <edfcce02-7d80-4186-a281-c8a4983a3efd@p25g2000pri.googlegroups.com>
 <m2boun4jah.fsf@pushface.org>
 <cedfbdf9-5ca7-4159-a4fc-d7b6331d1395@p37g2000prp.googlegroups.com>
 <1e6rw4vto3ldb.i8d7fxixapx4.dlg@40tude.net> <m239fz4cpy.fsf@pushface.org>
 <b7yqos9wk4fn.15kuyzgqrkhge.dlg@40tude.net>
 <ae7ed905-c866-45a8-acbd-0e0eebc29f83@x29g2000prh.googlegroups.com>
 <28u4e86fk8gn$.ialexttobgr0$.dlg@40tude.net>
 <276b8d0a-5b3c-4559-a275-98620657cc2f@s30g2000pri.googlegroups.com>
 <ju5wgjs11mug$.4ohgki30bvpf.dlg@40tude.net>
NNTP-Posting-Host: 96.49.119.210
Mime-Version: 1.0
X-Trace: posting.google.com 1316054410 31931 127.0.0.1 (15 Sep 2011 02:40:10
 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Thu, 15 Sep 2011 02:40:10 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: s12g2000yqm.googlegroups.com; posting-host=96.49.119.210;
 posting-account=9aAl4woAAACPkuvNJOQxyBXxG_5lfu_0
User-Agent: G2/1.0
X-Google-Web-Client: true
X-Google-Header-Order: HUARLECNK
X-HTTP-UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_5; ru-ru)
 AppleWebKit/533.18.1 (KHTML,
 like Gecko) Version/5.0.2 Safari/533.18.5,gzip(gfe)
Xref: news1.google.com comp.lang.ada:17973
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Date: 2011-09-14T19:33:00-07:00
List-Id: <comp.lang.ada>

On Sep 15, 12:13=A0am, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
wrote:
> On Wed, 14 Sep 2011 10:16:09 -0700 (PDT), Alexander Korolev wrote:
> > I've been advised and that worked out for many in few cases to use
> > Volatile_Streams.Memory_Resident_Stream.
>
> This is not what you need. It is a stream backed by the memory. I also
> implemented such, backed by a String object, that is when you write, you =
do
> into the string, when you read then from the string.
>
> In your case the other end is not the memory but the wire. This is what
> Serial_Port of GNAT.Serial_Communications is, an implementation of stream=
.
>
> So you simply derive or aggregate a new type from/into it, place there an
> output buffer of Stream_Element_Array of the maximal message size, and
> Stream_Element_Array for the input, usually just one element length.
>
> The pattern is:
>
> =A0 =A0Root_Stream_Type -- abstract stream
> =A0 =A0 =A0|
> =A0 =A0Serial_Port -- concrete stream, transport layer
> =A0 =A0 =A0|
> =A0 =A0your type -- specific protocol implementation
>
> --
> Regards,
> Dmitry A. Kazakovhttp://www.dmitry-kazakov.de

Dmitry, I've sent an email for your attention. Please review.
Thanks, Alexander.