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 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: 103376,703c4f68db81387d
X-Google-Thread: 109fba,703c4f68db81387d
X-Google-Thread: 115aec,703c4f68db81387d
X-Google-Thread: f43e6,703c4f68db81387d
X-Google-Attributes: gid103376,gid109fba,gid115aec,gidf43e6,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news1.google.com!news1.google.com!proxad.net!newsfeed.stueberl.de!uucp.gnuu.de!newsfeed.arcor.de!news.arcor.de!not-for-mail
Date: Tue, 08 Mar 2005 21:54:03 +0100
From: Georg Bauhaus <bauhaus@futureapps.de>
Organization: future apps GmbH
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US;
 rv:1.7.5) Gecko/20050105 Debian/1.7.5-1
X-Accept-Language: en
MIME-Version: 1.0
Newsgroups: comp.lang.ada,comp.lang.c++,comp.realtime,comp.software-eng
Subject: Re: Teaching new tricks to an old dog (C++ -->Ada)
References: <4229bad9$0$1019$afc38c87@news.optusnet.com.au>
   <1110032222.447846.167060@g14g2000cwa.googlegroups.com>
   <871xau9nlh.fsf@insalien.org>
   <3SjWd.103128$Vf.3969241@news000.worldonline.dk>
   <87r7iu85lf.fsf@insalien.org>   <1110052142.832650@athnrd02>
   <d0dkq6$781$1@titan.btinternet.com>
 <1110284070.410136.205090@o13g2000cwo.googlegroups.com>
 <395uqaF5rhu2mU1@individual.net> <112rs0bdr2aftdf@corp.supernews.com>
 <1inxxr988rxgg$.1w9dedak41k89.dlg@40tude.net>
 <112s1r0rf0o8nca@corp.supernews.com>
In-Reply-To: <112s1r0rf0o8nca@corp.supernews.com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Message-ID: <422e108b$0$26543$9b4e6d93@newsread4.arcor-online.net>
NNTP-Posting-Date: 08 Mar 2005 21:52:27 MET
NNTP-Posting-Host: f82e0dad.newsread4.arcor-online.net
X-Trace: 
 DXC=Tg3_4Nm0IBgTE46CRO0njm:ejgIfPPlddjW\KbG]kaMhGSi?jHD8GO`jKndh@]XiHaUUng9_FXZ=c>:=P9Ihe`Bh@Z?dZ]MOide
X-Complaints-To: abuse@arcor.de
Xref: g2news1.google.com comp.lang.ada:8884 comp.lang.c++:44655
 comp.realtime:1083 comp.software-eng:4639
Date: 2005-03-08T21:52:27+01:00
List-Id: <comp.lang.ada>

CTips wrote:
> Dmitry A. Kazakov wrote:

>> type Object is ...;
>> type Object_Ptr is access Object;
>> for Object_Ptr'Storage_Pool use My_Arena;
>>
>> Here you are:
>>
>> Ptr : Object_Ptr := new Object; -- This allocates it in My_Arena
> 
> 
> And how is My_Arena defined? Is it just a blob of memory? Or is it a 
> "class" that can invoke sbrk (or whatever) when it needs to?

My_Arena is a storage pool, storage pool is a term
defined by the language.

> Will that generate:
>   L0:
>       lwlock temp,&Value
>       add    temp,temp,1
>       stwcond temp,&Value
>       if( failed ) goto L0;
> or will it generate something much more heavy-weight.

For how many concurrently executing threads
of control, each invoking the incrementing function,
will this work? (Without any addition that is, as in
the Ada example)

Georg