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
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail
From: =?UTF-8?B?QmrDtnJuIEx1bmRpbg==?= <b.f.lundin@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Exclusive file access
Date: Sat, 05 Sep 2015 17:52:18 +0200
Organization: A noiseless patient Spider
Message-ID: <msf305$gd1$1@dont-email.me>
References: <eec18573-876b-4151-b13a-15a103bba30e@googlegroups.com>
	<ed3129f2-7c95-4ad9-ba0a-a8c7e4bfe6ae@googlegroups.com>
	<23506b3b-57f4-4e74-947a-c0655f15d198@googlegroups.com>
 <lyd1y1yh3y.fsf@pushface.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Injection-Date: Sat, 5 Sep 2015 15:50:29 +0000 (UTC)
Injection-Info: mx02.eternal-september.org;
 posting-host="8345e58a26fd519be507aa0186b6063e";
	logging-data="16801"; mail-complaints-to="abuse@eternal-september.org";
	posting-account="U2FsdGVkX1+vRWw+RljoNXlqd+Me7POx"
User-Agent: Mozilla/5.0 (X11; Linux x86_64;
 rv:31.0) Gecko/20100101 Icedove/31.8.0
In-Reply-To: <lyd1y1yh3y.fsf@pushface.org>
Cancel-Lock: sha1:/4R9m0AdC2u7zgqr6DToZJvwH7E=
Xref: news.eternal-september.org comp.lang.ada:27712
Date: 2015-09-05T17:52:18+02:00
List-Id: <comp.lang.ada>

On 2015-09-01 23:17, Simon Wright wrote:
> brbarkstrom@gmail.com writes:
> 
>> I'm still not sure why the alternate processes you're referring to
>> wouldn't be Ada Tasks.
> 
> Because they aren't?
> 
> If in one terminal I say "./a_program" then a_program is a process
> running under the OS. It may contain many Ada tasks. If in another
> terminal I say "./another_program" then another_program is another
> process running under the OS, which may contain a whole lot of Ada
> tasks, which know nothing about a_program's tasks. OP wants to ensure
> exclusive access to a file between the two processes.
> 


Or it can be notepad.exe ...
Or anything else that is NOT a process written in ada

-- 
--
Björn