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=unavailable autolearn_force=no version=3.4.4 Path: border1.nntp.dca1.giganews.com!border2.nntp.dca1.giganews.com!nntp.giganews.com!newspeer1.nac.net!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "J-P. Rosen" Newsgroups: comp.lang.ada Subject: Re: can someone help me with this code (explanation) Date: Fri, 26 Sep 2014 07:06:38 +0200 Organization: A noiseless patient Spider Message-ID: References: <6e1f86e6-c17a-428e-bb19-460c5ba26c8a@googlegroups.com> <1ec7272d-de7f-43dd-be30-009c437011de@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Injection-Date: Fri, 26 Sep 2014 05:06:40 +0000 (UTC) Injection-Info: mx05.eternal-september.org; posting-host="2b3884a634d8f846e0712b4e3a92507a"; logging-data="23029"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19ksJD8fToGWhyVUujLWrqD" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 In-Reply-To: Cancel-Lock: sha1:NFRL1STM0IUU2aZ6WS+IMNnISeg= Xref: number.nntp.dca.giganews.com comp.lang.ada:189160 Date: 2014-09-26T07:06:38+02:00 List-Id: Le 25/09/2014 22:10, Niklas Holsti a écrit : > To make task-safe use of Ada.Text_IO, it should be wrapped in some way > to ensure that only one task calls it at a time. For example, you could > write a task with an entry like Put_Line (Message : in String) and an > accept statement that does Ada.Text_IO.Put_Line (Message). But a > protected-object wrapper is probably better for uses where I/O > performance (latency) is not critical. Except that IO operations are potentially blocking, and thus not allowed in protected operations (although they are known to work with Gnat). -- J-P. Rosen Adalog 2 rue du Docteur Lombard, 92441 Issy-les-Moulineaux CEDEX Tel: +33 1 45 29 21 52, Fax: +33 1 45 29 25 00 http://www.adalog.fr