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: buffer2.nntp.dca1.giganews.com!border2.nntp.dca1.giganews.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!newspeer1.nac.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.fsmpi.rwth-aachen.de!news-1.dfn.de!news.dfn.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Niklas Holsti Newsgroups: comp.lang.ada Subject: Re: can someone help me with this code (explanation) Date: Fri, 26 Sep 2014 19:44:05 +0300 Organization: Tidorum Ltd 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=windows-1252 Content-Transfer-Encoding: 7bit X-Trace: individual.net 9OuibLDCTnYsmsJ+bytkJwi4BDFAhjeNJjl5oGgXDOzAx3h01V Cancel-Lock: sha1:hdo2U6e20cJHen4qTyjB7nuGl/k= User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 In-Reply-To: Xref: number.nntp.dca.giganews.com comp.lang.ada:189177 Date: 2014-09-26T19:44:05+03:00 List-Id: On 14-09-26 01:27 , Jeffrey Carter wrote: > On 09/25/2014 01:10 PM, Niklas Holsti wrote: >> >> 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 I/O is potentially blocking, and so cannot appear in a protected > operation, meaning one needs a task one way or another. Yes. Apologies for my error. -- Niklas Holsti Tidorum Ltd niklas holsti tidorum fi . @ .