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From: "Beard, Frank" <beardf@spawar.navy.mil>
Newsgroups: comp.lang.ada
Subject: RE: How can I avoid Using a Semaphore? (long)
Date: Wed, 7 Feb 2001 16:55:13 -0500
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Date: 2001-02-07T16:55:13-05:00

So, according to section 9.5.1, doing I/O during a protected operation
is NOT potentially blocking?

For example, would it be permissible to do the following:

   protected body Protected_Something is

      procedure Do_Something (status : out Status_Type) is
      begin

         Ada.Text_Io.Open(file => file,
                          mode => Ada.Text_Io.IN_FILE,
                          name => "status_file",
                          form => "");

         Status_Io.Get(file => file,
                       item => status);

         Ada.Text_Io.Close(file);

      end Do_Something;

   end Protected_Something;

Frank

-----Original Message-----
From: DuckE [mailto:nospam_steved94@home.com]
Sent: Friday, February 02, 2001 10:01 PM
To: comp.lang.ada@ada.eu.org
Subject: Re: How can I avoid Using a Semaphore? (long)


On reviewing 9.5.1 of the RM I see that this is definitely NOT the case.  In
9.5.1 the specific operations that are considered potentially blocking are
listed.