From: bobduff@world.std.com (Robert A Duff)
Subject: Re: Program_Error from library level task declaration...
Date: 1996/07/31
Date: 1996-07-31T00:00:00+00:00 [thread overview]
Message-ID: <DvEsMq.I48@world.std.com> (raw)
In-Reply-To: 31FE562A.237C228A@escmail.orl.mmc.com
>Dale Stanbrough wrote:
>> I've tried to create a library level semaphore to be used
>> for screen locking. The semaphore is the standard implementation
>> using a task (yes, I know a protected object would be better).
>>
>> The declaration is...
>>
>> with semaphores; use semaphores;
>> package screen_lock is
>>
>> screen:semaphore;
>>
>> end screen_lock;
It looks like you're activating a task whose body is not yet elaborated
(see 3.11(12)). You should put pragma Preelaborate or Elaborate_Body on
the Semaphores package. If that's illegal (can't tell without seeing
it), put pragma Elaborate_All(Semaphores) on the Screen_Lock package.
- Bob
prev parent reply other threads:[~1996-07-31 0:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-07-27 0:00 Program_Error from library level task declaration Dale Stanbrough
1996-07-30 0:00 ` Theodore E. Dennison
1996-07-31 0:00 ` Robert A Duff [this message]
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