From: Jean-Pierre Rosen <rosen@adalog.fr>
Subject: Re: protected type interrupts
Date: Fri, 25 Aug 2006 08:48:17 +0200
Date: 2006-08-25T08:48:17+02:00 [thread overview]
Message-ID: <mf6mce.8k2.ln@hunter.axlog.fr> (raw)
In-Reply-To: <lXqHg.151559$1i1.129101@attbi_s72>
Jeffrey R. Carter a �crit :
> If a call to a procedure or entry of a protected object changes the
> barrier on another entry to True, the thread of control that changed the
> barrier is allowed to execute the newly open entry on behalf of the task
> that called it. So the entry is not being executed in the interrupt
> handler, but by the thread of control that called the interrupt handler.
>
But since you specified a priority for the PO (and assuming
priority_ceiling), you still execute at interrupt priority. Depending on
the hardware and how priorities are managed, this may delay or hide
actual interrupts.
--
---------------------------------------------------------
J-P. Rosen (rosen@adalog.fr)
Visit Adalog's web site at http://www.adalog.fr
next prev parent reply other threads:[~2006-08-25 6:48 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-24 14:47 protected type interrupts REH
2006-08-24 15:39 ` Jean-Pierre Rosen
2006-08-24 16:23 ` REH
2006-08-24 18:15 ` Adam Beneschan
2006-08-24 19:16 ` REH
2006-08-24 21:16 ` Adam Beneschan
2006-08-24 21:39 ` REH
2006-08-25 6:45 ` Jean-Pierre Rosen
2006-08-24 23:55 ` Jeffrey R. Carter
2006-08-25 6:42 ` Jean-Pierre Rosen
2006-08-24 23:47 ` Jeffrey R. Carter
2006-08-25 6:38 ` Jean-Pierre Rosen
2006-08-24 20:11 ` Simon Wright
2006-08-24 23:50 ` Jeffrey R. Carter
2006-08-25 6:48 ` Jean-Pierre Rosen [this message]
2006-08-25 11:33 ` REH
2006-08-25 17:27 ` Jean-Pierre Rosen
2006-08-25 20:57 ` Jeffrey R. Carter
2006-08-25 23:17 ` REH
2006-08-26 6:38 ` Jeffrey R. Carter
2006-08-26 13:16 ` REH
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