From: dennison@telepath.com
Subject: Re: Looking for implementation idea
Date: 1999/02/08
Date: 1999-02-08T00:00:00+00:00 [thread overview]
Message-ID: <79n3bi$6bu$1@nnrp1.dejanews.com> (raw)
In-Reply-To: 79ldf2$sc3$1@nnrp1.dejanews.com
In article <79ldf2$sc3$1@nnrp1.dejanews.com>,
dewar@gnat.com wrote:
> If a program assumes that an active high priority task
> which does not block will guarantee that low priority tasks
> make no progress at all (a guarantee that MUST be true on
> a mono-processor for a compiler that fully implements the
> real time annex (*)) then you have a program which will
> work only on a single processor.
> (*) Of course not all compilers fully implement the real
> time annex, including the important FIFO_Within_Priorities
> dispatching policy that makes this guarantee. For example,
Isn't it possible that a compiler implementing that annex has a default
dispatching policy (not FIFO_Within_Priorities of course) that doesn't make
this guarantee? I suppose you could force it to work on said system (again,
on a single processor), by specifing FIFO_* policy rather than using the
default.
T.E.D.
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next prev parent reply other threads:[~1999-02-08 0:00 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-02-07 0:00 Looking for implementation idea Thomas Handler
1999-02-07 0:00 ` Corey Minyard
1999-02-07 0:00 ` Tom Moran
1999-02-07 0:00 ` Corey Minyard
1999-02-07 0:00 ` Larry Kilgallen
1999-02-08 0:00 ` dewar
1999-02-08 0:00 ` dennison [this message]
1999-02-08 0:00 ` robert_dewar
1999-02-07 0:00 ` Tucker Taft
1999-02-07 0:00 ` Corey Minyard
1999-02-08 0:00 ` Tucker Taft
1999-02-07 0:00 ` Corey Minyard
1999-02-08 0:00 ` robert_dewar
1999-02-08 0:00 ` dennison
1999-02-08 0:00 ` Tucker Taft
1999-02-09 0:00 ` robert_dewar
1999-02-11 0:00 ` Ehud Lamm
1999-02-08 0:00 ` robert_dewar
1999-02-08 0:00 ` Thomas Handler
1999-02-07 0:00 ` Niklas Holsti
1999-02-08 0:00 ` Thomas Handler
1999-02-09 0:00 ` Niklas Holsti
1999-02-10 0:00 ` Thomas Handler
1999-02-07 0:00 ` Paul Duquennoy
1999-02-08 0:00 ` Thomas Handler
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