From: Robert A Duff <bobduff@shell01.TheWorld.com>
Subject: Re: tasks, protected types and entries
Date: Sun, 17 Mar 2002 19:46:16 GMT
Date: 2002-03-17T19:46:16+00:00 [thread overview]
Message-ID: <wccvgbvgepj.fsf@shell01.TheWorld.com> (raw)
In-Reply-To: a72hes$15kh$1@ns.felk.cvut.cz
"Sergey Koshcheyev" <serko84@hotmail.com> writes:
> By the way, what is the difference between a procedure X and an "entry X
> when True" in a protected object? I remember that the "entry when True" was
> used once in John Barnes' book, but I couldn't find an explanation of the
> difference.
An entry can requeue; a procedure cannot. So if you want to do
something unconditionally and then perhaps requeue, you need a "when
True" entry barrier.
- Bob
next prev parent reply other threads:[~2002-03-17 19:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-17 14:50 tasks, protected types and entries chris.danx
2002-03-17 14:55 ` chris.danx
2002-03-17 15:46 ` Jim Rogers
2002-03-17 16:49 ` Sergey Koshcheyev
2002-03-17 19:46 ` Robert A Duff [this message]
2002-03-17 19:44 ` Richard Riehle
2002-03-17 20:06 ` Ehud Lamm
2002-03-17 21:53 ` Pat Rogers
2002-03-18 1:42 ` Jeffrey Carter
2002-03-18 5:14 ` Pat Rogers
2002-03-18 0:36 ` Bo Sanden
2002-03-29 0:10 ` chris.danx
2002-03-18 16:41 ` john mann
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