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<H1>[MUD-Dev] Re: atomic functions</H1>
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<LI><em>To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
<LI><em>Subject</em>: [MUD-Dev] Re: atomic functions</LI>
<LI><em>From</em>: Shawn Halpenny <<A HREF="mailto:malachai#iname,com">malachai#iname,com</A>></LI>
<LI><em>Date</em>: Thu, 14 May 1998 16:00:45 -0400</LI>
<LI><em>Reply-To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
<LI><em>Sender</em>: "Petidomo List Agent -- Kanga.Nu version" <<A HREF="mailto:petidomo#kanga,nu">petidomo#kanga,nu</A>></LI>
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<PRE>
On Wed, May 13, 1998 at 05:42:00PM +0000, Jon A. Lambert wrote:
> On 7 May 98, Shawn Halpenny wrote:
> > On Wed, May 06, 1998 at 09:34:27PM +0200, Felix A. Croes wrote:
> > >
> > > I contest this :) I claim that it is very useful indeed, and not
> > > at all illusionary. I frequently find that actions which have to
> > > be atomic -- for instance, moving a hungry dragon into a room,
> > > which changes both the environment of the dragon and the inventory
> > > of the room -- are part of a larger event, the actions of which
> > > I want to be executed precisely in that other without other
> > > events intervening.
> >
> > Moving the hungry dragon into the room does not have to be an atomic
> > action. Removing the dragon from its current room is one event, putting it
> > into the next room is another. This is an attempt to minimize the number
> > of C&C collisions if you have a lot of these things going on (get rid of the
> > container-room ideology and this is even less a factor--something I'll
> > probably end up going with). The movement events will be executed in the
> > correct order, since the dragon removal event posts the dragon insertion
> > event only if it successfully C&C's.
> >
>
> But what if object Bubba "closes the door"event succeeds after the
> "dragon removed from the room" event succeeds and before "dragon
> added to Bubba's room" begins. Does the dragon go through the closed
> door?
Unfortunately in this mail, the dragon does go through the door. Had I payed
closer attention to what I was saying when replying, it wouldn't.
How ghastly of me to write that (and worse, I have it all written up
correctly in my D-doc...shame on me).
Not everything can be broken up like that, the general case of
a one-step process concurrent with a two-step process, both with a
common object like the door being a fine example. I confuzzed the thinking
about loops over multiple objects with the 1:2 step process case...
(The curious can harken back to
<A HREF="http://www.kanga.nu:80/~petidomo/lists/mud-dev/1997Q3/msg00468.html">http://www.kanga.nu:80/~petidomo/lists/mud-dev/1997Q3/msg00468.html</A> )
for a little bit more about why this can be particularly dastardly.
--
Shawn Halpenny
I know that you believe you understand what you think I said, but,
I am not sure you realize that what you heard is not what I meant.
--
MUD-Dev: Advancing an unrealised future.
</PRE>
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<UL><LI><STRONG>References</STRONG>:
<UL>
<LI><STRONG><A NAME="00433" HREF="msg00433.html">[MUD-Dev] Re: atomic functions</A></STRONG>
<UL><LI><EM>From:</EM> "Felix A. Croes" <felix#xs1,simplex.nl></LI></UL></LI>
<LI><STRONG><A NAME="00459" HREF="msg00459.html">[MUD-Dev] Re: atomic functions</A></STRONG>
<UL><LI><EM>From:</EM> Shawn Halpenny <malachai#iname,com></LI></UL></LI>
<LI><STRONG><A NAME="00558" HREF="msg00558.html">[MUD-Dev] Re: atomic functions</A></STRONG>
<UL><LI><EM>From:</EM> "Jon A. Lambert" <jlsysinc#ix,netcom.com></LI></UL></LI>
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<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>[MUD-Dev] Re: atomic functions</STRONG>, <EM>(continued)</EM>
<ul compact>
<ul compact>
<LI><strong><A NAME="00464" HREF="msg00464.html">[MUD-Dev] Re: atomic functions</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Thu 07 May 1998, 22:58 GMT
</LI>
</ul>
<LI><strong><A NAME="00433" HREF="msg00433.html">[MUD-Dev] Re: atomic functions</A></strong>,
Felix A. Croes <a href="mailto:felix#xs1,simplex.nl">felix#xs1,simplex.nl</a>, Wed 06 May 1998, 19:37 GMT
<UL>
<LI><strong><A NAME="00459" HREF="msg00459.html">[MUD-Dev] Re: atomic functions</A></strong>,
Shawn Halpenny <a href="mailto:malachai#iname,com">malachai#iname,com</a>, Thu 07 May 1998, 14:12 GMT
<UL>
<LI><strong><A NAME="00558" HREF="msg00558.html">[MUD-Dev] Re: atomic functions</A></strong>,
Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Wed 13 May 1998, 21:41 GMT
<UL>
<LI><strong><A NAME="00584" HREF="msg00584.html">[MUD-Dev] Re: atomic functions</A></strong>,
Shawn Halpenny <a href="mailto:malachai#iname,com">malachai#iname,com</a>, Thu 14 May 1998, 20:00 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00559" HREF="msg00559.html">[MUD-Dev] Re: atomic functions</A></strong>,
Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Wed 13 May 1998, 21:46 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00511" HREF="msg00511.html">[MUD-Dev] Re: atomic functions</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Tue 12 May 1998, 01:17 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00437" HREF="msg00437.html">[MUD-Dev] Re: atomic functions</A></strong>,
Felix A. Croes <a href="mailto:felix#xs1,simplex.nl">felix#xs1,simplex.nl</a>, Wed 06 May 1998, 21:31 GMT
<UL>
<LI><strong><A NAME="00444" HREF="msg00444.html">[MUD-Dev] Re: atomic functions</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Wed 06 May 1998, 22:29 GMT
</LI>
</UL>
</LI>
</ul>
</LI>
</UL></BLOCKQUOTE>
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