July 1999
- ScryMUD release v1.9.10. Ben Greear
- In-game tailors, re-stringers, etc. Eli Stevens {KiZurich/GreySylk}
- In-game tailors, re-stringers, etc. Caliban Tiresias Darklock
- An apology J C Lawrence
- GM Touring Company Ling
- GM Touring Company Matthew Mihaly
- GM Touring Company Ling
- GM Touring Company Matthew Mihaly
- GM Touring Company Christopher Allen - GM Fangs
- GM Touring Company Marian Griffith
- GM Touring Company Alex Oren
- GM Touring Company Christopher Allen
- list of MUD platforms? Timothy O'Neill Dang
- list of MUD platforms? Ilya, SCC, Game Commando
- list of MUD platforms? Ilya, SCC, Game Commando
- list of MUD platforms? Ross Nicoll
- list of MUD platforms? Ilya, SCC, Game Commando
- list of MUD platforms? Christopher Allen
- list of MUD platforms? Ben Greear
- list of MUD platforms? Caliban Tiresias Darklock
- list of MUD platforms? Jon A. Lambert
- list of MUD platforms? Ross Nicoll
- list of MUD platforms? Mik Clarke
- ScryMUD 1.9.11 is now on my page and in CVS. Ben Greear
- Technical programming question (circular buffers & logging) Ben Greear
- an idea..wondering if this has been done Willowreed@aol.com
- an idea..wondering if this has been done Ben Greear
- an idea..wondering if this has been done Willowreed@aol.com
- an idea..wondering if this has been done Christopher Allen - GM Fangs
- an idea..wondering if this has been done David Bennett
- an idea..wondering if this has been done Willowreed@aol.com
- an idea..wondering if this has been done Christopher Allen - GM Fangs
- an idea..wondering if this has been done Par Winzell
- an idea..wondering if this has been done Bruce Mitchener, Jr.
- an idea..wondering if this has been done Joey Hess
- an idea..wondering if this has been done bruce@puremagic.com
- an idea..wondering if this has been done Joey Hess
- Victim Characters (was: Critiquing Muds) Eli Stevens {KiZurich/GreySylk}
- pfiles yacketta@kodak.com
- pfiles Richard Woolcock
- bytecode results Chris Gray
- fwd: forum on game design/culture Brandon J. Rickman
- fwd: forum on game design/culture Caliban Tiresias Darklock
- Containing automation? Timothy O'Neill Dang
- Containing automation? Katrina McClelan
- Containing automation? Timothy O'Neill Dang
- Containing automation? Andru Luvisi
- Containing automation? Ilya, SCC, Game Commando
- Containing automation? Greg Miller
- Containing automation? Katrina McClelan
- Containing automation? Marc Hernandez
- Containing automation? Matthew Mihaly
- Containing automation? Marc Hernandez
- Containing automation? Timothy O'Neill Dang
- Containing automation? Matthew Mihaly
- Containing automation? Marc Hernandez
- Containing automation? Marian Griffith
- Containing automation? Greg Miller
- Containing automation? Dan Root
- Containing automation? Caliban Tiresias Darklock
- Containing automation? Caliban Tiresias Darklock
- Containing automation? Ling
- Containing automation? Caliban Tiresias Darklock
- Containing automation? Ling
- Containing automation? Caliban Tiresias Darklock
- Containing automation? Jon A. Lambert
- Containing automation? Ilya, SCC, Game Commando
- Containing automation? Caliban Tiresias Darklock
- Containing automation? Jon A. Lambert
- Containing automation? Timothy O'Neill Dang
- Containing automation? Matthew Mihaly
- Containing automation? Matthew Mihaly
- Containing automation? Koster, Raph
- Containing automation? Matthew Mihaly
- Containing automation? Koster, Raph
- Containing automation? Ilya, SCC, Game Commando
- Containing automation? Matthew Mihaly
- Containing automation? Asmodeus
- Containing automation? Greg Miller
- Containing automation? Travis S. Casey
- Containing automation? Koster, Raph
- Containing automation? AR Schleicher
- Containing automation? Koster, Raph
- Containing automation? Ola Fosheim Grøstad
- Containing automation? Timothy O'Neill Dang
- Containing automation? Matthew Mihaly
- Containing automation? Greg Miller
- Containing automation? Matthew Mihaly
- Containing automation? Greg Miller
- Containing automation? Matthew Mihaly
- Containing automation? Greg Miller
- Containing automation? Matthew Mihaly
- Containing automation? Adam Wiggins
- Containing automation? Greg Miller
- Containing automation? Martin C Sweitzer
- Containing automation? Greg Miller
- Containing automation? Laurel Fan
- Containing automation? Matthew Mihaly
- Containing automation? Greg Miller
- Containing automation? Matthew Mihaly
- Containing automation? Charles Hughes
- Containing automation? Matthew Mihaly
- Containing automation? Katrina McClelan
- Containing automation? Timothy O'Neill Dang
- Containing automation? Charles Hughes
- Containing automation? Laurel Fan
- Containing automation? Charles Hughes
- Containing automation? Koster, Raph
- Containing automation? Matthew Mihaly
- Containing automation? Marian Griffith
- Containing automation? Matthew Mihaly
- Containing automation? Koster, Raph
- Containing automation? Ola Fosheim Grøstad
- Containing automation? Marian Griffith
- Containing automation? Wayne Pearson
- Containing automation? AR Schleicher
- Containing automation? Koster, Raph
- MUD-Dev digest, Vol 1 #121 - 2 msgs Dr. Cat
- MUD-Dev digest, Vol 1 #121 - 2 msgs Koster, Raph
- UO currency Timothy O'Neill Dang
- Game design Adam Wiggins
- dispatching events Greg Miller
- dispatching events Mark Gritter
On Thu, Jul 22, 1999 at 01:02:23AM -0500, Greg Miller wrote:
>
> I'm working on a lockless C&C game driver at the moment, and I'm
> wondering how others handle the dispatching of events. I see three
> approaches:
>
> [1] Calling object/function pairs by name. This is simple, but it seems
> rather less flexible than other approaches.
>
> [2] Subscriptions. In this case I'm referring to events that trigger
> calls to all subscribers as a single atomic unit. More flexible, but I
> can easily envision situations where events have to be restarted
> repeatedly if there are many subscribers.
>
> [3] A combination of the two, using two stage events, where the first
> stage generates a list of pending object/function pair calls. This would
> allow each call to be handled atomically, but is far more complex.
>
> I'm experimenting with #3 right now--anyone got any comments on the
> subject?
I think the difference is mainly how much inconsitency you're willing to
tolerate. It doesn't seem to me that [3] preserves the semantics of [2].
In particular, two events might appear in different orders to different
objects. This may not be a problem if your world allows this---
serializability is overrated. :) (and can still be enforced at a higher level
in the cases which really need it.)
There are ways to a avoid pessimal behavior in [2]. For example, increase
an event's "priority" each time it fails. (J C Lawrence suggested
something like this in the "lockless system -- foolproof?" thread last year.)
Another hybrid scheme is to break large subscriptions into atomic
subsubscriptions of smaller size, grouped by "closeness". The hope is that
objects that interact with each other will see a consistent event model,
while avoiding contention. The bookkeeping necessary for this may tend
to make it not worthwhile--- and there's little real gain in what semantics
you may assume.
Does [3] really have to be implemented at the driver level? It seems
identical in implementation to [1], except for the introduction of
"subscription" objects.
--
Mark Gritter <mgritter@cs.stanford.edu>
http://www-cs-students.stanford.edu/~mgritter/ - dispatching events Greg Miller
- dispatching events Mark Gritter
- injury-based combat Greg Miller
- injury-based combat Ilya, SCC, Game Commando
- injury-based combat Brian Carter
- injury-based combat Matthew Mihaly
- injury-based combat Greg Miller
- mud vs. mush membership Matthew Mihaly
- mud vs. mush membership Adam Wiggins
- mud vs. mush membership Greg Miller
- mud vs. mush membership Jay Carlson
- mud vs. mush membership Marian Griffith
- mud vs. mush membership Matthew Mihaly
- mud vs. mush membership Caliban Tiresias Darklock
- mud vs. mush membership Matthew Mihaly
- mud vs. mush membership Bruce Mitchener, Jr.
- mud vs. mush membership Greg Miller
- mud vs. mush membership Adam Wiggins
- mud vs. mush membership Jay Carlson
- mud vs. mush membership Adam Wiggins
- combat/injury Greg Miller
- The Virtual Ecology Tony Wilkinson
- The Virtual Ecology Adam Wiggins
- The Virtual Ecology Jp Calderone
- The Virtual Ecology Ilya, SCC, Game Commando
- The Virtual Ecology Albert
- The Virtual Ecology Schubert, Damion
- The Virtual Ecology Greg Miller
- The Virtual Ecology Brandon J. Rickman
- The Virtual Ecology Tony Wilkinson
- The Virtual Ecology Marian Griffith
- The Virtual Ecology Chris Gray
- The Virtual Ecology Brian Carter
- The Virtual Ecology Par Winzell
- The Virtual Ecology Felix A. Croes
- The Virtual Ecology Chris Turner
- The Virtual Ecology Ling Lo
- The Virtual Ecology Brandon J. Rickman
- [ScryMUD] Splitting development, code re-organization. Ben Greear
- OT: Raph & Kristen absent for a bit Koster, Raph
- Essays on parsing text. Ling
- Essays on parsing text. Christopher Allen
- Essays on parsing text. Travis S. Casey