<!-- MHonArc v2.4.4 -->
<!--X-Subject: Re: [MUD-Dev] DBs and Events -->
<!--X-From-R13: Uert [hag <tertNhav-pbea.qrzba.pb.hx> -->
<!--X-Date: Wed, 11 Feb 1998 10:50:22 +0000 -->
<!--X-Message-Id: Pine.LNX.3.91.980210211015.65K-100000@uni-corn.demon.co.uk -->
<!--X-Content-Type: text/plain -->
<!--X-Reference: Pine.GSO.3.95q.980210092208.22633B-100000@uhunix1 -->
<!--X-Head-End-->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
<head>
<title>MUD-Dev message, Re: [MUD-Dev] DBs and Events</title>
<!-- meta name="robots" content="noindex,nofollow" -->
<link rev="made" href="mailto:greg#uni-corn,demon.co.uk">
</head>
<body background="/backgrounds/paperback.gif" bgcolor="#ffffff"
text="#000000" link="#0000FF" alink="#FF0000" vlink="#006000">
<font size="+4" color="#804040">
<strong><em>MUD-Dev<br>mailing list archive</em></strong>
</font>
<br>
[ <a href="../">Other Periods</a>
| <a href="../../">Other mailing lists</a>
| <a href="/search.php3">Search</a>
]
<br clear=all><hr>
<!--X-Body-Begin-->
<!--X-User-Header-->
<!--X-User-Header-End-->
<!--X-TopPNI-->
Date:
[ <a href="msg00398.html">Previous</a>
| <a href="msg00400.html">Next</a>
]
Thread:
[ <a href="msg00397.html">Previous</a>
| <a href="msg00400.html">Next</a>
]
Index:
[ <A HREF="author.html#00399">Author</A>
| <A HREF="#00399">Date</A>
| <A HREF="thread.html#00399">Thread</A>
]
<!--X-TopPNI-End-->
<!--X-MsgBody-->
<!--X-Subject-Header-Begin-->
<H1>Re: [MUD-Dev] DBs and Events</H1>
<HR>
<!--X-Subject-Header-End-->
<!--X-Head-of-Message-->
<UL>
<LI><em>To</em>: <A HREF="mailto:mud-dev#null,net">mud-dev#null,net</A></LI>
<LI><em>Subject</em>: Re: [MUD-Dev] DBs and Events</LI>
<LI><em>From</em>: Greg Munt <<A HREF="mailto:greg#uni-corn,demon.co.uk">greg#uni-corn,demon.co.uk</A>></LI>
<LI><em>Date</em>: Wed, 11 Feb 1998 10:47:34 +0100 (GMT+0100)</LI>
</UL>
<!--X-Head-of-Message-End-->
<!--X-Head-Body-Sep-Begin-->
<HR>
<!--X-Head-Body-Sep-End-->
<!--X-Body-of-Message-->
<PRE>
On Tue, 10 Feb 1998, Nathan Yospe wrote:
> On Tue, 10 Feb 1998, Greg Munt wrote:
>
> :Also, any references to caches?
>
> Again, can't help you. I've done caches, but not for my mud... and there
> is such a broad spectrum of things that qualify as cache. Do you want to
> know more about cached in-memory storage for a disk-based DB?
Yes.
> Or bottleneck spot caching?
What's that?
> :Any references to Event Management? Is there any alternative to using a
> :pointer to a function, to store the Event->function()? (This has the
> :disadvantage of every Event->function() needing to have the same number
> :and type of parameters being passed to it.)
>
> Here we go. This I can help you with. Events don't have to be functions,
> for a start. An event could be stored as anything, from a script on down
> to a held thread. I store mine as classes... any action is executed from
> an event class, which grabs the nearest available execution thread, sets
> it to the event's references, and frees it to go. Events are, by design,
> only actually capable of grabbing one specific thread, such that any set
> of events cannot execute asynchronously on the same resources. Functions
> are actually pulled up _after_ execution begins... Event.Process() is at
> its basis a normalization check, which tries to match a list of objects,
> and upon success, changes the values of the objects to a new norm, then,
> with its still-active thread, allows those objects to update. The object
> update methods are the actual functions involved, and once each object's
> updates are complete (and affected objects with zero delay complete such
> updates as the modified objects have made available) the thread is wiped
> clear of variables, set to sleep, and returned to the pool.
I'm not sure I understand this too well. Are you suggesting this?
class Event
{
private:
DataType1 *a;
DataType2 *b;
...
public:
...
process();
};
I still can't see how the event isn't a function. The tasks that the
event does have to be stored in a function?
Am I wrong in thinking that the data that an Event needs (eg pointer to a
Player) are stored in the class, with a function - which takes no
parameters - calling class methods to do whatever it is that the Event is
trying to achieve? Also, it looks like Event would need to be a template.
Forget that, am using Linux g++ :(
I feel like I have totally gotten the wrong end of the stick here...
> This is just
> one approach to events that doesn't actually require a function pointer,
> and a good number of others can be found in deja news archives of thread
> and event related newsgroups.
Could you lead me in the right direction here? Searches on dejanews
revealed not very much (read: nothing)...
> Nathan F. Yospe - Aimed High, Crashed Hard, In the Hanger, Back Flying Soon
> Jr Software Engineer, Textron Systems Division (On loan to Rocketdyne Tech)
> (Temporarily on Hold) Physics student, University of Hawaii dept of Physics
> yospe#hawaii,edu nyospe#premeir,mhpcc.af.mil <A HREF="http://www2.hawaii.edu/~yospe/">http://www2.hawaii.edu/~yospe/</A>
I'll use this opportunity to keep you updated on my work activities: I
finally got a job, C++/Unix, using such tools as Rational Rose, etc. I'll
be maintaining and developing planning and scheduling software for the
steel industry. Will post a FAQ update soon.
I'm free of Cobol now! Hurrah!
--
Greg Munt, greg#uni-corn,demon.co.uk "I'm not bitter - just twisted."
<A HREF="http://www.uni-corn.demon.co.uk/ubiquity/">http://www.uni-corn.demon.co.uk/ubiquity/</A>
</PRE>
<!--X-Body-of-Message-End-->
<!--X-MsgBody-End-->
<!--X-Follow-Ups-->
<HR>
<ul compact><li><strong>Follow-Ups</strong>:
<ul>
<li><strong><A NAME="00402" HREF="msg00402.html">Re: [MUD-Dev] DBs and Events</A></strong>
<ul compact><li><em>From:</em> Nathan Yospe <yospe#hawaii,edu></li></ul>
<li><strong><A NAME="00400" HREF="msg00400.html">DBs and Events</A></strong>
<ul compact><li><em>From:</em> s001gmu#nova,wright.edu</li></ul>
</UL></LI></UL>
<!--X-Follow-Ups-End-->
<!--X-References-->
<UL><LI><STRONG>References</STRONG>:
<UL>
<LI><STRONG><A NAME="00397" HREF="msg00397.html">Re: [MUD-Dev] DBs and Events</A></STRONG>
<UL><LI><EM>From:</EM> Nathan Yospe <yospe#hawaii,edu></LI></UL></LI>
</UL></LI></UL>
<!--X-References-End-->
<!--X-BotPNI-->
<UL>
<LI>Prev by Date:
<STRONG><A HREF="msg00398.html">No Subject</A></STRONG>
</LI>
<LI>Next by Date:
<STRONG><A HREF="msg00400.html">DBs and Events</A></STRONG>
</LI>
<LI>Prev by thread:
<STRONG><A HREF="msg00397.html">Re: [MUD-Dev] DBs and Events</A></STRONG>
</LI>
<LI>Next by thread:
<STRONG><A HREF="msg00400.html">DBs and Events</A></STRONG>
</LI>
<LI>Index(es):
<UL>
<LI><A HREF="index.html#00399"><STRONG>Date</STRONG></A></LI>
<LI><A HREF="thread.html#00399"><STRONG>Thread</STRONG></A></LI>
</UL>
</LI>
</UL>
<!--X-BotPNI-End-->
<!--X-User-Footer-->
<!--X-User-Footer-End-->
<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>Re: [MUD-Dev] Character development [was Re: ]</STRONG>, <EM>(continued)</EM>
<ul compact>
<ul compact>
<ul compact>
<ul compact>
<LI><strong><A NAME="00890" HREF="msg00890.html">Re: [MUD-Dev] Character development [was Re: ]</A></strong>,
Matt Chatterley <a href="mailto:matt#mpc,dyn.ml.org">matt#mpc,dyn.ml.org</a>, Wed 25 Mar 1998, 08:12 GMT
</LI>
</ul>
</ul>
</ul>
<LI><strong><A NAME="00905" HREF="msg00905.html">No Subject</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Thu 26 Mar 1998, 17:32 GMT
</LI>
</ul>
</LI>
<LI><strong><A NAME="00396" HREF="msg00396.html">DBs and Events</A></strong>,
Greg Munt <a href="mailto:greg#uni-corn,demon.co.uk">greg#uni-corn,demon.co.uk</a>, Tue 10 Feb 1998, 18:30 GMT
<UL>
<LI><strong><A NAME="00397" HREF="msg00397.html">Re: [MUD-Dev] DBs and Events</A></strong>,
Nathan Yospe <a href="mailto:yospe#hawaii,edu">yospe#hawaii,edu</a>, Tue 10 Feb 1998, 19:40 GMT
<UL>
<LI><strong><A NAME="00399" HREF="msg00399.html">Re: [MUD-Dev] DBs and Events</A></strong>,
Greg Munt <a href="mailto:greg#uni-corn,demon.co.uk">greg#uni-corn,demon.co.uk</a>, Wed 11 Feb 1998, 10:50 GMT
<UL>
<LI><strong><A NAME="00400" HREF="msg00400.html">DBs and Events</A></strong>,
s001gmu <a href="mailto:s001gmu#nova,wright.edu">s001gmu#nova,wright.edu</a>, Wed 11 Feb 1998, 14:26 GMT
<UL>
<LI><strong><A NAME="00432" HREF="msg00432.html">OT: Linux g++</A></strong>,
Greg Munt <a href="mailto:greg#uni-corn,demon.co.uk">greg#uni-corn,demon.co.uk</a>, Thu 12 Feb 1998, 11:52 GMT
<UL>
<LI><strong><A NAME="00444" HREF="msg00444.html">Re: [MUD-Dev] OT: Linux g++</A></strong>,
Ben Greear <a href="mailto:greear#cyberhighway,net">greear#cyberhighway,net</a>, Fri 13 Feb 1998, 00:30 GMT
<UL>
<LI><strong><A NAME="00487" HREF="msg00487.html">Re: [MUD-Dev] OT: Linux g++</A></strong>,
coder <a href="mailto:coder#ibm,net">coder#ibm,net</a>, Mon 16 Feb 1998, 11:29 GMT
</LI>
</UL>
</LI>
</UL>
</LI>
</UL>
</LI>
</UL>
</LI>
</UL>
</LI>
</UL>
</LI>
</UL></BLOCKQUOTE>
</ul>
<hr>
<center>
[ <a href="../">Other Periods</a>
| <a href="../../">Other mailing lists</a>
| <a href="/search.php3">Search</a>
]
</center>
<hr>
</body>
</html>
