<!-- MHonArc v2.4.4 -->
<!--X-Subject: Re: So in an event-driven server, how do you ... -->
<!--X-From-R13: pynjerapNkfie1.phc.uc.pbz -->
<!--X-Date: from babe.globecomm.net [207.51.48.8] by mx3.ibm.net id 860794312.69454-1 Fri Apr 11 21:31:52 1997 -->
<!--X-Message-Id: 199703101436.3728386.7@claw -->
<!--X-Content-Type: text/plain -->
<!--X-Reference: 199704071758.RAA543716#out2,ibm.net -->
<!--X-Head-End-->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
<head>
<title>MUD-Dev message, Re: So in an event-driven server, how do you ...</title>
<!-- meta name="robots" content="noindex,nofollow" -->
<link rev="made" href="mailto:clawrenc#xsvr1,cup.hp.com">
</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="msg00086.html">Previous</a>
| <a href="msg00087.html">Next</a>
]
Thread:
[ <a href="msg00046.html">Previous</a>
| <a href="msg00088.html">Next</a>
]
Index:
[ <A HREF="author.html#00090">Author</A>
| <A HREF="#00090">Date</A>
| <A HREF="thread.html#00090">Thread</A>
]
<!--X-TopPNI-End-->
<!--X-MsgBody-->
<!--X-Subject-Header-Begin-->
<H1>Re: So in an event-driven server, how do you ...</H1>
<HR>
<!--X-Subject-Header-End-->
<!--X-Head-of-Message-->
<UL>
<LI><em>To</em>: Multiple Recipients of MUD Design Mailing List <<A HREF="mailto:mud-dev#null,net">mud-dev#null,net</A>></LI>
<LI><em>Subject</em>: Re: So in an event-driven server, how do you ...</LI>
<LI><em>From</em>: <A HREF="mailto:clawrenc#xsvr1,cup.hp.com">clawrenc#xsvr1,cup.hp.com</A></LI>
<LI><em>Date</em>: Thu, 10 Apr 97 14:29:07 -0700</LI>
<LI><em>Reply-To</em>: <A HREF="mailto:claw#null,net">claw#null,net</A></LI>
</UL>
<!--X-Head-of-Message-End-->
<!--X-Head-Body-Sep-Begin-->
<HR>
<!--X-Head-Body-Sep-End-->
<!--X-Body-of-Message-->
<PRE>
In <199704071758.RAA543716#out2,ibm.net>, on 04/07/97
at 01:39 PM, Michael Hohensee <michael#sparta,mainstream.net> said:
>It looks like you guys hate polling. (Not that I blame you, I don't
>really like it myself. :) But if you've got a system that just sits
>until the next "ripening", how do you do your IO with players? Do
>you use an endless loop to poll the connections? Or do you use the
>SIGIO signal?
Rather than re-state, from an earlier post of mine:
--<cut>--
> I am particularly interested in how your pool of threads manages socket
> connections. Are these threads dynamically created to manage connections?
> That is, do you n+1 threads managing your connections, where n is active
> connections plus one to handle connection requests on the master socket?
> Are sockets blocked or do you use some other method of activating threads?
This is really really crude, as its very long time since I looked at
this code:
One thread watches the master socket and spawns connection sockets
from there as they come in.
The child sockets then go into a pool (actually I think its a bag?)
with
a monitoring thread. Any IO to or from a socket is then assigned on
a
first available basis to a thread from a waiting pool of IO threads.
Should an IO request come in which does not have a waiting thread
ready
to execute it, a new thread is created to process the IO.
Should the number of IO threads significantly exceed the number of
open
sockets, then IO threads are killed down to a base minimum.
As such the total number of IO threads is proportional to the
current
maximum rate of IO transactions thru the system.
I could be way off here, but I think the above is fairly accurate,
well sorta, maybe.
--<cut>--
>I tried to use both. I poll for new commands from the players, and
>use the SIGIO signal to hook up a new connection. More than a
>little bit dirty. It doesn't work under BSD, then I have to poll
>for everything.
Look into the select() and poll() calls for *nix work.
--
J C Lawrence Internet: claw#null,net
(Contractor) Internet: coder#ibm,net
---------------(*) Internet: clawrenc#cup,hp.com
...Honorary Member Clan McFUD -- Teamer's Avenging Monolith...
</PRE>
<!--X-Body-of-Message-End-->
<!--X-MsgBody-End-->
<!--X-Follow-Ups-->
<HR>
<!--X-Follow-Ups-End-->
<!--X-References-->
<!--X-References-End-->
<!--X-BotPNI-->
<UL>
<LI>Prev by Date:
<STRONG><A HREF="msg00086.html">Of disk swapping, database structure & project management..</A></STRONG>
</LI>
<LI>Next by Date:
<STRONG><A HREF="msg00087.html">Re: Greetings. :)</A></STRONG>
</LI>
<LI>Prev by thread:
<STRONG><A HREF="msg00046.html">Re: So in an event-driven server, how do you ...</A></STRONG>
</LI>
<LI>Next by thread:
<STRONG><A HREF="msg00088.html">Re: So in an event-driven server, how do you ...</A></STRONG>
</LI>
<LI>Index(es):
<UL>
<LI><A HREF="index.html#00090"><STRONG>Date</STRONG></A></LI>
<LI><A HREF="thread.html#00090"><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><A NAME="00038" HREF="msg00038.html">So in an event-driven server, how do you ...</A></strong>,
Michael Hohensee <a href="mailto:michael#sparta,mainstream.net">michael#sparta,mainstream.net</a>, Tue 08 Apr 1997, 00:35 GMT
<UL>
<li><Possible follow-up(s)><br>
<LI><strong><A NAME="00039" HREF="msg00039.html">Re: So in an event-driven server, how do you ...</A></strong>,
S001GMU <a href="mailto:S001GMU#nova,wright.edu">S001GMU#nova,wright.edu</a>, Tue 08 Apr 1997, 02:10 GMT
</LI>
<LI><strong><A NAME="00040" HREF="msg00040.html">Re: So in an event-driven server, how do you ...</A></strong>,
Nathan Yospe <a href="mailto:yospe#hawaii,edu">yospe#hawaii,edu</a>, Tue 08 Apr 1997, 03:42 GMT
</LI>
<LI><strong><A NAME="00046" HREF="msg00046.html">Re: So in an event-driven server, how do you ...</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Tue 08 Apr 1997, 13:08 GMT
</LI>
<LI><strong><A NAME="00090" HREF="msg00090.html">Re: So in an event-driven server, how do you ...</A></strong>,
clawrenc <a href="mailto:clawrenc#xsvr1,cup.hp.com">clawrenc#xsvr1,cup.hp.com</a>, Sat 12 Apr 1997, 04:31 GMT
</LI>
<LI><strong><A NAME="00088" HREF="msg00088.html">Re: So in an event-driven server, how do you ...</A></strong>,
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Sat 12 Apr 1997, 04:38 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00023" HREF="msg00023.html">Re: Resets and repops</A></strong>,
coder <a href="mailto:coder#ibm,net">coder#ibm,net</a>, Sun 06 Apr 1997, 04:08 GMT
<UL>
<li><Possible follow-up(s)><br>
<LI><strong><A NAME="00052" HREF="msg00052.html">Re: Resets and repops</A></strong>,
S001GMU <a href="mailto:S001GMU#nova,wright.edu">S001GMU#nova,wright.edu</a>, Wed 09 Apr 1997, 05:08 GMT
</LI>
<LI><strong><A NAME="00092" HREF="msg00092.html">Re: Resets and repops</A></strong>,
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Sat 12 Apr 1997, 05:10 GMT
</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>