[Mod-pubsub-general] javascript trick redux

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Hello,

You thought you scared me away didn't you, with all your craziness and such?
Well it's not that easy I'm afraid.

I've spent the last day or so writing a server in .NET framework that keeps
open a javascript file like you guys are doing. My friend who is hosting
10's of thousands of flash-based clients (yeah, that's a custom server all
righty) says that the way to do it on Windows (he is using Linux) is with
I/O completion ports. His tests scaled up to at least a few thousands users
on one box. And I guess that the asynchronous methods in the
System.Net.Sockets namespace use I/O completion ports under the hood. This
uses the system thread pool for connection pooling. So I managed to write
the server with only a couple hundred lines of code. It uses a regular IIS
server for the upstream and then .NET remoting to communicate with the
custom server and then back down again via the javascript request. Which
brings me to a problem: the browser blocks execution on the javascript file
so the page doesn't load. Is there a special response header I need to
include? I can put the <script> tag after the closing <body> but I get some
weird errors elsewhere on the page, and also the IE world icon keeps
spinning. I noticed in the KnowNow demonstrations that this didn't happen.
Were there iframes being used? I covet its coolness.

--
Lucas Fletcher
lu...@de...
http://dealersinnotions.com