RE: javascript trick redux
"Adam Rifkin" <[email protected]> Fri, 9 May 2003 19:32:09 -0700
| Newsgroups | gmane.comp.web.mod-pubsub.general,gmane.comp.web.mod-pubsub.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi Lucas, Browsers buffer data read off the wire. To overcome this, try sending 4k or so of spaces after the </script> = tag. Also, we use hidden frames, not iframes. Have a look at the kn_debug part of the "Command-line Arguments" section in http://www.mod-pubsub.org/kn_docs/javascript_reference.html or use ?kn_debug in the URL like so: http://www.mod-pubsub.org/kn_apps/presence1/?kn_debug and this will reveal those hidden frames. Hope that helps, Adam -----Original Message----- From: Lucas Fletcher [mailto:[email protected]] Sent: Thursday, May 08, 2003 10:27 PM To: [email protected] Subject: [Mod-pubsub-general] javascript trick redux 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 [email protected] http://dealersinnotions.com ------------------------------------------------------- Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara The only event dedicated to issues related to Linux enterprise solutions www.enterpriselinuxforum.com _______________________________________________ Mod-pubsub-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mod-pubsub-general ------------------------------------------------------- Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara The only event dedicated to issues related to Linux enterprise solutions www.enterpriselinuxforum.com