Hi Scott, Thank you for your response.
I am a little confused by your response, since my question was in regard to sleep( milliseconds), which I need in order to save CPU in a loop that checks resource availability. Any browser would wait just fine for a couple of hundred milliseconds. BTW, I am doing exactly what you suggest, rethinking my application. Until now it worked just fine, under Tango 2000, never had a problem. It still works OK now, under Witango 5 in a test environment, but I feel uneasy to move it into the production because I did not test it in a real, multiuser environment. The big problem is I lack understanding of how to deal with multi-threading when no controlling mechanism is available for managing threads. Mike Bravu. -----Original Message----- From: Scott Cadillac [mailto:[EMAIL PROTECTED] Sent: Thursday, April 22, 2004 11:03 To: [EMAIL PROTECTED] Subject: RE: Witango-Talk: Sleep & While + explanations Hi Mike, With regards to your wishful thinking of a sleep() function in Witango, I think you need to rethink your application a bit. Regardless of the development platform that may, or may not, support a "sleep" or "wait" process - the client component (browser) of your "Web" application has limited tolerance for such a thing. Browsers don't like waiting. Although you can craft some special HTTP output to make a browser wait (checkout the "Push" attribute), the results are not always User friendly. I would suggest building a special webpage/window that periodically "checks" with the Server if the requested resource is free yet. You can do this with JavaScript, or with a META Refresh - and also provide Users with intelligent messages. I know this is not a simple solution from a developer point of view, because it's more in the interest of the end-user - but who said programming would be easy? ----- And although it has been a long time coming, I understand an <@WHILE> Meta tag will be coming in version 5.5 (or 6.0?). Hope this helps. Cheers.... (Note: new phone number April 26th: 403-254-5002) Scott Cadillac, 403-281-6090 ~ [EMAIL PROTECTED] ------------ XML-Extranet ~ http://xmlx.ca ~ http://forums.xmlx.ca Well-formed Programming in C# .NET, Witango, MSIE and XML ------------ IExtranet ~ http://iextranet.ca Witango ~ http://witango.org EasyXSLT ~ http://easyxslt.ca IIS Watcher ~ http://iiswatcher.ca ------------ ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, April 22, 2004 10:25 AM To: [EMAIL PROTECTED] Subject: RE: Witango-Talk: Sleep & While + explanations I need sleep() (on the server side) to wait for availability on a locked resource ( without loading the CPU ). If I use an external procedure (dos wait) I am not sure what is the delay needed to load the DOS interpreter; and I would prefer not to bind the the solution to an OS. Java can solve all this (provided it is already loaded) but I was curious to see if somebody found a simpler way. I was aware of while action and that would work just fine; however that means I end up fragmenting a results page action; I'd rather use <@FOR> if I can make it act as a while (which can be done in all programming languages that I know), but I found no way to do that with witango. I wonder, since there are <@TIMER> and <@FOR> metatags, why not <@SLEEP> and <@WHILE> as well? They are obviously closely related and I assume they cannot be that difficult to implement... Thank you for all your suggestions. Mike Bravu. ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, April 22, 2004 03:28 To: [EMAIL PROTECTED] Subject: Witango-Talk: Sleep & While Hello all, Can anybody help me out with the Witango equivalents for: 1- sleep( milliseconds ); and 2- while( true ) { } The solutions that I found are not acceptable: 1- except for using externals, if I try to use <@TIMER> it seems I burn the CPU, which is not what I want; 2- <@FOR> </@FOR> does not really work or I do not know how to setup Start/Step/Stop If the solution is already explained in the documentation I apologize, I just could not find it. Thank you, Mike Bravu ________________________________________________________________________ TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf ________________________________________________________________________ TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf ________________________________________________________________________ TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf ________________________________________________________________________ TO UNSUBSCRIBE: Go to http://www.witango.com/developer/maillist.taf
