Tasking (Background tasks)?

[K]

This is not something that easily use the send in time construct.  I do not wish to waste the run-time a send in WAG requires.  What is the approiate construct to use so that several very intense repeat loops will get equal time?  I have been using wait for messages which did not function as I would have expected.  It seems that wait for messages only allow "new" habdlers to proceed nut does not yeild control to a handler already running a repeat construct.  Maybe this is a question I should ask of the RR support.  Any ideas?


Kevin

NOTE: Might there be a doEvents type construct which would allow 2 routines in tight loops to execute?



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 --- On Wed 06/09, Brian Yennie < briany at qldlearning.com > wrote:
From: Brian Yennie [mailto: briany at qldlearning.com]
To: nnoydb at excite.com, use-revolution at lists.runrev.com
Date: Wed, 9 Jun 2004 16:38:26 -0400
Subject: Re: Tasking (Background tasks)?

Wait with messages is one option that will allow other messages to be <br>sent and executed. Another is to use "send" to process things in <br>chunks, such as:<br><br>on mouseUp<br>     loadSomeData<br>end mouseUp<br><br>on loadSomeData<br>    if (dataLoadingComplete() = TRUE) then<br>        ...<br>       send "loadSomeData" to me in 50 milliseconds<br>    end if<br>end loadSomeData<br><br>By using send, you are essentially "yielding" until the next message is <br>delivered, and you can specify how much time you want to give up- the <br>above example giving 50 milliseconds between chunks of processing. I've <br>never compared "send" to "wait with messages" directly, but I presume <br>"wait" will give you the tightest loop while "send" offers the most <br>flexibility.<br><br>HTH<br><br>> I realize that it is the accepted method of taking in the RR <br>> environment but I am wondering if there are not any simple cooperative <br>> multi-tasking constructs.  I am loading a significant amount of data <br>> using a repeat loop I would like at the approiate time to yeild to any <br>> other tasks.  Can I accomplish this by using wait for messages?  Has <br>> someone already built cooperative tasking API or LIB? Is it even <br>> possible.  Since using a WAG to dealy a function is contrary to many <br>> multi-tasking concepts.<br><br>

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