revolution taking up 100% of cpu, again

[Mark Smith]

Why are you cancelling all pending messages that don't start with 
"rev"? Perhaps, if the timing is unlucky, you're interfering with a 
close stack message?

Mark

On 24 Aug 2005, at 16:29, Jon wrote:

> I reported this IDE problem months ago, with a different application, 
> but here I go again.  I seem to have a talent for creating problem 
> stacks like this.  Last time it was a logic error in one of my 
> handlers.
>
> I am writing an application to test a web site I've written.  Once 
> every TBD (typically 15) minutes, it "wakes up" and Posts some data to 
> each of three versions of the same web site (supposed to be the same 
> code, only on three different servers, one of which is local to my 
> machine).  It then inspects the returned HTML to see if the requested 
> operation was successful.
>
> I wrote the program to "wake up" every 10 seconds and see whether it 
> is time to go yet or not. Two strange things are happening.
>
> 1) while the application is supposed to be hitting each web 
> site/server once every TBD minutes, it seems as if it may be hitting 
> it 4-5 times, all within a fraction of a second.  This undesired 
> behavior (AKA bug?) has allowed me to find and fix a number of errors 
> in the web site, but I would like to understand how and why it is 
> occurring.  My first thought is that multiple Sends are getting 
> triggered when I only wanted one to be sent.  I altered the Send 
> statement to be  included in the following procedure, to try to 
> control this:
>
> on SendToMyself s  local pm, str, theLine
>  put the pendingMessages into pm
>  repeat for each line theLine in pm
>    put char 1 to 3 of item 3 of theLine into str
>    if (str <> "rev") then
>      cancel item 1 of theLine
>    end if
>  end repeat
>  if (s = 0) then
>    send "TestTheReports" to the target
>    else
>    send "TestTheReports" to the target in s seconds
>    end if
>
> Can anyone see a problem with the way this is written?
>
>
> 2) if I run the stack for 20 hours or so, and then click on the Close 
> icon, Rev first asks if I want to save the application, after which 
> Rev starts to use 100% of the CPU.  I have to go kill the IDE, even 
> though, in theory, nothing is running any longer.  This can also 
> happen if I switch from Run mode to Edit mode in the IDE, at which 
> point I lose EVERYTHING I've worked on (no Save is possible).  I Save 
> the application every chance I get because of this.  If I had to 
> guess, I would think that the IDE is losing it over residual 
> Sends/messages (see above)
>
> I tried monitoring the Messages, but did not see the spray of messages 
> that I had thought that I might: I only see that one message every 10 
> seconds.
>
> Any thoughts about this situation?  I can provide the stack if you 
> wish...
>
> :)
>
> Jon
>
>
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