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Re: IDLVM and retall [message #49995 is a reply to message #49994]

Fri, 08 September 2006 09:12

JD Smith
Messages: 850
Registered: December 1999

Senior Member

On Fri, 08 Sep 2006 09:28:20 -0600, David Fanning wrote:

> JD Smith writes:
>
>> Keep
>> in mind that there are many many event callback procedure operating
>> simultaneously, so you don't want to put a CATCH statement in all of
>> them (plus it's slow for each motion event to call CATCH).
>
> Ben's follow up this morning reminded me that I meant to
> ask about this.
>
> Do you have evidence that a CATCH statement is slow?
> I pretty much put CATCH error handlers in ALL my
> event handlers, including those used in draw widgets
> for motion events. I have never noticed that these
> were "slow". Or, rather, I've never thought speed was
> a problem for anything I was doing with motion events.

I guess I've never really measured it. It seems the actual call to
CATCH + a test on the catch error variable take about a microsecond for
me, so really probably not a problem (i.e. it will always be a tiny part
of your motion event callback budget).

What I do always wonder is how setting up a set of nested catches bogs
down IDL, since it must always keep track of where it will jump to
when an error occurs. Probably just an over-defined sense of
optimization.

JD

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[Message index]

		Re: IDLVM and retall By: JD Smith on Fri, 08 September 2006 09:35
		Re: IDLVM and retall By: JD Smith on Fri, 08 September 2006 09:30
		Re: IDLVM and retall By: JD Smith on Fri, 08 September 2006 09:26
		Re: IDLVM and retall By: JD Smith on Fri, 08 September 2006 09:12
		Re: IDLVM and retall By: news.qwest.net on Fri, 08 September 2006 09:10
		Re: IDLVM and retall By: btt on Fri, 08 September 2006 09:02
		Re: IDLVM and retall By: news.qwest.net on Fri, 08 September 2006 08:42
		Re: IDLVM and retall By: David Fanning on Fri, 08 September 2006 08:28
		Re: IDLVM and retall By: btt on Fri, 08 September 2006 07:57
		Re: IDLVM and retall By: David Fanning on Thu, 07 September 2006 21:00
		Re: IDLVM and retall By: JD Smith on Thu, 07 September 2006 15:57
		Re: IDLVM and retall By: David Fanning on Thu, 07 September 2006 12:14
		Re: IDLVM and retall By: JD Smith on Thu, 07 September 2006 11:54
		Re: IDLVM and retall By: David Fanning on Thu, 07 September 2006 06:52
		Re: IDLVM and retall By: JD Smith on Thu, 07 September 2006 01:57
		Re: IDLVM and retall By: JD Smith on Wed, 06 September 2006 23:21
		Re: IDLVM and retall By: Foldy Lajos on Wed, 06 September 2006 12:30
		Re: IDLVM and retall By: JD Smith on Wed, 06 September 2006 11:53
		Re: IDLVM and retall By: Foldy Lajos on Tue, 05 September 2006 08:31
		Re: IDLVM and retall By: David Fanning on Fri, 08 September 2006 09:48

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