Re: [BLACKBOX] Long running command and Dialog.ShowStatus

From: [at]} <Bob>
Date: Fri, 4 Dec 2009 20:05:52 -0000

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Where is the reference to Dijkstra's loop?

You might find the answer in this article, wherein N Wirth describe the
WHILE construct in Oberon-07
http://www.inf.ethz.ch/personal/wirth/Articles/Oberon/Oberon07.pdf

Bob

> Robert
>
>
> PS - What is "Dijkstra's loop"; even Google doesn't seem to know?
>
>
> >> >-----Original Message-----
> >> >From: BlackBox [mailto:BLACKBOX{([at]})nowhere.xy
> Behalf Of Robert
> >> >Sent: Friday, 4 December 2009 9:04 AM
> >> >
> >> >Surely these problems (apparent hanging of BlackBox, and the fact
> >> >that Ctrl-Break does not work as advertised) can and should be
> >> >solved at a lower level than imposing lots of awkward logic into
> >> >every application?
> >> >
> >>
> >> I suspect not as these problems are *application-specific*
> and under
> >> the control of the application programmer. If you develop a
> >> single-threaded Windows application it can only respond to user
> >> interaction while it is 'idle' and not involved in any other
> >> processing. A relevant article "Using Messages and Message
> Queues" is
> >> at:
> >>
> >> http://msdn.microsoft.com/en-us/library/ms644928(VS.85).aspx
> >>
> >> Note the comment added to the end:
> >>
> >> "Lengthy operations should always be done in a separate thread ...
> >> PeekMessage shouldn't be needed in modern, well-written
> >> applications."
> >>
> >> Regards,
> >> Chris
> >>
> >> --
> >> Chris Burrows
> >> CFB Software
> >> Armaide: ARM Oberon-07 Development System
> >> http://www.cfbsoftware.com/armaide
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Received on Fri Dec 04 2009 - 21:05:52 UTC