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From: Paul on 18 Jun 2008 21:38
roberson(a)ibd.nrc-cnrc.gc.ca (Walter Roberson) wrote in
message <g3b4t2$f93$1(a)canopus.cc.umanitoba.ca>...
> In article <g3avsm$5si$1(a)fred.mathworks.com>,
> shrithi srivaastav <bharat.k.suthar(a)gmai.com> wrote:
>
> > I have a exe file (dymosim.exe) giving its output to
> >a .mat file. I want to call a matlab function every time
> >the file is updated (new values are appended). Is there any
> >way to do this?
>
> If I recall correctly what I have read, NO, there is no way to
> do that on Windows (which we can deduce you are using by
the file name
> extension), not even with a COM or ActiveX object.
>
> Another poster suggested a busy loop checking file size.
Unless your
> updates are very small, or unless you are willing to put
in a pause()
> noticably longer than the expected time before update,
then you will
> find that approach to be unsatisfactory, because what you want
> to detect is not that the file size has changed, but
rather that
> the other program has *finished* changing the .mat file.
>
> There are some other options, but they depend upon
changing the
> behaviour of dymosim
> --
> "I like to build things, I like to do things. I am having
> a lot of fun." -- Walter
Chrysler


what about using a Matlab timer with a given time delay
(assuming dymosim.exe has an approximate execution time)
that calls the matlab routine after the timer stops.


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