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Problem using sav files. [message #21794]

Thu, 21 September 2000 00:00

Theo Brauers
Messages: 58
Registered: November 1997

Member

Hi experts:

I am stuck with a problem using a sav file:

My program is an widget driven i/o interface for FACSIMILE. It
consists of about 400 functions/routines. When I compile the
whole thing using resolve_all it works fine in this IDL session.
However, when I save the thing ( easy.sav ) and restart IDL using
the easy.sav file it worked fine for a while, then the thing
crashes IDL totally during operation even when I use the same
input data. Restarting IDL with sav file: crash. Restarting
IDL with source compiled: OK. Save and restart: Crash. Rebooting
and repeating gives the same result. I can also reproduce this
behaviour on a different machine, with different user profile.
I had the same behaviour with a previous version of the program
which crashed in the same way at a different location in the
program but I cannot reproduce this again :-|

Does anybody have similar problems? Is there any possibility
to catch an error before IDL crashes?
I am using: { x86 Win32 Windows 5.3.1 Feb 23 2000}

Best regards

Theo

--
----------------------------------------------
Dr. Theo Brauers
Institut fuer Atmosphaerische Chemie (ICG-3)
Forschungszentrum Juelich
52425 JUELICH, Germany
Tel. +49-2461-61-6646 Fax. +49-2461-61-5346
http://www.kfa-juelich.de/icg/icg3/MITARBEITER/th.brauers.ht ml

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Re: Problem using sav files. [message #21871 is a reply to message #21794]

Fri, 22 September 2000 00:00

promashkin
Messages: 169
Registered: December 1999

Senior Member

I would not expect 5.4 to solve this. I was able so far to use restored
routines just as fine as compiled ones in 5.3 and would not be surprised
if the problem carriad over into 5.4. I think it needs to be tracked down.
Leave it alone for a while. At a later time, it might become obvious why
did it do this. This approach worked for me a couple of times.
Cheers,
Pavel

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Re: Problem using sav files. [message #21874 is a reply to message #21794]

Fri, 22 September 2000 00:00

Theo Brauers
Messages: 58
Registered: November 1997

Member

Liam Gumley wrote:
>
>
> The next step would be to reproduce the problem with the fewest lines of
> code.
>
> Cheers,
> Liam.
>
Sounds like hours or days of work. I'll sneak off .......... friday 4:30pm,
weekend, .... When does IDL 5.4 (not beta) show up?

Thanks for your help.

Theo

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Re: Problem using sav files. [message #21945 is a reply to message #21794]

Thu, 05 October 2000 00:00

Theo Brauers
Messages: 58
Registered: November 1997

Member

Theo Brauers wrote:
>
> Hi experts:
>
> I am stuck with a problem using a sav file:
>
> My program is an widget driven i/o interface for FACSIMILE. It
> consists of about 400 functions/routines. When I compile the
> whole thing using resolve_all it works fine in this IDL session.
> However, when I save the thing ( easy.sav ) and restart IDL using
> the easy.sav file it worked fine for a while, then the thing
> crashes IDL totally during operation even when I use the same
> input data. Restarting IDL with sav file: crash. Restarting
> IDL with source compiled: OK. Save and restart: Crash. Rebooting
> and repeating gives the same result. I can also reproduce this
> behaviour on a different machine, with different user profile.
> I had the same behaviour with a previous version of the program
> which crashed in the same way at a different location in the
> program but I cannot reproduce this again :-|
>
> Does anybody have similar problems? Is there any possibility
> to catch an error before IDL crashes?
> I am using: { x86 Win32 Windows 5.3.1 Feb 23 2000}
>
> Best regards
>
> Theo
>
Problem solved! Thanks to all contributors and to Reimar
Bauer. :-)

What was wrong? We use an external routine (dll using fstat)
determining the modification date of files. When we called
this routine with a not existing filename IDL crashes.
However, the reason for invalid filenames was the
HELP, CALL=c procedure giving different results when called
from compiled code or from a sav file.

Try this one:
;- test2.pro ------------
FUNCTION testfunc
HELP, CALL=c
r = DIALOG_MESSAGE(c, /INFO)
RETURN, c
END

PRO test2
c = testfunc()
END
-------------

IDL> .COMPILE test2
IDL> test2
IDL> SAVE, /ROUT, FILE='test2.sav'
IDL> RESTORE, /ROUT, FILE='test2.sav'
IDL> test2

Showing me that SAVE and RESTORE do not exactly restore the
previous session.

Best Theo

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Re: Problem using sav files. [message #21952 is a reply to message #21794]

Wed, 04 October 2000 00:00

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

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