comp.lang.idl-pvwave archive: archive » Re: Problem when reading many HDF-EOS file

Home » Public Forums » archive » Re: Problem when reading many HDF-EOS file

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Problem when reading many HDF-EOS file [message #49234 is a reply to message #49150]

Wed, 05 July 2006 07:19

savoie
Messages: 68
Registered: September 1996

Member

Roni,

I'm tending to agree with kuyper on this one.

kuyper@wizard.net writes:

> Roni Drori wrote:
>> Hi,
>> I have an IDL program that reads many HDF-EOS file (using EOS_GD_OPEN
>> ....). When I'm reading more the ~100 files the program stops unable to
>> open more files.
>> What can be done to avoid this problem? (I'm reading simultaneously
>> only one file and then closing it with EOS_GD_close)
>
> If you never read more than one file at a time, I'd suspect a memory
> leak. The HDF-EOS functions contain lots of pairs of book-end
> functions: if you open something, you should close it. If you attach
> something, you should make sure to detach it, etc.. In general, the
> first one of each pair allocates resources (usually including memory),
> and the second function must be called to deallocate them; if it isn't,
> you have a resource leak. Check all of your calls to such functions,
> and make sure that they're matched up properly.

I had this problem with EOS_GD_ATTACH, in the documentation, there is not a
link to the opposing call EOS_GD_DETACH. Make sure your swath and grid
attatches are detatched before closing the file. Although closing the file
seems like it should clean up the open handles, it doesn't.

Hope this helps.

Matt

--
Matthew Savoie - Scientific Programmer
National Snow and Ice Data Center
(303) 735-0785 http://nsidc.org

Report message to a moderator

[Message index]

		Re: Problem when reading many HDF-EOS file By: Maarten[1] on Tue, 04 July 2006 01:33
		Re: Problem when reading many HDF-EOS file By: peter.albert@gmx.de on Mon, 03 July 2006 23:38
		Re: Problem when reading many HDF-EOS file By: James Kuyper on Mon, 03 July 2006 07:30
		Re: Problem when reading many HDF-EOS file By: savoie on Wed, 05 July 2006 07:19

Previous Topic:	objects and widgets
Next Topic:	Re: Thinning image morphological operator

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 01:08:10 PDT 2025

Total time taken to generate the page: 1.28270 seconds