Hi Zach,

The OSG plugins should be closing handles to files once they have
finished read or writing to them, if they aren't then this is a bug
that needs to be addressed.  As others haven't reported the error you
are seeing I would have expected the plugins mostly behave themselves
correctly with respecting to closing handles to files, so perhaps it's
one specific plugin that is a problem, or perhaps something else in
your application is not releasing file handles, or perhaps your OS has
been configured with a small maximum number of file handles.

You say a LOT of times, could you be specific?  Can you recreate the
problem in a small test program?

Robert.



On 18 August 2012 17:06, Zach <zachlen...@gmail.com> wrote:
> Hello,
>
> I am having a image/node loading problem that I really hope someone can help 
> me with. I am using "osgDB::readNodeFile" and "osgDB::readImageFile" a LOT of 
> times during the life time of the program I am working in.  Along side those 
> I setup a "osgDB::ReaderWriter::Options" and set it to cache everything, and 
> I pass that as the second param for the read file calls. I always store 
> returned nodes as a "ref_ptr<osg::Node>".
>
> Now, the problem is after a certain amount of reads I get this error in the 
> console window ... "PNGwriter::readfromfile - ERROR **: Too many open files" 
> ... that followed by more errors saying it can't open the file. After I start 
> getting that error the readNodeFile/readImageFile calls all return NULL.
>
> How do if fix this? Has anyone come across this error? Is there any more 
> information that would be useful to help figure this out? I am afraid I can't 
> share the source code.
>
> Thanks for the reading this, and thanks for any help.
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=49321#49321
>
>
>
>
>
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