[Openexr-devel] Memory leaks reading unfinished .exr files

[Schoenberger]

Hi

 

I have an issue with memory leaks if I try to read files that have not been finished writing.

It does not matter if I use the default file reader:
    exrFile = new Imf::InputFile(fileIn,1);
Or if I create a custom Imf::IStream that throws an exception in read():
    exrFile= new Imf::RgbaInputFile(inStream);

 

I get a memory leak of about 200-800KB per file just by calling the above command, which summs

Some cleanup functions in the OpenExr lib are called, but it seems they miss a lot.

 

 

 

To reproduce the issue, cut a .exr file with a hex editor and try to load it.

Example file:

www.BinaryAlchemy.de/ftp_file/RRMaya2016_spheres_fastrender2.exr
Leak information:
www.BinaryAlchemy.de/ftp_file/memleak_customStream.txt
www.BinaryAlchemy.de/ftp_file/memleak_default.txt

 

Has anybody an idea how to solve this issue? 

Note: Of course exrFile->isComplete() does not work as exrFile is NULL after the call to create exrFile.

 

 

Holger Schönberger
technical director
The day has 24 hours, if that does not suffice, I will take the night