[gdal-dev] Kernel resource leak -- Windows

[Even Rouault]

Le lundi 30 septembre 2013 00:59:33, Joaquim Luis a écrit :
> Hi,
> 
> I can make a ticket with this but before, let me just report it here.
> 
> - Win 64 bits GDAL build
> 
> While playing with an Intel analysis tool to chase GMT memory leaks I
> got two complains respecting GDAL.
> 
> P1: Error: Kernel resource leak
>   P1.55: Kernel resource leak: New
>    c:\programs\gdaltrunk\gdal\port\cpl_multiproc.cpp(626): Error X63:
> Critical section creation site: Function CPLCreateMutex: Module
> C:\progs_cygw\GMTdev\gmt5\trunk\WIN64\bin\gdal_w64.dll
>    Code snippet:
>     624      if( pcs )
>     625      {
> 
>  >626        InitializeCriticalSectionAndSpinCount(pcs, 4000);
> 
>     627        EnterCriticalSection(pcs);
>     628      }
> 
> The MS Help says that this can be solved with a call
> to'FindCloseChangeNotification'

MSDN doesn't mention FindCloseChangeNotification as a valid function to call 
related to the use of InitializeCriticalSectionAndSpinCount.

Is it really a repeated memory leak (something that will be leaked each time 
you call CPLCreateMutex() - with correctly paired CPLDestroyMutex() - and that 
will end up exhausting memory / kernel ressources ) or just a one time memory 
leak (something that a tool like valgrind would report as 'still reachable' at 
the end of the process) due to one of the main "static" GDAL mutex not being 
freed ?

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