2008.11.24 19:40 "[Tiff] TIFFWriteScanline corrupts buffer when compression
with predication is enabled", by William B Thompson
Thread
2008.11.26 16:54 "Re: [Tiff] Memory leak opening and closing files?", by Frank Warmerdam
the following program shows a constant increase in memory usage, so I suspect a memory leak in the tiff library (using libtiff 3.8.2-1 on Windows):
for (int i = 0; i < 1000000; ++i) {
TIFF *f = TIFFOpen("test.tiff", "rb");
TIFFClose(f);
}where "test.tiff" is generated with (in fact I observed this behavior with many different test files):
Eric,
I have done a similar test on linux with libtiff 3.8.2 and seen no signs of leakage either by running for a long time or when using valgrind on a couple iterations.
This suggests that the problem is either specific to the tif_win32.c platform specific stuff, or that it is an artifact of heap fragmentation that isn't really about libtiff.
I don't have good memory leak identification tools for win32, so I'm not inclined to do the digging on that aspect.
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, warmerdam@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush | Geospatial Programmer for Rent