[postgis-devel] SimpleGeometryPrecisionReducer

[strk at refractions.net]

On Wed, Dec 22, 2004 at 09:28:50AM +0100, strk at refractions.net wrote:
> On Tue, Dec 21, 2004 at 03:50:46PM -0500, Carl Anderson wrote:
> > 
> > While building a precision reducer function for PostGIS
> > I connected to SimpleGeometryPrecisionReducer in geos
> > 
> > I got Signal 11's from time to time.
> 
> Try commenting out line 162 of geom/util/GeometryEditor.cpp
> --strk;

I've committed a fix for the file, also speeding up
CoordinateFilters operation.

--strk;

> 
> > 
> > valgrind reports
> > 
> > ==11070== malloc/free: in use at exit: 61100 bytes in 106 blocks.
> > ==11070== malloc/free: 279 allocs, 173 frees, 178407 bytes allocated.
> > ==11070== For a detailed leak analysis,  rerun with: --leak-check=yes
> > ==11070== For counts of detected errors, rerun with: -v
> > ==11072== Invalid read of size 4
> > ==11072==    at 0x34F13D24: 
> > geos::GeometryEditor::editGeometryCollection(geos::GeometryCollection 
> > const*, geos::GeometryEditorOperation*) (typeinfo:104)
> > ==11072==    by 0x34F139F6: geos::GeometryEditor::edit(geos::Geometry 
> > const*, geos::GeometryEditorOperation*) (GeometryEditor.cpp:103)
> > ==11072==    by 0x34F21078: 
> > geos::SimpleGeometryPrecisionReducer::reduce(geos::Geometry const*) 
> > (SimpleGeometryPrecisionReducer.cpp:99)
> > ==11072==    by 0x34E8AA3B: GEOSSimplePrecisionReducer 
> > (lwgeom_geos_wrapper.cpp:1676)
> > ==11072==  Address 0x34270E18 is 0 bytes inside a block of size 24 free'd
> > ==11072==    at 0x3414A96F: operator delete(void*) 
> > (vg_replace_malloc.c:156)
> > ==11072==    by 0x34F08AE9: 
> > geos::GeometryCollection::~GeometryCollection() 
> > (GeometryCollection.cpp:266)
> > ==11072==    by 0x34F13D23: 
> > geos::GeometryEditor::editGeometryCollection(geos::GeometryCollection 
> > const*, geos::GeometryEditorOperation*) (GeometryEditor.cpp:162)
> > ==11072==    by 0x34F139F6: geos::GeometryEditor::edit(geos::Geometry 
> > const*, geos::GeometryEditorOperation*) (GeometryEditor.cpp:103)ction() 
> > (GeometryCollection.cpp:266)
> > ==11072==    by 0x34F13D23: 
> > geos::GeometryEditor::editGeometryCollection(geos::GeometryCollection 
> > const*, geos::GeometryEditorOperation*) (GeometryEditor.cpp:162)
> > ==11072==    by 0x34F139F6: geos::GeometryEditor::edit(geos::Geometry 
> > const*, geos::GeometryEditorOperation*) (GeometryEditor.cpp:103)
> > 
> > 
> > C.
> > 
> > -- 
> > Carl Anderson
> > GIS Manager Fulton County, Georgia
> > carl.anderson at co.fulton.ga.us
> > 404.730.8026
> > 
> > 
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