[geos-devel] initGEOS/finishGEOS and multiple subsystems

[strk at refractions.net]

On Fri, Jun 30, 2006 at 11:17:20PM +0200, Mateusz Loskot wrote:
> strk at refractions.net wrote:
> > On Fri, Jun 30, 2006 at 10:30:21PM +0200, Mateusz Loskot wrote:
> >> strk at refractions.net wrote:
> >>> With GEOS-3.0.0 initGEOS/finishGEOS do not instantiate/delete a 
> >>> GeometryFactory anymore. Rather the default GeometryFactory is 
> >>> used. This should fix the problem.
> >> What about backport to 2.2.x with ref-counted proposal? Such 
> >> changes could would not affect existing code.
> > 
> > Ok with me.
> > 
> >> I'd like to repeat that in general, global factory should be 
> >> replaced with shared object (e.g. managed by shared_ptr from Boost 
> >> or our own home-made shared smart pointer). static factory can 
> >> cause problems too: 
> >> http://www.parashift.com/c++-faq-lite/ctors.html#faq-10.12
> > 
> > We're using "construct on first use" idiom if I'm not wrong (see faq 
> > 10.13).
> 
> Yes, we are.
> But we still need to be careful:
> http://www.parashift.com/c++-faq-lite/ctors.html#faq-10.14

I was waiting for this answer :)
I don't think anyone's destructor is relying on GeometryFactory use.

--strk;