From: Yair Kurzion (yair++at++polygon.engr.sgi.com)
Date: 07/19/2000 11:43:38
Hi Paul !
pfDelete(g) is the correct way to do this. However, Performer processes
executes delete requests on pfUpdatables (pfGeode is a pfUpdatable) a few
frames after the call to pfDelete (in simple cases - 3 frames after).
Since you don't call pfFrame in your loop, the memory is not deleted.
Common applications call pfDelete on some scene graph nodes when needed, and
then call pfFrame to draw the next frame.
-yair
> Somebody suggested that I try pfDelete(g). This doesn't work on
> either Linux or IRIX!
>
> "delete g" works on IRIX, but not on Linux.
>
> -PAul
>
> ----------------------------------------------------------------------
> Paul J. Rajlich - prajlich++at++ncsa.uiuc.edu
> Visualization and Virtual Environments
> National Center for Supercomputing Applications
> http://brighton.ncsa.uiuc.edu/~prajlich/
> ----------------------------------------------------------------------
>
> On Tue, 18 Jul 2000, Paul John Rajlich wrote:
>
> >
> > Hi pfPeople,
> >
> > I'm having problems deleting pfGeoSets in pfLinux. To illustrate
> > the problem, I've written a small program. The following code behaves
> > well on my Octane:
> >
> > int main() {
> >
> > pfInit();
> > pfMultiprocess(PFMP_DEFAULT);
> > pfConfig();
> >
> > pfGeode *geode = new pfGeode();
> >
> > for (int i=0; i<1000; i++) {
> > cout << i << " ";
> > cout.flush();
> > pfGeoSet *g = pfdNewSphere(10000, pfGetSharedArena());
> > geode->addGSet(g);
> > geode->removeGSet(geode->getGSet(0));
> > delete g;
> > }
> >
> > pfExit();
> > return 0;
> > }
> >
> > However, on Linux it fills up the heap. In the Linux version I use
> > NULL instead of pfGetSharedArena().
> >
> > I have found that something like this works:
> >
> > pfVec3 *verts, *norms;
> > pfVec4 *colors;
> > ushort *dummy;
> > g->getAttrLists(PFGS_COORD3, (void **)&verts, &dummy);
> > g->getAttrLists(PFGS_NORMAL3, (void **)&norms, &dummy);
> > g->getAttrLists(PFGS_COLOR4, (void **)&colors, &dummy);
> > int *lengths = g->getPrimLengths();
> > pfFree(pfGetMemory(verts));
> > pfFree(pfGetMemory(norms));
> > pfFree(pfGetMemory(colors));
> > pfFree(pfGetMemory(lengths));
> >
> > but that's rather painful.
> >
> > Any ideas?
> >
> > -Paul
> >
> > ----------------------------------------------------------------------
> > Paul J. Rajlich - prajlich++at++ncsa.uiuc.edu
> > Visualization and Virtual Environments
> > National Center for Supercomputing Applications
> > http://brighton.ncsa.uiuc.edu/~prajlich/
> > ----------------------------------------------------------------------
> >
> > -----------------------------------------------------------------------
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> >
>
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--
\_________ \_____ \__ \__ \_____ Yair Kurzion
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