Allocating GeoSet stuff from shared

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Scott McMillan (scott++at++ht.com)
Mon, 22 Jul 1996 19:40:55 -0400 (EDT)

This should have a relatively simple solution, but I have been banging
my head against a wall for a while now....

I am trying to create a pfGeoSet consisting of a line segment, and at
some point I do something like the following to allocate an array of two
vertices for the endpoints of the line segment:

   pfVec3 *vertex;
   if (NULL == (force_vertex = new pfVec3[2]))
   {
      cerr << "Unable to pfMalloc vertex list array.\n";
      exit(3);
   }

It works on machines with one CPU, so I had assumed that it allocated these
out of the shared arena. When I move over to the Onyx, I get behaviours that
remind me of shared arena problems -- like the pfVec3 array and its elements
aren't in the shared arena (or little Onyx-gremlins are romping through
memory).

I have also tried using "new(pfGetSharedArena()) .." without luck (it won't
compile).

I have had success by dropping back to 1.2 habits and using pfMalloc:

   if (NULL == (force_vertex = (pfVec3 *) pfMalloc(2*sizeof(pfVec3),
                                                   pfGetSharedArena())))
   {
      ...
   }

but I would really like to know the proper way to do this using new.

Thanks in advance,
scott

-- 
   Scott McMillan, Ph.D.   | Developers of virtual environment
       scott++at++ht.com        | medical and surgical simulations
HIGH TECHSPLANATIONS, INC. | and surgery simulation creation
     http://www.ht.com     | tools.


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