Re: Performer and C++

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Jan Barglowski (jan++at++euryale.chinalake.navy.mil)
Wed, 16 Apr 1997 07:57:50 -0700 (PDT)

Robert C Subr wrote:
> I am new at C++ and have a question concerning the PF shared arena. How do I
> setup my user classes so they are defined in the pfsharedarena when the
> operator new is used or deleted from the pfsharedarena when the operator delete
> is called? Or is there another correct way of doing this? Any help or simple
> examples would be greatly appreciated.

Here's what I've done:
myClass *myClassPtr;
myClassPtr = (myClass *) pfMalloc(sizeof(myClass), pfGetSharedArena());

This instances the class in the shared arena. But now that I've reread your
question... I know that some Performer classes, such as pfChannel, are
only instanced in the shared arena, but other classes (forget which) use
a syntax like:
  myClass *myClassPtr = new(pfGetSharedArena()) myClass;

Now if I could only remember which Performer classes are like that! I'll
take a stab at thinking (!) that the "new" operator is overloaded in that
class. Anyone else?

jan

-- 
Jan Anthony Barglowski	              jan++at++chinalake.navy.mil
Real-time Computer Graphics           http://www1.ridgecrest.ca.us/~jan
Naval Air Warfare Center, China Lake  (619) 927-1057
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