From: Allan Schaffer (allan++at++sgi.com)
Date: 04/18/2002 19:15:18
Hello Angel,
Ángel García wrote:
> We have made an application with OpenGL Performer on a Linux RedHat 7.2 Kernel 2.4.7-10, dual processor.
> We call:
>
> pfSharedArenaSize(256000000);
> pfInitArenas();
> pfInit();
> pfuInitUtil();
> pfiInit();
> arena=pfGetSharedArena();
>
> at the begin of the program.
>
> We create objects with:
> dcsbag = new pfDCS;
> and we destroy them with:
> pfDelete(dcsbag);
>
> We take the next error:
>
> PF Fatal Resource: pfMemory::new() Unable to allocate enough memory
It's a little unusual to have both pfInitArenas() and pfInit() in the
initialization segment but this probably isn't the problem. The thing
to change is to use the 'delete' operator instead of pfDelete.
Here's an excerpt from the Performer programming guide (ch 22) which
explains a bit more about when to use the delete operator, and when to
use pfDelete:
Creating and Deleting OpenGL Performer Objects
The OpenGL Performer base classes all provide operator new and operator
delete. All libpr and libpf objects, except pfObject, pfMemory, and
their derivatives, must be explicitly created with operator new and
deleted with operator delete. Objects of these classes cannot be created
statically on the stack or in arrays.
All objects of classes derived from pfObject or pfMemory are reference
counted and must be deleted using pfDelete(), rather than the delete
operator. pfDelete() checks the reference count of the object and, when
multiprocessing, delays the actual deletion until other processes are
done with the object. To decrement the reference count and delete with a
single call use pfUnrefDelete().
Note: Public structs such as pfVec3, pfSphere, etc. may be deleted
either with pfDelete() or the delete operator.
The default new operator creates objects in the current shared memory
arena if one exists. libpr objects and public structures have an
additional new operator that takes an arena argument. This new operator
allows allocation from the heap (indicated by an arena of NULL) or from
a shared memory arena created by the application with acreate().
-- Allan Schaffer allan++at++sgi.com Engr. Manager, Core Rendering 1-650-933-2160 Silicon Graphics http://www.sgi.com
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