Re: Deleting Performer subgraphs

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Nicolas Gauvin (nicolas++at++cae.ca)
Tue, 28 Jan 1997 12:10:22 -0500

On Jan 28, 8:24am, Ken Sakai wrote:
> Subject: Deleting Performer subgraphs
>
> Hi,
>
> I have been trying to write a function that would free memory for a
> Performer subgraph given the root node of the subgraph to be deleted.

You don't really need to write such a function since Performer already does it
for you. Using pfDelete on a node which has no parent (ie its ref count is
zero) will free all memory associated to the subgraph under it (if no part of
this subgraph is referenced elsewhere). In other words, Performer will traverse
all its children and call pfDelete on them as well as on their geosets and
whatever else. You might want to consider using pfAsyncDelete in order to have
a separate DBASE process carry out this deletion so it doesn't affect too much
your regular Performer loop.

-- 
Nicolas Gauvin			CAE Electronics Ltd., 8585 Cote De Liesse
Software Developer 		Saint-Laurent, Quebec, Canada, H4L-4X4
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nicolas++at++cae.ca			fax: +1 514 340 5496
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