[PD] Delete scalars
matju at artengine.ca
Fri Jul 11 02:50:22 CEST 2008
On Thu, 10 Jul 2008, Miller Puckette wrote:
> On Tue, Jul 08, 2008 at 03:04:29AM -0400, Mathieu Bouchard wrote:
>> So, why are singly-linked-lists so crucial to the design of Pd ?
> It's not the list management that's the problem,
I think that this in itself might be a problem.
So, why are singly-linked-lists so crucial to the design of Pd ?
> Currently this is managed by maintaining a per-list "stub" that the
> pointers all check through. one could have such a stub for every
> scalar, but this would add a lot of overhead.
You can get 8589934592 bits for 23$.
> Alternatively, all "gpointers" to a given scalar could register
> themselves somehow, and every time one deleted a scalar one would track
> down every pointer to it through the registration mechanism.
This concept is already named «weak pointer» nearly everywhere.
> I've been unable to convince myself that the machinery could be kept
> lightweight and efficient.
You still need reference counting as much as last time I said it.
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