[fpc-devel] Improving Ref Counting

[Jamie McCracken]

Uberto Barbini wrote:
>>6) Whenever an exception is thrown, wait until its either handled or
>>fully propagated and then perform some garbage collection. (traverse the
>>single linked list of all managed objects and for each object check
>>whether anything that references it is still valid and delete if
>>appropriate).
> 
> 
> If so raising an exception will freeze your application, checking some 
> thousand hundreds of lists.

There would be a small delay yes but Pascal is very fast so even 
checking many thousands of lists should only take a few milliseconds on 
a reasonable machine. Dont forget all GCs do this whenever garbage 
allocation is performed.

> And how do you reconnaize a valid reference from an invalid one?
> 

The same way a GC does?

jamie.

> 
> Bye Uberto
> 
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