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Re: custom memory allocations


On Sep 30, 2005, at 12:53 PM, Ladd Van Tol wrote:
So I'm curious -- how is the retain count handled? I know that it's stored externally, but is it implicitly 1 on a new allocation?

Yes. The core functions for this are for 'extra ref counts' (NSDecrementExtraRefCountWasZero, in particular). You can, of course, put your ref count (or low order bits) inline in your object to save on memory in the external table (and more expensive implementation). Standard caveats about threading and locking apply :)

-tim

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References: 
 >custom memory allocations (From: Niko Matsakis <email@hidden>)
 >Re: custom memory allocations (From: Greg Parker <email@hidden>)
 >Re: custom memory allocations (From: Ladd Van Tol <email@hidden>)



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