Re: Purpose of [NSAutoreleasePool drain] ?
Re: Purpose of [NSAutoreleasePool drain] ?
- Subject: Re: Purpose of [NSAutoreleasePool drain] ?
- From: email@hidden
- Date: Thu, 16 Jun 2005 17:26:18 +0100 (BST)
- Importance: Normal
> On Jun 16, 2005, at 7:59 AM, Nick Zitzmann wrote:
>> On Jun 16, 2005, at 6:38 AM, Jim Correia wrote:
>>
>>> If the docs are correct, the pool should not be reused after a drain.
>>> If they are wrong, a bug needs to be filed.
>>
>> I just ran a quick test and the docs are correct; -[NSAutoreleasePool
>> drain] and -[NSAutoreleasePool release] appear to do exactly the same
>> thing. So the better question is why was this method added?
>>
>> Nick Zitzmann
>> <http://www.chronosnet.com/>
>
> The method was added as an alternate name for possible future Garbage
> Collection purposes, as retain/release methods would become no-ops
> across the board. The next question would then be: why would
> autorelease pools be interesting in a GC environment? The answer is:
> the pool usage in existing source code (at the hypothetical future time
> of GC availability) might be useful as possible hints to the collector
> that "now would be a good time to do a little collecting".
>
> But GC isn't here yet (as of Tiger), and who knows if it will ever
> happen. We don't expect people to be using -drain today, and I would
> advise against it (in case it takes on some new behaviors in the
> future).
>
Perhaps you should let the WebKit team know this. It was the few uses of
it in their source that got me interested in the first place.
Matt Gough
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