Re: Purpose of [NSAutoreleasePool drain] ?
Re: Purpose of [NSAutoreleasePool drain] ?
- Subject: Re: Purpose of [NSAutoreleasePool drain] ?
- From: Chris Kane <email@hidden>
- Date: Thu, 16 Jun 2005 09:08:24 -0700
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).
Chris Kane
Cocoa Framework, Apple
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