On Sun, Nov 1, 2009 at 9:49 PM, Matt Neuburg <email@hidden> wrote:
> Why (I'm really asking, not arguing; I don't know anything about GCD) is
> this better than the traditional:
It avoids a race condition if +sharedFoo is called simultaneously from
different threads, and it's wicked fast (Cmd-DoubleClick dispatch_once
to see why). It's also got "once" in the name, and is roughly the
same shape as the traditional construction, so switching to it entails
minimal mental burden.
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