Why not use +(void)initialize?

Question

Why not use +(void)initialize?

rpetrich opened this issue 13 years ago · 2 comments

+initialize is guaranteed to be called from inside the Objective-C runtime lock the first time the target class receives a message.

Answer 1 · 2011-09-08T13:25:38.000Z

The current implementation supports teardown and deallocation. If you used initialize you'd only get it called once for the entirety of the application lifetime.

Answer 2 · 2011-09-08T15:53:16.000Z

Unless I've misinterpreted your implementation, purgeSharedInstance is completely unthreadsafe and should only be used on app shutdown anyway. Resurrecting the singleton in that case is of little use.