On 28/01/2010, at 8:51 AM, Scott Ribe wrote: > The code you posted has a race condition, and can create multiple instances > when called from different threads.
Ah, that's different. I understood you to mean that it ALWAYS created multiple instances. Any threaded programming requires a lot of care, this is no exception. The Cocoa Fundamentals Guide has a section on creating a true singleton - I thought it also dealt with thread safety but having just looked it up it doesn't. --Graham _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
