Ok, I think I understand this after reading this document: http://developer.apple.com/mac/articles/cocoa/managingconcurrency.html
So to make it clear, I invoke the method as an NSInvocationOperation then in the method I do this whenever I need to access the mutable dictionary: - (void)doResourceHungryTask { ... @synchronized (myDictionary) { [myDictionary setObject:anObject forKey:@"testKey"]; } } Is that correct? On 2009-12-14, at 9:03 PM, Nick Zitzmann wrote: > > On Dec 14, 2009, at 8:59 PM, PCWiz wrote: > >> "doResourceHungryTask" would be a method in my delegate class. Would I still >> need to lock/unlock (I'm modifying the class's properties from itself, not >> another class)? I'm not sure on the exact workings of NSInvocationOperation, >> I just found out about it. > > Yes, because any operation you enqueue is going to run in a background > thread, and NSMutableDictionary is not thread-safe. > > Nick Zitzmann > <http://www.chronosnet.com/> > > > _______________________________________________ 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