> On Sep 26, 2015, at 11:19 AM, Programmingkid <programmingk...@gmail.com> > wrote: > > I just wish there were an easy way for the a task on the main thread to > continue to work even if the user is looking at a menu. Using multiple > threads has a lot of problems associated with it.
Well, it kind of goes without saying that if you want to do multiple independent tasks at the same time, you need multiple threads. The event-loop-based model used by AppKit/UIKit is a way of taming some of the complexity of threads, by using a cooperative scheduling model for UI tasks. I’ve worked on GUI frameworks that allowed any thread to do anything at any time, and deadlocks and race conditions were constant problems. But anyway, if you’ve got a main-thread task that does its work incrementally via a timer or whatnot, it can continue to work while a menu is active as long as you use the correct runloop mode. —Jens _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
