On Sep 26, 2015, at 3:19 PM, Jens Alfke wrote: > >> 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
What is the right runloop mode to use? _______________________________________________ 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
