I can't tell. I don't believe I have any unreferenced MOCs. > On Mar 27, 2019, at 13:08 , Dave Fernandes <dave.fernan...@utoronto.ca> wrote: > > Just to clarify, the moc exists, but the reference to it is nil? Or has the > moc, itself, been deallocated? > >> On Mar 27, 2019, at 3:40 PM, Rick Mann <rm...@latencyzero.com> wrote: >> >> This is proving very hard to diagnose, as it doesn't always happen. I tried >> observing -managedObjectContext, but it never gets called with a nil value. >> Moreover, my entity's -dealloc method is sometimes called even though none >> of the -awake methods gets called. This is a complex app with a lot of async >> operation, so this entity gets created and destroyed often, making it that >> much harder to figure out exactly what's going on. >> >> I can bulletproof the place where the crash occurs when the moc is nil, but >> I'd really like to track down the underlying problem. >> >>> On Mar 27, 2019, at 12:17 , Mike Abdullah <mabdul...@karelia.com> wrote: >>> >>> Given the number of objects Core Data is designed to juggle, managing that >>> number of weak references might well affect performance. Besides, wouldn’t >>> you still the same result, that your object has a nil reference to the >>> context because the context has been deallocated? >>> >>> Furthermore, I think you can also observe this affect on deleted objects >>> once the context has been saved, if you’re still holding a reference to any >>> such objects. >>> >>> Mike. >>> >>> Sent from my iPhone >>> >>>> On 26 Mar 2019, at 21:57, Rick Mann <rm...@latencyzero.com> wrote: >>>> >>>> The implication there is that an object has a weak reference to the MOC? >>>> Ah, in the header I see it's `assign`. I wonder why they do that and not >>>> `weak`. >>>> >>>> Thanks, I'll look into it. >>>> >>>>> On Mar 26, 2019, at 14:50 , Richard Charles <rcharles...@gmail.com> wrote: >>>>> >>>>> You have retained the managed object outside the managed object context. >>>>> >>>>> --Richard Charles >>>>> >>>>> >>>>>> On Mar 26, 2019, at 1:04 PM, Rick Mann <rm...@latencyzero.com> wrote: >>>>>> >>>>>> I'm seeing a situation where my NSManagedObject's managedObjectContext >>>>>> is nil. It doesn't happen all the time though. Any idea why? Thanks! >>>>>> >>>>>> -- >>>>>> Rick Mann >>>>>> rm...@latencyzero.com >>>>> >>>> >>>> >>>> -- >>>> Rick Mann >>>> rm...@latencyzero.com >>>> >> >> >> -- >> Rick Mann >> rm...@latencyzero.com >
-- Rick Mann rm...@latencyzero.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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
