> On Jul 22, 2016, at 19:29 , Graham Cox <graham....@bigpond.com> wrote: >> >> If the worker thread is waiting for -performOnMainThread to complete, it >> *cannot* possibly get a call from the main thread to terminate > > I nodded agreement when I first read this, then “but wait!” … > > Your logic seems flawed on two counts: > > 1. The selector performed by the worker thread may still be queued, so the > main thread is doing something else which may result in an attempt to > terminate the worker thread.
This exactly. We have seen it happen 5 times out of potentially millions of runs. Only recently did we track down what is happening through a lucky report submitted by a customer. T. _______________________________________________ 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
