Yeah sounds like the exact same problem I'm having. The problems aren't consistent at all, it just happens once every few thousand strings.
Is there any easy way to execute a portion of code on the main thread without going through the mess of delegates and selectors? Independent Cocoa Developer, Macatomy Software http://macatomy.com On 2009-12-22, at 12:06 PM, Chris Backas wrote: > Hello, > > NSAttributedString has proven to be unsafe in many ways for use on a > secondary thread in our own applications. We were trying to do much the same > thing, get the size of a string from it. But it turns out (obviously in > retrospect) that it needs to use the font/GUI systems to do this, which don't > seem to be safe for use on secondary threads. > > My guess is that it's accessing locks in the Layout manager that aren't > intended to be accessed from the non-main thread and causing this error. > Unless someone else has more insight than I do, you'll have to come up with > an alternative way to architect this - we had to do all our string measuring > on the main thread. (We were actually getting occasional crashes from doing > this on a secondary thread, maybe once every 30K strings or so) > > Hope that helps some, > Chris Backas _______________________________________________ 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
