On May 28, 2009, at 12:13 PM, Ben Einstein wrote:
Thanks for the advice, I had actually tried that as well to no avail.After playing around a bit, I'm fairly certain I've solved it, although I'm not really sure why it was a problem. At the top of the worker method, I was locking the NSManagedObjectContext and unlocking it just before return, but all the NSManagedObject stuff should be happening on a separate thread. I'll try to track that down in a minute, but it appears that was blocking the main thread. I suppose I should have asked Instruments before asking you all.
Hi Ben,FYI, sharing an NSManagedObjectContext between threads is discouraged ("strongly discouraged" according the the docs). The recommended approach is to create separate contexts on each thread, which might help avoid problems like you've just had:
<http://developer.apple.com/documentation/Cocoa/Conceptual/CoreData/Articles/cdMultiThreading.html >
Jason
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