> So my potential solution for this is: > > NSSpellChecker *checker = [NSSpellChecker sharedSpellChecker]; > __block NSRange range = NSMakeRange(0, 0); > while (range.location < [aString length]) { > > dispatch_sync(dispatch_get_main_queue(), ^{ > range = [checker checkSpellingOfString:aString > startingAt:range.location]; > }); > > // update range > } > > Where this piece of code will run on multiple threads. > > Does this look like a reasonable approach to ensuring thread safety?
In addition to the potential for deadlocking that Mike warned about, it's probably best to be paranoid about +sharedSpellChecker. Hopefully that method uses a thread-safe singleton allocation (eg: via dispatch_once), but you never know. I'd move that method call to the main thread too. However, by using this approach you're not really doing the spell checking work on a background thread. The work is going to be done synchronously on the main thread, blocking your GUI (and whatever else). Maybe you should investigate using -requestCheckingOfString:etc: instead. ~Martin _______________________________________________ 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