2014/10/15 下午 10:13:07

iphone Programming Glossary: race

NSURLConnection still calls delegate AFTER cancel method has been called

http://stackoverflow.com/questions/2503652/nsurlconnection-still-calls-delegate-after-cancel-method-has-been-called

connection's delegate still gets called which crashes the app . Googling around it looks like the problem here is a race condition in the runloop I cancel the connection and release the delegate but before the runloop cycles it calls the delegate..

Generic approach to NSManagedObjectContext in multi-threaded application

http://stackoverflow.com/questions/3474960/generic-approach-to-nsmanagedobjectcontext-in-multi-threaded-application

removeObjectForKey threadKey This compiles and seems to work but I know threading problems can be tricky due to race conditions. Does anybody see a problem with this approach Also I'm using this from within the context of an asynchronous..

What are the Dangers of Method Swizzling in Objective C?

http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c

concurrency if you do your swizzling here. If you were to swizzle in void initialize however you could end up with a race condition in your swizzling implementation and the runtime could end up in a weird state. Changes behavior of un owned code.. This one's already been solved Difficult to debug One of the confusions during debugging is seeing a strange backtrace where the swizzled names are mixed up and everything gets jumbled in your head. Again the alternative implementation addresses.. jumbled in your head. Again the alternative implementation addresses this. You'll see clearly named functions in backtraces. Still swizzling can be difficult to debug because it's hard to remember what impact the swizzling is having. Document..

Version vs build in XCode 4

http://stackoverflow.com/questions/6851660/version-vs-build-in-xcode-4

1 . Back on the Build Phases tab drag and drop your Run Script phase after the Copy Bundle Resources phase to avoid a race condition when trying to both build and update the source file that includes your build number. Note that with the agvtool..

wait_fences: failed to receive reply: 10004003 (Again)

http://stackoverflow.com/questions/8994998/wait-fences-failed-to-receive-reply-10004003-again

the stupid warning again. For doing no actual work at all. I can only conclude that there is some sort of internal iOS race condition that I am triggering when I cram extra code into the init method of KeyPad . And that there is nothing I can do.. would happen outside of what ever it is that is causing the problem. My gut feeling is that I am butting up against a race condition within the loadView of Calc and some internal iOS activity. If I do too much work inside loadView then I cross..