Completion block is not called

[cyril94440]

Hey,

I have a problem with the library.
Sometimes the completion block of objectForKey is never called.
It seems that the dispatch_async doesn't work in TMDiskCache.

[cyril94440]

It seems that everything is working correctly until I reboot the app. Any clue ?

[medvedNick]

I've encountered the same behavior.

If you look at - (id)objectForKey:(NSString *)key method of TMCache which calls - (void)objectForKey:(NSString *)key block:(TMCacheObjectBlock)block, you'll see that the first method sets dispatch_semaphore_t semaphore which is unlocked in the completion of the second method.

However, not every branch of the second method calls completion block. That causes deadlock on the whole thread.

I am not able to say if it is mistake in my code or in TMCache, but this might be helpful for whoever will be stuck at staring at tons of deadlocked threads in debugger like me.