On Dec 14, 2009, at 9:07 PM, PCWiz wrote:
> So to make it clear, I invoke the method as an NSInvocationOperation then in
> the method I do this whenever I need to access the mutable dictionary:
>
> - (void)doResourceHungryTask {
> ...
> @synchronized (myDictionary) {
> [myDictionary setObject:anObject forKey:@"testKey"];
> }
> }
>
> Is that correct?
You must lock and unlock the dictionary **every** time you read from or write
to it, not just that one time. Otherwise one thread could access it at the same
time as another thread is writing to it, and that would not be good.
Nick Zitzmann
<http://www.chronosnet.com/>
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