nonatomic property in model class when using NSOperationQueue (iPhone)?

Posted by Andrew B. on Stack Overflow See other posts from Stack Overflow or by Andrew B.
Published on 2010-06-04T22:58:22Z Indexed on 2010/06/05 8:32 UTC
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Filed under:

iphone

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objective-c

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property

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nsoperation

I have a custom model class with an NSMutableData ivar that will be accessed by custom NSOperation subclasses (using an NSOperationQueue). I think I can guarantee thread-safe access to the ivar from multiple NSOperations by using dependencies, and I can guarantee that I don't access the ivar from other code (say my main app thread) by waiting until the Q has finished all operations.

Should I use a nonatomic property specification, or leave it atomic? Is there a significant impact on performance?

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