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djkskqyr3/gist:aaf9c91f72658ff16fe1

Created December 14, 2014 08:26
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  1. James Chan created this gist Dec 14, 2014.
    3 changes: 3 additions & 0 deletions gistfile1.txt
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    With "atomic", the synthesized setter/getter will ensure that a whole value is always returned from the getter or set by the setter, regardless of setter activity on any other thread. That is, if thread A is in the middle of the getter while thread B calls the setter, an actual viable value -- an autoreleased object, most likely -- will be returned to the caller in A.

    In nonatomic, no such guarantees are made. Thus, nonatomic is considerably faster than "atomic".