Use atomic instead of a shared mutex for DFA.s0#3313
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that sounds right to me as we did very little locking in java version. Particularly when all we did was switch a pointer. |
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A shared mutex is kind of heavyweight when we are essentially replicating
volatilefrom Java which is ultimately an atomic load/store. This change switches Go to use the equivalent, atomic.StorePointer and atomic.LoadPointer.