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Make atomicModifyStripe strict #2

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Make atomicModifyStripe strict #2

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2 changes: 1 addition & 1 deletion thread-utils-context/src/Control/Concurrent/Thread/Storage.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -98,7 +98,7 @@ atomicModifyStripe (ThreadStorageMap arr#) tid f = IO $ \s -> go s
let (updatedIntMap, result) = f intMap
in case casArray# arr# stripe# intMap updatedIntMap s1 of
(# s2, outcome, old #) -> case outcome of
0# -> (# s2, result #)
0# -> updatedIntMap `seq` (# s2, result #)
1# -> go s2
_ -> error "Got impossible result in atomicModifyStripe"

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