:: Ord a => [a] -> [a] -package:singletons -package:integration -package:witherable -package:base is:exact -package:Cabal-syntax -package:imports -package:errors package:lifted-base

Generalized version of runInBoundThread.
Generalized version of runInUnboundThread.
Generalized version of mask_.
Generalized version of uninterruptibleMask_.