:: Ord a => [a] -> [a] -package:focus -package:errors -package:ghc -package:Cabal -package:Cabal-syntax -package:mono-traversable package:lifted-base is:exact

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