:: Ord a => [a] -> [a] -package:focus -is:exact -is:exact -package:basement -package:base -package:Cabal -package:Cabal-syntax is:exact package:lifted-base

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