:: Ord a => [a] -> [a] -package:ghc -package:witherable -package:base -package:containers -package:base-prelude is:exact -package:errors -package:Cabal package:lifted-base

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