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

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