:: Ord a => [a] -> [a] -package:witherable -package:containers -is:exact -package:Cabal -package:mono-traversable -package:errors -package:extra package:lifted-base is:exact

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