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

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