:: Ord a => [a] -> [a] -package:Glob -package:containers -package:integration -package:ghc -package:statistics -package:errors -package:extra -package:safe is:exact package:lifted-base

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