:: Ord a => [a] -> [a] -package:statistics -is:exact -package:lens is:exact -package:safe -package:base -package:witherable -package:imports -package:integration package:lifted-base

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