Control.Concurrent.STM.TMonoid

Documentation

data TMonoid m

a concurrent STM Monoid

writeTMonoid :: TMonoid m -> m -> STM ()

mappend the value

readTMonoid :: TMonoid m -> STM m

peek the monoid and reset it

newDelayedTMonoid

Arguments

:: (Monoid m, Eq m)

=> Int

number of empty mappends before allowing the read

-> STM (TMonoid m)

a delayed TMonoid

create a TMonoid for a comparable Monoid. The created TMonoid waits for an empty update to release a read