Data.RoundRobin

Documentation

data RoundRobin a

A simple round-robin table useful for selecting resource using round-robin fashion.

Instances

Eq (RoundRobin a)

Methods

(==) :: RoundRobin a -> RoundRobin a -> Bool

(/=) :: RoundRobin a -> RoundRobin a -> Bool

newRoundRobin :: NonEmpty a -> IO (RoundRobin a)

create a round-robin table from list.

If list is empty, an error will be raised. will use NonEmpty in future(ghc 8 are widely used).

select :: RoundRobin a -> IO a

select an item from round-robin table.

set :: RoundRobin a -> NonEmpty a -> IO ()

set a new round-robin table.