Control.Concurrent.STM.Map

Documentation

data Map k v

A map from keys k to values v.

empty :: STM (Map k v)

O(1). The empty map.

insert :: (Eq k, Hashable k) => k -> v -> Map k v -> STM ()

lookup :: (Eq k, Hashable k) => k -> Map k v -> STM (Maybe v)

delete :: (Eq k, Hashable k) => k -> Map k v -> STM ()

phantomLookup :: (Eq k, Hashable k) => k -> Map k v -> STM (Maybe v)

unsafeDelete :: (Eq k, Hashable k) => k -> Map k v -> IO ()