Safe Haskell	None
Language	Haskell2010

Spago.Async

Synopsis

async :: MonadUnliftIO m => TaskGroup -> m a -> m (Async a)
wait :: MonadIO m => Async a -> m a
waitCatch :: MonadIO m => Async a -> m (Either SomeException a)
cancel :: MonadIO m => Async a -> m ()
withTaskGroup :: MonadUnliftIO m => Int -> (TaskGroup -> m b) -> m b
mapTasks :: Traversable t => TaskGroup -> t (RIO env a) -> RIO env (t a)
data Async a

Documentation

async :: MonadUnliftIO m => TaskGroup -> m a -> m (Async a) #

wait :: MonadIO m => Async a -> m a #

waitCatch :: MonadIO m => Async a -> m (Either SomeException a) #

cancel :: MonadIO m => Async a -> m () #

withTaskGroup :: MonadUnliftIO m => Int -> (TaskGroup -> m b) -> m b #

mapTasks :: Traversable t => TaskGroup -> t (RIO env a) -> RIO env (t a) #

data Async a #

An asynchronous action spawned by async or withAsync. Asynchronous actions are executed in a separate thread, and operations are provided for waiting for asynchronous actions to complete and obtaining their results (see e.g. wait).

Instances

Instances details

Functor Async
Instance details Defined in Control.Concurrent.Async.Pool.Async Methods fmap :: (a -> b) -> Async a -> Async b # (<$) :: a -> Async b -> Async a #
Eq (Async a)
Instance details Defined in Control.Concurrent.Async.Pool.Async Methods (==) :: Async a -> Async a -> Bool # (/=) :: Async a -> Async a -> Bool #
Ord (Async a)
Instance details Defined in Control.Concurrent.Async.Pool.Async Methods compare :: Async a -> Async a -> Ordering # (<) :: Async a -> Async a -> Bool # (<=) :: Async a -> Async a -> Bool # (>) :: Async a -> Async a -> Bool # (>=) :: Async a -> Async a -> Bool # max :: Async a -> Async a -> Async a # min :: Async a -> Async a -> Async a #