Safe Haskell	Safe-Inferred
Language	Haskell2010

UnliftIO.AutoUpdate.Internal

Contents

Debugging

Synopsis

data UpdateState m a = UpdateState {
- usUpdateAction_ :: a -> m a
- usLastResult_ :: IORef a
- usIntervalMicro_ :: Int
- usTimeHasCome_ :: TVar Bool
- usDeleteTimeout_ :: IORef (m ())
}
mkClosableAutoUpdate :: MonadUnliftIO m => UpdateSettings m a -> m (m a, m ())
mkClosableAutoUpdate' :: MonadUnliftIO m => UpdateSettings m a -> m (m a, m (), UpdateState m a)

Debugging

data UpdateState m a Source #

Constructors

UpdateState
Fields usUpdateAction_ :: a -> m a usLastResult_ :: IORef a usIntervalMicro_ :: Int usTimeHasCome_ :: TVar Bool usDeleteTimeout_ :: IORef (m ())

mkClosableAutoUpdate :: MonadUnliftIO m => UpdateSettings m a -> m (m a, m ()) Source #

>>> iref <- newIORef (0 :: Int)
>>> action = modifyIORef iref (+ 1) >> readIORef iref
>>> (getValue, closeState) <- mkClosableAutoUpdate $ defaultUpdateSettings { updateFreq = 200_000, updateAction = action }
>>> getValue
1
>>> threadDelay 100_000 >> getValue
1
>>> threadDelay 200_000 >> getValue
2
>>> closeState

mkClosableAutoUpdate' :: MonadUnliftIO m => UpdateSettings m a -> m (m a, m (), UpdateState m a) Source #

provide UpdateState for debugging