readIORef -package:dejafu

readIORef :: IORef a -> IO a

base Data.IORef GHC.IORef, ihaskell IHaskellPrelude, ghc-internal GHC.Internal.Data.IORef GHC.Internal.IORef, rebase Rebase.Prelude

Read the value of an IORef. Beware that the CPU executing a thread can reorder reads or writes to independent locations. See Data.IORef#memmodel for more details.

readIORef :: MonadIO m => IORef a -> m a

unliftio UnliftIO.IORef

Lifted readIORef.

readIORef :: MonadBase IO m => IORef a -> m a

lifted-base Data.IORef.Lifted

Generalized version of readIORef.

readIORef :: MonadIO m => IORef a -> m a

relude Relude.Lifted.IORef

Lifted version of readIORef.

>>> ref <- newIORef 42

>>> readIORef ref
42

readIORef :: IORef a -> IO a

base-prelude BasePrelude

Read the value of an IORef

readIORef :: Unbox a => IORef a -> IO a

streamly-core Streamly.Internal.Data.IORef

Read a value from an IORef. Pre-release

readIORef :: Unbox a => IORef a -> IO a

streamly-core Streamly.Internal.Data.MutArray

Deprecated: Use readIORef from MutByteArray module.

readIORef :: MonadConc m => IORef m a -> m a

concurrency Control.Concurrent.Classy.IORef Control.Monad.Conc.Class

Read the current value stored in a reference.

readIORef ioref = readForCAS ioref >>= peekTicket

readIORefU :: Prim a => IORefU a -> IO a

unboxed-ref Data.IORef.Unboxed

Read the value of an IORefU

readIORef' :: IORef' a -> IO a

strict-mutable-base Data.IORef.Strict

readIORef for IORef'.