IORef package:lifted-base

A mutable variable in the IO monad
Generalized version of atomicModifyIORef.
Generalized version of atomicModifyIORef'.
Generalized version of atomicWriteIORef.
Generalized version of mkWeakIORef. Note any monadic side effects in m of the "finalizer" computation are discarded.
Generalized version of modifyIORef.
Generalized version of modifyIORef'.
Generalized version of newIORef.
Generalized version of readIORef.
Generalized version of writeIORef.