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1. asMutVar :: MutVar s a -> MutVar s a

   classy-prelude-yesod	ClassyPrelude.Yesod

   Since 0.2.0

2. atomicModifyMutVar :: PrimMonad m => MutVar (PrimState m) a -> (a -> (a, b)) -> m b

   classy-prelude-yesod	ClassyPrelude.Yesod

   Atomically mutate the contents of a MutVar. This function is useful for using MutVar in a safe way in a multithreaded program. If you only have one MutVar, then using atomicModifyMutVar to access and modify it will prevent race conditions. Extending the atomicity to multiple MutVars is problematic, so if you need to do anything more complicated, using MVar instead is a good idea. atomicModifyMutVar does not apply the function strictly. This means if a program calls atomicModifyMutVar many times, but seldom uses the value, thunks will pile up in memory resulting in a space leak. To avoid this problem, use atomicModifyMutVar' instead.

3. atomicModifyMutVar' :: PrimMonad m => MutVar (PrimState m) a -> (a -> (a, b)) -> m b

   classy-prelude-yesod	ClassyPrelude.Yesod

   Strict version of atomicModifyMutVar. This forces both the value stored in the MutVar as well as the value returned.

4. mkWeakTVar :: MonadUnliftIO m => TVar a -> m () -> m (Weak (TVar a))

   classy-prelude-yesod	ClassyPrelude.Yesod

   Lifted version of mkWeakTVar

5. modifyMutVar :: PrimMonad m => MutVar (PrimState m) a -> (a -> a) -> m ()

   classy-prelude-yesod	ClassyPrelude.Yesod

   Mutate the contents of a MutVar. modifyMutVar does not apply the function strictly. This means if a program calls modifyMutVar many times, but seldom uses the value, thunks will pile up in memory resulting in a space leak. To avoid this problem, use modifyMutVar' instead.

6. modifyMutVar' :: PrimMonad m => MutVar (PrimState m) a -> (a -> a) -> m ()

   classy-prelude-yesod	ClassyPrelude.Yesod

   Strict version of modifyMutVar.

7. modifyTVar :: TVar a -> (a -> a) -> STM ()

   classy-prelude-yesod	ClassyPrelude.Yesod

   Mutate the contents of a TVar. N.B., this version is non-strict.

8. modifyTVar' :: TVar a -> (a -> a) -> STM ()

   classy-prelude-yesod	ClassyPrelude.Yesod

   Strict version of modifyTVar.

9. mutVarFromIORef :: IORef a -> MutVar RealWorld a

   classy-prelude-yesod	ClassyPrelude.Yesod

   Convert MutVar to IORef

10. mutVarFromSTRef :: STRef s a -> MutVar s a

    classy-prelude-yesod	ClassyPrelude.Yesod

    Convert MutVar to STRef

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