Manatee.Toolkit.General.STM

Documentation

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

Read an STM variable, apply some transformation function to it, and write the transformed value back to the same variable.

modifyTVarIO :: TVar a -> (a -> a) -> IO ()

The IO version of modifyTVar.

replaceTVarField :: a -> a -> (a -> TVar b) -> IO ()

Replace TVar field.

modifyTVarIOM :: TVar a -> (a -> IO a) -> IO ()

The IO version of modifyTVar.

writeTVarIO :: TVar a -> a -> IO ()

The IO version of writeTVar.

tickTVar :: TVar Int -> STM Int

Ticket TVar.

tickTVarIO :: TVar Int -> IO Int

Like tickTVar but output with io monad.

crockTVar :: TVar Int -> STM Int

Crock TVar.

crockTVarIO :: TVar Int -> IO Int

Like crockTVar but output with io monad.

queryTVarIO :: TVar a -> (a -> b) -> IO b

Query TVar with some function.

dupTChanIO :: TChan a -> IO (TChan a)

dupTChanIO

readTChanIO :: TChan a -> IO a

readTChanIO

writeTChanIO :: TChan a -> a -> IO ()

writeTChanIO