Haskell Hierarchical Libraries (stm package) Contents Index

Control.Concurrent.STM.TMVar Portability non-portable (requires STM) Stability experimental Maintainer libraries@haskell.org

Contents TVars

Description

TMVar: Transactional MVars, for use in the STM monad

Synopsis

data TMVar a newTMVar :: a -> STM (TMVar a) newEmptyTMVar :: STM (TMVar a) takeTMVar :: TMVar a -> STM a putTMVar :: TMVar a -> a -> STM () readTMVar :: TMVar a -> STM a swapTMVar :: TMVar a -> a -> STM a tryTakeTMVar :: TMVar a -> STM (Maybe a) tryPutTMVar :: TMVar a -> a -> STM Bool isEmptyTMVar :: TMVar a -> STM Bool

TVars

data TMVar a

newTMVar :: a -> STM (TMVar a)

newEmptyTMVar :: STM (TMVar a)

takeTMVar :: TMVar a -> STM a

putTMVar :: TMVar a -> a -> STM ()

readTMVar :: TMVar a -> STM a

swapTMVar :: TMVar a -> a -> STM a

tryTakeTMVar :: TMVar a -> STM (Maybe a)

tryPutTMVar :: TMVar a -> a -> STM Bool

isEmptyTMVar :: TMVar a -> STM Bool

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