5 lines
134 B
Haskell
5 lines
134 B
Haskell
|
takeMVar :: MVar a -> IO a
|
||
|
|
putMVar :: MVar a -> a -> IO ()
|
||
|
|
tryTakeMVar :: MVar a -> IO (Maybe a)
|
||
|
|
tryPutMVar :: MVar a -> a -> IO Bool
|