fay-base-0.21.1.0: The base package for Fay.

Safe Haskell	None
Language	Haskell98

Data.Mutex

Description

A trivial mutex.

Synopsis

data Mutex = Mutex (Var Bool)
newMutex :: Fay Mutex
ifMutexFree :: Mutex -> Fay () -> Fay ()
whenMutexFree :: Mutex -> Fay () -> Fay ()
lockMutex :: Mutex -> (Fay () -> Fay a) -> Fay a

Documentation

data Mutex #

Constructors

Mutex (Var Bool)

newMutex :: Fay Mutex #

Make a new unlocked mutex.

ifMutexFree :: Mutex -> Fay () -> Fay () #

If a mutex is free run the action, otherwise don't.

whenMutexFree :: Mutex -> Fay () -> Fay () #

Wait until the mutex is free to do something.

lockMutex :: Mutex -> (Fay () -> Fay a) -> Fay a #

Lock the given mutex until I'm done with it.