Safe Haskell	Safe-Inferred
Language	Haskell2010

Distribution.Client.Compat.Semaphore

Synopsis

data QSem
newQSem :: Int -> IO QSem
waitQSem :: QSem -> IO ()
signalQSem :: QSem -> IO ()

Documentation

data QSem Source #

QSem is a quantity semaphore in which the resource is acquired and released in units of one. It provides guaranteed FIFO ordering for satisfying blocked waitQSem calls.

Instances

Instances details

Eq QSem Source #
Instance details Defined in Distribution.Client.Compat.Semaphore Methods (==) :: QSem -> QSem -> Bool # (/=) :: QSem -> QSem -> Bool #

newQSem :: Int -> IO QSem Source #

waitQSem :: QSem -> IO () Source #

signalQSem :: QSem -> IO () Source #