Modulelifted-base-0.2.3.12Haskell98

Control.Concurrent.QSemN.Lifted

This is a wrapped version of Control.Concurrent.QSemN with types generalised from IO to all monads in MonadBase.

1 type
3 values

Packagelifted-base-0.2.3.12
Exports4
LanguageHaskell98
LicenceBSD-3-Clause
SourceLifted.hs

datadata QSemN

QSemN is a quantity semaphore in which the resource is acquired and released in arbitrary amounts. It provides guaranteed FIFO ordering for satisfying blocked waitQSemN calls.

The pattern

bracket_ (waitQSemN n) (signalQSemN n) (...)

is safe; it never loses any of the resource.

valuenewQSemN :: MonadBase IO m => Int -> m QSemN

Generalized version of newQSemN.

valuewaitQSemN :: MonadBase IO m => QSemN -> Int -> m ()

Generalized version of waitQSemN.

valuesignalQSemN :: MonadBase IO m => QSemN -> Int -> m ()

Generalized version of signalQSemN.