    -- | Unlifted "Control.Concurrent.QSem".
    --
    -- @since 0.2.14
    module UnliftIO.QSem
      ( QSem
      , newQSem
      , waitQSem
      , signalQSem
      , withQSem
      ) where

    import Control.Concurrent.QSem (QSem)
    import Control.Monad.IO.Unlift
    import UnliftIO.Exception
    import qualified Control.Concurrent.QSem as Q

    -- | Lifted 'Q.newQSem'.
    --
    -- @since 0.2.14
    newQSem :: MonadIO m => Int -> m QSem
    newQSem :: forall (m :: * -> *). MonadIO m => Int -> m QSem
    newQSem = IO QSem -> m QSem
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO QSem -> m QSem) -> (Int -> IO QSem) -> Int -> m QSem
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . Int -> IO QSem
    Q.newQSem

    -- | Lifted 'Q.waitQSem'.
    --
    -- @since 0.2.14
    waitQSem :: MonadIO m => QSem -> m ()
    waitQSem :: forall (m :: * -> *). MonadIO m => QSem -> m ()
    waitQSem = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> (QSem -> IO ()) -> QSem -> m ()
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . QSem -> IO ()
    Q.waitQSem

    -- | Lifted 'Q.signalQSem'.
    --
    -- @since 0.2.14
    signalQSem :: MonadIO m => QSem -> m ()
    signalQSem :: forall (m :: * -> *). MonadIO m => QSem -> m ()
    signalQSem = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> (QSem -> IO ()) -> QSem -> m ()
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . QSem -> IO ()
    Q.signalQSem

    -- | 'withQSem' is an exception-safe wrapper for performing the
    -- provided operation while holding a unit of value from the semaphore.
    -- It ensures the semaphore cannot be leaked if there are exceptions.
    --
    -- @since 0.2.14
    {-# INLINE withQSem #-}
    withQSem :: MonadUnliftIO m => QSem -> m a -> m a
    withQSem :: forall (m :: * -> *) a. MonadUnliftIO m => QSem -> m a -> m a
    withQSem QSem
    x m a
    io = ((forall a. m a -> IO a) -> IO a) -> m a
    forall b. ((forall a. m a -> IO a) -> IO b) -> m b
    forall (m :: * -> *) b.
    MonadUnliftIO m =>
    ((forall a. m a -> IO a) -> IO b) -> m b
    withRunInIO (((forall a. m a -> IO a) -> IO a) -> m a)
    -> ((forall a. m a -> IO a) -> IO a) -> m a
    forall a b. (a -> b) -> a -> b
    $ \forall a. m a -> IO a
    run ->
      IO () -> IO () -> IO a -> IO a
    forall (m :: * -> *) a b c.
    MonadUnliftIO m =>
    m a -> m b -> m c -> m c
    bracket_ (QSem -> IO ()
    forall (m :: * -> *). MonadIO m => QSem -> m ()
    waitQSem QSem
    x) (QSem -> IO ()
    forall (m :: * -> *). MonadIO m => QSem -> m ()
    signalQSem QSem
    x) (m a -> IO a
    forall a. m a -> IO a
    run m a
    io)