Extra-1.29: A grab bag of modules. Source code Contents Index

Extra.Lock

Synopsis

withLock :: MonadIO m => FilePath -> m a -> m (Either Exception a) awaitLock :: MonadIO m => Int -> Int -> FilePath -> m a -> m (Either Exception a)

Documentation

withLock :: MonadIO m => FilePath -> m a -> m (Either Exception a) Source

awaitLock :: MonadIO m => Int -> Int -> FilePath -> m a -> m (Either Exception a) Source

Like withLock, but instead of giving up immediately, try n times with a wait between each.

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