Hoogle Search

Within LTS Haskell 24.38 (ghc-9.10.3)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. touchForeignPtr :: MonadIO m => ForeignPtr a -> m ()

   unliftio	UnliftIO.Foreign

   Lifted touchForeignPtr.

2. unsafeForeignPtrToPtr :: ForeignPtr a -> Ptr a

   unliftio	UnliftIO.Foreign

   This function extracts the pointer component of a foreign pointer. This is a potentially dangerous operations, as if the argument to unsafeForeignPtrToPtr is the last usage occurrence of the given foreign pointer, then its finalizer(s) will be run, which potentially invalidates the plain pointer just obtained. Hence, touchForeignPtr must be used wherever it has to be guaranteed that the pointer lives on - i.e., has another usage occurrence. To avoid subtle coding errors, hand written marshalling code should preferably use withForeignPtr rather than combinations of unsafeForeignPtrToPtr and touchForeignPtr. However, the latter routines are occasionally preferred in tool generated marshalling code.

3. withForeignPtr :: MonadUnliftIO m => ForeignPtr a -> (Ptr a -> m b) -> m b

   unliftio	UnliftIO.Foreign

   Unlifted withForeignPtr.

4. hWaitForInput :: MonadIO m => Handle -> Int -> m Bool

   unliftio	UnliftIO.IO

   Lifted version of hWaitForInput

5. pooledForConcurrently :: (MonadUnliftIO m, Traversable t) => t a -> (a -> m b) -> m (t b)

   unliftio	UnliftIO.Internals.Async

   Similar to pooledForConcurrentlyN but with number of threads set from getNumCapabilities. Usually this is useful for CPU bound tasks.

6. pooledForConcurrentlyN :: (MonadUnliftIO m, Traversable t) => Int -> t a -> (a -> m b) -> m (t b)

   unliftio	UnliftIO.Internals.Async

   Similar to pooledMapConcurrentlyN but with flipped arguments.

7. pooledForConcurrentlyN_ :: (MonadUnliftIO m, Foldable t) => Int -> t a -> (a -> m b) -> m ()

   unliftio	UnliftIO.Internals.Async

   Like pooledMapConcurrentlyN_ but with flipped arguments.

8. pooledForConcurrently_ :: (MonadUnliftIO m, Foldable f) => f a -> (a -> m b) -> m ()

   unliftio	UnliftIO.Internals.Async

   Like pooledMapConcurrently_ but with flipped arguments.

9. showCommandForUser :: FilePath -> [String] -> String

   unliftio	UnliftIO.Process

   Given a program p and arguments args, showCommandForUser p args returns a string suitable for pasting into /bin/sh (on Unix systems) or CMD.EXE (on Windows).

10. waitForProcess :: MonadIO m => ProcessHandle -> m ExitCode

    unliftio	UnliftIO.Process

    Lifted waitForProcess.

Page 424 of many | Previous | Next