uni-util- Utilities for the uniform workbench



Basic Thread operations.



data ThreadId

A ThreadId is an abstract type representing a handle to a thread. ThreadId is an instance of Eq, Ord and Show, where the Ord instance implements an arbitrary total ordering over ThreadIds. The Show instance lets you convert an arbitrary-valued ThreadId to string form; showing a ThreadId value is occasionally useful when debugging or diagnosing the behaviour of a concurrent program.

Note: in GHC, if you have a ThreadId, you essentially have a pointer to the thread itself. This means the thread itself can't be garbage collected until you drop the ThreadId. This misfeature will hopefully be corrected at a later date.

Note: Hugs does not provide any operations on other threads; it defines ThreadId as a synonym for ().

after :: Duration -> IO a -> IO aSource

mapMConcurrent :: (a -> IO b) -> [a] -> IO [b]Source

mapMConcurrent_ :: (a -> IO ()) -> [a] -> IO ()Source

mapMConcurrentExcep :: forall a b. (a -> IO b) -> [a] -> IO [b]Source