May 26, 2018
Run IO operations asynchronously and wait for their results
This package provides a higher-level interface over threads, in which an Async a is a concurrent thread that will eventually deliver a value of type a. The package provides ways to create Async computations, wait for their results, and cancel them.
Using Async is safer than using threads in two ways
When waiting for a thread to return a result, if the thread dies with an exception then the caller must either re-throw the exception wait or handle it waitCatch; the exception cannot be ignored.
The API makes it possible to build a tree of threads that are automatically killed when their parent dies see withAsync.