haskell proxy-maintainers haskell@gentoo.org 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'). Changes in 2.0.1.3: * Bump @base@ dependency to allow 4.6 Changes in 2.0.1.2: * Bump @stm@ dependency to 2.4 Changes in 2.0.1.1: * Safe Haskell support: @Control.Concurrent.Async@ is now @Trustworthy@ Changes in 2.0.1.0: * Added a @Functor@ instance for @Async@ * Added @asyncBound@, @asyncOn@, @asyncWithUnmask@, @asyncOnWithUnmask@, @withAsyncBound@, @withAsyncOn@, @withAsyncWithUnmask@, @withAsyncOnWithUnmask@. * Added @mapConcurrently@ * Added @Concurrently@ (with @Applicative@ and @Alternative@ instances)