async: 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
).
Changes in 2.0.1.1:
Safe Haskell support:
Control.Concurrent.Async
is nowTrustworthy
Changes in 2.0.1.0:
Added a
Functor
instance forAsync
Added
asyncBound
,asyncOn
,asyncWithUnmask
,asyncOnWithUnmask
,withAsyncBound
,withAsyncOn
,withAsyncWithUnmask
,withAsyncOnWithUnmask
.Added
mapConcurrently
Added
Concurrently
(withApplicative
andAlternative
instances)
Downloads
- async-2.0.1.1.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
Versions [RSS] | 1.0, 1.1, 1.2, 1.3, 1.4, 2.0.0.0, 2.0.1.0, 2.0.1.1, 2.0.1.2, 2.0.1.3, 2.0.1.4, 2.0.1.5, 2.0.1.6, 2.0.2, 2.1.0, 2.1.1, 2.1.1.1, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5 |
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Dependencies | base (>=4.3 && <4.6), stm (>=2.2 && <2.4) [details] |
Tested with | ghc ==7.0.3, ghc ==7.2.2, ghc ==7.4.1 |
License | BSD-3-Clause |
Copyright | (c) Simon Marlow 2012 |
Author | Simon Marlow |
Maintainer | Simon Marlow <marlowsd@gmail.com> |
Category | Concurrency |
Home page | https://github.com/simonmar/async |
Bug tracker | https://github.com/simonmar/async/issues |
Source repo | head: git clone https://github.com/simonmar/async.git |
Uploaded | by SimonMarlow at 2012-07-13T12:47:03Z |
Distributions | Arch:2.2.5, Debian:2.2.2, Fedora:2.2.4, FreeBSD:2.0.2, LTSHaskell:2.2.5, NixOS:2.2.5, Stackage:2.2.5, openSUSE:2.2.5 |
Reverse Dependencies | 552 direct, 4939 indirect [details] |
Downloads | 294055 total (507 in the last 30 days) |
Rating | 2.75 (votes: 7) [estimated by Bayesian average] |
Your Rating | |
Status | Docs uploaded by user Build status unknown [no reports yet] |