async: Run IO operations asynchronously and wait for their results
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Warnings:
- 'ghc-options: -O2' is rarely needed. Check that it is giving a real benefit and not just imposing longer compile times on your users.
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).
Properties
| Versions | 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, 2.2.4, 2.2.5 |
|---|---|
| Change log | changelog.md |
| Dependencies | async, base (>=4.3 && <4.17), hashable (>=1.1.2.0 && <1.4), stm (>=2.2 && <2.6) [details] |
| 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 2021-10-04T11:59:13Z |
Modules
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- Control
- Concurrent
Flags
Automatic Flags
| Name | Description | Default |
|---|---|---|
| bench | Disabled |
Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info
Downloads
- async-2.2.4.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
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