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).

Modules

[Index] [Quick Jump]

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 (revised from the package)

Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.

Maintainer's Corner

Package maintainers

• PeterSimons, SimonMarlow

For package maintainers and hackage trustees

• edit package information

Candidates

• 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5