auto-update: Efficiently run periodic, on-demand actions

[ control, library, mit ] [ Propose Tags ]

API docs and the README are available at http://www.stackage.org/package/auto-update.


[Skip to Readme]
Versions [faq] 0.1.0.0, 0.1.1.0, 0.1.1.1, 0.1.1.2, 0.1.1.3, 0.1.1.4, 0.1.1.5, 0.1.2, 0.1.2.1, 0.1.2.2, 0.1.3, 0.1.3.1, 0.1.4, 0.1.4.1
Change log ChangeLog.md
Dependencies base (==4.*) [details]
License MIT
Author Michael Snoyman
Maintainer michael@snoyman.com
Category Control
Home page https://github.com/yesodweb/wai
Uploaded by MichaelSnoyman at Wed Feb 20 09:44:57 UTC 2019
Distributions Arch:0.1.4.1, Debian:0.1.4, Fedora:0.1.4, FreeBSD:0.1.2.2, LTSHaskell:0.1.4.1, NixOS:0.1.4.1, Stackage:0.1.4.1, openSUSE:0.1.4.1
Downloads 68065 total (561 in the last 30 days)
Rating (no votes yet) [estimated by rule of succession]
Your Rating
  • λ
  • λ
  • λ
Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2019-02-20 [all 1 reports]

Modules

[Index] [Quick Jump]

Downloads

Maintainer's Corner

For package maintainers and hackage trustees


Readme for auto-update-0.1.4.1

[back to package description]

auto-update

A common problem is the desire to have an action run at a scheduled interval, but only if it is needed. For example, instead of having every web request result in a new getCurrentTime call, we'd like to have a single worker thread run every second, updating an IORef. However, if the request frequency is less than once per second, this is a pessimization, and worse, kills idle GC.

This library allows you to define actions which will either be performed by a dedicated thread or, in times of low volume, will be executed by the calling thread.

For original use case, see yesod-scaffold issue #15.