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

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Versions [RSS] [faq],,,,,,, 0.1.2,,, 0.1.3,, 0.1.4,, 0.1.5, 0.1.6
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Dependencies base (==4.*) [details]
License MIT
Author Michael Snoyman
Category Control
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Uploaded by MichaelSnoyman at 2019-07-09T07:41:02Z
Distributions Arch:0.1.6, Debian:0.1.4, Fedora:0.1.6, FreeBSD:, LTSHaskell:0.1.6, NixOS:0.1.6, Stackage:0.1.6, openSUSE:0.1.6
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Last success reported on 2019-07-09 [all 1 reports]


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Readme for auto-update-0.1.6

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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.