https://github.com/makerdao/osm

Feed with 1 hour delay
https://github.com/makerdao/osm

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• Host: GitHub
• URL: https://github.com/makerdao/osm
• Owner: makerdao
• License: agpl-3.0
• Created: 2018-02-23T19:20:08.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2023-03-16T02:28:47.000Z (almost 2 years ago)
• Last Synced: 2023-04-05T23:40:54.205Z (almost 2 years ago)
• Language: Solidity
• Homepage:
• Size: 46.9 KB
• Stars: 21
• Watchers: 21
• Forks: 26
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Oracle Security Module

![Build Status](https://github.com/makerdao/osm/actions/workflows/.github/workflows/tests.yaml/badge.svg?branch=master)

This contract is given a `DSValue` as a source to read from. You set a time interval with `step`. Whenever that `step` time has passed, it will let you `poke`. When you `poke` it reads the value from the source and stores it. The previous stored value becomes the current value. 

This contracts implements `read` and `peek` from DSValue, but it is not one. It also has a new function `peep` to read what the next value will be after a `poke`.

```

// create

OSM osm = new OSM(DSValue(src));

// can be poked every hour, on the hour

osm.step(3600);

(val, ok) = osm.peek() // get current value

(val, ok) = osm.peep() // get upcoming value

val       = osm.read() // get current value, or fail

```

If this `DSValue` has a valid value on creation, the OSM with start with that same value.