multiformats / multiformats/multicodec

Table: Application specific ranges

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Dominant language
Python
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Description

We were going to keep some application specific ranges. I'm not finding them in the table. We should add them back.

Ideally we should have a function that keeps some numbers within every varint size. Meaning that:

  • a 1-byte varint should have a few value reserved for app-specific codes.
  • a 2-byte varint should have some too, many more than 1-byte.
  • etc.

Effectively: come up with a function appSpecific(code int) bool that:

  • assigns some values at every varint range
  • is simple to understand

For example, one such function could be:

func appSpecific(code int) bool {
    return code % 127 > (127 - 8)
    // keeps 8 codes every 128.
}

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Research direction

The issue names the multicodec table and an appSpecific(code int) bool function, but no files or tests. Locate the table and varint implementation first, then determine how reserved values should be represented at each varint size. Done means the table includes application-specific ranges and tests cover the chosen allocation across sizes.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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