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HD-3988: range matrix less io #17

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@liaud liaud commented Jan 8, 2025

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This new API handle more efficiently sub range residing inside a
single encoding group.

The previous DecodeMatrix has been split into 3 functions that must
be used in different cases:

- LinearizeMatrix: A function that take data fragments and linearize them.
  In contrary to the old 'decode_fast' there is no more requirement on the
  number of provided data fragments.

- DecodeMatrix: This function expect as many fragment as the schema requires.
  It will both reconstruct the missing data fragments if any and linearize
  the data.

- ValidateFragmentMatrix: Is used to check a retrieve fragment. This is useful to
  detect corruption cases before giving the fragments to LinearizeMatrix.

In addition, GetRangeMatrix has been updated to require the minimum amount
of fragments when the requested range span a single group.

Matrix functions directly takes the RangeMatrix as an argument to reflect they
are part of the same API group.
We expect ValidateFragment to be called once beforehand.
This avoid doing redundant checksum checks.
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bert-e commented Jan 8, 2025

Hello liaud,

My role is to assist you with the merge of this
pull request. Please type @bert-e help to get information
on this process, or consult the user documentation.

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bert-e commented Jan 8, 2025

Waiting for approval

The following approvals are needed before I can proceed with the merge:

  • the author

  • 2 peers

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2 participants