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Need sparse file support (POSIX lseek() SEEK_DATA, SEEK_HOLE)

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#367 4 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
28/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Domain
operating-systems

Research direction

Start by locating the MSYS2 lseek() implementation and comparing it with the SEEK_DATA and SEEK_HOLE support added in Cygwin 3.6. Read the linked POSIX and platform references first; the work is done when MSYS2 supports the requested sparse-file behavior and its existing validation covers both seek modes.

Written by the indexing model from the issue text.

Description

We need sparse file support, i.e. POSIX 2024 lseek() SEEK_DATA and SEEK_HOLE support.
Cygwin 3.6 already has support for this, so it only needs to be ported to MSYS2

References:

Dominant language
CSS
Stars
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Forks
446
Avg merge
2h 16m
Merged PRs (30d)
1

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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