databricks/zerobus-sdk

[FFI] Move non-Arrow header functions out of arrow.rs into a common file

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#468 opened on Jul 2, 2026

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good first issuerefactoring

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Description

Follow-up from a review comment on #420: https://github.com/databricks/zerobus-sdk/pull/420#discussion_r3513892190 (by @davidtosovic-db):

Nit: This is not important and should not be done in this PR. All of these header functions don't really have to do anything with arrow. We should probably move them to the common file.

The header-related functions in rust/ffi/src/arrow.rs (around line 670) aren't Arrow-specific, so they'd be better placed in the shared/common FFI module rather than the Arrow file.

This was deliberately deferred out of #420 as a non-blocking nit. No behavior change intended — purely relocating the functions to improve organization.

Contributor guide

Research direction
Identify the header functions in rust/ffi/src/arrow.rs around line 670 and move them to a common FFI module, such as rust/ffi/src/common.rs. Ensure no behavior changes and update any imports.
Tech stack
rust
Domain
backend
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
RustGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75