jgiannuzzi opened a new pull request, #676:
URL: https://github.com/apache/arrow-rs-object-store/pull/676
# Which issue does this PR close?
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Implements one part of #661.
# Rationale for this change
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See issue. This PR is limited to explicitly calling `close` on written files
with error checking.
# What changes are included in this PR?
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- Add `close_file()` helper that calls `libc::close()` (Unix) /
`CloseHandle` (Windows) directly and propagates errors, instead of relying on
`File::drop()`. Note that this uses `unsafe`, like in the platforms' respective
`drop()` implementations.
- Apply both to the `put` and `put_multipart` (via `LocalUpload`) code paths.
- Add `libc` (Unix) and `windows-sys` (Windows) as optional dependencies
behind the `fs` feature for their respective platforms.
- Add unit test verifying `close_file` detects `EBADF` when the file
descriptor is closed behind Rust's back. This is just to validate that
`close_file` properly returns the OS error.
# Are there any user-facing changes?
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Close errors are now detected and propagated as
`Error::UnableToCopyDataToFile`. Previously these were silently ignored. This
is a correctness improvement but could surface errors that were previously
hidden.
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