Xuanwo commented on code in PR #5835:
URL: https://github.com/apache/arrow-rs/pull/5835#discussion_r1636653814
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object_store/src/buffered.rs:
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@@ -289,6 +289,58 @@ impl BufWriter {
}
}
+ /// Write data to the writer in [`Bytes`].
+ ///
+ /// Unlike [`AsyncWrite::poll_write`], `put` can write data without extra
copying.
+ ///
+ /// This API is recommended while the data source generates [`Bytes`].
+ pub async fn put(&mut self, bytes: Bytes) -> crate::Result<()> {
+ loop {
+ return match &mut self.state {
+ BufWriterState::Write(Some(write)) => {
+ write.wait_for_capacity(self.max_concurrency).await?;
+ write.put(bytes);
+ Ok(())
+ }
+ BufWriterState::Write(None) | BufWriterState::Flush(_) => {
+ panic!("Already shut down")
Review Comment:
Following the same behavior in `poll_write`. It should not happen that `put`
come into this state.
I'm fine if we want to return error in both cases.
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