tustvold commented on code in PR #5538:
URL: https://github.com/apache/arrow-rs/pull/5538#discussion_r1565677350
##########
object_store/src/client/retry.rs:
##########
@@ -166,26 +166,54 @@ impl Default for RetryConfig {
}
}
-fn send_retry_impl(
- builder: reqwest::RequestBuilder,
- config: &RetryConfig,
- is_idempotent: Option<bool>,
-) -> BoxFuture<'static, Result<Response>> {
- let mut backoff = Backoff::new(&config.backoff);
- let max_retries = config.max_retries;
- let retry_timeout = config.retry_timeout;
+pub struct RetryableRequest {
+ client: Client,
+ request: Request,
- let (client, req) = builder.build_split();
- let req = req.expect("request must be valid");
- let is_idempotent = is_idempotent.unwrap_or(req.method().is_safe());
+ max_retries: usize,
+ retry_timeout: Duration,
+ backoff: Backoff,
- async move {
+ idempotent: Option<bool>,
+ payload: Option<PutPayload>,
+}
+
+impl RetryableRequest {
+ /// Set whether this request is idempotent
+ pub fn idempotent(self, idempotent: bool) -> Self {
+ Self {
+ idempotent: Some(idempotent),
+ ..self
+ }
+ }
+
+ /// Provide a [`PutPayload`]
+ pub fn payload(self, payload: Option<PutPayload>) -> Self {
+ Self { payload, ..self }
+ }
+
+ pub async fn send(self) -> Result<Response> {
+ let max_retries = self.max_retries;
+ let retry_timeout = self.retry_timeout;
let mut retries = 0;
let now = Instant::now();
+ let mut backoff = self.backoff;
+ let is_idempotent = self
+ .idempotent
+ .unwrap_or_else(|| self.request.method().is_safe());
+
loop {
- let s = req.try_clone().expect("request body must be cloneable");
- match client.execute(s).await {
+ let mut s = self
+ .request
+ .try_clone()
+ .expect("request body must be cloneable");
+
+ if let Some(x) = &self.payload {
+ *s.body_mut() = Some(x.body());
Review Comment:
This is an upstream type unfortunately
##########
object_store/src/aws/client.rs:
##########
@@ -266,7 +270,8 @@ pub(crate) struct Request<'a> {
path: &'a Path,
config: &'a S3Config,
builder: RequestBuilder,
- payload_sha256: Option<Vec<u8>>,
+ payload_sha256: Option<digest::Digest>,
Review Comment:
It avoids an allocation, but yes an unrelated cleanup
##########
object_store/src/upload.rs:
##########
@@ -157,19 +159,34 @@ impl WriteMultipart {
/// [`Self::wait_for_capacity`] prior to calling this method
pub fn write(&mut self, mut buf: &[u8]) {
while !buf.is_empty() {
- let capacity = self.buffer.capacity();
- let remaining = capacity - self.buffer.len();
+ let remaining = self.chunk_size - self.buffer.content_length();
let to_read = buf.len().min(remaining);
self.buffer.extend_from_slice(&buf[..to_read]);
if to_read == remaining {
- let part = std::mem::replace(&mut self.buffer,
Vec::with_capacity(capacity));
- self.put_part(part.into())
+ let buffer = std::mem::take(&mut self.buffer);
+ self.put_part(buffer.into())
}
buf = &buf[to_read..]
}
}
- fn put_part(&mut self, part: Bytes) {
+ /// Put a chunk of data into this [`WriteMultipart`]
+ ///
+ /// See [`Self::write`] for information on backpressure
+ pub fn put(&mut self, mut bytes: Bytes) {
Review Comment:
There are circumstances where having the writer perform the buffering might
be advantageous, e.g. when integrating with the `Write` trait
##########
object_store/src/payload.rs:
##########
@@ -0,0 +1,298 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+use bytes::Bytes;
+use std::sync::Arc;
+
+/// A cheaply cloneable, ordered collection of [`Bytes`]
+#[derive(Debug, Clone)]
+pub struct PutPayload(Arc<[Bytes]>);
+
+impl Default for PutPayload {
+ fn default() -> Self {
+ Self(Arc::new([]))
+ }
+}
+
+impl PutPayload {
+ /// Create a new empty [`PutPayload`]
+ pub fn new() -> Self {
+ Self::default()
+ }
+
+ /// Creates a [`PutPayload`] from a static slice
+ pub fn from_static(s: &'static [u8]) -> Self {
+ s.into()
+ }
+
+ /// Creates a [`PutPayload`] from a [`Bytes`]
+ pub fn from_bytes(s: Bytes) -> Self {
+ s.into()
+ }
+
+ #[cfg(feature = "cloud")]
+ pub(crate) fn body(&self) -> reqwest::Body {
+ reqwest::Body::wrap_stream(futures::stream::iter(
+ self.clone().into_iter().map(Ok::<_, crate::Error>),
+ ))
+ }
+
+ /// Returns the total length of the [`Bytes`] in this payload
+ pub fn content_length(&self) -> usize {
+ self.0.iter().map(|b| b.len()).sum()
+ }
+
+ /// Returns an iterator over the [`Bytes`] in this payload
+ pub fn iter(&self) -> PutPayloadIter<'_> {
+ PutPayloadIter(self.0.iter())
+ }
+}
+
+impl AsRef<[Bytes]> for PutPayload {
+ fn as_ref(&self) -> &[Bytes] {
+ self.0.as_ref()
+ }
+}
+
+impl<'a> IntoIterator for &'a PutPayload {
+ type Item = &'a Bytes;
+ type IntoIter = PutPayloadIter<'a>;
+
+ fn into_iter(self) -> Self::IntoIter {
+ self.iter()
+ }
+}
+
+impl IntoIterator for PutPayload {
+ type Item = Bytes;
+ type IntoIter = PutPayloadIntoIter;
+
+ fn into_iter(self) -> Self::IntoIter {
+ PutPayloadIntoIter {
+ payload: self,
+ idx: 0,
+ }
+ }
+}
+
+/// An iterator over [`PutPayload`]
+#[derive(Debug)]
+pub struct PutPayloadIter<'a>(std::slice::Iter<'a, Bytes>);
+
+impl<'a> Iterator for PutPayloadIter<'a> {
+ type Item = &'a Bytes;
+
+ fn next(&mut self) -> Option<Self::Item> {
+ self.0.next()
+ }
+
+ fn size_hint(&self) -> (usize, Option<usize>) {
+ self.0.size_hint()
+ }
+}
+
+/// An owning iterator of [`PutPayload`]
+#[derive(Debug)]
+pub struct PutPayloadIntoIter {
+ payload: PutPayload,
+ idx: usize,
+}
+
+impl Iterator for PutPayloadIntoIter {
+ type Item = Bytes;
+
+ fn next(&mut self) -> Option<Self::Item> {
+ let p = self.payload.0.get(self.idx)?.clone();
+ self.idx += 1;
+ Some(p)
+ }
+
+ fn size_hint(&self) -> (usize, Option<usize>) {
+ let l = self.payload.0.len() - self.idx;
+ (l, Some(l))
+ }
+}
+
+impl From<Bytes> for PutPayload {
+ fn from(value: Bytes) -> Self {
+ Self(Arc::new([value]))
+ }
+}
+
+impl From<Vec<u8>> for PutPayload {
+ fn from(value: Vec<u8>) -> Self {
+ Self(Arc::new([value.into()]))
+ }
+}
+
+impl From<&'static str> for PutPayload {
+ fn from(value: &'static str) -> Self {
+ Bytes::from(value).into()
+ }
+}
+
+impl From<&'static [u8]> for PutPayload {
+ fn from(value: &'static [u8]) -> Self {
+ Bytes::from(value).into()
+ }
+}
+
+impl From<String> for PutPayload {
+ fn from(value: String) -> Self {
+ Bytes::from(value).into()
+ }
+}
+
+impl FromIterator<u8> for PutPayload {
+ fn from_iter<T: IntoIterator<Item = u8>>(iter: T) -> Self {
+ Bytes::from_iter(iter).into()
+ }
+}
+
+impl FromIterator<Bytes> for PutPayload {
+ fn from_iter<T: IntoIterator<Item = Bytes>>(iter: T) -> Self {
+ Self(iter.into_iter().collect())
+ }
+}
+
+impl From<PutPayload> for Bytes {
+ fn from(value: PutPayload) -> Self {
+ match value.0.len() {
+ 0 => Self::new(),
+ 1 => value.0[0].clone(),
+ _ => {
+ let mut buf = Vec::with_capacity(value.content_length());
+ value.iter().for_each(|x| buf.extend_from_slice(x));
+ buf.into()
+ }
+ }
+ }
+}
+
+/// A builder for [`PutPayload`] that allocates memory in chunks
+#[derive(Debug)]
+pub struct PutPayloadMut {
+ len: usize,
+ completed: Vec<Bytes>,
+ in_progress: Vec<u8>,
+ block_size: usize,
+}
+
+impl Default for PutPayloadMut {
+ fn default() -> Self {
+ Self {
+ len: 0,
+ completed: vec![],
+ in_progress: vec![],
+
+ block_size: 8 * 1024,
+ }
+ }
+}
+
+impl PutPayloadMut {
+ /// Create a new [`PutPayloadMut`]
+ pub fn new() -> Self {
+ Self::default()
+ }
+
+ /// Allocate data in chunks of `block_size`
+ ///
+ /// Defaults to 8KB
+ pub fn with_block_size(self, block_size: usize) -> Self {
+ Self { block_size, ..self }
+ }
+
+ /// Write bytes into this [`PutPayloadMut`]
+ pub fn extend_from_slice(&mut self, slice: &[u8]) {
+ let remaining = self.in_progress.capacity() - self.in_progress.len();
+ let to_copy = remaining.min(slice.len());
+
+ self.in_progress.extend_from_slice(&slice[..to_copy]);
+ if self.in_progress.capacity() == self.in_progress.len() {
+ let new_cap = self.block_size.max(slice.len() - to_copy);
+ let completed = std::mem::replace(&mut self.in_progress,
Vec::with_capacity(new_cap));
+ if !completed.is_empty() {
+ self.completed.push(completed.into())
+ }
+ self.in_progress.extend_from_slice(&slice[to_copy..])
+ }
+ self.len += slice.len();
+ }
+
+ /// Append a [`Bytes`] to this [`PutPayloadMut`]
+ pub fn push(&mut self, bytes: Bytes) {
+ if !self.in_progress.is_empty() {
+ let completed = std::mem::take(&mut self.in_progress);
+ self.completed.push(completed.into())
+ }
+ self.completed.push(bytes)
+ }
+
+ /// Returns `true` if this [`PutPayloadMut`] contains no bytes
+ #[inline]
+ pub fn is_empty(&self) -> bool {
+ self.len == 0
+ }
+
+ /// Returns the total length of the [`Bytes`] in this payload
+ #[inline]
+ pub fn content_length(&self) -> usize {
+ self.len
+ }
+
+ /// Convert into [`PutPayload`]
+ pub fn freeze(mut self) -> PutPayload {
+ if !self.in_progress.is_empty() {
+ let completed = std::mem::take(&mut self.in_progress).into();
+ self.completed.push(completed);
+ }
+ PutPayload(self.completed.into())
Review Comment:
Vec::default doesn't allocate
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