[s3-checksum] implement x-amz-checksum-* headers

src/util/async_hash.rs

@@ -1,61 +0,0 @@
-use bytes::Bytes;
-use digest::Digest;
-
-use tokio::sync::mpsc;
-use tokio::task::JoinHandle;
-
-use crate::data::*;
-
-/// Compute the sha256 of a slice,
-/// spawning on a tokio thread for CPU-intensive processing
-/// The argument has to be an owned Bytes, as it is moved out to a new thread.
-pub async fn async_sha256sum(data: Bytes) -> Hash {
-	tokio::task::spawn_blocking(move || sha256sum(&data))
-		.await
-		.unwrap()
-}
-
-/// Compute the blake2sum of a slice,
-/// spawning on a tokio thread for CPU-intensive processing.
-/// The argument has to be an owned Bytes, as it is moved out to a new thread.
-pub async fn async_blake2sum(data: Bytes) -> Hash {
-	tokio::task::spawn_blocking(move || blake2sum(&data))
-		.await
-		.unwrap()
-}
-
-// ----
-
-pub struct AsyncHasher<D: Digest> {
-	sendblk: mpsc::Sender<Bytes>,
-	task: JoinHandle<digest::Output<D>>,
-}
-
-impl<D: Digest> AsyncHasher<D> {
-	pub fn new() -> Self {
-		let (sendblk, mut recvblk) = mpsc::channel::<Bytes>(1);
-		let task = tokio::task::spawn_blocking(move || {
-			let mut digest = D::new();
-			while let Some(blk) = recvblk.blocking_recv() {
-				digest.update(&blk[..]);
-			}
-			digest.finalize()
-		});
-		Self { sendblk, task }
-	}
-
-	pub async fn update(&self, b: Bytes) {
-		self.sendblk.send(b).await.unwrap();
-	}
-
-	pub async fn finalize(self) -> digest::Output<D> {
-		drop(self.sendblk);
-		self.task.await.unwrap()
-	}
-}
-
-impl<D: Digest> Default for AsyncHasher<D> {
-	fn default() -> Self {
-		Self::new()
-	}
-}

src/util/lib.rs

@@ -3,7 +3,6 @@
 #[macro_use]
 extern crate tracing;
 
-pub mod async_hash;
 pub mod background;
 pub mod config;
 pub mod crdt;