Compute hashes on dedicated threads

src/api/s3/copy.rs

@@ -365,7 +365,10 @@ pub async fn handle_upload_part_copy(
 			// we need to insert that data as a new block.
 			async move {
 				if must_upload {
-					garage2.block_manager.rpc_put_block(final_hash, data).await
+					garage2
+						.block_manager
+						.rpc_put_block(final_hash, data.into())
+						.await
 				} else {
 					Ok(())
 				}

src/api/s3/put.rs

@@ -9,6 +9,7 @@ use md5::{digest::generic_array::*, Digest as Md5Digest, Md5};
 use sha2::Sha256;
 
 use garage_table::*;
+use garage_util::async_hash::*;
 use garage_util::data::*;
 use garage_util::error::Error as GarageError;
 use garage_util::time::*;
@@ -130,7 +131,8 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 	garage.version_table.insert(&version).await?;
 
 	// Transfer data and verify checksum
-	let first_block_hash = blake2sum(&first_block[..]);
+	let first_block = Bytes::from(first_block);
+	let first_block_hash = async_blake2sum(first_block.clone()).await;
 
 	let tx_result = (|| async {
 		let (total_size, data_md5sum, data_sha256sum) = read_and_put_blocks(
@@ -273,14 +275,16 @@ async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 	garage: &Garage,
 	version: &Version,
 	part_number: u64,
-	first_block: Vec<u8>,
+	first_block: Bytes,
 	first_block_hash: Hash,
 	chunker: &mut StreamChunker<S>,
 ) -> Result<(u64, GenericArray<u8, typenum::U16>, Hash), Error> {
-	let mut md5hasher = Md5::new();
-	let mut sha256hasher = Sha256::new();
-	md5hasher.update(&first_block[..]);
-	sha256hasher.update(&first_block[..]);
+	let first_block = Bytes::from(first_block);
+
+	let md5hasher = AsyncHasher::<Md5>::new();
+	let sha256hasher = AsyncHasher::<Sha256>::new();
+	md5hasher.update(first_block.clone());
+	sha256hasher.update(first_block.clone());
 
 	let mut next_offset = first_block.len();
 	let mut put_curr_version_block = put_block_meta(
@@ -302,9 +306,10 @@ async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 			chunker.next(),
 		)?;
 		if let Some(block) = next_block {
-			md5hasher.update(&block[..]);
-			sha256hasher.update(&block[..]);
-			let block_hash = blake2sum(&block[..]);
+			let block = Bytes::from(block);
+			md5hasher.update(block.clone());
+			sha256hasher.update(block.clone());
+			let block_hash = async_blake2sum(block.clone()).await;
 			let block_len = block.len();
 			put_curr_version_block = put_block_meta(
 				garage,
@@ -322,9 +327,9 @@ async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 	}
 
 	let total_size = next_offset as u64;
-	let data_md5sum = md5hasher.finalize();
+	let data_md5sum = md5hasher.finalize().await;
 
-	let data_sha256sum = sha256hasher.finalize();
+	let data_sha256sum = sha256hasher.finalize().await;
 	let data_sha256sum = Hash::try_from(&data_sha256sum[..]).unwrap();
 
 	Ok((total_size, data_md5sum, data_sha256sum))
@@ -504,7 +509,10 @@ pub async fn handle_put_part(
 
 	// Copy block to store
 	let version = Version::new(version_uuid, bucket_id, key, false);
-	let first_block_hash = blake2sum(&first_block[..]);
+
+	let first_block = Bytes::from(first_block);
+	let first_block_hash = async_blake2sum(first_block.clone()).await;
+
 	let (_, data_md5sum, data_sha256sum) = read_and_put_blocks(
 		&garage,
 		&version,