use BufReader and BufWriter to read/write archive index files

Author: syphar

src/storage/archive_index.rs

@@ -3,7 +3,7 @@ use crate::storage::{compression::CompressionAlgorithm, FileRange};
 use anyhow::{bail, Context as _};
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
-use std::io;
+use std::io::{self, Write};
 use std::path::{Path, PathBuf};
 
 #[derive(Deserialize, Serialize)]
@@ -28,11 +28,14 @@ pub(crate) struct Index {
 
 impl Index {
     pub(crate) fn load(reader: impl io::Read) -> Result<Index> {
-        serde_cbor::from_reader(reader).context("deserialization error")
+        serde_cbor::from_reader(io::BufReader::new(reader)).context("deserialization error")
     }
 
     pub(crate) fn save(&self, writer: impl io::Write) -> Result<()> {
-        serde_cbor::to_writer(writer, self).context("serialization error")
+        let mut buf = io::BufWriter::new(writer);
+        serde_cbor::to_writer(&mut buf, self).context("serialization error")?;
+        buf.flush()?;
+        Ok(())
     }
 
     pub(crate) fn new_from_zip<R: io::Read + io::Seek>(zipfile: &mut R) -> Result<Index> {