Downloading multiple files using a single SFTP session

[zidaye]

Similar to #14 , uploading multiple files in a single session significantly improves performance. I want to try downloading multiple files in a single session, but what perplexes me is that it gets blocked during the response reading process until it times out

async fn test_upload_data(mut sftp: SftpSession, file_count: i32, file_size: i32) {
    let mut handler_vec = Vec::new();
    let start_time = Instant::now();
    let dir = sftp.read_dir("data-sync").await.unwrap();
    for dir_file in dir {
        let path = format!("data-sync/{}", dir_file.file_name());
        let mut file = sftp.open_with_flags(
            path.clone(),
            OpenFlags::READ,
        )
        .await.unwrap();
        let mut dest = fs_File::create(path.clone()).unwrap();
        let handler = task::spawn(async move {
            let start_time = Instant::now();

            let mut buffer = Vec::new();
     
            file.read_to_end(&mut buffer).await.unwrap();

            let elapsed_time = start_time.elapsed();
            println!("read_all Time elapsed: {:?}", elapsed_time);
            dest.write_all(&buffer).unwrap();
            let elapsed_time = start_time.elapsed();
            println!("writr_all Time elapsed: {:?}", elapsed_time);

        });
        handler_vec.push(handler);
    }

    futures::future::join_all(handler_vec).await;
    let elapsed_time = start_time.elapsed();
    println!("Time elapsed: {:?}", elapsed_time);
 
}

Does anyone have any insights into this?