docs: add annotation

Makefile

@@ -0,0 +1,4 @@
+.PYONY: run_with_log
+
+run_with_log:
+	@RUST_LOG=info cargo run -- $(ARGS)

src/cmd/mod.rs

@@ -8,7 +8,7 @@ use crate::{Backend, RespArray, RespError, RespFrame, SimpleString};
 mod hmap;
 mod map;
 
-// you could also use once_cell instead of lazy_static
+// NOTE: you could also use once_cell instead of lazy_static
 // lazy_static:
 // 1. init in runtime
 // 2. thread safe
@@ -17,7 +17,7 @@ mod map;
 //     static ref RESP_OK: RespFrame = SimpleString::new("OK").into();
 // }
 
-// > Rust 1.80.0
+// NOTE: > Rust 1.80.0
 // https://blog.rust-lang.org/2024/07/25/Rust-1.80.0.html
 static RESP_OK: LazyLock<RespFrame> = LazyLock::new(|| SimpleString::new("OK").into());
 

src/main.rs

@@ -3,11 +3,34 @@ use simple_redis::{network, Backend};
 use tokio::net::TcpListener;
 use tracing::info;
 
+// #[tokio::main]
+// async fn main() -> Result<()> {
+//     tracing_subscriber::fmt::init();
+
+//     let addr = "0.0.0.0:6379";
+//     let listener = TcpListener::bind(addr).await?;
+//     info!("Simple-Redis-Server is listening on {}", addr);
+
+//     let backend = Backend::new();
+//     loop {
+//         let (stream, remote_addr) = listener.accept().await?;
+//         info!("Accepted connection from {}", remote_addr);
+//         let cloned_backend = backend.clone();
+//         tokio::spawn(async move {
+//             // handling of stream
+//             match network::stream_handler(stream, cloned_backend).await {
+//                 Ok(_) => info!("Connection from {} closed", remote_addr),
+//                 Err(e) => info!("Connection from {} closed with error: {}", remote_addr, e),
+//             }
+//         });
+//     }
+// }
+
 #[tokio::main]
 async fn main() -> Result<()> {
     tracing_subscriber::fmt::init();
 
-    let addr = "0.0.0.0:6389";
+    let addr = "0.0.0.0:6379";
     let listener = TcpListener::bind(addr).await?;
     info!("Simple-Redis-Server is listening on {}", addr);
 

src/network.rs

@@ -37,7 +37,15 @@ pub async fn stream_handler(stream: TcpStream, backend: Backend) -> Result<()> {
                 };
                 let response = request_handler(request).await?;
                 info!("Sending response: {:?}", response.frame);
-                framed.send(response.frame).await?;
+
+                // NOTE: When dealing with a large amount of concurrent data,
+                // flushing the sink each time will incur performance overhead.
+                // framed.send(response.frame).await?;
+
+                // 使用 feed 方法添加响应
+                framed.feed(response.frame).await?;
+                // 在合适的时候调用 flush 方法
+                framed.flush().await?;
             }
             Some(Err(e)) => return Err(e),
             None => return Ok(()),