[delete] example/echo.rsHEADlwp-self-study

[update] src/lib.rs      -- 增加调试日志
[update] src/main.rs     -- 增加调试日志
[update] src/tcp.rs i    -- 增加调试日志
[update] src/reactor.rs  -- 增加调试日志
[update] src/executor.rs -- 增加调试日志

1 files changed, 51 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..ad85a80
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,51 @@
+// luwenpeng 2022/11/01
+
+use futures::StreamExt;
+use mini_rust_runtime::executor::Executor;
+use mini_rust_runtime::tcp::TcpListener;
+use tokio::io::AsyncReadExt;
+use tokio::io::AsyncWriteExt;
+
+fn main() {
+    let excutor = Executor::new();
+
+    excutor.block_on(tcp_server);
+}
+
+async fn tcp_server() {
+    let mut listener = TcpListener::bind("127.0.0.1:30000").unwrap();
+    println!("[tcp_server] listen on: 127.0.0.1:30000");
+
+    // NOTE：listener.next() 其实是调用的 poll_next()
+    while let Some(ret) = listener.next().await {
+        if let Ok((mut stream, addr)) = ret {
+            println!("[tcp_server] accept new connection: {}", addr);
+
+            // 此处只是注册，并不是此时执行
+            let future = async move {
+                let mut buf = [0; 4096];
+                loop {
+                    match stream.read(&mut buf).await {
+                        Ok(n) => {
+                            println!("[tcp_server] stream {} read: {}", addr, n);
+
+                            if n == 0 || stream.write_all(&buf[..n]).await.is_err() {
+                                println!("[tcp_server] stream {} write: {}", addr, n);
+                                return;
+                            }
+                        }
+                        Err(e) => {
+                            println!("[tcp_server] stream {} read: {}", addr, e);
+                            return;
+                        }
+                    }
+                }
+            };
+
+            // 将 future 封装成 task push 到任务队列中
+            println!("[tcp_server] -> befor Executor::spawn()");
+            Executor::spawn(future);
+            println!("[tcp_server] -> after Executor::spawn()");
+        }
+    }
+}