Fix "YesHandler" in design.md

design.md

@@ -414,20 +414,21 @@ private:
 class YesHandler : public ConnectionHandler {
 public:
   void on_connection_established(Connection &conn) override {
-    // Start writing immediately
-    on_write_progress(conn);
+    // Write an initial "y\n"
+    conn.appendMessage("y\n");
   }
 
-  void on_write_progress(std::unique_ptr<Connection> &conn_ptr) override {
+  void on_write_progress(std::unique_ptr<Connection> &conn) override {
+    if (conn->outgoingBytesQueued() == 0) {
+      // Don't use an unbounded amount of memory
+      conn->reset();
       // Write "y\n" repeatedly
-    if (conn_ptr->outgoingBytesQueued() == 0)
-        conn_ptr->appendMessage("y\n");
+      conn->appendMessage("y\n");
     }
   }
 };
 ```
 
-
 ### Arena-Based String Handling
 ```cpp
 // Preferred: Zero-copy string view with arena allocation