From 58d461bb9047c9282e627a5ea323fef863112ee2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Breitbart?= <jerch@rockborn.de>
Date: Mon, 13 May 2019 15:33:54 +0200
Subject: [PATCH] optimize Buffer.concat

---
 demo/server.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/demo/server.js b/demo/server.js
index 823dc6c6..e3473400 100644
--- a/demo/server.js
+++ b/demo/server.js
@@ -92,13 +92,16 @@ function startServer() {
     function bufferUtf8(socket, timeout) {
       let buffer = [];
       let sender = null;
+      let length = 0;
       return (data) => {
         buffer.push(data);
+        length += data.length;
         if (!sender) {
           sender = setTimeout(() => {
-            socket.send(Buffer.concat(buffer));
+            socket.send(Buffer.concat(buffer, length));
             buffer = [];
             sender = null;
+            length = 0;
           }, timeout);
         }
       };