1 files changed, 25 insertions, 0 deletions
diff --git a/cli/bench/node_tcp_promise.js b/cli/bench/node_tcp_promise.js
new file mode 100644
index 000000000..36709d2b9
--- /dev/null
+++ b/cli/bench/node_tcp_promise.js
@@ -0,0 +1,25 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+// Note: this is a keep-alive server.
+const { Server } = require("net");
+const port = process.argv[2] || "4544";
+console.log("port", port);
+
+const response = Buffer.from(
+  "HTTP/1.1 200 OK\r\nContent-Length: 12\r\n\r\nHello World\n",
+);
+
+function write(socket, buffer) {
+  const p = new Promise((resolve, _) => {
+    socket.write(buffer, resolve);
+  });
+  return Promise.resolve(p);
+}
+
+Server(async (socket) => {
+  socket.on("error", (_) => {
+    socket.destroy();
+  });
+  for await (const _ of socket) {
+    await write(socket, response);
+  }
+}).listen(port);