1 files changed, 48 insertions, 0 deletions
diff --git a/bench/websocket-server/chat-server.deno.mjs b/bench/websocket-server/chat-server.deno.mjs
new file mode 100644
index 000000000..3cea9cf2f
--- /dev/null
+++ b/bench/websocket-server/chat-server.deno.mjs
@@ -0,0 +1,48 @@
+// See ./README.md for instructions on how to run this benchmark.
+const port = Deno.env.get("PORT") || 4001;
+const CLIENTS_TO_WAIT_FOR =
+  parseInt(Deno.env.get("CLIENTS_COUNT") || "", 10) || 16;
+
+var clients = [];
+async function reqHandler(req) {
+  if (req.headers.get("upgrade") != "websocket") {
+    return new Response(null, { status: 501 });
+  }
+  const { socket: client, response } = Deno.upgradeWebSocket(req);
+
+  clients.push(client);
+  const name = new URL(req.url).searchParams.get("name");
+
+  console.log(
+    `${name} connected (${CLIENTS_TO_WAIT_FOR - clients.length} remain)`
+  );
+
+  client.onmessage = (event) => {
+    const msg = `${name}: ${event.data}`;
+    for (let client of clients) {
+      client.send(msg);
+    }
+  };
+  client.onclose = () => {
+    clients.splice(clients.indexOf(client), 1);
+  };
+
+  if (clients.length === CLIENTS_TO_WAIT_FOR) {
+    sendReadyMessage();
+  }
+  return response;
+}
+
+function sendReadyMessage() {
+  console.log("All clients connected");
+  setTimeout(() => {
+    console.log("Starting benchmark");
+    for (let client of clients) {
+      client.send(`ready`);
+    }
+  }, 100);
+}
+
+console.log(`Waiting for ${CLIENTS_TO_WAIT_FOR} clients to connect..`);
+
+Deno.serve(reqHandler, { port });