From 71059fbfa531f0229ca70a23c0082cec7315d6b4 Mon Sep 17 00:00:00 2001
From: Eugene Ostroukhov <eostroukhov@chromium.org>
Date: Tue, 24 Apr 2018 11:16:55 -0700
Subject: [PATCH] inspector: Use default uv_listen backlog size

PR-URL: https://github.com/nodejs/node/pull/20254
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
---
 src/inspector_socket_server.cc              |  3 +-
 test/parallel/test-inspector-stress-http.js | 34 +++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 test/parallel/test-inspector-stress-http.js

diff --git a/src/inspector_socket_server.cc b/src/inspector_socket_server.cc
index 3725c19e93fb86..e69c8d768be156 100644
--- a/src/inspector_socket_server.cc
+++ b/src/inspector_socket_server.cc
@@ -587,7 +587,8 @@ int ServerSocket::Listen(InspectorSocketServer* inspector_server,
   CHECK_EQ(0, uv_tcp_init(loop, server));
   int err = uv_tcp_bind(server, addr, 0);
   if (err == 0) {
-    err = uv_listen(reinterpret_cast<uv_stream_t*>(server), 1,
+    // 511 is the value used by a 'net' module by default
+    err = uv_listen(reinterpret_cast<uv_stream_t*>(server), 511,
                     ServerSocket::SocketConnectedCallback);
   }
   if (err == 0) {
diff --git a/test/parallel/test-inspector-stress-http.js b/test/parallel/test-inspector-stress-http.js
new file mode 100644
index 00000000000000..4787c35e32c899
--- /dev/null
+++ b/test/parallel/test-inspector-stress-http.js
@@ -0,0 +1,34 @@
+// Flags: --expose-internals
+'use strict';
+const common = require('../common');
+
+common.skipIfInspectorDisabled();
+
+const assert = require('assert');
+const { NodeInstance } = require('../common/inspector-helper.js');
+
+async function testHttp(child, number) {
+  try {
+    await child.httpGet(null, '/json/list');
+    return true;
+  } catch (e) {
+    console.error(`Attempt ${number} failed`, e);
+    return false;
+  }
+}
+
+async function runTest() {
+  const child = new NodeInstance(undefined, '');
+
+  const promises = [];
+  for (let i = 0; i < 100; i++) {
+    promises.push(testHttp(child, i));
+  }
+  const result = await Promise.all(promises);
+  assert(!result.some((a) => !a), 'Some attempts failed');
+  return child.kill();
+}
+
+common.crashOnUnhandledRejection();
+
+runTest();