From f0204393e29fe6286a21b333fe1891a017c0d700 Mon Sep 17 00:00:00 2001
From: cqm <cqm@97kid.com>
Date: Tue, 3 Aug 2021 14:33:32 +0800
Subject: [PATCH] bugfix: has two connect on connection callback

io.on('connection', (socket) => {
  let addedUser = false;
  console.log("new connection");
  // when the client emits 'new message', this listens and executes
  socket.on('new message', (data) => {
    // we tell the client to execute 'new message'
    socket.broadcast.emit('new message', {
      username: socket.username,
      message: data
    });
  });
  ...
---
 src/sio_socket.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/sio_socket.cpp b/src/sio_socket.cpp
index e15ba83b..59bad97e 100644
--- a/src/sio_socket.cpp
+++ b/src/sio_socket.cpp
@@ -269,6 +269,7 @@ namespace sio
     void socket::impl::send_connect()
     {
         NULL_GUARD(m_client);
+        if (m_nsp == "/") return;
         packet p(packet::type_connect,m_nsp);
         m_client->send(p);
         m_connection_timer.reset(new asio::steady_timer(m_client->get_io_service()));