Boost listening port server

The first way , More comprehensive approach
1, establish acceptor io
boost::asio::io_service io_serv;
boost::asio::ip::tcp::acceotpr acceotpr(io_serv);
acceotpr.open(io_serv, ip::tcp::v4());

2, Set up port multiplexing
int on = 1;
setsockopt(acceotpr->native_handle(), SOL_SOCKET, SO_REUSEADDR, (void *)&on, sizeof(on));
setsockopt(acceotpr->native_handle(), SOL_SOCKET, SO_REUSEPORT, (void *)&on, sizeof(on));
// Or call acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));

3, Set listening port
{
// If listening to all network card port numbers
boost::asio::ip::tcp::endpoint endpoint(ipc::tcp::v4(), port)
// If you monitor ip+ Port number
boost::asio::ip::tcp::endpoint endpoint(boost::asio::ip::address_v4::from_string(ip), port)
}

4, Binding port
acceotpr.bind(endpoint);

5, monitor
acceotpr.listen();

6, Receive data asynchronously

start_accept()
{
boost::asio::ip::tcp::socket *psock = new boost::asio::ip::tcp::socket(io_serv)
acceotpr.async_accept(sock, boost::bind(handle_accept, this, (void *)psock, _1)); // Bind receive function
}

7, Data processing
handle_accept(void *psock, const boost::system::error_code &error)
{
if(error)
return ;

std::ostringstream local = psock->local_endpoint().address();
std::string local_str = local.str();

std::ostringstream remote = psock->remote_endpoint().address();
std::string remote_str = remote.str();

start_accept();

}

8, Execute callback using
io_serv.run();

The second way , Simple way
boost::asio::io_service io_serv;
boost::asio::ip::tcp::acceotpr acceotpr(io_serv, tcp::endpoint(tcp::v4(), port))