使用 boost::asio 监听 UDP 端口失败

Now, naturally, I want to follow up with a listener that can react to these messages, but I am struggling to receive anything. My current approach is:

boost::asio::io_service io_service;
boost::asio::ip::udp::socket socket(io_service);
boost::asio::ip::udp::endpoint local(
    boost::asio::ip::address::from_string("192.168.2.102"),
    8079);
boost::system::error_code error;

std::cout << "Local bind: " << local << std::endl;

socket.open(boost::asio::ip::udp::v4(), error);
if(!error) {
    socket.bind(local);
    boost::array<char, 2048> buf;
    boost::asio::ip::udp::endpoint server;
    std::cout << "Listening..." << std::endl;
    while(true) {
        size_t len = socket.receive_from(boost::asio::buffer(buf), server);
        std::cout << "Received data:" << std::endl;
        std::cout.write(buf.data(), len);
        std::cout << std::endl;
    }
}

但我从来没有收到任何东西.使用调试器，我发现我只是永远卡在 receive_from 中，不知道为什么.