QUdpSocket：无法接收数据报 [英] QUdpSocket: Cannot receive datagram

问题描述

我使用QUdpSocket为了从服务器接收数据。当我收到数据使用SFML它的工作，我可以通过SocketUdp接收数据，但与qt它不工作。

I am using QUdpSocket in order to receive data from a server. When i receive data With SFML its working, i can receive data throught SocketUdp but with qt it doesn't work.

void TheClass::Bind()
{
  m_sock_receive = new QUdpSocket(this);
  if (m_sock_receive->bind(QHostAddress::Any, port))
  {
    std::cout << "Bind: OK" << std::endl;
    connect(m_sock_receive, SIGNAL(readyRead()), this, SLOT(QtReceive()));
  } 
  else
      std::cout << "Bind: NOK" << std::endl;
}

void TheClass::QtReceive()
{
    std::cout << "Pending data !" << std::endl;
}

推荐答案

绑定。可能在绑定后，readyRead在连接调用完成之前触发。如果不清空挂起的数据报，readyRead将不会再次触发。

I would make the connect before the bind. It's possible that after binding, the readyRead fires before the connect call is completed. If you don't empty the pending datagrams, the readyRead will not fire again.

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