问QNetwork停止连接和检索数据

EN

QTimer timer;
timer.setSingleShot(true);
// connect the timer to the reply
connect(&timer, SIGNAL(timeout()), &networkReply, SLOT(abort())));
// start your timer
timer.start(30000);

void onTimeout(QNetworkReply *reply, int msec, std::function<void(const QByteArray &)> fun) {
  auto call = [=]{
    auto const data = reply->readAll();
    if (!reply->isFinished())
      reply->abort();
    fun(data);
  };
  if (!reply->bytesAvailable()) {
    QPointer<QObject> conn = new QObject(reply);
    // single-shot connection
    connect(reply, &QNetworkReply::downloadProgress, conn, [=](qint64 a, qint64 s){
      if (a && s) {
        QTimer::singleShot(msec, reply, call);
        delete conn;
      }
    });
  }
}