Writing data to a TcpSocket in own Thread

Question

I got a problem with my threaded TCP-Server.
I can open my Server, a new Socket is created an I can receive data over the socket (I used the readyRead() signal and then

Answer 1

Your error message means:

Your signal-slot communication happens on ServerThread instance which was created and belongs to main thread. However instance of ServerThread member m_socket was created and belongs to other thread.

I would suggest you to create simple QThread and move your object into it.

void Server::incomingConnection(int socketDescriptor) {
  QThread *t = new QThread();
  ClientConnection *client = new ClientConnection(socketDescriptor);
  client->moveToThread(t);

  // go
  t->start();
}

class ClientConnection : public QObject {
Q_OBJECT
public:
  ClientConnection(int socketDescriptor, QObject *parent = 0);
public slots:
  void writeData(QString data);
private:
  int m_socketDescriptor;
  QTcpSocket *m_socket;
}