QSocketNotifier can not enable from an other thread.

[dabiabilus]

I have a two classes derived from QThread

First class emits a signal to the second class when an event occurs. I connected these signal and slot with queud connection explicitly. Second class try to write to a tcp socket created in the run block of the second class. but it gives the error "QSocketNotifier can not enable from an other thread." I coul not understand why this happen.

Code is beriefly below :

connect(firstClass,SIGNAL(send(int )),secondClass,SLOT(response(int )),Qt::QueuedConnection);
 
firstClass::emitSignal()
{
  emit send(1);
}
 
secondClass::run()
{
    m_socket = new QTcpSocket();
    ....
    ...
}
secondClass::response(int  a_data)
{
     m_socket->write(".....");
}

connect(firstClass,SIGNAL(send(int )),secondClass,SLOT(response(int )),Qt::QueuedConnection);

firstClass::emitSignal()
{
  emit send(1);
}

secondClass::run()
{
    m_socket = new QTcpSocket();
    ....
    ...
}
secondClass::response(int  a_data)
{
     m_socket->write(".....");
}

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