Problems with a Thread

[avis_phoenix]

Hi

I tried to restart a thread (after exit them), but when I push the restart button the program crashed and the debuger showed the following message: "QObject: Cannot create children for a parent that is in a different thread.(Parent is QTcpSocket(0x811a274), parent's thread is QThread(0x81367c0), current thread is OptimizationThread(0x81a6d90)"

What could be the problem?

The code to restart is this:

pause = false;
    if (!isRunning())
    {
        start(QThread::LowPriority);
    }
    else
    {
        condition.wakeOne();
        quit();
        if (!isRunning())
        {
            start(QThread::LowPriority);
        }
        else
        {
            qDebug()<<"Error";
        }
    }

pause = false;
    if (!isRunning())
    {
        start(QThread::LowPriority);
    }
    else
    {
        condition.wakeOne();
        quit();
        if (!isRunning())
        {
            start(QThread::LowPriority);
        }
        else
        {
            qDebug()<<"Error";
        }
    }

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I use Qt 4.4.3 and ubuntu

[jpn]

Could you show more code? You've got a bug there, but it's hard to say without seeing more code. Be especially careful with slots in QThread subclasses. You can search the forums for more details on the subject.

[avis_phoenix]

Ok, I Attach the code for the thread and the dialog uses this thread.

Thanks you

[jpn]

Ok, how about defining QT_FATAL_WARNINGS=1 environment variable and getting the backtrace from a debugger?