QTcpServer: No such file or directory (Qt 4, SuSe 10)

[freak]

I'm trying to create a QTcpServer inside a QThread. I get the error "QTcpServer: No such file or directory" error.

The include path is not added to the Makefile when running the following:

qmake -project
qmake

Has anyone seen this problem, if so, how would you go about solving it? Thanks in advanced.

[jacek]

Add "QT += network" to your .pro file.

[freak]

Thanks a lot for the help. This fixed my problem with the missing Include and Library.

I am able to compile my code but when I run it I get the following error:

ASSERT failure in QObject::QObject(): "Cannot create children for a parent that is in a different thread."

The code is the following:

mythread::mythread()
{
    tcpServ = new QTcpServer(this);
}
 
mythread::run()
{
    while(isRunning())
    {
          tcpServ->listen();
    }
    exec();
}

mythread::mythread()
{
    tcpServ = new QTcpServer(this);
}

mythread::run()
{
    while(isRunning())
    {
          tcpServ->listen();
    }
    exec();
}

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One more question. Since this is a different problem/question do I continue in this thread or is it best placed as a new thread?

Thanks for the help.

[jacek]

ASSERT failure in QObject::QObject(): "Cannot create children for a parent that is in a different thread."

When the constructor is executed that new thread doesn't exist yet (not mentioning that mythread object lives in a thread that created it). If you create an object in the constructor it will live in a wrong thread. Therefore you should create QTcpServer in mythread::run() (without a parent):

mythread::run()
{
    tcpServ = new QTcpServer();
    while(isRunning())
    {
          tcpServ->listen();
    }
    exec();
}

mythread::run()
{
    tcpServ = new QTcpServer();
    while(isRunning())
    {
          tcpServ->listen();
    }
    exec();
}

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http://doc.trolltech.com/4.1/threads.html

Since this is a different problem/question do I continue in this thread or is it best placed as a new thread?

Next time, please, start a new thread.