[Qt-interest] QThread eventloop problems

[Jason H]

I have no idea why would want to load pages in a thread when the Qt networking classes are async. I'd keep them all in the main thread. There is only a small performance hit on the one CPU having all the IO loaded on it. Unless you're doing a lot of SSL, it shouldn't matter.





________________________________
From: Sergey Shekyan <sergio_arm at yahoo.com>
To: qt-interest at trolltech.com
Sent: Thu, February 25, 2010 12:50:20 PM
Subject: [Qt-interest] QThread eventloop problems


Hi, 

I am trying to have multithreaded app with QWebPage isntance in every thread. 
the way I am creating it is:


void
 MyServer::incomingConnection(int socketDescriptor)
  {
    MyThread* thread = new MyThread(this, socketDescriptor);
    connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));
    thread->start();
   }

and run() of MyThread is:
void
  MyThread::run(){
    MyPage page(sockfd);
    exec();
  }

where, MyPage is subclassed from QObject, and has QWebPage member pointer, and slots to handle signals from QWebPage. 

So the problem is everything works if I am creating MyPage in main event loop, and looks like I don't have the event loop, and no signals of QWebPage are triggered if MyPage is in MyThread. 
What am I doing wrong?


      
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