Hi, my current situation is this:

I'm using threads in my application and i want to communicate with the main thread.
At the moment I'm doing it like this:

thread:
Qt Code: 
  1. [...]
  2. extern QMutex waitForUserLock;
  3. extern QWaitCondition waitForUser;
  4. [...]
  5. text = [...];
  6. customEvent * send_event = new customEvent(type);
  7. send_event->setData((void*)text);
  8.  
  9. waitForUserLock.lock();
  10. QApplication::postEvent((QObject*)mainwindow, send_event);
  11. waitForUser.wait(&waitForUserLock); //sometimes hangs here
  12. waitForUserLock.unlock();
  13. [...]
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mainwindow:
Qt Code: 
  1. [...]
  2. QMutex waitForUserLock;
  3. QWaitCondition waitForUser;
  4. [...]
  5. void mainwindow::customEvent(QEvent *e)
  6. {
  7.     customEvent *me = (customEvent *) e;
  8.     switch (me->type())
  9.     {
  10.     case type:
  11.         waitForUserLock.lock();
  12.         my_function((char*)me->data());
  13.         waitForUser.wakeOne();
  14.         waitForUserLock.unlock();
  15.         return;
  16.     [...]
  17.     }
  18. }
  19. [...]
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The problem is the wait, where the application sometimes hangs.
Does anyone know where the mistake is or is there a better solution?