Dear all,
Even if I know that it can be dangerous to terminate a thread, I need to do it
for my application.
The function that run into the thread is like a long linear sequence of code
that has not been designed in a signal/slot way. Moreover, in my thread, I need
an eventloop as I use in it some TCP or UDP Qt sockets.
I have tried the worker approach with the following code and I did not find a
way to terminate the thread :
For my thread class :
1. ThreadEx::ThreadEx(QObject *parent) :
2. QThread(parent)
3. {
4. }
5.
6. void ThreadEx::run()
7. {
8. QThread::setTerminationEnabled(true);
9. exec();
10. }
For my worker class:
1. ObjectInThread::ObjectInThread(QObject *parent) :
2. QObject(parent)
3. {
4. }
5.
6.
7. void ObjectInThread::run()
8. {
9. int compteur = 0;
10. //here i am using a loop instead of the long linear flow but it is
not a loop in the real code
11. while(1)
12. {
13. qDebug() <<compteur;
14. compteur++;
15. Sleep(1000);
16. }
17. }
And for my main object that starts the thread
1. #include "mainobject.h"
2. #include <QDebug>
3.
4. MainObject::MainObject()
5. {
6. m_thread = new ThreadEx();
7. m_object = NULL;
8. }
9.
10.
11. void MainObject::start()
12. {
13. if(m_object)
14. delete m_object;
15.
16. m_object = new ObjectInThread();
17. m_object->moveToThread(m_thread);
18.
QObject::connect(m_thread,SIGNAL(started()),m_object,SLOT(run()));
19. m_thread->start();
20. }
21.
22.
23. void MainObject::stop()
24. {
25. qDebug()<<"I try to stop\n";
26. m_thread->terminate();
27. }The start and stop functions are slots called via a simple GUI.
Using the stop slot does nothing.
Moreover I tried the other way of using QThread that consists in inheriting the
QThread class and overriding the run method with the code :
void ThreadEx::run()
{
int compteur = 0;
while(1)
{
qDebug() <<compteur;
compteur++;
sleep(1);
}
}
In that case terminate works but I do not have an eventloop as I did not call
the exec method.
Is this the expected behaviour ?
I am using Qt5.1 on centOS / RedHat 6.2. I have also tried this on Windows with
no more success.
Thanks for your help,
François_______________________________________________
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