[solved] Executing method in different thread without creating new object?

[shimano]

Hi guys,

I wonder, is it possible to move only a method/slot to new thread but without creat new object?

Let's suppose that I have an object MainWindow with method (slot) findFile(). I would like to execute findFile() after press a QPushButton (that's easy part). As I observed in some examples and documentation, the easiest way to put something into thread is to use moveToThread(), which, as I understand, should look like:

@
class MyClass {
public slots:
void findFile();
};

void MyClass::findFile() {
// .. do a lot timewasting work
}

void MainWindow::threadingWork() {
MyClass *myObject = new MyClass;
QThread *searchingThread = new QThread(this);
connect(searchingThread, SIGNAL(started()), this, SLOT(findFile()));
myObject->moveToThread(searchingThread);
searchingThread->start();
}
@

But, I would like just execute a findFile(), I don't need to create myObject, so I would like to code like:

@
class MainWindow {
// code needed to create GUI
public slots:
void findFile();
};

void MainWindow::findFile() {
// .. do a lot timewasting work
}

void MainWindow::threadingWork() {
QThread *searchingThread = new QThread(this);
connect(searchingThread, SIGNAL(started()), this, SLOT(findFile()));
moveToThread(searchingThread);
searchingThread->start();
}
@

[tchoninho]

You can use QConcurrent::run().
QConcurrent framework allows to run a global method in parallel mode.

That example was copied from Assistant.

[code]
void someFunction(int arg1, double arg2);
QFuture<void> future = QtConcurrent::run(boost::bind(someFunction, 1, 2.0));
...
[/code]

[kumararajas]

How do I do this in Qt 4.8?

[kumararajas]

How do I do this in Qt 4.8?

[SGaist]

Hi,

Exactly the same

[SGaist]

Hi,

Exactly the same

[kumararajas]

Thanks for the answer Sam!

[kumararajas]

Thanks for the answer Sam!