Signal/Slot syncing between two Qthread

electro

Hi all,

In my software, i'm using the QThread::wait(ms) method to wait a slot result of another QThread.

A summary of my project is the following.
-The Main thread is MainWindow class basic : public QMainWindow
-The Second thread is created with the following method and this object is created with comm_modules class : public QObject

The second thread or objet is created in the main thread constructor.

Second Thread constructor :

comm_modules(){
    _thread = new QThread;
    moveToThread(_thread);
    _thread->start();
    myInit();
}

I was tried the connect method with argument Qt::BlockingQueuedConnection but i have obtain a deadlock !

Have you an simple idea to "wait" the finish signal of a slot ? Of an another slot

Thanks a lot

VRonin

Have you an simple idea to "wait" the finish signal of a slot ?

QEventLoop loop;
QObject::connect(myobject,&MyObject::FinishedSignal,&loop,&QEventLoop::quit);
loop.exec();

electro

@VRonin Good idea, but how to do with two different thread ?

SGaist

Hi,

Since you only have two threads why not just use a counter that you decrement when the slot is called and when at zero, execute the rest of your initialization ?

electro

I have just put this argument in 5nd argument of connect method.

Qt::BlockingQueuedConnection