How to execute a functor or a lambda in a given thread in Qt, GCD-style?

Question

In ObjC with GCD, there is a way of executing a lambda in any of the threads that spin an event loop. For example:

dispatch_sync(dispatch_get_main_queue(), ^         


        

Answer 1

Others have exelent answers. here is my suggest. instead of doing something like this:-

QMetaObject::invokeMethod(socketManager,"newSocket",
                          Qt::QueuedConnection,
                          Q_ARG(QString, host),
                          Q_ARG(quint16, port.toUShort()),
                          Q_ARG(QString, username),
                          Q_ARG(QString, passhash)
                          );

do something like this which is more nice:-

QMetaObject::invokeMethod(socketManager,[=](){
    socketManager->newSocket(host,port.toUShort(),username,passhash);
},Qt::QueuedConnection);