A question about QEventLoop.

[John Van]

Hello everyone,

#include <QApplication>
#include <QEventLoop>
#include <QTimer>
#include <QMetaObject>
#include <QThread>
int main(int argc, char* argv[])
{
	QApplication app(argc, argv);
	auto obj = new QObject();
	auto th = new QThread();
	th->start();
	obj->moveToThread(th);
	for (size_t i = 0; i < 5; i++)
	{
		QThread::msleep(500);
		QMetaObject::invokeMethod(obj, [=]() {
			printf("%d start ", i);
			QEventLoop loop;
			QTimer::singleShot(5000, &loop, &QEventLoop::quit);
			loop.exec();
			//QThread::sleep(10);
			printf("%d end  ",i );
			});
	}
	return app.exec();
}

The printed result of this code is "0 start 1 start 2 start 3 start 4 start 4 end 3 end 2 end 1 end 0 end",
But as expected, the eventloop of 0 should be the first to end, so the 0 end should be printed first.