所以我在构造函数中有以下代码。
m_someObject = new SomeObject();
m_someObject->moveToThread(&m_thread);
m_thread.start();
connect(&m_thread, &QThread::finished, m_someObject, &QObject::deleteLater);
任何我在析构函数中都有以下代码。
m_thread.terminate();
while (m_thread.isRunning())
{
}
尽管已完成m_someObject
与m_thread
的{{1}}插槽的连接,我是否仍需要删除deleteLater
?
答案 0 :(得分:1)
否,没有必要。只要线程最终发出结束,连接就可以完全按照您想要的方式进行操作。请参见以下代码:
#include <QObject>
#include <QThread>
#include <iostream>
class Test : public QObject {
Q_OBJECT
public:
Test(){
std::cout <<"c'tor" << std::endl;
}
~Test(){
std::cout << "d'tor" << std::endl;
}
};
void startThread(){
QThread* thr = new QThread();
Test* test = new Test();
connect(thr, &QThread::finished, test, &QObject::deleteLater);
test->moveToThread( thr );
thr->start();
thr->quit();
thr->wait();
delete thr;
}
输出符合预期:
c'tor
d'tor
请注意,由于该代码段缺少主代码,因此不会立即进行编译。