VideoForV4L2.hpp
#ifndef VIDEOFORV4L2_HPP
#define VIDEOFORV4L2_HPP
#include <QObject>
#include <QString>
#include "IoctlWorker.hpp"
class VideoForV4L2 : public QObject
{
Q_OBJECT
public:
explicit VideoForV4L2(QObject *parent = nullptr);
~VideoForV4L2();
signals:
void videoForV4L2(VideoForV4L2 *videoForV4L2);
public:
QString data = "yudabo";
};
#endif // VIDEOFORV4L2_HPP
VideoForV4L2.cpp
#include "VideoForV4L2.hpp"
VideoForV4L2::VideoForV4L2(QObject *parent) : QObject(parent)
{
qWarning() << "gui current thread ID:" << QThread::currentThreadId() << '\n';
// 指针传递方式一
IoctlWorker *worker = new IoctlWorker(this);
// 指针传递方式二
connect(this, &VideoForV4L2::videoForV4L2, worker, &IoctlWorker::videoForV4L2Changed);
emit videoForV4L2(this);
}
VideoForV4L2::~VideoForV4L2()
{}
IoctlWorker.hpp
#ifndef IOCTLWORKER_HPP
#define IOCTLWORKER_HPP
#include <QObject>
#include "VideoForV4L2.hpp"
class VideoForV4L2;
class IoctlWorker : public QObject
{
Q_OBJECT
public:
explicit IoctlWorker(VideoForV4L2 *videoForV4L2 = nullptr);
~IoctlWorker();
public slots:
void videoForV4L2Changed(VideoForV4L2 *videoForV4L2);
};
#endif // IOCTLWORKER_HPP
IoctlWorker.cpp
#include "IoctlWorker.hpp"
#include <QDebug>
IoctlWorker::IoctlWorker(VideoForV4L2 *videoForV4L2) : QObject(videoForV4L2)
{
videoForV4L2->data;// yudabo
}
IoctlWorker::~IoctlWorker()
{}
void IoctlWorker::videoForV4L2Changed(VideoForV4L2 *videoForV4L2)
{
videoForV4L2->data;// yudabo
}
