linux c qt 多线程

#include <QCoreApplication>
#include <QThread>
#include <QDebug>

class Worker : public QObject {
    Q_OBJECT
public slots:
    void doWork() {
        qDebug() << "Worker thread:" << QThread::currentThreadId();
        // 模拟耗时操作
        QThread::sleep(5);
        emit workFinished();
    }

signals:
    void workFinished();
};

class WorkerThread : public QThread {
    Q_OBJECT
protected:
    void run() override {
        Worker worker;
        connect(this, &WorkerThread::started, &worker, &Worker::doWork);
        connect(&worker, &Worker::workFinished, this, &WorkerThread::quit);
        connect(&worker, &Worker::workFinished, &worker, &Worker::deleteLater);
        connect(this, &WorkerThread::finished, this, &WorkerThread::deleteLater);
        exec();
    }
};

int main(int argc, char *argv[]) {
    QCoreApplication a(argc, argv);

    WorkerThread thread;
    qDebug() << "Main thread:" << QThread::currentThreadId();
    thread.start();

    return a.exec();
}

#include "main.moc"

#include <QMutex>

class SharedData {
public:
    void setData(int value) {
        QMutexLocker locker(&mutex);
        data = value;
    }

    int getData() {
        QMutexLocker locker(&mutex);
        return data;
    }

private:
    int data;
    QMutex mutex;
};

#include <QtConcurrent/QtConcurrentRun>
#include <QFuture>

void process(int value) {
    // 处理数据
}

int main() {
    QFuture<void> future = QtConcurrent::run(process, 42);
    // 等待任务完成
    future.waitForFinished();
    return 0;
}