QT creator中创建并简单运行线程（2）

头文件
mainwindow.h
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#include
#include


class Producer : public QThread
{
public:
    Producer(const QString &prefix);
    void stopThread(bool isStop);
protected:
    void produceMessage(int x);
    void run();
private:
    QString m_prefix;
    bool stopThreads;
};
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mainwindow.cpp
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#include

 extern "C" {
#include "acr320_alsa_api.h"
char buf[]={"credit.wav"};
 }
bool stopThreads = false;
Producer pa("A");

Producer::Producer(const QString &prefix) : QThread()
{
    m_prefix = prefix;
    stopThreads = false;
}
void Producer::stopThread(bool isStop) {
    stopThreads = isStop;
}
void Producer::produceMessage(int x)
{

    qDebug() << QString("Producing %1: %2").arg(m_prefix).arg(x);
    if( acr320_play_sound(buf) != 0)
        return;

}
void Producer::run() {
    for(int i = 0; !stopThreads; i++) {
        produceMessage(i);
        sleep(1);
    }
}