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linux多线程实现哲学家问题，根据哲学家吃饭、拿筷子、放下筷子......

首先，主线程使用Qt下的GUI的简单一个按钮控制就行了

maindesttop.cpp

#include "maindesttop.h"
#include "ui_maindesttop.h"

QMutex mutex01;
QMutex mutex02;
QMutex mutex03;
QMutex mutex04;
QMutex mutex05;

int n1=1;
int n2=1;
int n3=1;
int n4=1;
int n5=1;

QWaitCondition waitcondition001;
QWaitCondition waitcondition002;
QWaitCondition waitcondition003;
QWaitCondition waitcondition004;
QWaitCondition waitcondition005;

MainDestTop::MainDestTop(QWidget *parent)
        : QWidget(parent), ui(new Ui::MainDestTop)
{
    ui->setupUi(this);
}

MainDestTop::~MainDestTop()
{
    delete ui;
}

void MainDestTop::on_pushButtonStart_clicked()
{
    pro001=new Proferssor001;
    pro002=new Professor002;
    pro003=new Professor003;
    pro004=new Professor004;
    pro005=new Professor005;

    pro001->start();
    pro002->start();
    pro003->start();
    pro004->start();
    pro005->start();

    return ;
}

void MainDestTop::StopThread()
{
    pro001->quit();
    pro001->wait();
    pro001->deleteLater();
    delete pro001;
    pro001=NULL;

    pro002->quit();
    pro002->wait();
    pro002->deleteLater();
    delete pro002;
    pro002=NULL;

    pro003->quit();
    pro003->wait();
    pro003->deleteLater();
    delete pro003;
    pro003=NULL;

    pro004->quit();
    pro004->wait();
    pro004->deleteLater();
    delete pro004;
    pro004=NULL;

    pro005- >quit();
    pro005->wait();
    pro005->deleteLater();
    delete pro005;
    pro005=NULL;
}

#ifndef MAINDESTTOP_H
#define MAINDESTTOP_H

#include <QtGui/QWidget>
#include <QtCore>
#include <QMutex>
#include "proferssor001.h"
#include "professor002.h"
#include "professor003.h"
#include "professor004.h"
#include "professor005.h"

namespace Ui
{
    class MainDestTop;
}

class MainDestTop : public QWidget
{
    Q_OBJECT

public:
    MainDestTop(QWidget *parent = 0);
    ~MainDestTop();
    void StopThread();

private:
    Ui::MainDestTop *ui;

    Proferssor001 *pro001;
    Professor002 *pro002;
    Professor003 *pro003;
    Professor004 *pro004;
    Professor005 *pro005;


private slots:
    void on_pushButtonStart_clicked();
};

#endif // MAINDESTTOP_H

其次，子线程源码如下：

#ifndef PROFERSSOR001_H
#define PROFERSSOR001_H

#include <QThread>
#include <QtCore>

class Proferssor001 : public QThread
{
public:
    Proferssor001();
    void run();
};

#endif // PROFERSSOR001_H

#include "proferssor001.h"

/****************
  proferssor001---->A  proferssor002---->B   proferssor003--->C   proferssor00