急!!!Linux编译死锁多线程在qt中报错!求大神指点!! 40C

在qt里写的死锁多线程,但是一直报错error: collect2: error: ld returned 1 exit status;
qt菜鸟感觉自己没哪里写错了,于是死都看不出bug在哪,快要die了

//Pthread.h


#include <QThread>
#include <QDebug>

class Pthread1: public QThread
{
    Q_OBJECT
protected:
  //线程退出的标识量
  volatile bool m_stop;
  void run();

signals:
  void send_signal(int);//自定义信号

public:
    Pthread1();
    ~Pthread1();
    void stop();//线程退出的接口函数,用户使用
};

class Qthread1: public QThread
{
    Q_OBJECT
protected:
  //线程退出的标识量
  volatile bool m_stop;
  void run();

signals:
  void send_signal(int);//自定义信号

public:
    Qthread1();
    ~Qthread1();
    void stop();//线程退出的接口函数,用户使用
};

//Pthread.cpp


#include "Pthread1.h"
#include <QMutex>
#include <unistd.h>  //用于sleep

QMutex MutexA;
QMutex MutexB;

Pthread1::Pthread1(){
    m_stop = false;
}

Pthread1::~Pthread1(){

}

void Pthread1::stop(){
    m_stop = true;
}

void Pthread1::run(){

    int step = 0;
    while(!m_stop)
    {
        MutexA.lock();
        step = 1;  emit send_signal(step);
        sleep(1000);
        MutexB.lock();
        step = 3;  emit send_signal(step);
        MutexA.unlock();
        step = 4;  emit send_signal(step);
        msleep(1);
        MutexB.unlock();
        step = 5;  emit send_signal(step);
        msleep(1);
    }
    m_stop = 0;

}

Qthread1::Qthread1(){
    m_stop = false;
}

Qthread1::~Qthread1(){

}

void Qthread1::stop(){
    m_stop = true;
}

void Qthread1::run(){

    int step = 0;
    while(!m_stop)
    {
        MutexB.lock();
        step = 2; emit send_signal(step);
        sleep(1000);
        MutexA.lock();
        step = 6; emit send_signal(step);
        MutexB.unlock();
        step = 7; emit send_signal(step);
        msleep(1);
        MutexA.unlock();
        step = 8; emit send_signal(step);
        msleep(1);
    }
    m_stop = 0;

}


//MainWindow.h

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0, Qt::WindowFlags flags = 0);
    ~MainWindow();

private:
    Ui::MainWindow *ui;
    Pthread1 *p1;
    Qthread1 *q1;

public slots:
    void send_cmd(int);

    void lock();
    void unlock();
};

//MainWindow.cpp


#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <qmessagebox.h>
#include <semaphore.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>  //用于sleep

using namespace std;

MainWindow::MainWindow(QWidget *parent, Qt::WindowFlags flags) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
        p1 = new Pthread1;
    q1 = new Qthread1;

        connect(ui->pushButton_2_1_b,SIGNAL(clicked()),this,SLOT(lock()));
    connect(p1,SIGNAL(send_signal(int )),this,SLOT(send_cmd(int )),Qt::BlockingQueuedConnection);
    connect(q1,SIGNAL(send_signal(int )),this,SLOT(send_cmd(int )),Qt::BlockingQueuedConnection);

}

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

void MainWindow::send_cmd(int step){

    if(step == 1){
        //P1 get mutexA
        QPropertyAnimation *animation = new QPropertyAnimation(ui->pushButton_2_1_1,"geometry");
        animation->setDuration(1000);
        animation->setStartValue(QRect(530,140,141,71));
        animation->setEndValue(QRect(250,420,141,71));
        animation->start();
    }
    else if(step == 2){
        //Q1 get mutexB
        QPropertyAnimation *animation1 = new QPropertyAnimation(ui->pushButton_2_1_2,"geometry");
        animation1->setDuration(1000);
        animation1->setStartValue(QRect(670,210,141,71));
        animation1->setEndValue(QRect(110,420,141,71));
        animation1->start();
    }
    else if(step == 3){
        //P2 release mutexA
        QPropertyAnimation *animation3 = new QPropertyAnimation(ui->pushButton_2_1_1,"geometry");
        animation3->setDuration(1000);
        animation3->setStartValue(QRect(250,420,141,71)); animation3->setEndValue(QRect(390,420,141,71));
        animation3->start();
        QPropertyAnimation *animation4 = new QPropertyAnimation(ui->pushButton_2_1_1,"geometry");
        animation4->setDuration(1000);
        animation4->setStartValue(QRect(390,420,141,71)); animation4->setEndValue(QRect(390,280,141,71));
        animation4->start();
    }
    else if(step == 4){
        //P2 get mutexB
        QPropertyAnimation *animation5 = new QPropertyAnimation(ui->pushButton_2_1_2,"geometry");
        animation5->setDuration(1000);
        animation5->setStartValue(QRect(530,210,141,71)); animation5->setEndValue(QRect(530,420,141,71));
        animation5->start();
    }
    else if(step == 5){
        //P2 release mutexB
        QPropertyAnimation *animation6 = new QPropertyAnimation(ui->pushButton_2_1_2,"geometry");
        animation6->setDuration(1000);
        animation6->setStartValue(QRect(530,420,141,71)); animation6->setEndValue(QRect(670,420,141,71));
        animation6->start();
        QPropertyAnimation *animation7 = new QPropertyAnimation(ui->pushButton_2_1_2,"geometry");
        animation7->setDuration(1000);
        animation7->setStartValue(QRect(670,420,141,71)); animation7->setEndValue(QRect(670,210,141,71));
        animation7->start();
    }
    else if(step == 6){
        //Q2 get mutexA
        QPropertyAnimation *animation9 = new QPropertyAnimation(ui->pushButton_2_1_1,"geometry");
        animation9->setDuration(1000);
        animation9->setStartValue(QRect(390,280,141,71)); animation9->setEndValue(QRect(110,280,141,71));
        animation9->start();
    }
    else if(step == 7){
        //Q2 release mutexB
        QPropertyAnimation *animation10 = new QPropertyAnimation(ui->pushButton_2_1_2,"geometry");
        animation10->setDuration(1000);
        animation10->setStartValue(QRect(110,420,141,71)); animation10->setEndValue(QRect(110,210,141,71));
        animation10->start();
        QPropertyAnimation *animation11 = new QPropertyAnimation(ui->pushButton_2_1_2,"geometry");
        animation11->setDuration(1000);
        animation11->setStartValue(QRect(110,210,141,71)); animation11->setEndValue(QRect(530,210,141,71));
        animation11->start();
    }
    else if(step == 8){
        //Q2 release mutexA
        QPropertyAnimation *animation12 = new QPropertyAnimation(ui->pushButton_2_1_1,"geometry");
        animation12->setDuration(1000);
        animation12->setStartValue(QRect(110,280,141,71));
        animation12->setEndValue(QRect(110,140,141,71));
        animation12->start();
        QPropertyAnimation *animation13 = new QPropertyAnimation(ui->pushButton_2_1_1,"geometry");
        animation13->setDuration(1000);
        animation13->setStartValue(QRect(110,140,141,71));
        animation13->setEndValue(QRect(530,140,141,71));
        animation13->start();
    }

}

void MainWindow::lock(void) {

    q1->start();
    p1->start();
    q1->stop();
    p1->stop();
    q1->wait();
    p1->wait();

}

顺便想问一句,怎样在qt里一次创建多个线程就像Thread[ ]类似数组那样!!!

1个回答

error: collect2: error: ld returned 1 exit status说明编译有错误,程序根本没有运行起来,检查下你的代码

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