问如何在第三方函数并发调用前运行线程？

EN

#include "mythread.h"
#include "ui_mythread.h"
Mythread::Mythread(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Mythread)
{
    ui->setupUi(this);
    //Debug
    this->dumpObjectInfo();
    //myWorker->dumpObjectInfo();
}

Mythread::~Mythread()
{
    myWorker->abort();
    WorkerThread->wait();
    qDebug()<<"Deleting thread and worker in Thread "<<this->QObject::thread()->currentThreadId();
    delete WorkerThread;
    delete myWorker;
    delete ui;
}
void Mythread::on_pushButton_2_clicked()
{
    qDebug() << "stopwork signal emmitted";
    emit stopWorkSignal();
}

void Mythread::on_pushButton_4_clicked()
{
    myWorker = new worker;
    WorkerThread = new QThread;
    myWorker->moveToThread(WorkerThread);
    WorkerThread->start();

    connect(myWorker, SIGNAL(valueChanged(QString)),this, SLOT(myfunc(QString)));
    connect(WorkerThread, SIGNAL(started()), myWorker, SLOT(StartWork()));
    connect(this, SIGNAL(stopWorkSignal()), myWorker, SLOT(abort()));
    qDebug()<<"inside work";
    int i =0;
    while (i<1000)
    {
    qDebug()<<":count *i=========>"<<i;
    i++;
    }
    return;
}

void Mythread::myfunc(QString s)
{
    qDebug()<<"thread TXT"<<s;
    //
    ui->label->setText(s);
}

#include "worker.h"
#include<QDebug>
#include<mythread.h>

worker::worker(QObject *parent) :
    QObject(parent)
{
    _working =false;
    _abort = false;
}

void worker::do_Work()
{
    qDebug() << "inside do Work";
    qDebug()<<"Starting worker process in Thread   "<<thread()->currentThreadId();
    for (int i = 1; i<100; i ++) {
    // Checks if the process should be aborted
    mutex.lock();
    bool abort = _abort;
    mutex.unlock();
    if (abort) {
        qDebug()<<"Aborting worker process in Thread "<<thread()->currentThreadId();
        break;
    }

    // This will stupidly wait 1 sec doing nothing...
    QEventLoop loop;
    loop.processEvents(QEventLoop::AllEvents);
    QTimer::singleShot(100, &loop, SLOT(quit()));
    loop.exec();

     //Once we're done waiting, value is updated
    emit valueChanged(QString("%1").arg(i++));
    }

    mutex.lock();
    _working = false;
    mutex.unlock();

    qDebug()<<"Worker process finished in Thread "<<thread()->currentThreadId();
    emit finished();
}


void worker::abort()
{
    qDebug()<<"Stop Thread";
    mutex.lock();
    if (_working) {
    _abort = true;
    qDebug()<<"Request worker aborting in Thread "<<thread()->currentThreadId();
    }
    mutex.unlock();
    emit finished();
    //lbl->close();
    //lbl->deleteLater();
}
void worker::StartWork()
{
    qDebug() << "inside StartWork";
    _working = true;
    _abort = false;

    //emit running();
    do_Work();
}

  :count *i=========> 988 
  :count *i=========> 989 
  :count *i=========> 990 
  :count *i=========> 991 
  :count *i=========> 992 

 thread TXT "1" 
 thread TXT "3" 
 thread TXT "5" 
 thread TXT "7"