Extends QThread to create thread : QThread « Qt « C++






Extends QThread to create thread

  


Foundations of Qt Development\Chapter12\inorderthreads\main.cpp
/*
 * Copyright (c) 2006-2007, Johan Thelin
 * 
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 * are permitted provided that the following conditions are met:
 * 
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 *       this list of conditions and the following disclaimer.
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 *       this list of conditions and the following disclaimer in the documentation 
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 *       without specific prior written permission.
 * 
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#include <QApplication>
#include <QThread>
#include <QMutex>
#include <QMessageBox>

#include <QtDebug>

class TextThread : public QThread
{
public:
  TextThread( QString text );
  
  void run();
  
private:
  QString m_text;
};

bool stopThreads = false;

TextThread::TextThread( QString text ) : QThread()
{
  m_text = text;
}

QMutex mutex;

void TextThread::run()
{
  while( !stopThreads )
  {
    mutex.lock();
    if( stopThreads )
      return;
      
    qDebug() << m_text;
    sleep( 1 );
    mutex.unlock();
  }
}

int main( int argc, char **argv )
{
  QApplication app( argc, argv );
  
  TextThread foo( "Foo" ), bar( "Bar" );
  
  foo.start();
  bar.start();
  
  QMessageBox::information( 0, "Threading", "Close me to stop!" );
  
  stopThreads = true;
  
  foo.wait();
  bar.wait();
    
  return 0;
}

   
    
  








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