QThread count in Qt applications.

[hashimov]

Hi. For testing i create 1000 threads in my application with QThread class, and all this threads are running. But i get QThread::start: Failed to create thread (The access code is invalid.) this message. What is problem?

my class is.

#include <QtCore/QCoreApplication>
#include "mythread.h"
 
......int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
 
QCoreApplication * app = qApp;
 
for (int i=0; i < 1000; i++)
{
MyThread * thread = new MyThread(i, app);
MyThread::connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));
MyThread::connect(thread, SIGNAL(terminated()), thread, SLOT(deleteLater()));
thread->start();
}
 
return a.exec();
}
 
#ifndef MYTHREAD_H
#define MYTHREAD_H
#include <QtCore/QThread>
class MyThread : public QThread
{
Q_OBJECT
public:
explicit MyThread(int number, QObject *parent = 0);
void run();
private:
int number;
signals:
public slots:
};
#endif // MYTHREAD_H
#include "mythread.h"
#include <stdio.h>
 
MyThread::MyThread(int number, QObject *parent) :
QThread(parent), number(number)
{
}
 
void MyThread::run()
{
while (true)
{
//printf("Running thread number: %d\n", number);
QThread::msleep(10000);
}
}

#include <QtCore/QCoreApplication>
#include "mythread.h"

......int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);

QCoreApplication * app = qApp;

for (int i=0; i < 1000; i++)
{
MyThread * thread = new MyThread(i, app);
MyThread::connect(thread, SIGNAL(finished()), thread, SLOT(deleteLater()));
MyThread::connect(thread, SIGNAL(terminated()), thread, SLOT(deleteLater()));
thread->start();
}

return a.exec();
}

#ifndef MYTHREAD_H
#define MYTHREAD_H
#include <QtCore/QThread>
class MyThread : public QThread
{
Q_OBJECT
public:
explicit MyThread(int number, QObject *parent = 0);
void run();
private:
int number;
signals:
public slots:
};
#endif // MYTHREAD_H
#include "mythread.h"
#include <stdio.h>

MyThread::MyThread(int number, QObject *parent) :
QThread(parent), number(number)
{
}

void MyThread::run()
{
while (true)
{
//printf("Running thread number: %d\n", number);
QThread::msleep(10000);
}
}

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