QThread - Why do threads wait one another to start running?

fnoyanisi

Hi

I have the following code. When I run the code, first thread 0 starts and finishes and then thread 1 starts and finishes.
I designed to code such that running time for thread 0 is much longer than thread 1 and I was expecting, while thread 0 is running, I should see thread 1 starts running but it doesn't

[code]#include <QtCore/QCoreApplication>
#include <QThread>
#include <iostream>
#include <cstdlib>
#include <windows.h>

using namespace std;

static int GlobalThreadId = 0;

class MyThread : public QThread {
private:
int t_id;
public:
MyThread();
void run();
};

MyThread::MyThread(){
cout << "Thread initialized" << endl;
t_id = GlobalThreadId;
GlobalThreadId++;
}

void MyThread::run (){
cout << "Thread number " << t_id << " started." << endl;

int val = (1-t_id)*1000;
for (int y=0; y<(val*1000); y++)
        for (int l=0; l<100;l++){}

cout << "Thread number " << t_id << " completed." << endl;

}

int main(int argc, char *argv[])
{
MyThread *t[8];
int i;

cout << "Number of Threads that will be created : " << QThread::idealThreadCount() << endl;

int CreatedThreadNumber = 0;
for (int x=0; x < QThread::idealThreadCount() ; x++) {
    t[x] = new MyThread;
    CreatedThreadNumber++;
}

for (int l=0; l < CreatedThreadNumber; l++) {
    t[l]->run();
}

cin >> i;
return 0;

}[/code]

depecheSoul

Use the start() method to begin execution, not run() method.

In this link you can find good tutorials about threads: http://www.voidrealms.com/tutorials.aspx?filter=qt