How to loop multithreaded job

[stefan]

Hi all!

My base classes are:

class Manager: public QThread
class Worker: public QThread

class Manager: public QThread
class Worker: public QThread

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Manager starts 4 (independed) workers and "listens" for their signals (and counts finished workers). Manager restarts workers several times.
It also emits final results to GUI thread.
This is all working flawless.

Now, i want to loop whole job (manager's job) in Tester thread.

void Tester::run(void)
{
    for (int iParam1 = 0; iParam1 < parameter1.size(); iParam1++)
    {
        for (int iParam2 = 0; iParam2 < parameter2.size(); iParam2++)
        {
            double tmpValueSum = 0.0;
            for (int iRun = 0; iRun < numberOfRuns; iRun++)
            {
                manager->parameter1 = parameter1[iParam1];
                manager->parameter2 = parameter2[iParam2];
 
                manager->run();
                manager->wait(); // This is a problem
            }
            results[iParam1][iParam2] = tmpValueSum / double(numberOfRuns);
        }
    }
}

void Tester::run(void)
{
    for (int iParam1 = 0; iParam1 < parameter1.size(); iParam1++)
    {
        for (int iParam2 = 0; iParam2 < parameter2.size(); iParam2++)
        {
            double tmpValueSum = 0.0;
            for (int iRun = 0; iRun < numberOfRuns; iRun++)
            {
                manager->parameter1 = parameter1[iParam1];
                manager->parameter2 = parameter2[iParam2];

                manager->run();
                manager->wait(); // This is a problem
            }
            results[iParam1][iParam2] = tmpValueSum / double(numberOfRuns);
        }
    }
}

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I miss something in the way I understood wait function. I tried exit(), quit() and exec() in Manager...
What modifications should be implemented to make this possible?

In base case, i only have manager->run(); and there is no need for waiting... Manager emits some output and final results to GUI thread.

Thanks!

EDIT: I found this example
.
As I see it, the only important difference is that my thread raises other threads and have few connections...

[wysota]

Calling run() does not start a new thread.

[anda_skoa]

As wysota said, QThread::run() is the method that you would like to have executed by the new thread. If you call it directly, obviously your current thread will execute it instead, in your case your test program.

What you actually want to do is start the manager so its run() method is executed by a new thread.

manager->start();

manager->start();

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Cheers,
_

[wysota]

...which leads to suspecting the OP never had 4 threads running there at all.

[stefan]

What you actually want to do is start the manager so its run() method is executed by a new thread.

manager->start();

manager->start();

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Cheers,
_

ough... I know that. It's a typo... this could be the cause of all problems. I'll try it later.
Sorry, i really didn't see it...