Problem for While(true) in QT QThread Run function

tony.dacunzi

Hi,

All,

I created one thread, and the run function looks like below:

void Compass_Message_Handler::run()
{
    this->handleMessage();

    return;
}

void Compass_Message_Handler::handleMessage()
{
    while(true)
    {
        if(m_canHandleNxtMsg)//line A
        {
            ////////////////////////////////////
/////////////////////////////////////////////////
        }
    }
}

I set a break point at line A. but i find that after several execution, i need to wait for 3 to 5 seconds for the while to run again to the break point line A.

Do you know why, is it because multi thread and the cpu need to run other thread??????

[Fixed code formatting ~kshegunov]

dheerendra

welcome to the forum. I don't see any issue with your code. Do you see the same behaviour when you run the above program without break point ? What are you doing inside the if condition ?

tony.dacunzi

Hi,

Dheerendra,

Thanks for your answer, i still not check if i run not in debug mode.

I will check it ,thanks.

jsulm

@dheerendra Asked what you are doing inside that if() condition. Is it something long lasting?