How to stop a delay started inside QtConcurrent thread ?

[xenovas]

Hi,

i have some code running in a thread using QtConcurrent and i also use

QThread::currentThread()->msleep(650000);

in order to delay a while loop for about 10 mins.. but i want to stop this delay when the application ends. could you please provide some thoughts ?

[fcarney]

Create a loop inside your thread:

int count = 0;
while(sleeping){
  QThread::currentThread()->msleep(1000);

  // process events like signals
  QCoreApplication::processEvents();  

  count++;
  if(count>=650){
    sleeping = false;
  }
}

Put a slot in your thread that will set sleeping to false when you want to end early. You need to process
events in order to handle a signal. At most you will wait 1 second for this to quit. Use finer grain sleep if you desire more granularity.

[xenovas]

@fcarney Thank you this helped me a lot!

[Christian Ehrlicher]

@xenovas said in How to stop a delay started inside QtConcurrent thread ?:

in order to delay a while loop for about 10 mins

Use signals and slots instead - this is not the way to go.

[JonB]

@xenovas
Suggest you heed @Christian-Ehrlicher's post. Using threads/sleep/processEvents is not a good way to go when signals/slots are on offer.

[xenovas]

@jonB @Christian-Ehrlicher i will try to use signals and slots thank you