Question

I have a function perform_function. I want to perform it 1000 times. I would usually write a for-loop to do this e.g. ;

for(int i=0; i<1000; i++)
{
   [self perform_function]; 
}

But i want the function to finish before iterating to the next integer so it’s asyncronous. How could i do this?

Answer 1

Try using dispatch_async, which will let you execute code in the background:

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), ^{
     // insert for loop here
});