Manual retain with ARC

Question

Before ARC I had the following code that retains the delegate while an async operation is in progress:

- (void)startAsyncWork
{
    [_delegate retain];
    // ca         


        

Answer 1

Something like this:

- (void)startAsyncWork
{
    id delegate = _delegate;
    dispatch_async(/* some queue */, ^{
        // do work
        [delegate doSomething];
    }
}

The block will retain the delegate as long as needed...