CODEWITHSUNDEEP
nsarraygrand-central-dispatch
Carusd Ray
Carusd Ray

Reputation: 1033

How to store dispatch_queue_t in nsarray

Here I have a bunch of dispatch_queue_t, and I want to organize them with a NSArray. But as far as I know, there's no such API to do so. So how can i achieve that?

Upvotes: 0

Views: 354

Answers (1)

Kazuki Sakamoto
Kazuki Sakamoto

Reputation: 14009

NSArray is not mutable. You must use NSMutableArray, that is subclass of NSArray, to add objects.

And, from iOS 6.0 SDK and the Mac OS X 10.8 SDK, Dispatch Queue is declared as Objective-C types. Thus you can use Dispatch Queue object as Objective-C object.

@import Foundation;

int main()
{
    NSMutableArray *array = [[NSMutableArray alloc] init];

    dispatch_queue_t q = dispatch_get_global_queue(0, 0);
    NSLog(@"       q=%@", q);

    [array addObject:q];

    NSLog(@"array[0]=%@", array[0]);

    return 0;
}

Result:

       q=<OS_dispatch_queue_root: com.apple.root.default-qos[0x7fff79749b40]>
array[0]=<OS_dispatch_queue_root: com.apple.root.default-qos[0x7fff79749b40]>

Upvotes: 2

Related Questions