Get current dispatch queue?

If you are working with an NSOperationQueue, it can provide the current dispatch queue for you.

NSOperationQueue has the class function [NSOperationQueue currentQueue], which returns the current queue as a NSOperationQueue object. To get the dispatch queue object you can use [NSOperationQueue currentQueue].underlyingQueue, which returns your currrent queue as a dispatch_queue_t.

Swift 3:

if let currentDispatch = OperationQueue.current?.underlyingQueue {
    print(currentDispatch)
}

– works for main queue!