Do 2 objects creating serial queues with the same name share the same queue

Question

Not sure on the behavior, because I suspect I am getting a deadlock,

I have a class with multiple objects - each object creates a queue with the same name. I'm not sure if GCD is reusing the same queue between the objects or if they just share the same name.

For instance

@interface MyClass  -(void)doSomeWork @property (nonatomic,strong) dispatch_queue_t myQueue;  @end  @implementation MyClass  -(id)init {   self = [super init];   self.myQueue = dispatch_queue_create("MyQueue",DISPATCH_QUEUE_SERIAL);   return self; }  -(void)doSomeWork {   dispatch_async(self.myQueue,^{     // some long running work   }); }  @end   @interface SomeClassWhichCreatesALotOfObjects  @end   @implementation SomeClassWhichCreatesALotOfObjects  -(void)someMethod {   for(int i = 0; i < 10000; i++)   {     MyClass *object = [MyClass new];     [object doSomeWork]; // are these running in serial to each other or are each offset to the queue their object has created? Can't understand from the debugger   } } @end 

Answer 1

As Apple's documentation states, the label is:

A string label to attach to the queue to uniquely identify it in debugging tools such as Instruments...

It is used as a hint, nothing more.

EDIT

Here's the code you want for using a shared queue.

+ (dispatch_queue_t)sharedQueue {     static dispatch_queue_t sharedQueue;     static dispatch_once_t onceToken;     dispatch_once(&onceToken, ^{         sharedQueue = dispatch_queue_create("MyQueue", NULL);     });     return sharedQueue; }