gistfile1.m

- (void)pollUntilActive:(OpenStackAccount *)account withProgress:(ASIBasicBlock)progressBlock complete:(ASIBasicBlock)completeBlock {
    if ([self shouldBePolled]) {
        NSString *endpoint = [account loadBalancerEndpointForRegion:self.region];
        __block LoadBalancerRequest *request = [LoadBalancerRequest getLoadBalancerDetailsRequest:account loadBalancer:self endpoint:endpoint];
        request.delegate = self;
        [request setCompletionBlock:^{
            if ([request isSuccess]) {
                
                LoadBalancer *newLB = [request loadBalancer:account];                
                self.status = newLB.status;
                self.progress = newLB.progress;
                // load LB stuff                
                
                NSLog(@"lb poll status: %@", self.status);
                
                if ([self shouldBePolled]) {
                    if (progressBlock) {
                        progressBlock();
                    }
                    [self pollUntilActive:account withProgress:nil complete:[[completeBlock copy] autorelease]];
                } else {
                    completeBlock();
                }
            }
        }];
        [request setFailedBlock:^{
            [self pollUntilActive:account withProgress:[[progressBlock copy] autorelease] complete:[[completeBlock copy] autorelease]];
        }];
        [request startAsynchronous];
    } else {
        completeBlock();
    }
}