AFNetworkReachabilityStatusUnknown = -1,
AFNetworkReachabilityStatusNotReachable = 0,
AFNetworkReachabilityStatusReachableViaWWAN = 1,
AFNetworkReachabilityStatusReachableViaWiFi = 2,
static dispatch_queue_t af_http_request_operation_processing_queue;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
af_http_request_operation_processing_queue = dispatch_queue_create("com.alamofire.networking.http-request.processing", DISPATCH_QUEUE_CONCURRENT);
});
return af_http_request_operation_processing_queue;