iOS 15.5, Xcode 13.31, Swift 5, UIKit 환경에서 진행했습니다. extension Thread { var threadName: String { if let currentOperationQueue = OperationQueue.current?.name { return "OperationQueue: \(currentOperationQueue)" } else if let underlyingDispatchQueue = OperationQueue.current?.underlyingQueue?.label { return "DispatchQueue: \(underlyingDispatchQueue)" } else { let name = "undefined" return String(cStri..