Method ~TemporaryDir

cpp/src/arrow/util/io_util.cc:2005–2008

TemporaryDir::TemporaryDir(PlatformFilename&& path) : path_(std::move(path)) {}

TemporaryDir::~TemporaryDir() {
  ARROW_WARN_NOT_OK(DeleteDirTree(path_).status(),
                    "When trying to delete temporary directory");
}

SignalHandler::SignalHandler() : SignalHandler(static_cast<Callback>(nullptr)) {}