Method HandleSignal

cpp/src/arrow/util/io_util_test.cc:1031–1034

  static std::atomic<int> signal_received_;

  static void HandleSignal(int signum) {
    ReinstateSignalHandler(signum, &HandleSignal);
    signal_received_.store(signum);
  }
};

std::atomic<int> TestSendSignal::signal_received_;