Function GetRandomSeed

cpp/src/arrow/util/io_util.cc:2146–2154

}  // namespace

int64_t GetRandomSeed() {
  // The process-global seed generator to aims to avoid calling std::random_device
  // unless truly necessary (it can block on some systems, see ARROW-10287).
  static auto seed_gen = GetSeedGenerator();
  static std::mutex seed_gen_mutex;

  std::lock_guard<std::mutex> lock(seed_gen_mutex);
  return static_cast<int64_t>(seed_gen());
}

uint64_t GetThreadId() {
  uint64_t equiv{0};