Method thread_id

oneflow/extension/stack/stacktrace.h:931–931

  size_t load_here(size_t = 0) { return 0; }
  size_t load_from(void*, size_t = 0, void* = nullptr, void* = nullptr) { return 0; }
  size_t thread_id() const { return 0; }
  void skip_n_firsts(size_t) {}
};