Method ~GcsDnsCache

tensorflow/core/platform/cloud/gcs_dns_cache.h:44–48

  GcsDnsCache(Env* env, int64 refresh_rate_secs);

  ~GcsDnsCache() {
    mutex_lock l(mu_);
    cancelled_ = true;
    cond_var_.notify_one();
  }

  // Annotate the given HttpRequest with resolve overrides from the cache.
  void AnnotateRequest(HttpRequest* request);