Method AddHold

tensorflow/core/framework/op_segment.cc:74–82

}

void OpSegment::AddHold(const string& session_handle) {
  mutex_lock l(mu_);
  Item** item = &sessions_[session_handle];
  if (*item == nullptr) {
    *item = new Item;  // num_holds == 1
  } else {
    ++((*item)->num_holds);
  }
}

void OpSegment::RemoveHold(const string& session_handle) {
  Item* item = nullptr;