Method Create

include/dmlc/memory.h:225–232

   */
  template <typename... Args>
  inline static ThreadlocalSharedPtr<T> Create(Args&&... args) {
    ThreadlocalAllocator<RefBlock> arena;
    ThreadlocalSharedPtr<T> p;
    p.block_ = arena.allocate(1);
    p.block_->use_count_ = 1;
    new (&(p.block_->data)) T(std::forward<Args>(args)...);
    return p;
  }

 private:
  // internal reference block