Method MakeUnique

cpp/src/arrow/memory_pool.cc:969–978

  }

  static std::unique_ptr<PoolBuffer> MakeUnique(MemoryPool* pool, int64_t alignment) {
    std::shared_ptr<MemoryManager> mm;
    if (pool == nullptr) {
      pool = default_memory_pool();
      mm = default_cpu_memory_manager();
    } else {
      mm = CPUDevice::memory_manager(pool);
    }
    return std::make_unique<PoolBuffer>(std::move(mm), pool, alignment);
  }

 private:
  static Result<int64_t> RoundCapacity(int64_t capacity) {