text: /**
   * Copyright 2019 Huawei Technologies Co., Ltd
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef MINDSPORE_GET_NEXT_KERNEL_H
  #define MINDSPORE_GET_NEXT_KERNEL_H
  
  #include <string>
  #include <vector>
  #include "kernel/gpu/gpu_kernel.h"
  #include "kernel/gpu/gpu_kernel_factory.h"
  
  namespace mindspore {
  namespace kernel {
  class DatasetIteratorKernel : public GpuKernel {
   public:
    DatasetIteratorKernel();
    ~DatasetIteratorKernel();
  
    const std::vector<size_t> &GetInputSizeList() const override;
    const std::vector<size_t> &GetOutputSizeList() const override;
    const std::vector<size_t> &GetWorkspaceSizeList() const override;
    bool Launch(const std::vector<AddressPtr> &inputs, const std::vector<AddressPtr> &workspace,
                const std::vector<AddressPtr> &outputs, void *stream_ptr) override;
    bool Init(const CNodePtr &kernel_node) override;
  
   protected:
    void InitSizeLists() override;
  
   private:
    std::string queue_name_;
    unsigned int handle_;
    size_t total_bytes_;
  
    std::vector<size_t> input_size_list_;
    std::vector<size_t> output_size_list_;
    std::vector<size_t> workspace_size_list_;
  };
  
  MS_REG_GPU_KERNEL(GetNext, DatasetIteratorKernel)
  }  // namespace kernel
  }  // namespace mindspore
  
  #endif  // MINDSPORE_QUEUE_CPU_KERNEL_H
  