1 /** 2 * Copyright 2021 Huawei Technologies Co., Ltd 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef MINDSPORE_CCSRC_MINDDATA_DATASET_CORE_DEVICE_RESOURCE_H_ 18 #define MINDSPORE_CCSRC_MINDDATA_DATASET_CORE_DEVICE_RESOURCE_H_ 19 20 #include <memory> 21 #include "include/api/context.h" 22 #include "include/api/status.h" 23 #include "include/api/types.h" 24 #include "minddata/dataset/core/device_tensor.h" 25 #include "minddata/dataset/core/tensor.h" 26 27 namespace mindspore { 28 namespace dataset { 29 30 class DeviceResource { 31 public: 32 DeviceResource() = default; 33 34 virtual ~DeviceResource() = default; 35 36 virtual Status InitResource(uint32_t device_id); 37 38 virtual Status FinalizeResource(); 39 40 virtual Status Sink(const mindspore::MSTensor &host_input, std::shared_ptr<DeviceTensor> *device_input); 41 42 virtual Status Pop(const std::shared_ptr<DeviceTensor> &device_output, std::shared_ptr<Tensor> *host_output); 43 44 virtual std::shared_ptr<void> GetInstance(); 45 46 virtual Status DeviceDataRelease(); 47 48 virtual void *GetContext(); 49 50 virtual void *GetStream(); 51 }; 52 53 } // namespace dataset 54 } // namespace mindspore 55 #endif // MINDSPORE_DEVICE_RESOURCE_H 56