1 /** 2 * Copyright 2020 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_CXXAPI_SHARED_MEMORY_H 18 #define MINDSPORE_CCSRC_CXXAPI_SHARED_MEMORY_H 19 #include <iostream> 20 #include "include/api/status.h" 21 22 namespace mindspore { 23 class SharedMemory { 24 public: 25 Status Create(uint64_t memory_size); 26 Status Attach(); 27 void Detach(); 28 void Destroy(); 29 30 private: 31 friend class MultiProcess; GetSharedMemoryAddr()32 uint8_t *GetSharedMemoryAddr() { return shmat_addr_; } 33 34 int shm_id_ = -1; 35 uint8_t *shmat_addr_ = nullptr; 36 }; 37 } // namespace mindspore 38 #endif // MINDSPORE_CCSRC_CXXAPI_SHARED_MEMORY_H 39