1 /** 2 * Copyright 2019 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 #include "backend/session/session_factory.h" 17 #include <memory> 18 #include <string> 19 20 namespace mindspore { 21 namespace session { Get()22SessionFactory &SessionFactory::Get() { 23 static SessionFactory instance{}; 24 return instance; 25 } 26 Register(const std::string & device_name,SessionCreator && session_creator)27void SessionFactory::Register(const std::string &device_name, SessionCreator &&session_creator) { 28 if (session_creators_.end() == session_creators_.find(device_name)) { 29 (void)session_creators_.emplace(device_name, session_creator); 30 } 31 } 32 Create(const std::string & device_name)33std::shared_ptr<SessionBasic> SessionFactory::Create(const std::string &device_name) { 34 auto iter = session_creators_.find(device_name); 35 if (session_creators_.end() != iter) { 36 MS_EXCEPTION_IF_NULL(iter->second); 37 return (iter->second)(); 38 } 39 return nullptr; 40 } 41 } // namespace session 42 } // namespace mindspore 43