forked from huawei/mindspore2022
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
/**
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* Copyright 2019 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MINDSPORE_CCSRC_SESSION_SESSION_FACTORY_H_
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#define MINDSPORE_CCSRC_SESSION_SESSION_FACTORY_H_
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#include <functional>
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#include <map>
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#include <memory>
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#include <string>
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#include <utility>
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#include "common/utils.h"
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#include "session/session_basic.h"
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namespace mindspore {
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namespace session {
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using SessionCreator = std::function<std::shared_ptr<SessionBasic>()>;
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class SessionFactory {
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public:
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static SessionFactory &Get();
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void Register(const std::string &device_name, SessionCreator &&session_creator);
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std::shared_ptr<SessionBasic> Create(const std::string &device_name);
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private:
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SessionFactory() = default;
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~SessionFactory() = default;
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DISABLE_COPY_AND_ASSIGN(SessionFactory)
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std::map<std::string, SessionCreator> session_creators_;
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};
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class SessionRegistrar {
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public:
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SessionRegistrar(const std::string &device_name, SessionCreator &&session_creator) {
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SessionFactory::Get().Register(device_name, std::move(session_creator));
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}
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~SessionRegistrar() = default;
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};
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#define MS_REG_SESSION(DEVICE_NAME, SESSION_CLASS) \
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static const SessionRegistrar g_session_registrar__##DEVICE_NAME##_##_reg( \
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DEVICE_NAME, []() { return std::make_shared<SESSION_CLASS>(); });
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} // namespace session
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} // namespace mindspore
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#endif // MINDSPORE_CCSRC_SESSION_SESSION_FACTORY_H_
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