mirror of
https://github.com/openharmony/ace_ace_engine.git
synced 2026-07-21 18:05:24 -04:00
mamingshuai
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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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 FOUNDATION_ACE_FRAMEWORKS_BASE_UTILS_SINGLETON_H
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#define FOUNDATION_ACE_FRAMEWORKS_BASE_UTILS_SINGLETON_H
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#include "base/utils/noncopyable.h"
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namespace OHOS::Ace {
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#define DECLARE_SINGLETON(MyClass) \
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private: \
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friend Singleton<MyClass>; \
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MyClass& operator=(const MyClass&) = delete; \
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MyClass(const MyClass&) = delete; \
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MyClass(); \
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~MyClass();
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template<typename T>
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class Singleton : public NonCopyable {
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public:
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static T& GetInstance()
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{
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return instance_;
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}
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private:
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static T instance_;
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};
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template<typename T>
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T Singleton<T>::instance_;
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} // namespace OHOS::Ace
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#endif // FOUNDATION_ACE_FRAMEWORKS_BASE_UTILS_SINGLETON_H
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