Files
rongkunshi e194478010 stable-fix
Signed-off-by: rongkunshi <shirongkun@huawei.com>
2022-03-13 20:20:51 +08:00

45 lines
1.6 KiB
C++

/*
* Copyright (c) 2022 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SINGLE_INSTANCE_H
#define SINGLE_INSTANCE_H
namespace OHOS {
namespace RME {
#define DECLARE_SINGLE_INSTANCE_BASE(className) \
public: \
static className& GetInstance(); \
private: \
className(const className&) = delete; \
className& operator=(const className &) = delete; \
className(className&&) = delete; \
className& operator=(className&&) = delete; \
#define DECLARE_SINGLE_INSTANCE(className) \
DECLARE_SINGLE_INSTANCE_BASE(className) \
private: \
className() = default; \
~className() = default; \
#define IMPLEMENT_SINGLE_INSTANCE(className) \
className& className::GetInstance() \
{ \
static auto instance = new className(); \
return *instance; \
}
} // namespace RME
} // namespace OHOS
#endif // SINGLE_INSTANCE_H