2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 * @file singleton_safe_impl.h
18 * @author Tomasz Swierczek (t.swierczek@samsung.com)
20 * @brief This file is the implementation file of singleton
22 #ifndef DPL_SINGLETON_SAFE_IMPL_H
23 #define DPL_SINGLETON_SAFE_IMPL_H
25 #define IMPLEMENT_SAFE_SINGLETON(Class) \
28 Singleton<Class>& Singleton<Class>::InternalInstance() \
30 static Singleton<Class> instance; \
35 Class &Singleton<Class>::Instance() \
37 Singleton<Class>& instance = Singleton<Class>::InternalInstance(); \
38 if (!!instance.m_guard) \
40 Assert(Thread::GetCurrentThread() == *instance.m_guard && \
41 "Singleton thread guard failed. A forbidden call from foreign thread was detected!");\
47 void Singleton<Class>::SetThreadGuard(Thread *thread) \
49 Singleton<Class>& instance = Singleton<Class>::InternalInstance(); \
50 instance.m_guard = OptionalThreadPtr(thread); \
54 void Singleton<Class>::ResetThreadGuard() \
56 Singleton<Class>& instance = Singleton<Class>::InternalInstance(); \
57 instance.m_guard = OptionalThreadPtr::Null; \
59 template Singleton<Class>& Singleton<Class>::InternalInstance(); \
60 template Class& Singleton<Class>::Instance(); \
61 template void Singleton<Class>::SetThreadGuard(Thread *thread); \
62 template void Singleton<Class>::ResetThreadGuard(); \
66 #endif // DPL_SINGLETON_SAFE_IMPL_H