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.
18 * @author Przemyslaw Dobrowolski (p.dobrowolsk@samsung.com)
20 * @brief This file is the implementation file of singleton
22 #ifndef DPL_SINGLETON_H
23 #define DPL_SINGLETON_H
25 #include <dpl/optional.h>
26 #include <dpl/thread.h>
27 #include <dpl/assert.h>
31 template<typename Class>
38 // To remove posibility of instantiating directly Class,
39 // make Class' default constructor protected
47 typedef Optional<Thread *> OptionalThreadPtr;
48 OptionalThreadPtr m_guard;
50 static Singleton &InternalInstance();
57 static Class &Instance();
60 static void SetThreadGuard(Thread *thread);
61 static void ResetThreadGuard();
66 #endif // DPL_SINGLETON_H