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 enable_shared_from_this.h
18 * @author Przemyslaw Dobrowolski (p.dobrowolsk@samsung.com)
20 * @brief This file is the implementation file of shared pointer RAII
22 #ifndef DPL_ENABLE_SHARED_FROM_THIS_H
23 #define DPL_ENABLE_SHARED_FROM_THIS_H
25 #include <dpl/shared_ptr.h>
26 #include <dpl/noncopyable.h>
27 #include <dpl/assert.h>
30 template<typename Class>
31 class EnableSharedFromThis : private Noncopyable
34 // A weak pointer to shared counter
35 SharedCounter *m_counter;
39 DPL::SharedPtr<Class> SharedFromThis()
41 Assert(m_counter != NULL && "Pointer is not shared!");
42 return SharedPtr<Class>(m_counter, m_ptr);
45 DPL::SharedPtr<const Class> SharedFromThis() const
47 Assert(m_counter != NULL && "Pointer is not shared!");
48 return SharedPtr<Class>(m_counter, m_ptr);
51 // For internal SharedPtr usage only. Do not call directly.
52 void _Internal_AcceptSharedPtr(SharedCounter *counter, Class *ptr)
58 EnableSharedFromThis() :
63 virtual ~EnableSharedFromThis()
68 #endif // DPL_ENABLE_SHARED_FROM_THIS_H