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 scoped_gpointer.h
18 * @author Piotr Marcinkiewicz (p.marcinkiew@samsung.com)
20 * @brief This file is the implementation file of scoped_gpointer
23 #ifndef DPL_SCOPED_GPOINTER_H
24 #define DPL_SCOPED_GPOINTER_H
27 #include <glib-object.h>
28 #include <dpl/scoped_resource.h>
29 #include <dpl/assert.h>
34 struct ScopedGPointerPolicy
36 typedef gpointer Type;
37 static Type NullValue()
41 static void Destroy(Type pointer)
43 if (pointer != NULL) {
44 g_object_unref(pointer);
49 template <typename Class>
50 class ScopedGPointer : public DPL::ScopedResource<ScopedGPointerPolicy>
52 typedef ScopedGPointerPolicy Policy;
53 typedef DPL::ScopedResource<Policy> BaseType;
56 explicit ScopedGPointer(typename Policy::Type pointer =
57 Policy::NullValue()) :
62 Class *operator->() const throw()
64 Assert(this->m_value != Policy::NullValue() &&
65 "Dereference of scoped NULL pointer!");
66 return static_cast<Class *>(this->m_value);
69 Class & operator *() const throw()
71 Assert(this->m_value != Policy::NullValue() &&
72 "Dereference of scoped NULL pointer!");
73 return *static_cast<Class *>(this->m_value);
79 #endif // DPL_SCOPED_GPOINTER_H