blob: 335221223dcec747ccfd68b9b554b25173dae5d0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __FREESTYLE_BASE_OBJECT_H__
#define __FREESTYLE_BASE_OBJECT_H__
/** \file
* \ingroup freestyle
* \brief Base Class for most shared objects (Node, Rep). Defines the addRef, release system.
* \brief Inspired by COM IUnknown system.
*/
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
namespace Freestyle {
class BaseObject {
public:
inline BaseObject()
{
_ref_counter = 0;
}
virtual ~BaseObject()
{
}
/*! At least makes a release on this.
* The BaseObject::destroy method must be explicitly called at the end of any overloaded destroy
*/
virtual int destroy()
{
return release();
}
/*! Increments the reference counter */
inline int addRef()
{
return ++_ref_counter;
}
/*! Decrements the reference counter */
inline int release()
{
if (_ref_counter) {
_ref_counter--;
}
return _ref_counter;
}
private:
unsigned _ref_counter;
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:BaseObject")
#endif
};
} /* namespace Freestyle */
#endif // __FREESTYLE_BASE_OBJECT_H__
|