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source: code/branches/invaders/src/libraries/core/object/Destroyable.cc @ 10031

Last change on this file since 10031 was 9570, checked in by landauf, 12 years ago

moved functions and attributes needed to safely destroy objects from OrxonoxClass to Destroyable

  • Property svn:eol-style set to native
File size: 2.2 KB
Line 
1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Fabian 'x3n' Landau
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29/**
30    @file
31    @brief Implementation of Destroyable.
32*/
33
34#include "Destroyable.h"
35
36#include <cassert>
37
38namespace orxonox
39{
40    /**
41        @brief Constructor: Sets the default values.
42    */
43    Destroyable::Destroyable()
44    {
45        this->referenceCount_ = 0;
46        this->requestedDestruction_ = false;
47    }
48
49    /**
50        @brief Destructor: Notifies all DestructionListener (for example @ref WeakPtr "weak pointers") that this object is being deleted.
51    */
52    Destroyable::~Destroyable()
53    {
54        assert(this->referenceCount_ <= 0);
55
56        // notify all destruction listeners
57        for (std::set<DestructionListener*>::iterator it = this->destructionListeners_.begin(); it != this->destructionListeners_.end(); )
58            (*(it++))->objectDeleted();
59    }
60
61    /**
62        @brief Deletes the object if no @ref orxonox::SmartPtr "smart pointers" point to this object. Otherwise schedules the object to be deleted as soon as possible.
63    */
64    void Destroyable::destroy()
65    {
66        assert(this); // Just in case someone tries to delete a NULL pointer
67        this->requestedDestruction_ = true;
68        if (this->referenceCount_ == 0)
69        {
70            this->preDestroy();
71            if (this->referenceCount_ == 0)
72                delete this;
73        }
74    }
75}
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