1/**
2 * Copyright (c) 2006-2023 LOVE Development Team
3 *
4 * This software is provided 'as-is', without any express or implied
5 * warranty. In no event will the authors be held liable for any damages
6 * arising from the use of this software.
7 *
8 * Permission is granted to anyone to use this software for any purpose,
9 * including commercial applications, and to alter it and redistribute it
10 * freely, subject to the following restrictions:
11 *
12 * 1. The origin of this software must not be misrepresented; you must not
13 * claim that you wrote the original software. If you use this software
14 * in a product, an acknowledgment in the product documentation would be
15 * appreciated but is not required.
16 * 2. Altered source versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software.
18 * 3. This notice may not be removed or altered from any source distribution.
19 **/
20
21// LOVE
22#include "Object.h"
23
24namespace love
25{
26
27love::Type Object::type("Object", nullptr);
28
29Object::Object()
30 : count(1)
31{
32}
33
34Object::Object(const Object & /*other*/)
35 : count(1) // Always start with a reference count of 1.
36{
37}
38
39Object::~Object()
40{
41}
42
43int Object::getReferenceCount() const
44{
45 return count;
46}
47
48void Object::retain()
49{
50 count.fetch_add(1, std::memory_order_relaxed);
51}
52
53void Object::release()
54{
55 // http://www.boost.org/doc/libs/1_56_0/doc/html/atomic/usage_examples.html
56 if (count.fetch_sub(1, std::memory_order_release) == 1)
57 {
58 std::atomic_thread_fence(std::memory_order_acquire);
59 delete this;
60 }
61}
62
63} // love
64