blob: 0b6ce3771acfd591537b6bce6d4059195d6cc5dd (
plain) (
blame)
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
|
using System;
using System.Threading;
namespace Ryujinx.Common
{
public class ObjectPool<T>
where T : class
{
private T _firstItem;
private readonly T[] _items;
private readonly Func<T> _factory;
public ObjectPool(Func<T> factory, int size)
{
_items = new T[size - 1];
_factory = factory;
}
public T Allocate()
{
T instance = _firstItem;
if (instance == null || instance != Interlocked.CompareExchange(ref _firstItem, null, instance))
{
instance = AllocateInternal();
}
return instance;
}
private T AllocateInternal()
{
T[] items = _items;
for (int i = 0; i < items.Length; i++)
{
T instance = items[i];
if (instance != null && instance == Interlocked.CompareExchange(ref items[i], null, instance))
{
return instance;
}
}
return _factory();
}
public void Release(T obj)
{
if (_firstItem == null)
{
_firstItem = obj;
}
else
{
ReleaseInternal(obj);
}
}
private void ReleaseInternal(T obj)
{
T[] items = _items;
for (int i = 0; i < items.Length; i++)
{
if (items[i] == null)
{
items[i] = obj;
break;
}
}
}
}
}
|
