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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Threading;
namespace Ryujinx.HLE.HOS.Services.Nv.NvHostCtrl
{
class NvHostSyncpt
{
public const int SyncptsCount = 192;
private int[] _counterMin;
private int[] _counterMax;
private long _eventMask;
private ConcurrentDictionary<EventWaitHandle, int> _waiters;
public NvHostSyncpt()
{
_counterMin = new int[SyncptsCount];
_counterMax = new int[SyncptsCount];
_waiters = new ConcurrentDictionary<EventWaitHandle, int>();
}
public int GetMin(int id)
{
return _counterMin[id];
}
public int GetMax(int id)
{
return _counterMax[id];
}
public int Increment(int id)
{
if (((_eventMask >> id) & 1) != 0)
{
Interlocked.Increment(ref _counterMax[id]);
}
return IncrementMin(id);
}
public int IncrementMin(int id)
{
int value = Interlocked.Increment(ref _counterMin[id]);
WakeUpWaiters(id, value);
return value;
}
public int IncrementMax(int id)
{
return Interlocked.Increment(ref _counterMax[id]);
}
public void AddWaiter(int threshold, EventWaitHandle waitEvent)
{
if (!_waiters.TryAdd(waitEvent, threshold))
{
throw new InvalidOperationException();
}
}
public bool RemoveWaiter(EventWaitHandle waitEvent)
{
return _waiters.TryRemove(waitEvent, out _);
}
private void WakeUpWaiters(int id, int newValue)
{
foreach (KeyValuePair<EventWaitHandle, int> kv in _waiters)
{
if (MinCompare(id, newValue, _counterMax[id], kv.Value))
{
kv.Key.Set();
_waiters.TryRemove(kv.Key, out _);
}
}
}
public bool MinCompare(int id, int threshold)
{
return MinCompare(id, _counterMin[id], _counterMax[id], threshold);
}
private bool MinCompare(int id, int min, int max, int threshold)
{
int minDiff = min - threshold;
int maxDiff = max - threshold;
if (((_eventMask >> id) & 1) != 0)
{
return minDiff >= 0;
}
else
{
return (uint)maxDiff >= (uint)minDiff;
}
}
}
}
|
