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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
using Ryujinx.Common;
using Ryujinx.HLE.HOS.Ipc;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.Utilities;
using System;
using System.Collections.Generic;
using static Ryujinx.HLE.HOS.ErrorCode;
namespace Ryujinx.HLE.HOS.Services.Friend
{
class INotificationService : IpcService, IDisposable
{
private readonly UInt128 _userId;
private readonly FriendServicePermissionLevel _permissionLevel;
private readonly object _lock = new object();
private KEvent _notificationEvent;
private int _notificationEventHandle = 0;
private LinkedList<NotificationInfo> _notifications;
private bool _hasNewFriendRequest;
private bool _hasFriendListUpdate;
private Dictionary<int, ServiceProcessRequest> _commands;
public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => _commands;
public INotificationService(ServiceCtx context, UInt128 userId, FriendServicePermissionLevel permissionLevel)
{
_commands = new Dictionary<int, ServiceProcessRequest>
{
{ 0, GetEvent }, // 2.0.0+
{ 1, Clear }, // 2.0.0+
{ 2, Pop }, // 2.0.0+
};
_userId = userId;
_permissionLevel = permissionLevel;
_notifications = new LinkedList<NotificationInfo>();
_notificationEvent = new KEvent(context.Device.System);
_hasNewFriendRequest = false;
_hasFriendListUpdate = false;
NotificationEventHandler.Instance.RegisterNotificationService(this);
}
// nn::friends::detail::ipc::INotificationService::GetEvent() -> handle<copy>
public long GetEvent(ServiceCtx context)
{
if (_notificationEventHandle == 0)
{
if (context.Process.HandleTable.GenerateHandle(_notificationEvent.ReadableEvent, out _notificationEventHandle) != KernelResult.Success)
{
throw new InvalidOperationException("Out of handles!");
}
}
context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_notificationEventHandle);
return 0;
}
// nn::friends::detail::ipc::INotificationService::Clear()
public long Clear(ServiceCtx context)
{
lock (_lock)
{
_hasNewFriendRequest = false;
_hasFriendListUpdate = false;
_notifications.Clear();
}
return 0;
}
// nn::friends::detail::ipc::INotificationService::Pop() -> nn::friends::detail::ipc::SizedNotificationInfo
public long Pop(ServiceCtx context)
{
lock (_lock)
{
if (_notifications.Count >= 1)
{
NotificationInfo notificationInfo = _notifications.First.Value;
_notifications.RemoveFirst();
if (notificationInfo.Type == NotificationEventType.FriendListUpdate)
{
_hasFriendListUpdate = false;
}
else if (notificationInfo.Type == NotificationEventType.NewFriendRequest)
{
_hasNewFriendRequest = false;
}
context.ResponseData.WriteStruct(notificationInfo);
return 0;
}
}
return MakeError(ErrorModule.Friends, FriendError.NotificationQueueEmpty);
}
public void SignalFriendListUpdate(UInt128 targetId)
{
lock (_lock)
{
if (_userId == targetId)
{
if (!_hasFriendListUpdate)
{
NotificationInfo friendListNotification = new NotificationInfo();
if (_notifications.Count != 0)
{
friendListNotification = _notifications.First.Value;
_notifications.RemoveFirst();
}
friendListNotification.Type = NotificationEventType.FriendListUpdate;
_hasFriendListUpdate = true;
if (_hasNewFriendRequest)
{
NotificationInfo newFriendRequestNotification = new NotificationInfo();
if (_notifications.Count != 0)
{
newFriendRequestNotification = _notifications.First.Value;
_notifications.RemoveFirst();
}
newFriendRequestNotification.Type = NotificationEventType.NewFriendRequest;
_notifications.AddFirst(newFriendRequestNotification);
}
// We defer this to make sure we are on top of the queue.
_notifications.AddFirst(friendListNotification);
}
_notificationEvent.ReadableEvent.Signal();
}
}
}
public void SignalNewFriendRequest(UInt128 targetId)
{
lock (_lock)
{
if ((_permissionLevel & FriendServicePermissionLevel.OverlayMask) != 0 && _userId == targetId)
{
if (!_hasNewFriendRequest)
{
if (_notifications.Count == 100)
{
SignalFriendListUpdate(targetId);
}
NotificationInfo newFriendRequestNotification = new NotificationInfo
{
Type = NotificationEventType.NewFriendRequest
};
_notifications.AddLast(newFriendRequestNotification);
_hasNewFriendRequest = true;
}
_notificationEvent.ReadableEvent.Signal();
}
}
}
public void Dispose()
{
NotificationEventHandler.Instance.UnregisterNotificationService(this);
}
}
}
|
