src/Ryujinx.HLE/HOS/UserChannelPersistence.cs


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

using Ryujinx.HLE.HOS.Services.Am.AppletOE.ApplicationProxyService.ApplicationProxy.Types;
using System;
using System.Collections.Generic;

namespace Ryujinx.HLE.HOS
{
    public class UserChannelPersistence
    {
        private readonly Stack<byte[]> _userChannelStorages;
        public int PreviousIndex { get; private set; }
        public int Index { get; private set; }
        public ProgramSpecifyKind Kind { get; private set; }
        public bool ShouldRestart { get; set; }

        public UserChannelPersistence()
        {
            _userChannelStorages = new Stack<byte[]>();
            Kind = ProgramSpecifyKind.ExecuteProgram;
            PreviousIndex = -1;
            Index = 0;
        }

        public void Clear()
        {
            _userChannelStorages.Clear();
        }

        public void Push(byte[] data)
        {
            _userChannelStorages.Push(data);
        }

        public byte[] Pop()
        {
            _userChannelStorages.TryPop(out byte[] result);

            return result;
        }

        public bool IsEmpty => _userChannelStorages.Count == 0;

        public void ExecuteProgram(ProgramSpecifyKind kind, ulong value)
        {
            Kind = kind;
            PreviousIndex = Index;
            ShouldRestart = true;

            switch (kind)
            {
                case ProgramSpecifyKind.ExecuteProgram:
                    Index = (int)value;
                    break;
                case ProgramSpecifyKind.RestartProgram:
                    break;
                default:
                    throw new NotImplementedException($"{kind} not implemented");
            }
        }
    }
}