aboutsummaryrefslogtreecommitdiff
path: root/Ryujinx.Memory/MemoryManagement.cs
blob: 2525bef72df58803688d59110ab3a59f88a6936a (plain)
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
using System;
using System.Runtime.InteropServices;

namespace Ryujinx.Memory
{
    public static class MemoryManagement
    {
        public static IntPtr Allocate(ulong size)
        {
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                IntPtr sizeNint = new IntPtr((long)size);

                return MemoryManagementWindows.Allocate(sizeNint);
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
                     RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                return MemoryManagementUnix.Allocate(size);
            }
            else
            {
                throw new PlatformNotSupportedException();
            }
        }

        public static IntPtr Reserve(ulong size)
        {
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                IntPtr sizeNint = new IntPtr((long)size);

                return MemoryManagementWindows.Reserve(sizeNint);
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
                     RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                return MemoryManagementUnix.Reserve(size);
            }
            else
            {
                throw new PlatformNotSupportedException();
            }
        }

        public static bool Commit(IntPtr address, ulong size)
        {
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                IntPtr sizeNint = new IntPtr((long)size);

                return MemoryManagementWindows.Commit(address, sizeNint);
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
                     RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                return MemoryManagementUnix.Commit(address, size);
            }
            else
            {
                throw new PlatformNotSupportedException();
            }
        }

        public static void Reprotect(IntPtr address, ulong size, MemoryPermission permission)
        {
            bool result;

            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                IntPtr sizeNint = new IntPtr((long)size);

                result = MemoryManagementWindows.Reprotect(address, sizeNint, permission);
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
                     RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                result = MemoryManagementUnix.Reprotect(address, size, permission);
            }
            else
            {
                throw new PlatformNotSupportedException();
            }

            if (!result)
            {
                throw new MemoryProtectionException(permission);
            }
        }

        public static bool Free(IntPtr address)
        {
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                return MemoryManagementWindows.Free(address);
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
                     RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                return MemoryManagementUnix.Free(address);
            }
            else
            {
                throw new PlatformNotSupportedException();
            }
        }
    }
}