diff options
| author | TSR Berry <20988865+TSRBerry@users.noreply.github.com> | 2023-04-08 01:22:00 +0200 |
|---|---|---|
| committer | Mary <thog@protonmail.com> | 2023-04-27 23:51:14 +0200 |
| commit | cee712105850ac3385cd0091a923438167433f9f (patch) | |
| tree | 4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /Ryujinx.Memory/MemoryManagementWindows.cs | |
| parent | cd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff) | |
Move solution and projects to src
Diffstat (limited to 'Ryujinx.Memory/MemoryManagementWindows.cs')
| -rw-r--r-- | Ryujinx.Memory/MemoryManagementWindows.cs | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/Ryujinx.Memory/MemoryManagementWindows.cs b/Ryujinx.Memory/MemoryManagementWindows.cs deleted file mode 100644 index 2f89a921..00000000 --- a/Ryujinx.Memory/MemoryManagementWindows.cs +++ /dev/null @@ -1,144 +0,0 @@ -using Ryujinx.Memory.WindowsShared; -using System; -using System.Runtime.Versioning; - -namespace Ryujinx.Memory -{ - [SupportedOSPlatform("windows")] - static class MemoryManagementWindows - { - public const int PageSize = 0x1000; - - private static readonly PlaceholderManager _placeholders = new PlaceholderManager(); - - public static IntPtr Allocate(IntPtr size) - { - return AllocateInternal(size, AllocationType.Reserve | AllocationType.Commit); - } - - public static IntPtr Reserve(IntPtr size, bool viewCompatible) - { - if (viewCompatible) - { - IntPtr baseAddress = AllocateInternal2(size, AllocationType.Reserve | AllocationType.ReservePlaceholder); - - _placeholders.ReserveRange((ulong)baseAddress, (ulong)size); - - return baseAddress; - } - - return AllocateInternal(size, AllocationType.Reserve); - } - - private static IntPtr AllocateInternal(IntPtr size, AllocationType flags = 0) - { - IntPtr ptr = WindowsApi.VirtualAlloc(IntPtr.Zero, size, flags, MemoryProtection.ReadWrite); - - if (ptr == IntPtr.Zero) - { - throw new OutOfMemoryException(); - } - - return ptr; - } - - private static IntPtr AllocateInternal2(IntPtr size, AllocationType flags = 0) - { - IntPtr ptr = WindowsApi.VirtualAlloc2(WindowsApi.CurrentProcessHandle, IntPtr.Zero, size, flags, MemoryProtection.NoAccess, IntPtr.Zero, 0); - - if (ptr == IntPtr.Zero) - { - throw new OutOfMemoryException(); - } - - return ptr; - } - - public static bool Commit(IntPtr location, IntPtr size) - { - return WindowsApi.VirtualAlloc(location, size, AllocationType.Commit, MemoryProtection.ReadWrite) != IntPtr.Zero; - } - - public static bool Decommit(IntPtr location, IntPtr size) - { - return WindowsApi.VirtualFree(location, size, AllocationType.Decommit); - } - - public static void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, MemoryBlock owner) - { - _placeholders.MapView(sharedMemory, srcOffset, location, size, owner); - } - - public static void UnmapView(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner) - { - _placeholders.UnmapView(sharedMemory, location, size, owner); - } - - public static bool Reprotect(IntPtr address, IntPtr size, MemoryPermission permission, bool forView) - { - if (forView) - { - return _placeholders.ReprotectView(address, size, permission); - } - else - { - return WindowsApi.VirtualProtect(address, size, WindowsApi.GetProtection(permission), out _); - } - } - - public static bool Free(IntPtr address, IntPtr size) - { - _placeholders.UnreserveRange((ulong)address, (ulong)size); - - return WindowsApi.VirtualFree(address, IntPtr.Zero, AllocationType.Release); - } - - public static IntPtr CreateSharedMemory(IntPtr size, bool reserve) - { - var prot = reserve ? FileMapProtection.SectionReserve : FileMapProtection.SectionCommit; - - IntPtr handle = WindowsApi.CreateFileMapping( - WindowsApi.InvalidHandleValue, - IntPtr.Zero, - FileMapProtection.PageReadWrite | prot, - (uint)(size.ToInt64() >> 32), - (uint)size.ToInt64(), - null); - - if (handle == IntPtr.Zero) - { - throw new OutOfMemoryException(); - } - - return handle; - } - - public static void DestroySharedMemory(IntPtr handle) - { - if (!WindowsApi.CloseHandle(handle)) - { - throw new ArgumentException("Invalid handle.", nameof(handle)); - } - } - - public static IntPtr MapSharedMemory(IntPtr handle) - { - IntPtr ptr = WindowsApi.MapViewOfFile(handle, 4 | 2, 0, 0, IntPtr.Zero); - - if (ptr == IntPtr.Zero) - { - throw new OutOfMemoryException(); - } - - return ptr; - } - - public static void UnmapSharedMemory(IntPtr address) - { - if (!WindowsApi.UnmapViewOfFile(address)) - { - throw new ArgumentException("Invalid address.", nameof(address)); - } - } - } -}
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