TSRBerry 35d91a0e58
Linux: Automatically increase vm.max_map_count if it's too low (#4702)
* memory: Check results of pinvoke calls

* Increase vm.max_map_count when running Ryujinx

* Add SupportedOSPlatform attribute for WindowsApiException

* Revert increasing vm.max_map_count via script

* Add LinuxHelper to detect and increase vm.max_map_count

With GUI dialogs, this should be a bit more user-friendly.

* Supply arguments as a list to RunPkExec

* Add error logging in case RunPkExec() fails

* Prevent Gtk from crashing
2023-05-30 01:48:37 +02:00

103 lines
4.0 KiB
C#

using System;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
namespace Ryujinx.Memory.WindowsShared
{
[SupportedOSPlatform("windows")]
static partial class WindowsApi
{
public static readonly IntPtr InvalidHandleValue = new IntPtr(-1);
public static readonly IntPtr CurrentProcessHandle = new IntPtr(-1);
[LibraryImport("kernel32.dll", SetLastError = true)]
public static partial IntPtr VirtualAlloc(
IntPtr lpAddress,
IntPtr dwSize,
AllocationType flAllocationType,
MemoryProtection flProtect);
[LibraryImport("KernelBase.dll", SetLastError = true)]
public static partial IntPtr VirtualAlloc2(
IntPtr process,
IntPtr lpAddress,
IntPtr dwSize,
AllocationType flAllocationType,
MemoryProtection flProtect,
IntPtr extendedParameters,
ulong parameterCount);
[LibraryImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static partial bool VirtualProtect(
IntPtr lpAddress,
IntPtr dwSize,
MemoryProtection flNewProtect,
out MemoryProtection lpflOldProtect);
[LibraryImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static partial bool VirtualFree(IntPtr lpAddress, IntPtr dwSize, AllocationType dwFreeType);
[LibraryImport("kernel32.dll", SetLastError = true, EntryPoint = "CreateFileMappingW")]
public static partial IntPtr CreateFileMapping(
IntPtr hFile,
IntPtr lpFileMappingAttributes,
FileMapProtection flProtect,
uint dwMaximumSizeHigh,
uint dwMaximumSizeLow,
[MarshalAs(UnmanagedType.LPWStr)] string lpName);
[LibraryImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static partial bool CloseHandle(IntPtr hObject);
[LibraryImport("kernel32.dll", SetLastError = true)]
public static partial IntPtr MapViewOfFile(
IntPtr hFileMappingObject,
uint dwDesiredAccess,
uint dwFileOffsetHigh,
uint dwFileOffsetLow,
IntPtr dwNumberOfBytesToMap);
[LibraryImport("KernelBase.dll", SetLastError = true)]
public static partial IntPtr MapViewOfFile3(
IntPtr hFileMappingObject,
IntPtr process,
IntPtr baseAddress,
ulong offset,
IntPtr dwNumberOfBytesToMap,
ulong allocationType,
MemoryProtection dwDesiredAccess,
IntPtr extendedParameters,
ulong parameterCount);
[LibraryImport("kernel32.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static partial bool UnmapViewOfFile(IntPtr lpBaseAddress);
[LibraryImport("KernelBase.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static partial bool UnmapViewOfFile2(IntPtr process, IntPtr lpBaseAddress, ulong unmapFlags);
[LibraryImport("kernel32.dll")]
public static partial uint GetLastError();
[LibraryImport("kernel32.dll")]
public static partial int GetCurrentThreadId();
public static MemoryProtection GetProtection(MemoryPermission permission)
{
return permission switch
{
MemoryPermission.None => MemoryProtection.NoAccess,
MemoryPermission.Read => MemoryProtection.ReadOnly,
MemoryPermission.ReadAndWrite => MemoryProtection.ReadWrite,
MemoryPermission.ReadAndExecute => MemoryProtection.ExecuteRead,
MemoryPermission.ReadWriteExecute => MemoryProtection.ExecuteReadWrite,
MemoryPermission.Execute => MemoryProtection.Execute,
_ => throw new MemoryProtectionException(permission)
};
}
}
}