JinxRyu/ARMeilleure/Signal/UnixSignalHandlerRegistration.cs
Isaac Marovitz 0fbcd630bc
Replace DllImport usage with LibraryImport (#4084)
* Replace usage of `DllImport` with `LibraryImport`

* Mark methods as `partial`

* Marshalling

* More `partial` & marshalling

* More `partial` and marshalling

* More partial and marshalling

* Update GdiPlusHelper to LibraryImport

* Unicorn

* More Partial

* Marshal

* Specify EntryPoint

* Specify EntryPoint

* Change GlobalMemoryStatusEx to LibraryImport

* Change RegisterClassEx to LibraryImport

* Define EntryPoints

* Update Ryujinx.Ava/Ui/Controls/Win32NativeInterop.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFmpegApi.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Move return mashal

* Remove calling convention specification

* Remove calling conventions

* Update Ryujinx.Common/SystemInfo/WindowsSystemInfo.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update Ryujinx/Modules/Updater/Updater.cs

Co-authored-by: Mary-nyan <thog@protonmail.com>

* Update Ryujinx.Ava/Modules/Updater/Updater.cs

Co-authored-by: Mary-nyan <thog@protonmail.com>

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>
Co-authored-by: Mary-nyan <thog@protonmail.com>
2022-12-15 18:07:31 +01:00

68 lines
2 KiB
C#

using System;
using System.Runtime.InteropServices;
namespace ARMeilleure.Signal
{
[StructLayout(LayoutKind.Sequential, Pack = 1)]
unsafe struct SigSet
{
fixed long sa_mask[16];
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct SigAction
{
public IntPtr sa_handler;
public SigSet sa_mask;
public int sa_flags;
public IntPtr sa_restorer;
}
static partial class UnixSignalHandlerRegistration
{
private const int SIGSEGV = 11;
private const int SIGBUS = 10;
private const int SA_SIGINFO = 0x00000004;
[LibraryImport("libc", SetLastError = true)]
private static partial int sigaction(int signum, ref SigAction sigAction, out SigAction oldAction);
[LibraryImport("libc", SetLastError = true)]
private static partial int sigemptyset(ref SigSet set);
public static SigAction RegisterExceptionHandler(IntPtr action)
{
SigAction sig = new SigAction
{
sa_handler = action,
sa_flags = SA_SIGINFO
};
sigemptyset(ref sig.sa_mask);
int result = sigaction(SIGSEGV, ref sig, out SigAction old);
if (result != 0)
{
throw new InvalidOperationException($"Could not register SIGSEGV sigaction. Error: {result}");
}
if (OperatingSystem.IsMacOS())
{
result = sigaction(SIGBUS, ref sig, out SigAction oldb);
if (result != 0)
{
throw new InvalidOperationException($"Could not register SIGBUS sigaction. Error: {result}");
}
}
return old;
}
public static bool RestoreExceptionHandler(SigAction oldAction)
{
return sigaction(SIGSEGV, ref oldAction, out SigAction _) == 0 && (!OperatingSystem.IsMacOS() || sigaction(SIGBUS, ref oldAction, out SigAction _) == 0);
}
}
}