Move solution and projects to src

src/ARMeilleure/Signal/WindowsSignalHandlerRegistration.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace ARMeilleure.Signal
+{
+    unsafe partial class WindowsSignalHandlerRegistration
+    {
+        [LibraryImport("kernel32.dll")]
+        private static partial IntPtr AddVectoredExceptionHandler(uint first, IntPtr handler);
+
+        [LibraryImport("kernel32.dll")]
+        private static partial ulong RemoveVectoredExceptionHandler(IntPtr handle);
+
+        [LibraryImport("kernel32.dll", SetLastError = true, EntryPoint = "LoadLibraryA")]
+        private static partial IntPtr LoadLibrary([MarshalAs(UnmanagedType.LPStr)] string lpFileName);
+
+        [LibraryImport("kernel32.dll", SetLastError = true)]
+        private static partial IntPtr GetProcAddress(IntPtr hModule, [MarshalAs(UnmanagedType.LPStr)] string procName);
+
+        private static IntPtr _getCurrentThreadIdPtr;
+
+        public static IntPtr RegisterExceptionHandler(IntPtr action)
+        {
+            return AddVectoredExceptionHandler(1, action);
+        }
+
+        public static bool RemoveExceptionHandler(IntPtr handle)
+        {
+            return RemoveVectoredExceptionHandler(handle) != 0;
+        }
+
+        public static IntPtr GetCurrentThreadIdFunc()
+        {
+            if (_getCurrentThreadIdPtr == IntPtr.Zero)
+            {
+                IntPtr handle = LoadLibrary("kernel32.dll");
+
+                _getCurrentThreadIdPtr = GetProcAddress(handle, "GetCurrentThreadId");
+            }
+
+            return _getCurrentThreadIdPtr;
+        }
+    }
+}