Imported Upstream version 5.10.0.47

Former-commit-id: d0813289fa2d35e1f8ed77530acb4fb1df441bc0

mcs/class/corlib/System.Runtime.InteropServices.RuntimeInformation/RuntimeInformation.cs

@@ -0,0 +1,84 @@
+//
+// RuntimeInformation.cs
+//
+// Author:
+//   Alexander Köplinger (alexander.koeplinger@xamarin.com)
+//
+// (C) 2016 Xamarin, Inc.
+//
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System.IO;
+using System.Reflection;
+
+namespace System.Runtime.InteropServices
+{
+	public static class RuntimeInformation
+	{
+		public static string FrameworkDescription {
+			get {
+				return "Mono " + Mono.Runtime.GetDisplayName ();
+			}
+		}
+
+		public static bool IsOSPlatform (OSPlatform osPlatform)
+		{
+			switch (Environment.Platform) {
+			case PlatformID.Win32NT:
+				return osPlatform == OSPlatform.Windows;
+			case PlatformID.MacOSX:
+				return osPlatform == OSPlatform.OSX;
+			case PlatformID.Unix:
+				return osPlatform == OSPlatform.Linux;
+			default:
+				return false;
+			}
+		}
+
+		public static string OSDescription
+		{
+			get
+			{
+				return Environment.OSVersion.VersionString;
+			}
+		}
+
+		public static Architecture OSArchitecture
+		{
+			get
+			{
+				// TODO: very barebones implementation, doesn't respect ARM
+				return Environment.Is64BitOperatingSystem ? Architecture.X64 : Architecture.X86;
+			}
+		}
+
+		public static Architecture ProcessArchitecture
+		{
+			get
+			{
+				// TODO: very barebones implementation, doesn't respect ARM			
+				return Environment.Is64BitProcess ? Architecture.X64 : Architecture.X86;
+			}
+		}
+	}
+}