| #region Copyright notice and license |
| |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #endregion |
| |
| using System; |
| using System.Collections.Concurrent; |
| using System.Diagnostics; |
| using System.IO; |
| using System.Reflection; |
| using System.Runtime.InteropServices; |
| using System.Threading; |
| using Grpc.Core.Utils; |
| |
| namespace Grpc.Core.Internal |
| { |
| /// <summary> |
| /// Utility methods for detecting platform and architecture. |
| /// </summary> |
| internal static class PlatformApis |
| { |
| const string UnityEngineApplicationClassName = "UnityEngine.Application, UnityEngine"; |
| const string XamarinAndroidObjectClassName = "Java.Lang.Object, Mono.Android"; |
| const string XamarinIOSObjectClassName = "Foundation.NSObject, Xamarin.iOS"; |
| |
| static readonly bool isLinux; |
| static readonly bool isMacOSX; |
| static readonly bool isWindows; |
| static readonly bool isMono; |
| static readonly bool isNetCore; |
| static readonly bool isUnity; |
| static readonly bool isXamarin; |
| static readonly bool isXamarinIOS; |
| static readonly bool isXamarinAndroid; |
| |
| static PlatformApis() |
| { |
| #if NETSTANDARD1_5 |
| isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.Linux); |
| isMacOSX = RuntimeInformation.IsOSPlatform(OSPlatform.OSX); |
| isWindows = RuntimeInformation.IsOSPlatform(OSPlatform.Windows); |
| isNetCore = RuntimeInformation.FrameworkDescription.StartsWith(".NET Core"); |
| #else |
| var platform = Environment.OSVersion.Platform; |
| |
| // PlatformID.MacOSX is never returned, commonly used trick is to identify Mac is by using uname. |
| isMacOSX = (platform == PlatformID.Unix && GetUname() == "Darwin"); |
| isLinux = (platform == PlatformID.Unix && !isMacOSX); |
| isWindows = (platform == PlatformID.Win32NT || platform == PlatformID.Win32S || platform == PlatformID.Win32Windows); |
| isNetCore = false; |
| #endif |
| isMono = Type.GetType("Mono.Runtime") != null; |
| isUnity = Type.GetType(UnityEngineApplicationClassName) != null; |
| isXamarinIOS = Type.GetType(XamarinIOSObjectClassName) != null; |
| isXamarinAndroid = Type.GetType(XamarinAndroidObjectClassName) != null; |
| isXamarin = isXamarinIOS || isXamarinAndroid; |
| } |
| |
| public static bool IsLinux |
| { |
| get { return isLinux; } |
| } |
| |
| public static bool IsMacOSX |
| { |
| get { return isMacOSX; } |
| } |
| |
| public static bool IsWindows |
| { |
| get { return isWindows; } |
| } |
| |
| public static bool IsMono |
| { |
| get { return isMono; } |
| } |
| |
| /// <summary> |
| /// true if running on Unity platform. |
| /// </summary> |
| public static bool IsUnity |
| { |
| get { return isUnity; } |
| } |
| |
| /// <summary> |
| /// true if running on a Xamarin platform (either Xamarin.Android or Xamarin.iOS), |
| /// false otherwise. |
| /// </summary> |
| public static bool IsXamarin |
| { |
| get { return isXamarin; } |
| } |
| |
| /// <summary> |
| /// true if running on Xamarin.iOS, false otherwise. |
| /// </summary> |
| public static bool IsXamarinIOS |
| { |
| get { return isXamarinIOS; } |
| } |
| |
| /// <summary> |
| /// true if running on Xamarin.Android, false otherwise. |
| /// </summary> |
| public static bool IsXamarinAndroid |
| { |
| get { return isXamarinAndroid; } |
| } |
| |
| /// <summary> |
| /// true if running on .NET Core (CoreCLR), false otherwise. |
| /// </summary> |
| public static bool IsNetCore |
| { |
| get { return isNetCore; } |
| } |
| |
| public static bool Is64Bit |
| { |
| get { return IntPtr.Size == 8; } |
| } |
| |
| /// <summary> |
| /// Returns <c>UnityEngine.Application.platform</c> as a string. |
| /// See https://docs.unity3d.com/ScriptReference/Application-platform.html for possible values. |
| /// Value is obtained via reflection to avoid compile-time dependency on Unity. |
| /// This method should only be called if <c>IsUnity</c> is <c>true</c>. |
| /// </summary> |
| public static string GetUnityRuntimePlatform() |
| { |
| GrpcPreconditions.CheckState(IsUnity, "Not running on Unity."); |
| #if NETSTANDARD1_5 |
| return Type.GetType(UnityEngineApplicationClassName).GetTypeInfo().GetProperty("platform").GetValue(null).ToString(); |
| #else |
| return Type.GetType(UnityEngineApplicationClassName).GetProperty("platform").GetValue(null).ToString(); |
| #endif |
| } |
| |
| [DllImport("libc")] |
| static extern int uname(IntPtr buf); |
| |
| static string GetUname() |
| { |
| var buffer = Marshal.AllocHGlobal(8192); |
| try |
| { |
| if (uname(buffer) == 0) |
| { |
| return Marshal.PtrToStringAnsi(buffer); |
| } |
| return string.Empty; |
| } |
| catch |
| { |
| return string.Empty; |
| } |
| finally |
| { |
| if (buffer != IntPtr.Zero) |
| { |
| Marshal.FreeHGlobal(buffer); |
| } |
| } |
| } |
| } |
| } |