| #region Copyright notice and license |
| |
| // Copyright 2021 The 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.Runtime.CompilerServices; |
| using System.Runtime.InteropServices; |
| |
| namespace Grpc.Core.Internal |
| { |
| /// <summary> |
| /// This source file is shared by both Grpc.Core and Grpc.Tools to avoid duplication |
| /// of platform detection code. |
| /// </summary> |
| internal static class CommonPlatformDetection |
| { |
| public enum OSKind { Unknown, Windows, Linux, MacOSX }; |
| public enum CpuArchitecture { Unknown, X86, X64, Arm64 }; |
| |
| public static OSKind GetOSKind() |
| { |
| #if NETSTANDARD || NETCORE |
| if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) |
| { |
| return OSKind.Windows; |
| } |
| else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux)) |
| { |
| return OSKind.Linux; |
| } |
| else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) |
| { |
| return OSKind.MacOSX; |
| } |
| else |
| { |
| return OSKind.Unknown; |
| } |
| #else |
| var platform = Environment.OSVersion.Platform; |
| if (platform == PlatformID.Win32NT || platform == PlatformID.Win32S || platform == PlatformID.Win32Windows) |
| { |
| return OSKind.Windows; |
| } |
| else if (platform == PlatformID.Unix && GetUname() == "Darwin") |
| { |
| // PlatformID.MacOSX is never returned, commonly used trick is to identify Mac is by using uname. |
| return OSKind.MacOSX; |
| } |
| else if (platform == PlatformID.Unix) |
| { |
| // on legacy .NET Framework, our detection options are limited, so we treat |
| // all other unix systems as Linux. |
| return OSKind.Linux; |
| } |
| else |
| { |
| return OSKind.Unknown; |
| } |
| #endif |
| } |
| |
| public static CpuArchitecture GetProcessArchitecture() |
| { |
| #if NETSTANDARD || NETCORE |
| switch (RuntimeInformation.ProcessArchitecture) |
| { |
| case Architecture.X86: |
| return CpuArchitecture.X86; |
| case Architecture.X64: |
| return CpuArchitecture.X64; |
| case Architecture.Arm64: |
| return CpuArchitecture.Arm64; |
| // We do not support other architectures, |
| // so we simply return "unrecognized". |
| default: |
| return CpuArchitecture.Unknown; |
| } |
| #else |
| // on legacy .NET Framework, RuntimeInformation is not available |
| // but our choice of supported architectures there |
| // is also very limited, so we simply take our best guess. |
| return Environment.Is64BitProcess ? CpuArchitecture.X64 : CpuArchitecture.X86; |
| #endif |
| } |
| |
| [DllImport("libc")] |
| static extern int uname(IntPtr buf); |
| |
| // This code is copied from Grpc.Core/PlatformApis.cs |
| 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); |
| } |
| } |
| } |
| } |
| } |