diff options
| author | TSR Berry <20988865+TSRBerry@users.noreply.github.com> | 2023-04-08 01:22:00 +0200 |
|---|---|---|
| committer | Mary <thog@protonmail.com> | 2023-04-27 23:51:14 +0200 |
| commit | cee712105850ac3385cd0091a923438167433f9f (patch) | |
| tree | 4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/Ryujinx.Common/SystemInterop/StdErrAdapter.cs | |
| parent | cd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff) | |
Move solution and projects to src
Diffstat (limited to 'src/Ryujinx.Common/SystemInterop/StdErrAdapter.cs')
| -rw-r--r-- | src/Ryujinx.Common/SystemInterop/StdErrAdapter.cs | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/Ryujinx.Common/SystemInterop/StdErrAdapter.cs b/src/Ryujinx.Common/SystemInterop/StdErrAdapter.cs new file mode 100644 index 00000000..b1ed7b68 --- /dev/null +++ b/src/Ryujinx.Common/SystemInterop/StdErrAdapter.cs @@ -0,0 +1,109 @@ +using Microsoft.Win32.SafeHandles; +using Ryujinx.Common.Logging; +using System; +using System.IO; +using System.Runtime.InteropServices; +using System.Runtime.Versioning; +using System.Threading; +using System.Threading.Tasks; + +namespace Ryujinx.Common.SystemInterop +{ + public partial class StdErrAdapter : IDisposable + { + private bool _disposable = false; + private Stream _pipeReader; + private Stream _pipeWriter; + private CancellationTokenSource _cancellationTokenSource; + private Task _worker; + + public StdErrAdapter() + { + if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS()) + { + RegisterPosix(); + } + } + + [SupportedOSPlatform("linux")] + [SupportedOSPlatform("macos")] + private void RegisterPosix() + { + const int stdErrFileno = 2; + + (int readFd, int writeFd) = MakePipe(); + dup2(writeFd, stdErrFileno); + + _pipeReader = CreateFileDescriptorStream(readFd); + _pipeWriter = CreateFileDescriptorStream(writeFd); + + _cancellationTokenSource = new CancellationTokenSource(); + _worker = Task.Run(async () => await EventWorkerAsync(_cancellationTokenSource.Token), _cancellationTokenSource.Token); + _disposable = true; + } + + [SupportedOSPlatform("linux")] + [SupportedOSPlatform("macos")] + private async Task EventWorkerAsync(CancellationToken cancellationToken) + { + using TextReader reader = new StreamReader(_pipeReader, leaveOpen: true); + string line; + while (cancellationToken.IsCancellationRequested == false && (line = await reader.ReadLineAsync(cancellationToken)) != null) + { + Logger.Error?.PrintRawMsg(line); + } + } + + private void Dispose(bool disposing) + { + if (_disposable) + { + _disposable = false; + + if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS()) + { + _cancellationTokenSource.Cancel(); + _worker.Wait(0); + _pipeReader?.Close(); + _pipeWriter?.Close(); + } + } + } + + public void Dispose() + { + Dispose(true); + } + + [LibraryImport("libc", SetLastError = true)] + private static partial int dup2(int fd, int fd2); + + [LibraryImport("libc", SetLastError = true)] + private static partial int pipe(Span<int> pipefd); + + private static (int, int) MakePipe() + { + Span<int> pipefd = stackalloc int[2]; + + if (pipe(pipefd) == 0) + { + return (pipefd[0], pipefd[1]); + } + else + { + throw new(); + } + } + + [SupportedOSPlatform("linux")] + [SupportedOSPlatform("macos")] + private static Stream CreateFileDescriptorStream(int fd) + { + return new FileStream( + new SafeFileHandle((IntPtr)fd, ownsHandle: true), + FileAccess.ReadWrite + ); + } + + } +} |