Remove unnecessary CommonProcess abstraction

5 files changed, 28 insertions, 181 deletions

diff --git a/Emby.Server.Implementations/ApplicationHost.cs b/Emby.Server.Implementations/ApplicationHost.cs
index d6a572818..bc637b02f 100644
--- a/Emby.Server.Implementations/ApplicationHost.cs
+++ b/Emby.Server.Implementations/ApplicationHost.cs
@@ -1727,15 +1727,15 @@ namespace Emby.Server.Implementations
                 throw new NotSupportedException();
             }
 
-            var process = ProcessFactory.Create(new ProcessOptions
+            var process = ProcessFactory.Create(new ProcessStartInfo
             {
                 FileName = url,
-                EnableRaisingEvents = true,
                 UseShellExecute = true,
                 ErrorDialog = false
             });
 
-            process.Exited += ProcessExited;
+            process.EnableRaisingEvents = true;
+            process.Exited += (sender, args) => ((Process)sender).Dispose(); ;
 
             try
             {
@@ -1748,11 +1748,6 @@ namespace Emby.Server.Implementations
             }
         }
 
-        private static void ProcessExited(object sender, EventArgs e)
-        {
-            ((IProcess)sender).Dispose();
-        }
-
         public virtual void EnableLoopback(string appName)
         {
         }
diff --git a/Emby.Server.Implementations/Diagnostics/CommonProcess.cs b/Emby.Server.Implementations/Diagnostics/CommonProcess.cs
deleted file mode 100644
index bfa49ac5f..000000000
--- a/Emby.Server.Implementations/Diagnostics/CommonProcess.cs
+++ /dev/null
@@ -1,152 +0,0 @@
-#pragma warning disable CS1591
-
-using System;
-using System.Diagnostics;
-using System.IO;
-using System.Threading;
-using System.Threading.Tasks;
-using MediaBrowser.Model.Diagnostics;
-
-namespace Emby.Server.Implementations.Diagnostics
-{
-    public class CommonProcess : IProcess
-    {
-        private readonly Process _process;
-
-        private bool _disposed = false;
-        private bool _hasExited;
-
-        public CommonProcess(ProcessOptions options)
-        {
-            StartInfo = options;
-
-            var startInfo = new ProcessStartInfo
-            {
-                Arguments = options.Arguments,
-                FileName = options.FileName,
-                WorkingDirectory = options.WorkingDirectory,
-                UseShellExecute = options.UseShellExecute,
-                CreateNoWindow = options.CreateNoWindow,
-                RedirectStandardError = options.RedirectStandardError,
-                RedirectStandardInput = options.RedirectStandardInput,
-                RedirectStandardOutput = options.RedirectStandardOutput,
-                ErrorDialog = options.ErrorDialog
-            };
-
-
-            if (options.IsHidden)
-            {
-                startInfo.WindowStyle = ProcessWindowStyle.Hidden;
-            }
-
-            _process = new Process
-            {
-                StartInfo = startInfo
-            };
-
-            if (options.EnableRaisingEvents)
-            {
-                _process.EnableRaisingEvents = true;
-                _process.Exited += OnProcessExited;
-            }
-        }
-
-        public event EventHandler Exited;
-
-        public ProcessOptions StartInfo { get; }
-
-        public StreamWriter StandardInput => _process.StandardInput;
-
-        public StreamReader StandardError => _process.StandardError;
-
-        public StreamReader StandardOutput => _process.StandardOutput;
-
-        public int ExitCode => _process.ExitCode;
-
-        private bool HasExited
-        {
-            get
-            {
-                if (_hasExited)
-                {
-                    return true;
-                }
-
-                try
-                {
-                    _hasExited = _process.HasExited;
-                }
-                catch (InvalidOperationException)
-                {
-                    _hasExited = true;
-                }
-
-                return _hasExited;
-            }
-        }
-
-        public void Start()
-        {
-            _process.Start();
-        }
-
-        public void Kill()
-        {
-            _process.Kill();
-        }
-
-        public bool WaitForExit(int timeMs)
-        {
-            return _process.WaitForExit(timeMs);
-        }
-
-        public Task<bool> WaitForExitAsync(int timeMs)
-        {
-            // Note: For this function to work correctly, the option EnableRisingEvents needs to be set to true.
-
-            if (HasExited)
-            {
-                return Task.FromResult(true);
-            }
-
-            timeMs = Math.Max(0, timeMs);
-
-            var tcs = new TaskCompletionSource<bool>();
-
-            var cancellationToken = new CancellationTokenSource(timeMs).Token;
-
-            _process.Exited += (sender, args) => tcs.TrySetResult(true);
-
-            cancellationToken.Register(() => tcs.TrySetResult(HasExited));
-
-            return tcs.Task;
-        }
-
-        public void Dispose()
-        {
-            Dispose(true);
-            GC.SuppressFinalize(this);
-        }
-
-        protected virtual void Dispose(bool disposing)
-        {
-            if (_disposed)
-            {
-                return;
-            }
-
-            if (disposing)
-            {
-                _process?.Dispose();
-            }
-
-            _disposed = true;
-        }
-
-        private void OnProcessExited(object sender, EventArgs e)
-        {
-            _hasExited = true;
-            Exited?.Invoke(this, e);
-        }
-    }
-}
diff --git a/Emby.Server.Implementations/Diagnostics/ProcessFactory.cs b/Emby.Server.Implementations/Diagnostics/ProcessFactory.cs
index 02ad3c1a8..00172e17a 100644
--- a/Emby.Server.Implementations/Diagnostics/ProcessFactory.cs
+++ b/Emby.Server.Implementations/Diagnostics/ProcessFactory.cs
@@ -1,14 +1,15 @@
 #pragma warning disable CS1591
 
+using System.Diagnostics;
 using MediaBrowser.Model.Diagnostics;
 
 namespace Emby.Server.Implementations.Diagnostics
 {
     public class ProcessFactory : IProcessFactory
     {
-        public IProcess Create(ProcessOptions options)
+        public Process Create(ProcessStartInfo startInfo)
         {
-            return new CommonProcess(options);
+            return new Process { StartInfo = startInfo };
         }
     }
 }
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
index 139aa19a4..0f54022c8 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs
@@ -3,6 +3,7 @@
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Globalization;
 using System.IO;
 using System.Linq;
@@ -1683,19 +1684,19 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
             try
             {
-                var process = _processFactory.Create(new ProcessOptions
+                var process = _processFactory.Create(new ProcessStartInfo
                 {
                     Arguments = GetPostProcessArguments(path, options.RecordingPostProcessorArguments),
                     CreateNoWindow = true,
-                    EnableRaisingEvents = true,
                     ErrorDialog = false,
                     FileName = options.RecordingPostProcessor,
-                    IsHidden = true,
+                    WindowStyle = ProcessWindowStyle.Hidden,
                     UseShellExecute = false
                 });
 
                 _logger.LogInformation("Running recording post processor {0} {1}", process.StartInfo.FileName, process.StartInfo.Arguments);
 
+                process.EnableRaisingEvents = true;
                 process.Exited += Process_Exited;
                 process.Start();
             }
@@ -1712,11 +1713,14 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
 
         private void Process_Exited(object sender, EventArgs e)
         {
-            using (var process = (IProcess)sender)
+            try
             {
-                _logger.LogInformation("Recording post-processing script completed with exit code {ExitCode}", process.ExitCode);
-
-                process.Dispose();
+                var exitCode = ((Process)sender).ExitCode;
+                _logger.LogInformation("Recording post-processing script completed with exit code {ExitCode}", exitCode);
+            }
+            finally
+            {
+                ((Process)sender).Dispose();
             }
         }
 
diff --git a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
index 8590c56df..3591384de 100644
--- a/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
+++ b/Emby.Server.Implementations/LiveTv/EmbyTV/EncodedRecorder.cs
@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Globalization;
 using System.IO;
 using System.Text;
@@ -30,7 +31,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
         private bool _hasExited;
         private Stream _logFileStream;
         private string _targetPath;
-        private IProcess _process;
+        private Process _process;
         private readonly IProcessFactory _processFactory;
         private readonly IJsonSerializer _json;
         private readonly TaskCompletionSource<bool> _taskCompletionSource = new TaskCompletionSource<bool>();
@@ -80,7 +81,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             _targetPath = targetFile;
             Directory.CreateDirectory(Path.GetDirectoryName(targetFile));
 
-            var process = _processFactory.Create(new ProcessOptions
+            _process = _processFactory.Create(new ProcessStartInfo
             {
                 CreateNoWindow = true,
                 UseShellExecute = false,
@@ -91,14 +92,11 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
                 FileName = _mediaEncoder.EncoderPath,
                 Arguments = GetCommandLineArgs(mediaSource, inputFile, targetFile, duration),
 
-                IsHidden = true,
-                ErrorDialog = false,
-                EnableRaisingEvents = true
+                WindowStyle = ProcessWindowStyle.Hidden,
+                ErrorDialog = false
             });
 
-            _process = process;
-
-            var commandLineLogMessage = process.StartInfo.FileName + " " + process.StartInfo.Arguments;
+            var commandLineLogMessage = _process.StartInfo.FileName + " " + _process.StartInfo.Arguments;
             _logger.LogInformation(commandLineLogMessage);
 
             var logFilePath = Path.Combine(_appPaths.LogDirectoryPath, "record-transcode-" + Guid.NewGuid() + ".txt");
@@ -110,16 +108,17 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
             var commandLineLogMessageBytes = Encoding.UTF8.GetBytes(_json.SerializeToString(mediaSource) + Environment.NewLine + Environment.NewLine + commandLineLogMessage + Environment.NewLine + Environment.NewLine);
             _logFileStream.Write(commandLineLogMessageBytes, 0, commandLineLogMessageBytes.Length);
 
-            process.Exited += (sender, args) => OnFfMpegProcessExited(process, inputFile);
+            _process.EnableRaisingEvents = true;
+            _process.Exited += (sender, args) => OnFfMpegProcessExited(_process, inputFile);
 
-            process.Start();
+            _process.Start();
 
             cancellationToken.Register(Stop);
 
             onStarted();
 
             // Important - don't await the log task or we won't be able to kill ffmpeg when the user stops playback
-            StartStreamingLog(process.StandardError.BaseStream, _logFileStream);
+            StartStreamingLog(_process.StandardError.BaseStream, _logFileStream);
 
             _logger.LogInformation("ffmpeg recording process started for {0}", _targetPath);
 
@@ -293,7 +292,7 @@ namespace Emby.Server.Implementations.LiveTv.EmbyTV
         /// <summary>
         /// Processes the exited.
         /// </summary>
-        private void OnFfMpegProcessExited(IProcess process, string inputFile)
+        private void OnFfMpegProcessExited(Process process, string inputFile)
         {
             _hasExited = true;