added file logging

Ryujinx/Program.cs

@@ -23,8 +23,10 @@ namespace Ryujinx
             Config.Read(device);
 
             Logger.Updated += ConsoleLog.Log;
+            Logger.Updated += FileLog.Log;
 
             AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
+            AppDomain.CurrentDomain.ProcessExit        += CurrentDomain_ProcessExit;
 
             if (args.Length == 1)
             {
@@ -88,16 +90,19 @@ namespace Ryujinx
             audioOut.Dispose();
         }
 
+        private static void CurrentDomain_ProcessExit(object sender, EventArgs e)
+        {
+            FileLog.Close();
+        }
+
         private static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
         {
             var exception = e.ExceptionObject as Exception;
 
             Logger.PrintError(LogClass.Emulation, $"Unhandled exception caught: {exception}");
-            Logger.PrintInfo(LogClass.Emulation,"Press any key to close the application...");
 
-            Console.ReadKey();
-
-            Environment.Exit(0);
+            if (e.IsTerminating)
+                FileLog.Close();
         }
 
         /// <summary>

Ryujinx/Ui/FileLog.cs

@@ -0,0 +1,110 @@
+using Ryujinx.Common.Logging;
+using System;
+using System.Collections.Concurrent;
+using System.IO;
+using System.Reflection;
+using System.Text;
+using System.Threading;
+
+namespace Ryujinx
+{
+    static class FileLog
+    {
+        private static string _path;
+
+        private static Thread _messageThread;
+
+        private static BlockingCollection<LogEventArgs> _messageQueue;
+
+        private static StreamWriter _logWriter;
+
+        static FileLog()
+        {
+            _path = Path.Combine(Environment.CurrentDirectory, "Ryujinx.log");
+
+            if (File.Exists(_path))
+            {
+                File.Delete(_path);
+            }
+
+            _messageQueue = new BlockingCollection<LogEventArgs>(10);
+
+            _messageThread = new Thread(() =>
+            {
+                while (!_messageQueue.IsCompleted)
+                {
+                    try
+                    {
+                        PrintLog(_messageQueue.Take());
+                    }
+                    catch (InvalidOperationException)
+                    {
+                        // IOE means that Take() was called on a completed collection.
+                        // Some other thread can call CompleteAdding after we pass the
+                        // IsCompleted check but before we call Take.
+                        // We can simply catch the exception since the loop will break
+                        // on the next iteration.
+                    }
+                }
+            });
+
+            _logWriter = new StreamWriter(File.OpenWrite(_path));
+
+            _messageThread.IsBackground = true;
+            _messageThread.Start();
+        }
+
+        public static void Log(object sender, LogEventArgs e)
+        {
+            if (!_messageQueue.IsAddingCompleted)
+            {
+                _messageQueue.Add(e);
+            }
+        }
+
+        private static void PrintLog(LogEventArgs e)
+        {
+            StringBuilder sb = new StringBuilder();
+
+            sb.AppendFormat(@"{0:hh\:mm\:ss\.fff}", e.Time);
+            sb.Append(" | ");
+            sb.AppendFormat("{0:d4}", e.ThreadId);
+            sb.Append(' ');
+            sb.Append(e.Message);
+
+            if (e.Data != null)
+            {
+                PropertyInfo[] props = e.Data.GetType().GetProperties();
+
+                sb.Append(' ');
+
+                foreach (var prop in props)
+                {
+                    sb.Append(prop.Name);
+                    sb.Append(": ");
+                    sb.Append(prop.GetValue(e.Data));
+                    sb.Append(" - ");
+                }
+
+                // We remove the final '-' from the string
+                if (props.Length > 0)
+                {
+                    sb.Remove(sb.Length - 3, 3);
+                }
+            }
+
+            _logWriter.WriteLine(sb.ToString());
+        }
+
+        public static void Close()
+        {
+            _messageQueue.CompleteAdding();
+
+            _messageThread.Join();
+
+            _logWriter.Flush();
+            _logWriter.Close();
+            _logWriter.Dispose();
+        }
+    }
+}