Ryujinx/Ryujinx.Common/Configuration/LoggerModule.cs

using Ryujinx.Common;
using Ryujinx.Common.Logging;
using System;
using System.IO;

namespace Ryujinx.Configuration
{
    public static class LoggerModule
    {
        public static void Initialize()
        {
            AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
            AppDomain.CurrentDomain.ProcessExit        += CurrentDomain_ProcessExit;

            ConfigurationState.Instance.Logger.EnableDebug.Event       += ReloadEnableDebug;
            ConfigurationState.Instance.Logger.EnableStub.Event        += ReloadEnableStub;
            ConfigurationState.Instance.Logger.EnableInfo.Event        += ReloadEnableInfo;
            ConfigurationState.Instance.Logger.EnableWarn.Event        += ReloadEnableWarning;
            ConfigurationState.Instance.Logger.EnableError.Event       += ReloadEnableError;
            ConfigurationState.Instance.Logger.EnableGuest.Event       += ReloadEnableGuest;
            ConfigurationState.Instance.Logger.EnableFsAccessLog.Event += ReloadEnableFsAccessLog;
            ConfigurationState.Instance.Logger.FilteredClasses.Event   += ReloadFilteredClasses;
            ConfigurationState.Instance.Logger.EnableFileLog.Event     += ReloadFileLogger;
        }

        private static void ReloadEnableDebug(object sender, ReactiveEventArgs<bool> e)
        {
            Logger.SetEnable(LogLevel.Debug, e.NewValue);
        }

        private static void ReloadEnableStub(object sender, ReactiveEventArgs<bool> e)
        {
            Logger.SetEnable(LogLevel.Stub, e.NewValue);
        }

        private static void ReloadEnableInfo(object sender, ReactiveEventArgs<bool> e)
        {
            Logger.SetEnable(LogLevel.Info, e.NewValue);
        }

        private static void ReloadEnableWarning(object sender, ReactiveEventArgs<bool> e)
        {
            Logger.SetEnable(LogLevel.Warning, e.NewValue);
        }

        private static void ReloadEnableError(object sender, ReactiveEventArgs<bool> e)
        {
            Logger.SetEnable(LogLevel.Error, e.NewValue);
        }

        private static void ReloadEnableGuest(object sender, ReactiveEventArgs<bool> e)
        {
            Logger.SetEnable(LogLevel.Guest, e.NewValue);
        }

        private static void ReloadEnableFsAccessLog(object sender, ReactiveEventArgs<bool> e)
        {
            Logger.SetEnable(LogLevel.AccessLog, e.NewValue);
        }

        private static void ReloadFilteredClasses(object sender, ReactiveEventArgs<LogClass[]> e)
        {
            bool noFilter = e.NewValue.Length == 0;

            foreach (var logClass in EnumExtensions.GetValues<LogClass>())
            {
                Logger.SetEnable(logClass, noFilter);
            }

            foreach (var logClass in e.NewValue)
            {
                Logger.SetEnable(logClass, true);
            }
        }

        private static void ReloadFileLogger(object sender, ReactiveEventArgs<bool> e)
        {
            if (e.NewValue)
            {
                Logger.AddTarget(new AsyncLogTargetWrapper(
                    new FileLogTarget(AppDomain.CurrentDomain.BaseDirectory, "file"),
                    1000,
                    AsyncLogTargetOverflowAction.Block
                ));
            }
            else
            {
                Logger.RemoveTarget("file");
            }
        }

        private static void CurrentDomain_ProcessExit(object sender, EventArgs e)
        {
            Logger.Shutdown();
        }

        private static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            var exception = e.ExceptionObject as Exception;

            Logger.PrintError(LogClass.Emulation, $"Unhandled exception caught: {exception}");

            if (e.IsTerminating)
            {
                Logger.Shutdown();
            }
        }
    }
}