adjustments to internal messaging

2023-04-27 15:10:59 +02:00
parent a909319ae3
commit 4f200f2072
7 changed files with 160 additions and 94 deletions
--- a/MareSynchronos/Services/DalamudUtilService.cs
+++ b/MareSynchronos/Services/DalamudUtilService.cs
@@ -147,7 +147,7 @@ public class DalamudUtilService : IHostedService
    {
        if (!_framework.IsInFrameworkUpdateThread)
        {
-            _logger.LogTrace("Running Action on framework thread (FrameworkContext: {ctx}): {member} in {file}:{line}", _framework.IsInFrameworkUpdateThread, callerMember, callerFilePath, lineNumber);
+            //_logger.LogTrace("Running Action on framework thread (FrameworkContext: {ctx}): {member} in {file}:{line}", _framework.IsInFrameworkUpdateThread, callerMember, callerFilePath, lineNumber);

            await _framework.RunOnFrameworkThread(act).ContinueWith((_) => Task.CompletedTask).ConfigureAwait(false);
            while (_framework.IsInFrameworkUpdateThread) // yield the thread again, should technically never be triggered
@@ -165,7 +165,7 @@ public class DalamudUtilService : IHostedService
    {
        if (!_framework.IsInFrameworkUpdateThread)
        {
-            _logger.LogTrace("Running Func on framework thread (FrameworkContext: {ctx}): {member} in {file}:{line}", _framework.IsInFrameworkUpdateThread, callerMember, callerFilePath, lineNumber);
+            //_logger.LogTrace("Running Func on framework thread (FrameworkContext: {ctx}): {member} in {file}:{line}", _framework.IsInFrameworkUpdateThread, callerMember, callerFilePath, lineNumber);

            var result = await _framework.RunOnFrameworkThread(func).ContinueWith((task) => task.Result).ConfigureAwait(false);
            while (_framework.IsInFrameworkUpdateThread) // yield the thread again, should technically never be triggered
--- a/MareSynchronos/Services/Mediator/IMessage.cs
+++ b/MareSynchronos/Services/Mediator/IMessage.cs
@@ -1,3 +0,0 @@
-namespace MareSynchronos.Services.Mediator;
-
-public interface IMessage { }
--- a/MareSynchronos/Services/Mediator/MareMediator.cs
+++ b/MareSynchronos/Services/Mediator/MareMediator.cs
@@ -1,18 +1,18 @@
-using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using System.Collections.Concurrent;
 using System.Text;

 namespace MareSynchronos.Services.Mediator;

-public sealed class MareMediator : IDisposable
+public sealed class MareMediator : IHostedService
 {
    private readonly object _addRemoveLock = new();
-
    private readonly Dictionary<object, DateTime> _lastErrorTime = new();
-
    private readonly ILogger<MareMediator> _logger;
-
+    private readonly CancellationTokenSource _loopCts = new();
+    private readonly ConcurrentQueue<MessageBase> _messageQueue = new();
    private readonly PerformanceCollectorService _performanceCollector;
-
    private readonly Dictionary<Type, HashSet<SubscriberAction>> _subscriberDict = new();

    public MareMediator(ILogger<MareMediator> logger, PerformanceCollectorService performanceCollector)
@@ -21,13 +21,6 @@ public sealed class MareMediator : IDisposable
        _performanceCollector = performanceCollector;
    }

-    public void Dispose()
-    {
-        _logger.LogTrace("Disposing {type}", GetType());
-        _subscriberDict.Clear();
-        GC.SuppressFinalize(this);
-    }
-
    public void PrintSubscriberInfo()
    {
        foreach (var kvp in _subscriberDict.SelectMany(c => c.Value.Select(v => v))
@@ -47,32 +40,52 @@ public sealed class MareMediator : IDisposable
        }
    }

-    public void Publish<T>(T message) where T : IMessage
+    public void Publish<T>(T message) where T : MessageBase
    {
-        if (_subscriberDict.TryGetValue(message.GetType(), out HashSet<SubscriberAction>? subscribers) && subscribers != null && subscribers.Any())
+        if (message.KeepThreadContext)
        {
-            _performanceCollector.LogPerformance(this, $"Publish>{message.GetType().Name}", () =>
-            {
-                foreach (SubscriberAction subscriber in subscribers?.Where(s => s.Subscriber != null).ToHashSet() ?? new HashSet<SubscriberAction>())
-                {
-                    try
-                    {
-                        _performanceCollector.LogPerformance(this, $"Publish>{message.GetType().Name}+{subscriber.Subscriber.GetType().Name}", () => ((Action<T>)subscriber.Action).Invoke(message));
-                    }
-                    catch (Exception ex)
-                    {
-                        if (_lastErrorTime.TryGetValue(subscriber, out var lastErrorTime) && lastErrorTime.Add(TimeSpan.FromSeconds(10)) > DateTime.UtcNow)
-                            continue;
-
-                        _logger.LogCritical(ex, "Error executing {type} for subscriber {subscriber}", message.GetType().Name, subscriber.Subscriber.GetType().Name);
-                        _lastErrorTime[subscriber] = DateTime.UtcNow;
-                    }
-                }
-            });
+            ExecuteMessage(message);
+        }
+        else
+        {
+            _messageQueue.Enqueue(message);
        }
    }

-    public void Subscribe<T>(IMediatorSubscriber subscriber, Action<T> action) where T : IMessage
+    public Task StartAsync(CancellationToken cancellationToken)
+    {
+        _logger.LogTrace("Starting MareMediator");
+
+        _ = Task.Run(async () =>
+        {
+            while (!_loopCts.Token.IsCancellationRequested)
+            {
+                await Task.Delay(100, _loopCts.Token).ConfigureAwait(false);
+
+                HashSet<MessageBase> processedMessages = new();
+                while (_messageQueue.TryDequeue(out var message))
+                {
+                    if (processedMessages.Contains(message)) { continue; }
+                    processedMessages.Add(message);
+
+                    ExecuteMessage(message);
+                }
+            }
+        });
+
+        _logger.LogTrace("Started MareMediator");
+
+        return Task.CompletedTask;
+    }
+
+    public Task StopAsync(CancellationToken cancellationToken)
+    {
+        _messageQueue.Clear();
+        _loopCts.Cancel();
+        return Task.CompletedTask;
+    }
+
+    public void Subscribe<T>(IMediatorSubscriber subscriber, Action<T> action) where T : MessageBase
    {
        lock (_addRemoveLock)
        {
@@ -87,7 +100,7 @@ public sealed class MareMediator : IDisposable
        }
    }

-    public void Unsubscribe<T>(IMediatorSubscriber subscriber) where T : IMessage
+    public void Unsubscribe<T>(IMediatorSubscriber subscriber) where T : MessageBase
    {
        lock (_addRemoveLock)
        {
@@ -113,6 +126,44 @@ public sealed class MareMediator : IDisposable
        }
    }

+    private void ExecuteMessage(MessageBase message)
+    {
+        if (_subscriberDict.TryGetValue(message.GetType(), out HashSet<SubscriberAction>? subscribers) && subscribers != null && subscribers.Any())
+        {
+            HashSet<SubscriberAction> subscribersCopy = new HashSet<SubscriberAction>();
+            lock (_addRemoveLock)
+            {
+                subscribersCopy = subscribers?.Where(s => s.Subscriber != null).ToHashSet() ?? new HashSet<SubscriberAction>();
+            }
+            _performanceCollector.LogPerformance(this, $"Execute>{message.GetType().Name}", () =>
+            {
+                foreach (SubscriberAction subscriber in subscribersCopy)
+                {
+                    try
+                    {
+                        typeof(MareMediator)
+                            .GetMethod(nameof(ExecuteSubscriber), System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)?
+                            .MakeGenericMethod(message.GetType())
+                            .Invoke(this, new object[] { subscriber, message });
+                    }
+                    catch (Exception ex)
+                    {
+                        if (_lastErrorTime.TryGetValue(subscriber, out var lastErrorTime) && lastErrorTime.Add(TimeSpan.FromSeconds(10)) > DateTime.UtcNow)
+                            continue;
+
+                        _logger.LogCritical(ex, "Error executing {type} for subscriber {subscriber}", message.GetType().Name, subscriber.Subscriber.GetType().Name);
+                        _lastErrorTime[subscriber] = DateTime.UtcNow;
+                    }
+                }
+            });
+        }
+    }
+
+    private void ExecuteSubscriber<T>(SubscriberAction subscriber, T message) where T : MessageBase
+    {
+        _performanceCollector.LogPerformance(this, $"Publish>{message.GetType().Name}+{subscriber.Subscriber.GetType().Name}", () => ((Action<T>)subscriber.Action).Invoke(message));
+    }
+
    private sealed class SubscriberAction
    {
        public SubscriberAction(IMediatorSubscriber subscriber, object action)
--- a/MareSynchronos/Services/Mediator/MessageBase.cs
+++ b/MareSynchronos/Services/Mediator/MessageBase.cs
@@ -0,0 +1,6 @@
+namespace MareSynchronos.Services.Mediator;
+
+public abstract record MessageBase
+{
+    public virtual bool KeepThreadContext => false;
+}
--- a/MareSynchronos/Services/Mediator/Messages.cs
+++ b/MareSynchronos/Services/Mediator/Messages.cs
@@ -10,59 +10,71 @@ using System.Numerics;
 namespace MareSynchronos.Services.Mediator;

 #pragma warning disable MA0048 // File name must match type name
-public record SwitchToIntroUiMessage : IMessage;
-public record SwitchToMainUiMessage : IMessage;
-public record OpenSettingsUiMessage : IMessage;
-public record DalamudLoginMessage : IMessage;
-public record DalamudLogoutMessage : IMessage;
-public record FrameworkUpdateMessage : IMessage;
-public record ClassJobChangedMessage(uint? ClassJob) : IMessage;
-public record DelayedFrameworkUpdateMessage : IMessage;
-public record ZoneSwitchStartMessage : IMessage;
-public record ZoneSwitchEndMessage : IMessage;
-public record CutsceneStartMessage : IMessage;
-public record GposeStartMessage : IMessage;
-public record GposeEndMessage : IMessage;
-public record CutsceneEndMessage : IMessage;
-public record CutsceneFrameworkUpdateMessage : IMessage;
-public record ConnectedMessage(ConnectionDto Connection) : IMessage;
-public record DisconnectedMessage : IMessage;
-public record PenumbraModSettingChangedMessage : IMessage;
-public record PenumbraInitializedMessage : IMessage;
-public record PenumbraDisposedMessage : IMessage;
-public record PenumbraRedrawMessage(IntPtr Address, int ObjTblIdx, bool WasRequested) : IMessage;
-public record HeelsOffsetMessage : IMessage;
-public record PenumbraResourceLoadMessage(IntPtr GameObject, string GamePath, string FilePath) : IMessage;
-public record CustomizePlusMessage : IMessage;
-public record PalettePlusMessage(Character Character) : IMessage;
-public record HonorificMessage(string NewHonorificTitle) : IMessage;
-public record PlayerChangedMessage(API.Data.CharacterData Data) : IMessage;
-public record CharacterChangedMessage(GameObjectHandler GameObjectHandler) : IMessage;
-public record TransientResourceChangedMessage(IntPtr Address) : IMessage;
-public record AddWatchedGameObjectHandler(GameObjectHandler Handler) : IMessage;
-public record RemoveWatchedGameObjectHandler(GameObjectHandler Handler) : IMessage;
-public record HaltScanMessage(string Source) : IMessage;
-public record ResumeScanMessage(string Source) : IMessage;
+public record SwitchToIntroUiMessage : MessageBase;
+public record SwitchToMainUiMessage : MessageBase;
+public record OpenSettingsUiMessage : MessageBase;
+public record DalamudLoginMessage : MessageBase;
+public record DalamudLogoutMessage : MessageBase;
+public record FrameworkUpdateMessage : MessageBase
+{
+    public override bool KeepThreadContext => true;
+}
+public record ClassJobChangedMessage(uint? ClassJob) : MessageBase;
+public record DelayedFrameworkUpdateMessage : MessageBase
+{
+    public override bool KeepThreadContext => true;
+}
+public record ZoneSwitchStartMessage : MessageBase;
+public record ZoneSwitchEndMessage : MessageBase;
+public record CutsceneStartMessage : MessageBase;
+public record GposeStartMessage : MessageBase;
+public record GposeEndMessage : MessageBase;
+public record CutsceneEndMessage : MessageBase;
+public record CutsceneFrameworkUpdateMessage : MessageBase
+{
+    public override bool KeepThreadContext => true;
+}
+public record ConnectedMessage(ConnectionDto Connection) : MessageBase;
+public record DisconnectedMessage : MessageBase;
+public record PenumbraModSettingChangedMessage : MessageBase;
+public record PenumbraInitializedMessage : MessageBase;
+public record PenumbraDisposedMessage : MessageBase;
+public record PenumbraRedrawMessage(IntPtr Address, int ObjTblIdx, bool WasRequested) : MessageBase;
+public record HeelsOffsetMessage : MessageBase;
+public record PenumbraResourceLoadMessage(IntPtr GameObject, string GamePath, string FilePath) : MessageBase
+{
+    public override bool KeepThreadContext => true;
+}
+public record CustomizePlusMessage : MessageBase;
+public record PalettePlusMessage(Character Character) : MessageBase;
+public record HonorificMessage(string NewHonorificTitle) : MessageBase;
+public record PlayerChangedMessage(API.Data.CharacterData Data) : MessageBase;
+public record CharacterChangedMessage(GameObjectHandler GameObjectHandler) : MessageBase;
+public record TransientResourceChangedMessage(IntPtr Address) : MessageBase;
+public record AddWatchedGameObjectHandler(GameObjectHandler Handler) : MessageBase;
+public record RemoveWatchedGameObjectHandler(GameObjectHandler Handler) : MessageBase;
+public record HaltScanMessage(string Source) : MessageBase;
+public record ResumeScanMessage(string Source) : MessageBase;
 public record NotificationMessage
-    (string Title, string Message, NotificationType Type, uint TimeShownOnScreen = 3000) : IMessage;
-public record CreateCacheForObjectMessage(GameObjectHandler ObjectToCreateFor) : IMessage;
-public record ClearCacheForObjectMessage(GameObjectHandler ObjectToCreateFor) : IMessage;
-public record CharacterDataCreatedMessage(API.Data.CharacterData CharacterData) : IMessage;
-public record PenumbraStartRedrawMessage(IntPtr Address) : IMessage;
-public record PenumbraEndRedrawMessage(IntPtr Address) : IMessage;
-public record HubReconnectingMessage(Exception? Exception) : IMessage;
-public record HubReconnectedMessage(string? Arg) : IMessage;
-public record HubClosedMessage(Exception? Exception) : IMessage;
-public record DownloadReadyMessage(Guid RequestId) : IMessage;
-public record DownloadStartedMessage(GameObjectHandler DownloadId, Dictionary<string, FileDownloadStatus> DownloadStatus) : IMessage;
-public record DownloadFinishedMessage(GameObjectHandler DownloadId) : IMessage;
-public record UiToggleMessage(Type UiType) : IMessage;
-public record PlayerUploadingMessage(GameObjectHandler Handler, bool IsUploading) : IMessage;
-public record ClearProfileDataMessage(UserData? UserData = null) : IMessage;
-public record CyclePauseMessage(UserData UserData) : IMessage;
-public record ProfilePopoutToggle(Pair? Pair) : IMessage;
-public record CompactUiChange(Vector2 Size, Vector2 Position) : IMessage;
-public record ProfileOpenStandaloneMessage(Pair Pair) : IMessage;
-public record RemoveWindowMessage(WindowMediatorSubscriberBase Window) : IMessage;
+    (string Title, string Message, NotificationType Type, uint TimeShownOnScreen = 3000) : MessageBase;
+public record CreateCacheForObjectMessage(GameObjectHandler ObjectToCreateFor) : MessageBase;
+public record ClearCacheForObjectMessage(GameObjectHandler ObjectToCreateFor) : MessageBase;
+public record CharacterDataCreatedMessage(API.Data.CharacterData CharacterData) : MessageBase;
+public record PenumbraStartRedrawMessage(IntPtr Address) : MessageBase;
+public record PenumbraEndRedrawMessage(IntPtr Address) : MessageBase;
+public record HubReconnectingMessage(Exception? Exception) : MessageBase;
+public record HubReconnectedMessage(string? Arg) : MessageBase;
+public record HubClosedMessage(Exception? Exception) : MessageBase;
+public record DownloadReadyMessage(Guid RequestId) : MessageBase;
+public record DownloadStartedMessage(GameObjectHandler DownloadId, Dictionary<string, FileDownloadStatus> DownloadStatus) : MessageBase;
+public record DownloadFinishedMessage(GameObjectHandler DownloadId) : MessageBase;
+public record UiToggleMessage(Type UiType) : MessageBase;
+public record PlayerUploadingMessage(GameObjectHandler Handler, bool IsUploading) : MessageBase;
+public record ClearProfileDataMessage(UserData? UserData = null) : MessageBase;
+public record CyclePauseMessage(UserData UserData) : MessageBase;
+public record ProfilePopoutToggle(Pair? Pair) : MessageBase;
+public record CompactUiChange(Vector2 Size, Vector2 Position) : MessageBase;
+public record ProfileOpenStandaloneMessage(Pair Pair) : MessageBase;
+public record RemoveWindowMessage(WindowMediatorSubscriberBase Window) : MessageBase;

 #pragma warning restore MA0048 // File name must match type name