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Ryujinx.Ava: fixes for random hangs on exit (#4827)

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* Attempt at fixing hang on exit by ending the WindowNotificationManager notification loop, so that the Thread running it can exit.

* explicitly apply the NotificationManager template to allow the notification loop to begin

* NotificationHelper - remove explicity call to ApplyTemplate(). Change to ManualResetEventSlim so we can cancel the Wait on it.

* add a timeout to AudioRenderSystem.Stop()'s waiting for the termination signal, log a warning if this timeout occurs, and continue execution

* NotifiationHelper - cancel first, the CompleteAdding()

* Remove AudioRenderSystem._terminationEvent, redundant

* NotificationHelper - use host.Closing event to trigger cancellation instead of _notifationManager.DetachedFromLogicalTree

* Change NotificationHelper to use an explicit Thread for background work.  Wait on the cancellationToken's WaitHandle so the Thread doesn't have to deal with async. Wrap foreach in try/catch (OperationCanceledException) to swallow the escaping exception from the GetConsumingEnumerable().

* adjust formatting of AsyncWorkQueue constructor to use object initializers consistently

* use AsyncWorkQueue to do everything I added in SetNotificationManager()

* Revert "use AsyncWorkQueue to do everything I added in SetNotificationManager()"

This reverts commit f0e78366b8776ec8e2fef8ab023c0db1833155d3.

* use AsyncWorkQueue to handle the Thread-related changes previously made to NotificationHelper.SetNotificationHelper(). Wrap it in Lazy<T> and force instantiation in the TemplateApplied event handler to accomodate for the fact that AsyncWorkQueue starts immediately, and the notification dispatch loop was being delayed by _templateAppliedEvent.

* impl changes suggested by AcK77

* impl changes suggested by AcK77 (more)
This commit is contained in:
jhorv
2023-05-26 17:57:43 -04:00
committed by GitHub
parent 3b375525fb
commit 42b9c1e8fe
3 changed files with 25 additions and 32 deletions
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35
src/Ryujinx.Ava/UI/Helpers/NotificationHelper.cs
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@ -3,21 +3,20 @@ using Avalonia.Controls;
using Avalonia.Controls.Notifications;
using Avalonia.Threading;
using Ryujinx.Ava.Common.Locale;
using Ryujinx.Common;
using System;
using System.Collections.Concurrent;
using System.Threading;
using System.Threading.Tasks;
namespace Ryujinx.Ava.UI.Helpers
{
public static class NotificationHelper
{
private const int MaxNotifications = 4;
private const int MaxNotifications = 4;
private const int NotificationDelayInMs = 5000;
private static WindowNotificationManager _notificationManager;
private static readonly ManualResetEvent _templateAppliedEvent = new(false);
private static readonly BlockingCollection<Notification> _notifications = new();
public static void SetNotificationManager(Window host)
@ -29,25 +28,31 @@ namespace Ryujinx.Ava.UI.Helpers
Margin = new Thickness(0, 0, 15, 40)
};
var maybeAsyncWorkQueue = new Lazy<AsyncWorkQueue<Notification>>(
() => new AsyncWorkQueue<Notification>(notification =>
{
Dispatcher.UIThread.Post(() =>
{
_notificationManager.Show(notification);
});
},
"UI.NotificationThread",
_notifications),
LazyThreadSafetyMode.ExecutionAndPublication);
_notificationManager.TemplateApplied += (sender, args) =>
{
_templateAppliedEvent.Set();
// NOTE: Force creation of the AsyncWorkQueue.
_ = maybeAsyncWorkQueue.Value;
};
Task.Run(async () =>
host.Closing += (sender, args) =>
{
_templateAppliedEvent.WaitOne();
foreach (var notification in _notifications.GetConsumingEnumerable())
if (maybeAsyncWorkQueue.IsValueCreated)
{
Dispatcher.UIThread.Post(() =>
{
_notificationManager.Show(notification);
});
await Task.Delay(NotificationDelayInMs / MaxNotifications);
maybeAsyncWorkQueue.Value.Dispose();
}
});
};
}
public static void Show(string title, string text, NotificationType type, bool waitingExit = false, Action onClick = null, Action onClose = null)