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Add test coverage of potential deeadlock scenario with nested realm context fetching
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@ -5,6 +5,9 @@ using System;
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using System.Threading;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Threading.Tasks;
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using NUnit.Framework;
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using NUnit.Framework;
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using osu.Game.Database;
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using osu.Game.Models;
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using Realms;
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#nullable enable
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#nullable enable
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@ -33,6 +36,37 @@ namespace osu.Game.Tests.Database
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});
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});
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}
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}
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[Test]
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public void TestNestedContextCreation()
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{
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RunTestWithRealm((realmFactory, _) =>
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{
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var mainContext = realmFactory.Context;
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bool callbackRan = false;
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var subscription = mainContext.All<RealmBeatmap>().SubscribeForNotifications((sender, changes, error) =>
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{
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realmFactory.CreateContext();
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callbackRan = true;
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});
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Task.Factory.StartNew(() =>
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{
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using (var threadContext = realmFactory.CreateContext())
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{
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threadContext.Write(r => r.Add(new RealmBeatmap(CreateRuleset(), new RealmBeatmapDifficulty(), new RealmBeatmapMetadata())));
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}
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}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
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// will create a context but also run the callback above (Refresh is implicitly run when getting a new context).
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realmFactory.CreateContext();
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Assert.IsTrue(callbackRan);
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subscription.Dispose();
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});
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}
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[Test]
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[Test]
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public void TestBlockOperationsWithContention()
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public void TestBlockOperationsWithContention()
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{
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{
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