feat(eventbus): add platform runtimes and benchmarks

Add the Entities NativeQueue adapter, standalone .NET runtime and source generator, reproducible smoke coverage, and Unity benchmark assets for EventBus 2.0.
2026-08-26 01:17:39 +08:00
parent ad5a7b68a3
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+# ShrinkEventBus Entities
+
+`com.cneicy.shrink-eventbus-entities` 是可选 ECS/Burst 适配包。它不创建第二套事件总线，而是让 Burst Job 把 `unmanaged IShrinkEvent` 写入 `NativeQueue<T>`，随后由主线程或 ECS playback system 发布到指定的 `IShrinkEventBus`。
+
+```csharp
+using var queue = new ShrinkEcsEventQueue<MyEcsEvent>();
+var writer = queue.Writer;
+
+// Burst Job 中：writer.Post(in eventData);
+// Playback 阶段：
+queue.Playback(worldBus);
+```
+
+限制：Burst 端只负责事实事件生产，不能直接执行托管 handler、UniTask、取消或结果裁决。
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+#nullable enable
+
+using System;
+using ShrinkEventBus;
+using Unity.Collections;
+
+namespace ShrinkEventBus.Entities
+{
+    /// <summary>Burst-safe producer queue; playback enters the regular Bus instance.</summary>
+    public sealed class ShrinkEcsEventQueue<TEvent> : IDisposable where TEvent : unmanaged, IShrinkEvent
+    {
+        private NativeQueue<TEvent> _queue;
+
+        public ShrinkEcsEventQueue(Allocator allocator = Allocator.Persistent)
+        {
+            _queue = new NativeQueue<TEvent>(allocator);
+            Writer = new ShrinkEcsEventWriter<TEvent>(_queue.AsParallelWriter());
+        }
+
+        public ShrinkEcsEventWriter<TEvent> Writer { get; }
+
+        public int Playback(IShrinkEventBus bus)
+        {
+            if (bus == null)
+                throw new ArgumentNullException(nameof(bus));
+            var count = 0;
+            while (_queue.TryDequeue(out var eventData))
+            {
+                bus.Post(in eventData);
+                count++;
+            }
+            return count;
+        }
+
+        public void Dispose()
+        {
+            if (_queue.IsCreated)
+                _queue.Dispose();
+        }
+    }
+
+    public readonly struct ShrinkEcsEventWriter<TEvent> where TEvent : unmanaged, IShrinkEvent
+    {
+        private readonly NativeQueue<TEvent>.ParallelWriter _writer;
+
+        internal ShrinkEcsEventWriter(NativeQueue<TEvent>.ParallelWriter writer)
+        {
+            _writer = writer;
+        }
+
+        public void Post(in TEvent eventData) => _writer.Enqueue(eventData);
+    }
+}
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+{
+  "name": "ShrinkEventBus.Entities.Runtime",
+  "rootNamespace": "ShrinkEventBus.Entities",
+  "references": [
+    "ShrinkEventBus.Runtime",
+    "Unity.Collections",
+    "Unity.Entities"
+  ],
+  "includePlatforms": [],
+  "excludePlatforms": [],
+  "allowUnsafeCode": true,
+  "autoReferenced": false
+}
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+#nullable enable
+
+using System;
+using NUnit.Framework;
+using Unity.Burst;
+using Unity.Collections;
+using Unity.Jobs;
+
+namespace ShrinkEventBus.Entities.Tests
+{
+    internal struct EcsPingEvent : IShrinkEvent
+    {
+        public int Value;
+    }
+
+    internal sealed class EcsPingSubscriber : IShrinkGeneratedSubscriber
+    {
+        public int Sum { get; private set; }
+
+        public IDisposable AttachGenerated(IShrinkBusResolver resolver, ShrinkBusKey? defaultBus = null)
+        {
+            return ShrinkGeneratedBinding.Subscribe<EcsPingEvent>(resolver, defaultBus,
+                string.Empty, this, OnPing, ShrinkEventPriority.Normal, 0, false);
+        }
+
+        private void OnPing(EcsPingEvent value) => Sum += value.Value;
+    }
+
+    [BurstCompile]
+    internal struct PostPingJob : IJob
+    {
+        public ShrinkEcsEventWriter<EcsPingEvent> Writer;
+
+        public void Execute()
+        {
+            Writer.Post(new EcsPingEvent { Value = 11 });
+        }
+    }
+
+    public sealed class ShrinkEcsEventQueueTests
+    {
+        [Test]
+        public void NativeWriterPlaybackUsesSameBusChannel()
+        {
+            using var host = new ShrinkEventBusHost();
+            var bus = host.CreateBus(ShrinkBusKey.World("tests"), ShrinkBusOptions.Inline());
+            var subscriber = new EcsPingSubscriber();
+            using var binding = host.Attach(subscriber, ShrinkBusKey.World("tests"));
+            using var queue = new ShrinkEcsEventQueue<EcsPingEvent>(Allocator.TempJob);
+
+            queue.Writer.Post(new EcsPingEvent { Value = 2 });
+            queue.Writer.Post(new EcsPingEvent { Value = 5 });
+            var played = queue.Playback(bus);
+
+            Assert.AreEqual(2, played);
+            Assert.AreEqual(7, subscriber.Sum);
+        }
+
+        [Test]
+        public void BurstJobWritesThenPlaybackUsesManagedBus()
+        {
+            using var host = new ShrinkEventBusHost();
+            var bus = host.CreateBus(ShrinkBusKey.World("burst-tests"), ShrinkBusOptions.Inline());
+            var subscriber = new EcsPingSubscriber();
+            using var binding = host.Attach(subscriber, ShrinkBusKey.World("burst-tests"));
+            using var queue = new ShrinkEcsEventQueue<EcsPingEvent>(Allocator.TempJob);
+            var job = new PostPingJob { Writer = queue.Writer };
+
+            job.Schedule().Complete();
+            var played = queue.Playback(bus);
+
+            Assert.AreEqual(1, played);
+            Assert.AreEqual(11, subscriber.Sum);
+        }
+    }
+}
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+{
+  "name": "ShrinkEventBus.Entities.Tests",
+  "rootNamespace": "ShrinkEventBus.Entities.Tests",
+  "references": [
+    "ShrinkEventBus.Entities.Runtime",
+    "ShrinkEventBus.Runtime",
+    "Unity.Burst",
+    "Unity.Collections",
+    "Unity.Jobs",
+    "UniTask",
+    "UnityEngine.TestRunner",
+    "UnityEditor.TestRunner"
+  ],
+  "includePlatforms": ["Editor"],
+  "excludePlatforms": [],
+  "allowUnsafeCode": false,
+  "overrideReferences": false,
+  "autoReferenced": false,
+  "defineConstraints": ["UNITY_INCLUDE_TESTS"]
+}
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+{
+  "name": "com.cneicy.shrink-eventbus-entities",
+  "version": "0.1.0",
+  "displayName": "ShrinkEventBus Entities",
+  "description": "Burst-safe NativeQueue writer and playback adapter for ShrinkEventBus.",
+  "unity": "2022.3",
+  "dependencies": {
+    "com.cneicy.shrink-eventbus": "2.0.0",
+    "com.unity.entities": "1.0.11"
+  },
+  "keywords": ["eventbus", "entities", "burst", "ecs"],
+  "author": {
+    "name": "cneicy",
+    "url": "https://github.com/cneicy"
+  }
+}
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