Implement scheduling system with parallel execution support and dummy job systems

2026-08-07 12:14:02 +02:00
parent a0f2713fdc
commit 0132c1326d
14 changed files with 844 additions and 5 deletions
@@ -0,0 +1,47 @@
+using MoonTools.ECS;
+using Nerfed.Runtime.Scheduling;
+
+namespace Nerfed.Runtime.Systems.Synthetic;
+
+public sealed class DummyLongJobConsumerSystem : MoonTools.ECS.System, IParallelSystemMetadata
+{
+    private readonly JobSystem jobs;
+    private readonly DummyLongJobSharedState state;
+    private readonly bool requireCompletion;
+
+    public DummyLongJobConsumerSystem(
+        World world,
+        DummyLongJobSharedState state,
+        JobSystem jobs,
+        bool requireCompletion) : base(world)
+    {
+        this.state = state;
+        this.jobs = jobs;
+        this.requireCompletion = requireCompletion;
+    }
+
+    public string ScheduleName => nameof(DummyLongJobConsumerSystem);
+
+    // Consumer/apply stage is where structural world work should happen in real systems.
+    public SystemAccessDeclaration AccessDeclaration => SystemAccessDeclaration.Empty;
+
+    public override void Update(TimeSpan delta)
+    {
+        JobHandle handle = state.InFlight;
+        if (!handle.IsValid)
+        {
+            return;
+        }
+
+        if (!requireCompletion && !jobs.IsCompleted(handle))
+        {
+            return;
+        }
+
+        jobs.Wait(handle);
+        jobs.TryForget(handle);
+
+        state.InFlight = default;
+        state.ConsumeCount++;
+    }
+}