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Graph/lifecycle-uncoupled-async

AntiPattern

Async Work Outlives Lifecycle

lifecycle-uncoupled-async

Async tasks continue executing after a Component or GameObject is destroyed because raw Task.Delay (or unmanaged cancellation) isn’t tied to the engine lifecycle, causing leaked work, missed frame-loop termination, and inconsistent visual timing/state.

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Public graph metadata

Updated8/1/2026

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30 linked nodes

MATCHESSolution

Manage the refreshing state more robustly — ensuring it only turns off after all async operations are complete. Tension: remove the arbitrary timeout. Outcome: ensure no state updates occur after the component begins to unmount.

MATCHESSolution

You can configure your worker with a Workflow interceptor — Temporal workflows and activities. Tension: we don't have Sentry logging anymore. Outcome: catch all exception raised during your activities and workflow execution.

MATCHESSolution

delete the async from `fake_execute` — your `AsyncContextMock` needs to handle both use cases in your endpoint `await conn.execute()` and `async with conn.execute()`. Outcome: just make it a regular function so it returns your context manager directly, no coroutine wrapper.

MATCHESSolution

spawn it via `asyncio.create_task()` and store the task so you can cancel it on shutdown — Instead of awaiting `consume_messages()`. Outcome: store the task so you can cancel it on shutdown.

MATCHESSolution

single worker running async loop. Outcome: So you have a single worker running async loop and you block that loop.

MATCHESSolution

If you convert all operations to perform asynchronously (using `aiosqlite`) , the issue will be mitigated. — When a route in FastAPI is listed as asynchronous (`async def`). Tension: that doesn't fully solve the inherent single writer problem of Sqlite. Outcome: Here's a fully operational update of the FastAPI server logic:.

MATCHESSolution

python interpreter just pauses one task and looks at other — In your scenerio where you use asynchronous. Tension: it is not completly usesless. Outcome: Think it like a round-robin.

MATCHESSolution

Move the persistence/cleanup logic into code that runs at the end of the background task (or otherwise extend lifecycle explicitly for the background task), rather than relying on the request-scoped `asynccontextmanager` teardown for those updates.

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Change the engine async fixture from session scope to function scope (remove scope="session") so all async fixtures/tests run on the same event loop, preventing the cross-loop Future/Task error.

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Using `asyncio.sleep()` in a loop is perfectly fine. Tension: every time you `await` the sleep, you effectively yield control back to the event loop. Outcome: calling `asyncio.sleep(0)` does not sleep at all, but only yields control back to the event loop.

MATCHESSolution

any time you have an I/O bound process with lots of idle time — waiting for user input, waiting for a TLS handshake. Tension: wrapping it in an async task can let other code run.

MATCHESSolution

bound it with a "progress ceiling" — a process emitting bytes but making NO semantic progress. Tension: a process emitting bytes but making NO semantic progress (livelock) would be shielded forever. Outcome: re-arms recovery after a long no-progress window even while bytes flow.

MATCHESSolution

Thread a second, lower-level liveness signal into the classifier — the timestamp of the last raw stdout byte from the child. Tension: Dead socket = no bytes = livenessAge grows = still aborts (correct). Alive-but-quiet = bytes flowing = livenessAge fresh = NOT aborted.

MATCHESSolution

An async function was passed to useActionState.

MATCHESSolution

depending on your latency budget. Outcome: Same idea, but the state lives outside the process boundary.

MATCHESSolution

Try to to decouple thread creation from task execution. — The CPU maintains a queue and a pool of worker threads (only 3). Tension: Clients submit tasks (like your cpu.execute()). Outcome: Each worker takes a task from the queue, processes it, and picks the next.

MATCHESSolution

future.cancel(true); — httpHardTimeoutScheduler.schedule(() -> {. Tension: if (!future.isDone() && !future.isCancelled()). Outcome: keep your latency low on your side of the wire.

MATCHESSolution

after the system restarts. Tension: wouldn't it be a waste of DB space if I'm storing millions of tasks that I only ever need to process once. Outcome: store the last offset in cache and then continue processing data from the last checkpoint.

MATCHESSolution

foreach over GameObject.Components fails. Tension: ComponentList has no GetEnumerator. Outcome: foreach (var c in gameObject.Components.GetAll()) { }.

MATCHESSolution

Use Component.Task (TaskSource) for all async work inside components — inside components. Tension: it auto-cancels when the component is destroyed.

MATCHESSolution

Add TemporaryEffect to GameObjects that should auto-destroy after effects finish — In the scene editor: add TemporaryEffect component to your effect prefab. Outcome: BecomeOrphan = true: if parent is destroyed, detach and finish playing.

MATCHESSolution

after mutating the property. Tension: Per-component refresh is broken. Outcome: always refresh the whole GameObject.

MATCHESSolution

CollectSyncState() iterates all components, finds [Sync] properties without [Property], serializes them to JSON — in SaveSystem.cs. Tension: Use JSON serialization first, with a ByteStream/BytePack fallback for types that don't serialize cleanly to JSON. Outcome: RestoreSyncState() is called before RestoreNetworkOwnership() in the Load path.

MATCHESSolution

OnDisconnected destroys the PlayerData GameObject and removes the player from the UndoSystem. — GameManager implements INetworkListener. Tension: Clean up undo stacks. Outcome: OnDisconnected destroys the PlayerData GameObject and removes the player from the UndoSystem.

MATCHESSolution

call `body.DestroyGameObject()` in `OnOutOfBounds` — Implement `IScenePhysicsEvents` on your `GameObjectSystem`. Tension: prevents unbounded accumulation of out-of-world objects. Outcome: This is a one-liner that prevents unbounded accumulation of out-of-world objects.

MATCHESSolution

Capture a baseline in `ISceneLoadingEvents.OnLoad` — after `await Task.Yield()` to ensure all objects are spawned. Outcome: Use static fields to persist the baseline across `Game.ChangeScene()` calls.

MATCHESSolution

Use a two-level system: `ScheduleBase` (a sequence of tasks with a `ShouldCancel()` interrupt check) and `TaskBase` (a single atomic action with `OnStart/OnUpdate/OnEnd`). — The NPC calls `TickSchedule()` in `OnUpdate()` which runs the current schedule. Tension: When a task returns `Success`, the schedule advances to the next task. When `ShouldCancel()` returns true, the schedule returns `Interrupted` and the NPC can select a new schedule. Outcome: Built-in tasks: MoveTo, LookAt, Wait, Say, FireWeapon, PickUpProp, DropProp.

MATCHESSolution

CancellationTokenSource pattern allows cancelling mid-reload — In `OnReloadStart`. Tension: when switching weapons or firing. Outcome: cancel any existing reload, create a new CTS, set `isReloading = true`, then `await ReloadAsync(token)`.

MATCHESSolution

Cache in OnAwake — Key s&box performance patterns from the optimizer skill:. Tension: GetComponent every frame. Outcome: Physics work in OnFixedUpdate.

MATCHESSolution

Rebuilt App.tsx as the OracleController beat machine. Outcome: running the authored cascade arrest→anchor→recognition→locked on setTimeout timers.

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