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fix(tasks): bound per-session background work

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pku-xht
2026-08-11 16:23:05 +08:00
parent b6cd817aca
commit f32a51b284
46 changed files with 684 additions and 71 deletions
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docs/subsystems/tasks.md
+6 -5
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@@ -151,7 +151,7 @@ interface TaskRead {
## Service behavior
The abstract [`TaskService`](../../packages/tasks/tasks/src/index.ts) Service Definition specifies atomic `start`, caller-scoped `get` and `list`, `read`, `kill`, bounded `wait`, failure-isolated `onTaskDone` listeners, and when `attachSurface` becomes available; [`LocalTaskService`](../../packages/tasks/tasks-local/src/index.ts) is the process-local Service provider. Authorization compares owner sessions; owner cleanup selects the exact registered `Agent` instance. See [`dsh-tasks`](../../packages/tasks/tasks/README.md) for the Service Definition contract, [`dsh-tasks-local`](../../packages/tasks/tasks-local/README.md) for the registry lifecycle, and [`dsh-tool-tasks`](../../packages/tasks/tool-tasks/README.md) for the model-facing Consumer.
The abstract [`TaskService`](../../packages/tasks/tasks/src/index.ts) Service Definition specifies atomic `start`, caller-scoped `get` and `list`, `read`, `kill`, bounded `wait`, failure-isolated `onTaskDone` listeners, and when `attachSurface` becomes available; [`LocalTaskService`](../../packages/tasks/tasks-local/src/index.ts) is the process-local Service provider. Authorization compares owner sessions; owner cleanup and admission use the exact registered `Agent` instance. The local provider's positive-safe-integer `maxConcurrentTasksPerOwner` config defaults to `10` and counts `running` plus `stopping` records per exact owner, with one shared bucket for unowned tasks; terminal producer settlement releases capacity. See [`dsh-tasks`](../../packages/tasks/tasks/README.md) for the Service Definition contract, [`dsh-tasks-local`](../../packages/tasks/tasks-local/README.md) for the registry lifecycle and admission policy, and [`dsh-tool-tasks`](../../packages/tasks/tool-tasks/README.md) for the model-facing Consumer.
<!-- BEGIN GENERATED cordis-surface (gen-cordis-catalog.ts) — do not edit between markers -->
@@ -176,10 +176,11 @@ Implementations must honor these semantics:
```ts cordis-catalog
/**
* Preflight access, validation, and owner cleanup before starting and
* atomically registering work. A throwing starter leaves nothing registered;
* after it returns, registration cannot fail. Settlement records the outcome,
* notifies listeners, and releases waiters.
* Preflight access, validation, owner cleanup, and implementation-owned
* admission before starting and atomically registering work. Any preflight
* rejection leaves no task id or execution resource. A throwing starter
* leaves nothing registered; after it returns, registration cannot fail.
* Settlement records the outcome, notifies listeners, and releases waiters.
* @param spec - task identity, owner, and synchronous starter.
* @returns the registry-issued `<kind>-N` id.
*/