88 lines
3.3 KiB
Plaintext
88 lines
3.3 KiB
Plaintext
// 协作任务示例：两个 ui.spawn 各自保留执行帧，worker 按指令量子轮转推进。
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// 这里刻意重复增量语句，方便看到暂停点；取消不回滚已经发生的 steps 写入，单个原生调用仍是原子边界。
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// 每个实例有独立 steps 状态，两个任务不会把局部帧或计数存储混在一起。
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class CooperativeWork {
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steps: Object
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// 普通零参数方法被 spawn 调度后可跨量子继续；每条 increment 更新同一实例的计数。
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// 连续语句无需手工 yield，VM 按累计预算暂停，恢复时不会从第一条重放。
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function run(self: CooperativeWork): Unit {
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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self.steps.increment()
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}
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}
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// 创建两个独立 owner，虽然 key 都叫 work，也不会相互替换；owner/key 组合才是任务身份。
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left = CooperativeWork(ui.state(0))
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right = CooperativeWork(ui.state(0))
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leftTask = ui.spawn(left,"work",left.run)
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rightTask = ui.spawn(right,"work",right.run)
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// 状态文字绑定到 Task.status，业务进度可在 Console 查询 left/right 的 steps.value。
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leftStatus = TextBlock("")
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rightStatus = TextBlock("")
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leftStatus.bind("text",leftTask.status)
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rightStatus.bind("text",rightTask.status)
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page = Page()
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page.title = "独立暂停调用"
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page.render(Column(24,16,TextBlock("两个任务分别保存执行帧；在 REPL 查看 left.steps.value / right.steps.value",2),leftStatus,rightStatus))
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