The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.
Мощный удар Израиля по Ирану попал на видео09:41
，更多细节参见搜狗输入法2026
task_type: feature|bugfix|refactor
Овечкин продлил безголевую серию в составе Вашингтона09:40