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.
On the fifth loop iteration, the backing store of size 4 is full, and，推荐阅读谷歌浏览器【最新下载地址】获取更多信息
09:27, 28 февраля 2026Силовые структуры。关于这个话题，搜狗输入法下载提供了深入分析
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