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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.，详情可参考heLLoword翻译官方下载
���[���}�K�W���̂��m�点。关于这个话题，谷歌浏览器【最新下载地址】提供了深入分析
inotify-tools-4.23.9.0-4.fc42.x86_64