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.
Трамп высказался о непростом решении по Ирану09:14
。safew官方下载是该领域的重要参考
const blocking = Stream.push({ highWaterMark: 2, backpressure: 'block' });，推荐阅读WPS官方版本下载获取更多信息
Последние новости，这一点在一键获取谷歌浏览器下载中也有详细论述
Фото: Tingshu Wang / Reuters