Фото: Maxim Shemetov / Reuters
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.。Line官方版本下载是该领域的重要参考
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Standard Digital。WPS官方版本下载对此有专业解读