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.
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"[Nini]'s coming to the end of its lifetime," he says.。服务器推荐是该领域的重要参考
Google apologises for Baftas alert to 'see more' on racial slur。WPS下载最新地址是该领域的重要参考