The semantics around releasing locks with pending reads were also unclear for years. If you called read() but didn't await it, then called releaseLock(), what happened? The spec was recently clarified to cancel pending reads on lock release — but implementations varied, and code that relied on the previous unspecified behavior can break.
for each candidate in list of candidates，更多细节参见heLLoword翻译官方下载
。旺商聊官方下载是该领域的重要参考
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const bytesAvailable = totalBytes - offset;。safew官方版本下载对此有专业解读