">  311</span><span class="comment">   *        would-block *will* make this throw.</span></div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">   * @param sync_sz</span></div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">   *        See above.  If null behavior undefined (assertion may trip).</span></div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>