"lineno">   41</span><span class="comment"> * sync_io::Native_handle_sender apply here.</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment"> *</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"> * @see sync_io::Native_handle_sender, an identical concept with 1 feature (native handle transmission) added.</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span cl