an>       <span class="comment">// A buffer holding chunk body data</span>
        <span class="identifier">error_code</span><span class="special">&amp;</span> <span class="identifier">ec</span><span class="special">)</span>         <span class="comment">// We can set this to indicate an error</span>
    <span class="special">{</span>
        <span class="comment">// If this is the last piece of the chunk body,</span>
        <span class="comment">// set the error so that the call to `read` returns</span>
 