e_handle()</a> doc header.</dd></dl>
<p>boost.asio's <code>async_write()</code> free function is generically capable of sending a sequence of 1+ buffers on a connected stream socket, continuing until either the entire sequence is fully sent; or an error (not counting would-block, which just means keep trying to make progress when possible). The capability we add is the native handle in <code>payload_hndl</code> is also transmitted. Certain aspects of <code>async_write()</code> are not included in the presen