  The program must ensure that the stream performs no other reads until
            this operation completes.
          </p>
<p>
            Received message data, if any, is written to the buffer sequence. The
            functions <a class="link" href="../got_binary.html" title="websocket::stream::got_binary"><code class="computeroutput"><span class="identifier">websocket</span><span class="special">::</span><span class="identifier">stream</span><span class="special">::</span><span class="identifier">got_