     <span class="emphasis"><em>Inherited from socket_base.</em></span>
        </p>
<p>
          <a class="indexterm" name="idp49856704"></a> 
(Deprecated: Use non_blocking().) IO
          control command to set the blocking mode of the socket.
        </p>
<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <span class="identifier">non_blocking_io</span><span class="special">;</span>
</pre>
<p>
          Implements the FIONBIO IO contro