title: Setting listen() backlog to 0
body: <p>When listening on a socket, I would ideally like to limit the backlog to zero, i.e.</p>
  
  <pre><code>listen( socket, 0 );
  </code></pre>
  
  <p>However, based on the following post, <a href="https://stackoverflow.com/questions/5111040/listen-ignores-the-backlog-argument/5111841#5111841">listen() ignores the backlog argument?</a>, this wouldn't work. Is there any way I can reliably achieve a backlog of 0?</p>