an class="string">"127.0.0.1"</span><span class="special">),</span> <span class="number">0</span><span class="special">));</span>
<span class="identifier">acceptor</span><span class="special">.</span><span class="identifier">listen</span><span class="special">(</span><span class="number">0</span><span class="special">);</span>

<span class="comment">// This blocks until a new incoming connection is established.</span>
<span class="comment">// Upon success, the function returns a new socket which is</span>
<