</span>&nbsp;<span class="constructor">UnixLabels</span>.file_descr<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;domain_of_sockaddr&nbsp;:&nbsp;<span class="constructor">UnixLabels</span>.sockaddr&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">UnixLabels</span>.socket_domain<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;socketpair&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;?cloexec:bool&nbsp;<span class="keywordsign">-&gt;</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;domain:<span 