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<title>s6: the s6-fdholder-delete program</title>
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<p>
<a href="index.html">s6</a><br />
<a href="http://skarnet.org/software/">Software</a><br />
<a href="http://skarnet.org/">skarnet.org</a>
</p>
<h1> The <tt>s6-fdholder-delete</tt> program </h1>
<p>
<tt>s6-fdholder-delete</tt> connects to a
<a href="s6-fdholderd.html">fd-holding daemon</a> listening on a
Unix domain socket, and deletes a file descriptor from the
daemon storage.
</p>
<h2> Interface </h2>
<pre>
s6-fdholder-delete [ -t <em>timeout</em> ] <em>path</em> <em>id</em>
</pre>
<ul>
<li> s6-fdholder-delete executes into <tt><a href="s6-ipcclient.html">s6-ipcclient</a> <em>path</em>
<a href="s6-fdholder-deletec.html">s6-fdholder-deletec</a> <em>id</em> </tt>.
It does nothing else: it is just a convenience program.
The <a href="s6-ipcclient.html">s6-ipcclient</a> program connects
to a Unix socket at <em>path</em>, and the
<a href="s6-fdholder-deletec.html">s6-fdholder-deletec</a> program
sends instruction to the server. </li>
<li> It should be used to connect to a
<a href="s6-fdholderd.html">s6-fdholderd</a> daemon, which will receive
the instruction to close and remove the file descriptor identified
by <em>id</em>. </li>
<li> It then exits 0. </li>
</ul>
<h2> Options </h2>
<ul>
<li> <tt>-t <em>timeout</em></tt> : if the operation cannot be
processed in <em>timeout</em> milliseconds, then fail with an error message.
Communications with the server should be near-instant, so this option is
only here to protect users against programming errors (connecting to the
wrong socket, for instance). </li>
</ul>
<h2> Usage example </h2>
<pre>
s6-fdholder-delete /service/fdholderd/s MYSOCKET
</pre>
<p>
will tell a
s6-fdholderd daemon listening on the <tt>/service/fdholderd/s</tt>
socket to close the filedescriptor identified as MYSOCKET.
</p>
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