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---
version: v1.2.3
layout: refman
---
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<title>nn_term(3compat)</title>
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<h1>nn_term(3compat) Manual Page</h1>
<div id="toc" class="toc2">
<div id="toctitle">Table of Contents</div>
<ul class="sectlevel1">
<li><a href="#_synopsis">SYNOPSIS</a></li>
<li><a href="#_description">DESCRIPTION</a></li>
<li><a href="#_return_values">RETURN VALUES</a></li>
<li><a href="#_errors">ERRORS</a></li>
<li><a href="#_see_also">SEE ALSO</a></li>
</ul>
</div>
<h2 id="_name">NAME</h2>
<div class="sectionbody">
<p>nn_term - terminate library (compatible API)</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="content">
<pre class="pygments highlight"><code data-lang="c"><span></span><span class="tok-cp">#include</span> <span class="tok-cpf"><nanomsg/nn.h></span><span class="tok-cp"></span>
<span class="tok-kt">void</span> <span class="tok-nf">nn_term</span><span class="tok-p">(</span><span class="tok-kt">void</span><span class="tok-p">);</span></code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The <code>nn_term()</code> function closes any open sockets, and frees all resources
allocated by the library.
Any operations that are currently in progress will be terminated, and will
fail with error <code>EBADF</code> or <code>ETERM</code>.</p>
</div>
<div class="admonitionblock note">
<table>
<tr>
<td class="icon">
<i class="fa icon-note" title="Note"></i>
</td>
<td class="content">
This function is provided for API
<a href="nng_compat.3compat.html">compatibility</a> with legacy <em>libnanomsg</em>.
Consider using the relevant <a href="libnng.3.html">modern API</a> instead.
</td>
</tr>
</table>
</div>
<div class="admonitionblock important">
<table>
<tr>
<td class="icon">
<i class="fa icon-important" title="Important"></i>
</td>
<td class="content">
This function is not thread-safe, and is not suitable for use
in library calls.
The intended purpose of this is to clean up at application termination; for
example by registering this function with <code>atexit()</code>.
This can help prevent false leak reports caused when memory checkers notice
global resources allocated by the library.
Libraries should never use this function, but should explicitly close their
own sockets directly.
</td>
</tr>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_return_values">RETURN VALUES</h2>
<div class="sectionbody">
<div class="paragraph">
<p>None.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_errors">ERRORS</h2>
<div class="sectionbody">
<div class="paragraph">
<p>None.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph text-left">
<p><a href="nn_errno.3compat.html">nn_errno(3compat)</a>,
<a href="nn_socket.3compat.html">nn_socket(3compat)</a>,
<a href="nng_compat.3compat.html">nng_compat(3compat)</a>,
<a href="nng.7.html">nng(7)</a></p>
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