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<body class="manpage">
<div id="header">
<h1>
zmq_disconnect(3) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>zmq_disconnect -
Disconnect a socket from an endpoint
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="paragraph"><p><strong>int zmq_disconnect (void <em>*socket</em>, const char <em>*endpoint</em>);</strong></p></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>The <em>zmq_disconnect()</em> function shall disconnect a socket specified
by the <em>socket</em> argument from the endpoint specified by the <em>endpoint</em>
argument. Note the actual disconnect system call might occur at a later time.</p></div>
<div class="paragraph"><p>Upon disconnection the will also stop receiving messages originating from
this endpoint. Moreover, the socket will no longuer be able
to queue outgoing messages to this endpoint. The outgoing message queue
associated with the endpoint will be discarded. However, if the socket’s linger
period is non-zero, libzmq will still attempt to transmit these discarded messages,
until the linger period expires.</p></div>
<div class="paragraph"><p>The <em>endpoint</em> argument is as described in <a href="zmq_connect.html">zmq_connect(3)</a></p></div>
<div class="admonitionblock">
<table><tr>
<td class="icon">
<div class="title">Note</div>
</td>
<td class="content">The default setting of <em>ZMQ_LINGER</em> does not discard unsent messages;
this behaviour may cause the application to block when calling <em>zmq_ctx_term()</em>.
For details refer to <a href="zmq_setsockopt.html">zmq_setsockopt(3)</a> and <a href="zmq_ctx_term.html">zmq_ctx_term(3)</a>.</td>
</tr></table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_return_value">RETURN VALUE</h2>
<div class="sectionbody">
<div class="paragraph"><p>The <em>zmq_disconnect()</em> function shall return zero if successful. Otherwise it
shall return <code>-1</code> and set <em>errno</em> to one of the values defined below.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_errors">ERRORS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
<strong>EINVAL</strong>
</dt>
<dd>
<p>
The endpoint supplied is invalid.
</p>
</dd>
<dt class="hdlist1">
<strong>ETERM</strong>
</dt>
<dd>
<p>
The ØMQ <em>context</em> associated with the specified <em>socket</em> was terminated.
</p>
</dd>
<dt class="hdlist1">
<strong>ENOTSOCK</strong>
</dt>
<dd>
<p>
The provided <em>socket</em> was invalid.
</p>
</dd>
<dt class="hdlist1">
<strong>ENOENT</strong>
</dt>
<dd>
<p>
The provided endpoint is not in use by the socket.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_example">EXAMPLE</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="title">Connecting a subscriber socket to an in-process and a TCP transport</div>
<div class="content">
<pre><code>/* Create a ZMQ_SUB socket */
void *socket = zmq_socket (context, ZMQ_SUB);
assert (socket);
/* Connect it to the host server001, port 5555 using a TCP transport */
rc = zmq_connect (socket, "tcp://server001:5555");
assert (rc == 0);
/* Disconnect from the previously connected endpoint */
rc = zmq_disconnect (socket, "tcp://server001:5555");
assert (rc == 0);</code></pre>
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph"><p><a href="zmq_connect.html">zmq_connect(3)</a>
<a href="zmq_socket.html">zmq_socket(3)</a>
<a href="zmq.html">zmq(7)</a></p></div>
</div>
</div>
<div class="sect1">
<h2 id="_authors">AUTHORS</h2>
<div class="sectionbody">
<div class="paragraph"><p>This page was written by the ØMQ community. To make a change please
read the ØMQ Contribution Policy at <a href="http://www.zeromq.org/docs:contributing">http://www.zeromq.org/docs:contributing</a>.</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
ØMQ 4.3.2<br />
Last updated 2019-07-08 16:19:27 UTC
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