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<body class="manpage">
<div id="header">
<h1>
nn_pubsub(7) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nn_pubsub -
publish/subscribe scalability protocol
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="paragraph"><p><strong>#include &lt;nanomsg/nn.h&gt;</strong></p></div>
<div class="paragraph"><p><strong>#include &lt;nanomsg/pubsub.h&gt;</strong></p></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Broadcasts messages to multiple destinations.</p></div>
<div class="sect2">
<h3 id="_socket_types">Socket Types</h3>
<div class="dlist"><dl>
<dt class="hdlist1">
NN_PUB
</dt>
<dd>
<p>
This socket is used to distribute messages to multiple destinations.
Receive operation is not defined.
</p>
</dd>
<dt class="hdlist1">
NN_SUB
</dt>
<dd>
<p>
Receives messages from the publisher. Only messages that the socket is
subscribed to are received. When the socket is created there are no
subscriptions and thus no messages will be received. Send operation is
not defined on this socket. The socket can be connected to at most one peer.
</p>
</dd>
</dl></div>
</div>
<div class="sect2">
<h3 id="_socket_options">Socket Options</h3>
<div class="dlist"><dl>
<dt class="hdlist1">
NN_SUB_SUBSCRIBE
</dt>
<dd>
<p>
Defined on full SUB socket. Subscribes for a particular topic. Type of the
option is string.
</p>
</dd>
<dt class="hdlist1">
NN_SUB_UNSUBSCRIBE
</dt>
<dd>
<p>
Defined on full SUB socket. Unsubscribes from a particular topic. Type of
the option is string.
</p>
</dd>
</dl></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph"><p><a href="nn_bus.7.html">nn_bus(7)</a>
<a href="nn_reqrep.7.html">nn_reqrep(7)</a>
<a href="nn_pipeline.7.html">nn_pipeline(7)</a>
<a href="nn_survey.7.html">nn_survey(7)</a>
<a href="nn_pair.7.html">nn_pair(7)</a>
<a href="nanomsg.7.html">nanomsg(7)</a></p></div>
</div>
</div>
<div class="sect1">
<h2 id="_authors">AUTHORS</h2>
<div class="sectionbody">
<div class="paragraph"><p>Martin Sustrik &lt;<a href="mailto:sustrik@250bpm.com">sustrik@250bpm.com</a>&gt;</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
nanomsg 0.1-alpha<br />
Last updated 2013-08-19 13:34:31 CEST
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