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</head>
<body class="manpage">
<div id="header">
<h1>nn_inproc(7) Manual Page</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nn_inproc - in-process transport mechanism</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/inproc.h&gt;</strong></p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph">
<p>In-process transport allows to send messages between threads or modules inside a
process. In-process address is an arbitrary case-sensitive string preceded by
<em>inproc://</em> protocol specifier. All in-process addresses are visible from any
module within the process. They are not visible from outside of the process.</p>
</div>
<div class="paragraph">
<p>The nature of in-process transport makes it easy to pass pointers between
threads instead of actual data. This is, however, considered a bad application
design and violates the scalable share-nothing architecture. If you do pass
pointers among threads, synchronising thread access to shared data becomes
your responsibility. Such design also prevents moving the thread into different
process or machine once the need arises. As a rule of the thumb, don&#8217;t pass
pointers among threads unless you know what you are doing.</p>
</div>
<div class="paragraph">
<p>The overall buffer size for an inproc connection is determined by NN_RCVBUF
socket option on the receiving end of the connection. NN_SNDBUF socket option
is ignored. In addition to the buffer, one message of arbitrary size will fit
into the buffer. That way, even messages larger than the buffer can be
transfered via inproc connection.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_example">EXAMPLE</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="content">
<pre>nn_bind (s1, "inproc://test");
nn_connect (s2, "inproc://test);</pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph">
<p><a href="nn_ipc.7.html">nn_ipc(7)</a>
<a href="nn_tcp.7.html">nn_tcp(7)</a>
<a href="nn_bind.3.html">nn_bind(3)</a>
<a href="nn_connect.3.html">nn_connect(3)</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><a href="mailto:sustrik@250bpm.com">Martin Sustrik</a></p>
</div>
</div>
</div>
</div>
<div id="footer">
<div id="footer-text">
nanomsg 1.0.0<br>
Last updated 2016-06-03 09:44:18 PDT
</div>
</div>
</body>