man/v1.3.2/nng_aio_get_input.3.html


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---
version: v1.3.2
layout: manpage_v2
---
<h1>nng_aio_get_input(3)</h1>
<div class="sect1">
<h2 id="_name">NAME</h2>
<div class="sectionbody">
<div class="paragraph">
<p>nng_aio_get_input - return input parameter</p>
</div>
</div>
</div>
<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 class="tok-cp">#include</span> <span class="tok-cpf">&lt;nng/nng.h&gt;</span><span class="tok-cp">
</span><span class="tok-cp"></span>
<span class="tok-kt">void</span> <span class="tok-o">*</span><span class="tok-nf">nng_aio_get_input</span><span class="tok-p">(</span><span class="tok-n">nng_aio</span> <span class="tok-o">*</span><span class="tok-n">aio</span><span class="tok-p">,</span> <span class="tok-kt">unsigned</span> <span class="tok-kt">int</span> <span class="tok-n">index</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>nng_aio_get_input()</code> function returns the value of the input parameter
previously set at <em>index</em> on <em>aio</em> with the
<a href="nng_aio_set_input.3.html"><code>nng_aio_set_input()</code></a> function.</p>
</div>
<div class="paragraph">
<p>The valid values of <em>index</em> range from zero (0) to three (3), as no operation
currently defined can accept more than four parameters.
(This limit could increase in the future.)
If the index supplied is outside of this range,
or of the input parameter was not previously set, then <code>NULL</code> is returned.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_return_values">RETURN VALUES</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Value previously set, or <code>NULL</code>.</p>
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<div class="sect1">
<h2 id="_errors">ERRORS</h2>
<div class="sectionbody">
<div class="paragraph">
<p>None.</p>
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</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph text-left">
<p><a href="nng_aio_alloc.3.html">nng_aio_alloc(3)</a>,
<a href="nng_aio_get_output.3.html">nng_aio_get_output(3)</a>,
<a href="nng_aio_set_input.3.html">nng_aio_set_input(3)</a>,
<a href="nng_aio_result.3.html">nng_aio_result(3)</a>,
<a href="nng_aio.5.html">nng_aio(5)</a>,
<a href="nng.7.html">nng(7)</a></p>
</div>
</div>
</div>