109 lines
4.9 KiB
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109 lines
4.9 KiB
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<html>
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<title>I/O control command requirements</title>
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table>
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<a accesskey="p" href="InternetProtocol.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="IoObjectService.html"><img src="../../next.png" alt="Next"></a>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="asio.reference.IoControlCommand"></a><a class="link" href="IoControlCommand.html" title="I/O control command requirements">I/O control command
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requirements</a>
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</h3></div></div></div>
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<p>
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A type <code class="computeroutput"><span class="identifier">X</span></code> meets the <code class="computeroutput"><span class="identifier">IoControlCommand</span></code> requirements if it satisfies
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the requirements listed below.
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</p>
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<p>
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In the table below, <code class="computeroutput"><span class="identifier">a</span></code> denotes
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a (possibly const) value of type <code class="computeroutput"><span class="identifier">X</span></code>,
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and <code class="computeroutput"><span class="identifier">b</span></code> denotes a value of
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type <code class="computeroutput"><span class="identifier">X</span></code>.
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</p>
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<div class="table">
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<a name="asio.reference.IoControlCommand.t0"></a><p class="title"><b>Table 22. IoControlCommand requirements for extensible implementations</b></p>
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<div class="table-contents"><table class="table" summary="IoControlCommand requirements for extensible implementations">
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<colgroup>
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<col>
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<col>
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<col>
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</colgroup>
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<thead><tr>
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<th>
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<p>
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expression
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</p>
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</th>
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<th>
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<p>
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type
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</p>
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</th>
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<th>
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<p>
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assertion/note<br> pre/post-conditions
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</p>
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</th>
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</tr></thead>
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<tbody>
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<tr>
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<td>
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<p>
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<code class="computeroutput"><span class="identifier">a</span><span class="special">.</span><span class="identifier">name</span><span class="special">()</span></code>
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</p>
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</td>
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<td>
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<p>
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<code class="computeroutput"><span class="keyword">int</span></code>
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</p>
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</td>
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<td>
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<p>
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Returns a value suitable for passing as the <span class="emphasis"><em>request</em></span>
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argument to <span class="emphasis"><em>POSIX</em></span> <a href="http://www.opengroup.org/onlinepubs/9699919799/functions/ioctl.html" target="_top"><code class="computeroutput"><span class="identifier">ioctl</span><span class="special">()</span></code></a>
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(or equivalent).
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<code class="computeroutput"><span class="identifier">b</span><span class="special">.</span><span class="identifier">data</span><span class="special">()</span></code>
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</p>
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</td>
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<td>
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<p>
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<code class="computeroutput"><span class="keyword">void</span><span class="special">*</span></code>
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</p>
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</td>
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<td>
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</td>
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</tr>
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</tbody>
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</table></div>
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</div>
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<br class="table-break">
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</div>
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<div class="copyright-footer">Copyright © 2003-2023 Christopher M. Kohlhoff<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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</p>
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</div>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="InternetProtocol.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="IoObjectService.html"><img src="../../next.png" alt="Next"></a>
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