127 lines
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HTML
127 lines
5.4 KiB
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<title>cancellation_state</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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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="asio.reference.cancellation_state"></a><a class="link" href="cancellation_state.html" title="cancellation_state">cancellation_state</a>
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</h3></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.cancellation_state"></a>
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</p>
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<p>
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A cancellation state is used for chaining signals and slots in compositions.
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</p>
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<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">cancellation_state</span>
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</pre>
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<h5>
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<a name="asio.reference.cancellation_state.h0"></a>
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<span><a name="asio.reference.cancellation_state.member_functions"></a></span><a class="link" href="cancellation_state.html#asio.reference.cancellation_state.member_functions">Member
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Functions</a>
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</h5>
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<div class="informaltable"><table class="table">
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Name
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<p>
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Description
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</tr></thead>
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<a class="link" href="cancellation_state/cancellation_state.html" title="cancellation_state::cancellation_state"><span class="bold"><strong>cancellation_state</strong></span></a> <span class="silver">[constructor]</span>
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</p>
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<td>
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<p>
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Construct a disconnected cancellation state. <br> <span class="silver"> —</span><br> Construct
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and attach to a parent slot to create a new child slot.
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</p>
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<td>
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<p>
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<a class="link" href="cancellation_state/cancelled.html" title="cancellation_state::cancelled"><span class="bold"><strong>cancelled</strong></span></a>
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<td>
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<p>
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Returns the cancellation types that have been triggered.
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</p>
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</td>
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</tr>
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<td>
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<p>
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<a class="link" href="cancellation_state/clear.html" title="cancellation_state::clear"><span class="bold"><strong>clear</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Clears the specified cancellation types, if they have been triggered.
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</p>
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</tr>
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<tr>
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<p>
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<a class="link" href="cancellation_state/slot.html" title="cancellation_state::slot"><span class="bold"><strong>slot</strong></span></a>
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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 the single child slot associated with the state.
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</p>
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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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<h5>
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<a name="asio.reference.cancellation_state.h1"></a>
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<span><a name="asio.reference.cancellation_state.requirements"></a></span><a class="link" href="cancellation_state.html#asio.reference.cancellation_state.requirements">Requirements</a>
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</h5>
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<p>
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<span class="emphasis"><em>Header: </em></span><code class="literal">asio/cancellation_state.hpp</code>
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</p>
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<p>
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<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
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</p>
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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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