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105 lines
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<div class="titlepage"><div><div><h3 class="title">
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<a name="boost_asio.reference.MoveAcceptHandler"></a><a class="link" href="MoveAcceptHandler.html" title="Move accept handler requirements">Move accept handler
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requirements</a>
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</h3></div></div></div>
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<p>
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A move accept handler must meet the requirements for a <a class="link" href="Handler.html" title="Handlers">handler</a>.
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A value <code class="computeroutput">h</code> of a move accept handler class should work correctly
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in the expression <code class="computeroutput">h(ec, s)</code>, where <code class="computeroutput">ec</code> is an lvalue
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of type <code class="computeroutput">const error_code</code> and <code class="computeroutput">s</code> is an lvalue of
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the nested type <code class="computeroutput">Protocol::socket</code> for the type <code class="computeroutput">Protocol</code>
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of the socket class template.
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</p>
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<h5>
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<a name="boost_asio.reference.MoveAcceptHandler.h0"></a>
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<span class="phrase"><a name="boost_asio.reference.MoveAcceptHandler.examples"></a></span><a class="link" href="MoveAcceptHandler.html#boost_asio.reference.MoveAcceptHandler.examples">Examples</a>
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</h5>
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<p>
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A free function as a move accept handler:
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</p>
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<pre class="programlisting">void accept_handler(
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const boost::system::error_code& ec, boost::asio::ip::tcp::socket s)
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{
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...
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}
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</pre>
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<p>
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A move accept handler function object:
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</p>
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<pre class="programlisting">struct accept_handler
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{
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...
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void operator()(
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const boost::system::error_code& ec, boost::asio::ip::tcp::socket s)
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{
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...
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}
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...
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};
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</pre>
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<p>
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A lambda as a move accept handler:
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</p>
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<pre class="programlisting">acceptor.async_accept(...,
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[](const boost::system::error_code& ec, boost::asio::ip::tcp::socket s)
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{
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...
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});
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</pre>
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<p>
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A non-static class member function adapted to a move accept handler using
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<code class="computeroutput">std::bind()</code>:
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</p>
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<pre class="programlisting">void my_class::accept_handler(
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const boost::system::error_code& ec, boost::asio::ip::tcp::socket socket)
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{
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...
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}
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...
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boost::asio::async_accept(...,
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std::bind(&my_class::accept_handler,
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this, std::placeholders::_1,
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std::placeholders::_2));
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</pre>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
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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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