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27 <a name="boost_asio.reference.ssl__stream.async_handshake.overload1"></a><a class="link" href="overload1.html" title="ssl::stream::async_handshake (1 of 2 overloads)">ssl::stream::async_handshake
28           (1 of 2 overloads)</a>
29 </h5></div></div></div>
30 <p>
31             Start an asynchronous SSL handshake.
32           </p>
33 <pre class="programlisting">template&lt;
34     typename <a class="link" href="../../HandshakeHandler.html" title="SSL handshake handler requirements">HandshakeHandler</a> = <a class="link" href="../../asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>&gt;
35 <a class="link" href="../../asynchronous_operations.html#boost_asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> async_handshake(
36     handshake_type type,
37     HandshakeHandler &amp;&amp; handler = <a class="link" href="../../asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>);
38 </pre>
39 <p>
40             This function is used to asynchronously perform an SSL handshake on the
41             stream. This function call always returns immediately.
42           </p>
43 <h6>
44 <a name="boost_asio.reference.ssl__stream.async_handshake.overload1.h0"></a>
45             <span class="phrase"><a name="boost_asio.reference.ssl__stream.async_handshake.overload1.parameters"></a></span><a class="link" href="overload1.html#boost_asio.reference.ssl__stream.async_handshake.overload1.parameters">Parameters</a>
46           </h6>
47 <div class="variablelist">
48 <p class="title"><b></b></p>
49 <dl class="variablelist">
50 <dt><span class="term">type</span></dt>
51 <dd><p>
52                   The type of handshaking to be performed, i.e. as a client or as
53                   a server.
54                 </p></dd>
55 <dt><span class="term">handler</span></dt>
56 <dd>
57 <p>
58                   The handler to be called when the handshake operation completes.
59                   Copies will be made of the handler as required. The equivalent
60                   function signature of the handler must be:
61 </p>
62 <pre class="programlisting">void handler(
63   const boost::system::error_code&amp; error // Result of operation.
64 );
65 </pre>
66 <p>
67                 </p>
68 </dd>
69 </dl>
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