1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>async_connect</title> 5<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../boost_asio.html" title="Boost.Asio"> 8<link rel="up" href="../reference.html" title="Reference"> 9<link rel="prev" href="async_compose.html" title="async_compose"> 10<link rel="next" href="async_connect/overload1.html" title="async_connect (1 of 6 overloads)"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> 15<td align="center"><a href="../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="async_compose.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../boost_asio.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="async_connect/overload1.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h3 class="title"> 27<a name="boost_asio.reference.async_connect"></a><a class="link" href="async_connect.html" title="async_connect">async_connect</a> 28</h3></div></div></div> 29<p> 30 <a class="indexterm" name="boost_asio.indexterm.async_connect"></a> 31The <code class="computeroutput">async_connect</code> 32 function is a composed asynchronous operation that establishes a socket connection 33 by trying each endpoint in a sequence. 34 </p> 35<p> 36 Asynchronously establishes a socket connection by trying each endpoint in 37 a sequence. 38 </p> 39<pre class="programlisting">template< 40 typename <a class="link" href="Protocol.html" title="Protocol requirements">Protocol</a>, 41 typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>, 42 typename <a class="link" href="EndpointSequence.html" title="Endpoint sequence requirements">EndpointSequence</a>, 43 typename <a class="link" href="RangeConnectHandler.html" title="Range connect handler requirements">RangeConnectHandler</a> = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>> 44<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> <a class="link" href="async_connect/overload1.html" title="async_connect (1 of 6 overloads)">async_connect</a>( 45 basic_socket< Protocol, Executor > & s, 46 const EndpointSequence & endpoints, 47 RangeConnectHandler && handler = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>, 48 typename enable_if< is_endpoint_sequence< EndpointSequence >::value >::type * = 0); 49 <span class="emphasis"><em>» <a class="link" href="async_connect/overload1.html" title="async_connect (1 of 6 overloads)">more...</a></em></span> 50</pre> 51<p> 52 (Deprecated: Use range overload.) Asynchronously establishes a socket connection 53 by trying each endpoint in a sequence. 54 </p> 55<pre class="programlisting">template< 56 typename <a class="link" href="Protocol.html" title="Protocol requirements">Protocol</a>, 57 typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>, 58 typename Iterator, 59 typename <a class="link" href="IteratorConnectHandler.html" title="Iterator connect handler requirements">IteratorConnectHandler</a> = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>> 60<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> <a class="link" href="async_connect/overload2.html" title="async_connect (2 of 6 overloads)">async_connect</a>( 61 basic_socket< Protocol, Executor > & s, 62 Iterator begin, 63 IteratorConnectHandler && handler = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>, 64 typename enable_if<!is_endpoint_sequence< Iterator >::value >::type * = 0); 65 <span class="emphasis"><em>» <a class="link" href="async_connect/overload2.html" title="async_connect (2 of 6 overloads)">more...</a></em></span> 66</pre> 67<p> 68 Asynchronously establishes a socket connection by trying each endpoint in 69 a sequence. 70 </p> 71<pre class="programlisting">template< 72 typename <a class="link" href="Protocol.html" title="Protocol requirements">Protocol</a>, 73 typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>, 74 typename Iterator, 75 typename <a class="link" href="IteratorConnectHandler.html" title="Iterator connect handler requirements">IteratorConnectHandler</a> = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>> 76<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> <a class="link" href="async_connect/overload3.html" title="async_connect (3 of 6 overloads)">async_connect</a>( 77 basic_socket< Protocol, Executor > & s, 78 Iterator begin, 79 Iterator end, 80 IteratorConnectHandler && handler = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>); 81 <span class="emphasis"><em>» <a class="link" href="async_connect/overload3.html" title="async_connect (3 of 6 overloads)">more...</a></em></span> 82 83template< 84 typename <a class="link" href="Protocol.html" title="Protocol requirements">Protocol</a>, 85 typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>, 86 typename <a class="link" href="EndpointSequence.html" title="Endpoint sequence requirements">EndpointSequence</a>, 87 typename <a class="link" href="ConnectCondition.html" title="Connect condition requirements">ConnectCondition</a>, 88 typename <a class="link" href="RangeConnectHandler.html" title="Range connect handler requirements">RangeConnectHandler</a> = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>> 89<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> <a class="link" href="async_connect/overload4.html" title="async_connect (4 of 6 overloads)">async_connect</a>( 90 basic_socket< Protocol, Executor > & s, 91 const EndpointSequence & endpoints, 92 ConnectCondition connect_condition, 93 RangeConnectHandler && handler = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>, 94 typename enable_if< is_endpoint_sequence< EndpointSequence >::value >::type * = 0); 95 <span class="emphasis"><em>» <a class="link" href="async_connect/overload4.html" title="async_connect (4 of 6 overloads)">more...</a></em></span> 96</pre> 97<p> 98 (Deprecated: Use range overload.) Asynchronously establishes a socket connection 99 by trying each endpoint in a sequence. 100 </p> 101<pre class="programlisting">template< 102 typename <a class="link" href="Protocol.html" title="Protocol requirements">Protocol</a>, 103 typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>, 104 typename Iterator, 105 typename <a class="link" href="ConnectCondition.html" title="Connect condition requirements">ConnectCondition</a>, 106 typename <a class="link" href="IteratorConnectHandler.html" title="Iterator connect handler requirements">IteratorConnectHandler</a> = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>> 107<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> <a class="link" href="async_connect/overload5.html" title="async_connect (5 of 6 overloads)">async_connect</a>( 108 basic_socket< Protocol, Executor > & s, 109 Iterator begin, 110 ConnectCondition connect_condition, 111 IteratorConnectHandler && handler = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>, 112 typename enable_if<!is_endpoint_sequence< Iterator >::value >::type * = 0); 113 <span class="emphasis"><em>» <a class="link" href="async_connect/overload5.html" title="async_connect (5 of 6 overloads)">more...</a></em></span> 114</pre> 115<p> 116 Asynchronously establishes a socket connection by trying each endpoint in 117 a sequence. 118 </p> 119<pre class="programlisting">template< 120 typename <a class="link" href="Protocol.html" title="Protocol requirements">Protocol</a>, 121 typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>, 122 typename Iterator, 123 typename <a class="link" href="ConnectCondition.html" title="Connect condition requirements">ConnectCondition</a>, 124 typename <a class="link" href="IteratorConnectHandler.html" title="Iterator connect handler requirements">IteratorConnectHandler</a> = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>> 125<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> <a class="link" href="async_connect/overload6.html" title="async_connect (6 of 6 overloads)">async_connect</a>( 126 basic_socket< Protocol, Executor > & s, 127 Iterator begin, 128 Iterator end, 129 ConnectCondition connect_condition, 130 IteratorConnectHandler && handler = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>); 131 <span class="emphasis"><em>» <a class="link" href="async_connect/overload6.html" title="async_connect (6 of 6 overloads)">more...</a></em></span> 132</pre> 133<h5> 134<a name="boost_asio.reference.async_connect.h0"></a> 135 <span class="phrase"><a name="boost_asio.reference.async_connect.requirements"></a></span><a class="link" href="async_connect.html#boost_asio.reference.async_connect.requirements">Requirements</a> 136 </h5> 137<p> 138 <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/connect.hpp</code> 139 </p> 140<p> 141 <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code> 142 </p> 143</div> 144<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 145<td align="left"></td> 146<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 147 Kohlhoff<p> 148 Distributed under the Boost Software License, Version 1.0. (See accompanying 149 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>) 150 </p> 151</div></td> 152</tr></table> 153<hr> 154<div class="spirit-nav"> 155<a accesskey="p" href="async_compose.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../boost_asio.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="async_connect/overload1.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 156</div> 157</body> 158</html> 159
