[DEV] add v1.76.0

This commit is contained in:
2021-10-05 21:37:46 +02:00
parent a97e9ae7d4
commit d0115b733d
45133 changed files with 4744437 additions and 1026325 deletions

View File

@@ -0,0 +1,142 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>async_connect (1 of 6 overloads)</title>
<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../../../boost_asio.html" title="Boost.Asio">
<link rel="up" href="../async_connect.html" title="async_connect">
<link rel="prev" href="../async_connect.html" title="async_connect">
<link rel="next" href="overload2.html" title="async_connect (2 of 6 overloads)">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
<td align="center"><a href="../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="../async_connect.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload2.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_asio.reference.async_connect.overload1"></a><a class="link" href="overload1.html" title="async_connect (1 of 6 overloads)">async_connect
(1 of 6 overloads)</a>
</h4></div></div></div>
<p>
Asynchronously establishes a socket connection by trying each endpoint
in a sequence.
</p>
<pre class="programlisting">template&lt;
typename <a class="link" href="../Protocol.html" title="Protocol requirements">Protocol</a>,
typename <a class="link" href="../Executor1.html" title="Executor requirements">Executor</a>,
typename <a class="link" href="../EndpointSequence.html" title="Endpoint sequence requirements">EndpointSequence</a>,
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>&gt;
<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_connect(
basic_socket&lt; Protocol, Executor &gt; &amp; s,
const EndpointSequence &amp; endpoints,
RangeConnectHandler &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>,
typename constraint&lt; is_endpoint_sequence&lt; EndpointSequence &gt;::value &gt;::type = 0);
</pre>
<p>
This function attempts to connect a socket to one of a sequence of endpoints.
It does this by repeated calls to the socket's <code class="computeroutput">async_connect</code>
member function, once for each endpoint in the sequence, until a connection
is successfully established.
</p>
<h6>
<a name="boost_asio.reference.async_connect.overload1.h0"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload1.parameters"></a></span><a class="link" href="overload1.html#boost_asio.reference.async_connect.overload1.parameters">Parameters</a>
</h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term">s</span></dt>
<dd><p>
The socket to be connected. If the socket is already open, it will
be closed.
</p></dd>
<dt><span class="term">endpoints</span></dt>
<dd><p>
A sequence of endpoints.
</p></dd>
<dt><span class="term">handler</span></dt>
<dd>
<p>
The handler to be called when the connect operation completes. Copies
will be made of the handler as required. The function signature of
the handler must be:
</p>
<pre class="programlisting">void handler(
// Result of operation. if the sequence is empty, set to
// boost::asio::error::not_found. Otherwise, contains the
// error from the last connection attempt.
const boost::system::error_code&amp; error,
// On success, the successfully connected endpoint.
// Otherwise, a default-constructed endpoint.
const typename Protocol::endpoint&amp; endpoint
);
</pre>
<p>
Regardless of whether the asynchronous operation completes immediately
or not, the handler will not be invoked from within this function.
On immediate completion, invocation of the handler will be performed
in a manner equivalent to using <a class="link" href="../post.html" title="post"><code class="computeroutput">post</code></a>.
</p>
</dd>
</dl>
</div>
<h6>
<a name="boost_asio.reference.async_connect.overload1.h1"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload1.example"></a></span><a class="link" href="overload1.html#boost_asio.reference.async_connect.overload1.example">Example</a>
</h6>
<pre class="programlisting">tcp::resolver r(my_context);
tcp::resolver::query q("host", "service");
tcp::socket s(my_context);
// ...
r.async_resolve(q, resolve_handler);
// ...
void resolve_handler(
const boost::system::error_code&amp; ec,
tcp::resolver::results_type results)
{
if (!ec)
{
boost::asio::async_connect(s, results, connect_handler);
}
}
// ...
void connect_handler(
const boost::system::error_code&amp; ec,
const tcp::endpoint&amp; endpoint)
{
// ...
}
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="../async_connect.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload2.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>

View File

@@ -0,0 +1,118 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>async_connect (2 of 6 overloads)</title>
<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../../../boost_asio.html" title="Boost.Asio">
<link rel="up" href="../async_connect.html" title="async_connect">
<link rel="prev" href="overload1.html" title="async_connect (1 of 6 overloads)">
<link rel="next" href="overload3.html" title="async_connect (3 of 6 overloads)">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
<td align="center"><a href="../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload1.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload3.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_asio.reference.async_connect.overload2"></a><a class="link" href="overload2.html" title="async_connect (2 of 6 overloads)">async_connect
(2 of 6 overloads)</a>
</h4></div></div></div>
<p>
(Deprecated: Use range overload.) Asynchronously establishes a socket connection
by trying each endpoint in a sequence.
</p>
<pre class="programlisting">template&lt;
typename <a class="link" href="../Protocol.html" title="Protocol requirements">Protocol</a>,
typename <a class="link" href="../Executor1.html" title="Executor requirements">Executor</a>,
typename Iterator,
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>&gt;
<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_connect(
basic_socket&lt; Protocol, Executor &gt; &amp; s,
Iterator begin,
IteratorConnectHandler &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>,
typename constraint&lt;!is_endpoint_sequence&lt; Iterator &gt;::value &gt;::type = 0);
</pre>
<p>
This function attempts to connect a socket to one of a sequence of endpoints.
It does this by repeated calls to the socket's <code class="computeroutput">async_connect</code>
member function, once for each endpoint in the sequence, until a connection
is successfully established.
</p>
<h6>
<a name="boost_asio.reference.async_connect.overload2.h0"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload2.parameters"></a></span><a class="link" href="overload2.html#boost_asio.reference.async_connect.overload2.parameters">Parameters</a>
</h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term">s</span></dt>
<dd><p>
The socket to be connected. If the socket is already open, it will
be closed.
</p></dd>
<dt><span class="term">begin</span></dt>
<dd><p>
An iterator pointing to the start of a sequence of endpoints.
</p></dd>
<dt><span class="term">handler</span></dt>
<dd>
<p>
The handler to be called when the connect operation completes. Copies
will be made of the handler as required. The function signature of
the handler must be:
</p>
<pre class="programlisting">void handler(
// Result of operation. if the sequence is empty, set to
// boost::asio::error::not_found. Otherwise, contains the
// error from the last connection attempt.
const boost::system::error_code&amp; error,
// On success, an iterator denoting the successfully
// connected endpoint. Otherwise, the end iterator.
Iterator iterator
);
</pre>
<p>
Regardless of whether the asynchronous operation completes immediately
or not, the handler will not be invoked from within this function.
On immediate completion, invocation of the handler will be performed
in a manner equivalent to using <a class="link" href="../post.html" title="post"><code class="computeroutput">post</code></a>.
</p>
</dd>
</dl>
</div>
<h6>
<a name="boost_asio.reference.async_connect.overload2.h1"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload2.remarks"></a></span><a class="link" href="overload2.html#boost_asio.reference.async_connect.overload2.remarks">Remarks</a>
</h6>
<p>
This overload assumes that a default constructed object of type <code class="computeroutput">Iterator</code>
represents the end of the sequence. This is a valid assumption for iterator
types such as <code class="computeroutput">boost::asio::ip::tcp::resolver::iterator</code>.
</p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload1.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload3.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>

View File

@@ -0,0 +1,132 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>async_connect (3 of 6 overloads)</title>
<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../../../boost_asio.html" title="Boost.Asio">
<link rel="up" href="../async_connect.html" title="async_connect">
<link rel="prev" href="overload2.html" title="async_connect (2 of 6 overloads)">
<link rel="next" href="overload4.html" title="async_connect (4 of 6 overloads)">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
<td align="center"><a href="../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload2.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload4.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_asio.reference.async_connect.overload3"></a><a class="link" href="overload3.html" title="async_connect (3 of 6 overloads)">async_connect
(3 of 6 overloads)</a>
</h4></div></div></div>
<p>
Asynchronously establishes a socket connection by trying each endpoint
in a sequence.
</p>
<pre class="programlisting">template&lt;
typename <a class="link" href="../Protocol.html" title="Protocol requirements">Protocol</a>,
typename <a class="link" href="../Executor1.html" title="Executor requirements">Executor</a>,
typename Iterator,
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>&gt;
<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_connect(
basic_socket&lt; Protocol, Executor &gt; &amp; s,
Iterator begin,
Iterator end,
IteratorConnectHandler &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>);
</pre>
<p>
This function attempts to connect a socket to one of a sequence of endpoints.
It does this by repeated calls to the socket's <code class="computeroutput">async_connect</code>
member function, once for each endpoint in the sequence, until a connection
is successfully established.
</p>
<h6>
<a name="boost_asio.reference.async_connect.overload3.h0"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload3.parameters"></a></span><a class="link" href="overload3.html#boost_asio.reference.async_connect.overload3.parameters">Parameters</a>
</h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term">s</span></dt>
<dd><p>
The socket to be connected. If the socket is already open, it will
be closed.
</p></dd>
<dt><span class="term">begin</span></dt>
<dd><p>
An iterator pointing to the start of a sequence of endpoints.
</p></dd>
<dt><span class="term">end</span></dt>
<dd><p>
An iterator pointing to the end of a sequence of endpoints.
</p></dd>
<dt><span class="term">handler</span></dt>
<dd>
<p>
The handler to be called when the connect operation completes. Copies
will be made of the handler as required. The function signature of
the handler must be:
</p>
<pre class="programlisting">void handler(
// Result of operation. if the sequence is empty, set to
// boost::asio::error::not_found. Otherwise, contains the
// error from the last connection attempt.
const boost::system::error_code&amp; error,
// On success, an iterator denoting the successfully
// connected endpoint. Otherwise, the end iterator.
Iterator iterator
);
</pre>
<p>
Regardless of whether the asynchronous operation completes immediately
or not, the handler will not be invoked from within this function.
On immediate completion, invocation of the handler will be performed
in a manner equivalent to using <a class="link" href="../post.html" title="post"><code class="computeroutput">post</code></a>.
</p>
</dd>
</dl>
</div>
<h6>
<a name="boost_asio.reference.async_connect.overload3.h1"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload3.example"></a></span><a class="link" href="overload3.html#boost_asio.reference.async_connect.overload3.example">Example</a>
</h6>
<pre class="programlisting">std::vector&lt;tcp::endpoint&gt; endpoints = ...;
tcp::socket s(my_context);
boost::asio::async_connect(s,
endpoints.begin(), endpoints.end(),
connect_handler);
// ...
void connect_handler(
const boost::system::error_code&amp; ec,
std::vector&lt;tcp::endpoint&gt;::iterator i)
{
// ...
}
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload2.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload4.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>

View File

@@ -0,0 +1,192 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>async_connect (4 of 6 overloads)</title>
<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../../../boost_asio.html" title="Boost.Asio">
<link rel="up" href="../async_connect.html" title="async_connect">
<link rel="prev" href="overload3.html" title="async_connect (3 of 6 overloads)">
<link rel="next" href="overload5.html" title="async_connect (5 of 6 overloads)">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
<td align="center"><a href="../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload3.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload5.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_asio.reference.async_connect.overload4"></a><a class="link" href="overload4.html" title="async_connect (4 of 6 overloads)">async_connect
(4 of 6 overloads)</a>
</h4></div></div></div>
<p>
Asynchronously establishes a socket connection by trying each endpoint
in a sequence.
</p>
<pre class="programlisting">template&lt;
typename <a class="link" href="../Protocol.html" title="Protocol requirements">Protocol</a>,
typename <a class="link" href="../Executor1.html" title="Executor requirements">Executor</a>,
typename <a class="link" href="../EndpointSequence.html" title="Endpoint sequence requirements">EndpointSequence</a>,
typename <a class="link" href="../ConnectCondition.html" title="Connect condition requirements">ConnectCondition</a>,
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>&gt;
<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_connect(
basic_socket&lt; Protocol, Executor &gt; &amp; s,
const EndpointSequence &amp; endpoints,
ConnectCondition connect_condition,
RangeConnectHandler &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>,
typename constraint&lt; is_endpoint_sequence&lt; EndpointSequence &gt;::value &gt;::type = 0);
</pre>
<p>
This function attempts to connect a socket to one of a sequence of endpoints.
It does this by repeated calls to the socket's <code class="computeroutput">async_connect</code>
member function, once for each endpoint in the sequence, until a connection
is successfully established.
</p>
<h6>
<a name="boost_asio.reference.async_connect.overload4.h0"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload4.parameters"></a></span><a class="link" href="overload4.html#boost_asio.reference.async_connect.overload4.parameters">Parameters</a>
</h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term">s</span></dt>
<dd><p>
The socket to be connected. If the socket is already open, it will
be closed.
</p></dd>
<dt><span class="term">endpoints</span></dt>
<dd><p>
A sequence of endpoints.
</p></dd>
<dt><span class="term">connect_condition</span></dt>
<dd>
<p>
A function object that is called prior to each connection attempt.
The signature of the function object must be:
</p>
<pre class="programlisting">bool connect_condition(
const boost::system::error_code&amp; ec,
const typename Protocol::endpoint&amp; next);
</pre>
<p>
The <code class="computeroutput">ec</code> parameter contains the result from the most recent
connect operation. Before the first connection attempt, <code class="computeroutput">ec</code>
is always set to indicate success. The <code class="computeroutput">next</code> parameter
is the next endpoint to be tried. The function object should return
true if the next endpoint should be tried, and false if it should
be skipped.
</p>
</dd>
<dt><span class="term">handler</span></dt>
<dd>
<p>
The handler to be called when the connect operation completes. Copies
will be made of the handler as required. The function signature of
the handler must be:
</p>
<pre class="programlisting">void handler(
// Result of operation. if the sequence is empty, set to
// boost::asio::error::not_found. Otherwise, contains the
// error from the last connection attempt.
const boost::system::error_code&amp; error,
// On success, an iterator denoting the successfully
// connected endpoint. Otherwise, the end iterator.
Iterator iterator
);
</pre>
<p>
Regardless of whether the asynchronous operation completes immediately
or not, the handler will not be invoked from within this function.
On immediate completion, invocation of the handler will be performed
in a manner equivalent to using <a class="link" href="../post.html" title="post"><code class="computeroutput">post</code></a>.
</p>
</dd>
</dl>
</div>
<h6>
<a name="boost_asio.reference.async_connect.overload4.h1"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload4.example"></a></span><a class="link" href="overload4.html#boost_asio.reference.async_connect.overload4.example">Example</a>
</h6>
<p>
The following connect condition function object can be used to output information
about the individual connection attempts:
</p>
<pre class="programlisting">struct my_connect_condition
{
bool operator()(
const boost::system::error_code&amp; ec,
const::tcp::endpoint&amp; next)
{
if (ec) std::cout &lt;&lt; "Error: " &lt;&lt; ec.message() &lt;&lt; std::endl;
std::cout &lt;&lt; "Trying: " &lt;&lt; next &lt;&lt; std::endl;
return true;
}
};
</pre>
<p>
It would be used with the <code class="computeroutput">boost::asio::connect</code> function as
follows:
</p>
<pre class="programlisting">tcp::resolver r(my_context);
tcp::resolver::query q("host", "service");
tcp::socket s(my_context);
// ...
r.async_resolve(q, resolve_handler);
// ...
void resolve_handler(
const boost::system::error_code&amp; ec,
tcp::resolver::results_type results)
{
if (!ec)
{
boost::asio::async_connect(s, results,
my_connect_condition(),
connect_handler);
}
}
// ...
void connect_handler(
const boost::system::error_code&amp; ec,
const tcp::endpoint&amp; endpoint)
{
if (ec)
{
// An error occurred.
}
else
{
std::cout &lt;&lt; "Connected to: " &lt;&lt; endpoint &lt;&lt; std::endl;
}
}
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload3.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload5.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>

View File

@@ -0,0 +1,139 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>async_connect (5 of 6 overloads)</title>
<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../../../boost_asio.html" title="Boost.Asio">
<link rel="up" href="../async_connect.html" title="async_connect">
<link rel="prev" href="overload4.html" title="async_connect (4 of 6 overloads)">
<link rel="next" href="overload6.html" title="async_connect (6 of 6 overloads)">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
<td align="center"><a href="../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload4.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload6.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_asio.reference.async_connect.overload5"></a><a class="link" href="overload5.html" title="async_connect (5 of 6 overloads)">async_connect
(5 of 6 overloads)</a>
</h4></div></div></div>
<p>
(Deprecated: Use range overload.) Asynchronously establishes a socket connection
by trying each endpoint in a sequence.
</p>
<pre class="programlisting">template&lt;
typename <a class="link" href="../Protocol.html" title="Protocol requirements">Protocol</a>,
typename <a class="link" href="../Executor1.html" title="Executor requirements">Executor</a>,
typename Iterator,
typename <a class="link" href="../ConnectCondition.html" title="Connect condition requirements">ConnectCondition</a>,
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>&gt;
<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_connect(
basic_socket&lt; Protocol, Executor &gt; &amp; s,
Iterator begin,
ConnectCondition connect_condition,
IteratorConnectHandler &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>,
typename constraint&lt;!is_endpoint_sequence&lt; Iterator &gt;::value &gt;::type = 0);
</pre>
<p>
This function attempts to connect a socket to one of a sequence of endpoints.
It does this by repeated calls to the socket's <code class="computeroutput">async_connect</code>
member function, once for each endpoint in the sequence, until a connection
is successfully established.
</p>
<h6>
<a name="boost_asio.reference.async_connect.overload5.h0"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload5.parameters"></a></span><a class="link" href="overload5.html#boost_asio.reference.async_connect.overload5.parameters">Parameters</a>
</h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term">s</span></dt>
<dd><p>
The socket to be connected. If the socket is already open, it will
be closed.
</p></dd>
<dt><span class="term">begin</span></dt>
<dd><p>
An iterator pointing to the start of a sequence of endpoints.
</p></dd>
<dt><span class="term">connect_condition</span></dt>
<dd>
<p>
A function object that is called prior to each connection attempt.
The signature of the function object must be:
</p>
<pre class="programlisting">bool connect_condition(
const boost::system::error_code&amp; ec,
const typename Protocol::endpoint&amp; next);
</pre>
<p>
The <code class="computeroutput">ec</code> parameter contains the result from the most recent
connect operation. Before the first connection attempt, <code class="computeroutput">ec</code>
is always set to indicate success. The <code class="computeroutput">next</code> parameter
is the next endpoint to be tried. The function object should return
true if the next endpoint should be tried, and false if it should
be skipped.
</p>
</dd>
<dt><span class="term">handler</span></dt>
<dd>
<p>
The handler to be called when the connect operation completes. Copies
will be made of the handler as required. The function signature of
the handler must be:
</p>
<pre class="programlisting">void handler(
// Result of operation. if the sequence is empty, set to
// boost::asio::error::not_found. Otherwise, contains the
// error from the last connection attempt.
const boost::system::error_code&amp; error,
// On success, an iterator denoting the successfully
// connected endpoint. Otherwise, the end iterator.
Iterator iterator
);
</pre>
<p>
Regardless of whether the asynchronous operation completes immediately
or not, the handler will not be invoked from within this function.
On immediate completion, invocation of the handler will be performed
in a manner equivalent to using <a class="link" href="../post.html" title="post"><code class="computeroutput">post</code></a>.
</p>
</dd>
</dl>
</div>
<h6>
<a name="boost_asio.reference.async_connect.overload5.h1"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload5.remarks"></a></span><a class="link" href="overload5.html#boost_asio.reference.async_connect.overload5.remarks">Remarks</a>
</h6>
<p>
This overload assumes that a default constructed object of type <code class="computeroutput">Iterator</code>
represents the end of the sequence. This is a valid assumption for iterator
types such as <code class="computeroutput">boost::asio::ip::tcp::resolver::iterator</code>.
</p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload4.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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="overload6.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>

View File

@@ -0,0 +1,197 @@
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>async_connect (6 of 6 overloads)</title>
<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="../../../boost_asio.html" title="Boost.Asio">
<link rel="up" href="../async_connect.html" title="async_connect">
<link rel="prev" href="overload5.html" title="async_connect (5 of 6 overloads)">
<link rel="next" href="../async_initiate.html" title="async_initiate">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../boost.png"></td>
<td align="center"><a href="../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload5.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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_initiate.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_asio.reference.async_connect.overload6"></a><a class="link" href="overload6.html" title="async_connect (6 of 6 overloads)">async_connect
(6 of 6 overloads)</a>
</h4></div></div></div>
<p>
Asynchronously establishes a socket connection by trying each endpoint
in a sequence.
</p>
<pre class="programlisting">template&lt;
typename <a class="link" href="../Protocol.html" title="Protocol requirements">Protocol</a>,
typename <a class="link" href="../Executor1.html" title="Executor requirements">Executor</a>,
typename Iterator,
typename <a class="link" href="../ConnectCondition.html" title="Connect condition requirements">ConnectCondition</a>,
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>&gt;
<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_connect(
basic_socket&lt; Protocol, Executor &gt; &amp; s,
Iterator begin,
Iterator end,
ConnectCondition connect_condition,
IteratorConnectHandler &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>);
</pre>
<p>
This function attempts to connect a socket to one of a sequence of endpoints.
It does this by repeated calls to the socket's <code class="computeroutput">async_connect</code>
member function, once for each endpoint in the sequence, until a connection
is successfully established.
</p>
<h6>
<a name="boost_asio.reference.async_connect.overload6.h0"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload6.parameters"></a></span><a class="link" href="overload6.html#boost_asio.reference.async_connect.overload6.parameters">Parameters</a>
</h6>
<div class="variablelist">
<p class="title"><b></b></p>
<dl class="variablelist">
<dt><span class="term">s</span></dt>
<dd><p>
The socket to be connected. If the socket is already open, it will
be closed.
</p></dd>
<dt><span class="term">begin</span></dt>
<dd><p>
An iterator pointing to the start of a sequence of endpoints.
</p></dd>
<dt><span class="term">end</span></dt>
<dd><p>
An iterator pointing to the end of a sequence of endpoints.
</p></dd>
<dt><span class="term">connect_condition</span></dt>
<dd>
<p>
A function object that is called prior to each connection attempt.
The signature of the function object must be:
</p>
<pre class="programlisting">bool connect_condition(
const boost::system::error_code&amp; ec,
const typename Protocol::endpoint&amp; next);
</pre>
<p>
The <code class="computeroutput">ec</code> parameter contains the result from the most recent
connect operation. Before the first connection attempt, <code class="computeroutput">ec</code>
is always set to indicate success. The <code class="computeroutput">next</code> parameter
is the next endpoint to be tried. The function object should return
true if the next endpoint should be tried, and false if it should
be skipped.
</p>
</dd>
<dt><span class="term">handler</span></dt>
<dd>
<p>
The handler to be called when the connect operation completes. Copies
will be made of the handler as required. The function signature of
the handler must be:
</p>
<pre class="programlisting">void handler(
// Result of operation. if the sequence is empty, set to
// boost::asio::error::not_found. Otherwise, contains the
// error from the last connection attempt.
const boost::system::error_code&amp; error,
// On success, an iterator denoting the successfully
// connected endpoint. Otherwise, the end iterator.
Iterator iterator
);
</pre>
<p>
Regardless of whether the asynchronous operation completes immediately
or not, the handler will not be invoked from within this function.
On immediate completion, invocation of the handler will be performed
in a manner equivalent to using <a class="link" href="../post.html" title="post"><code class="computeroutput">post</code></a>.
</p>
</dd>
</dl>
</div>
<h6>
<a name="boost_asio.reference.async_connect.overload6.h1"></a>
<span class="phrase"><a name="boost_asio.reference.async_connect.overload6.example"></a></span><a class="link" href="overload6.html#boost_asio.reference.async_connect.overload6.example">Example</a>
</h6>
<p>
The following connect condition function object can be used to output information
about the individual connection attempts:
</p>
<pre class="programlisting">struct my_connect_condition
{
bool operator()(
const boost::system::error_code&amp; ec,
const::tcp::endpoint&amp; next)
{
if (ec) std::cout &lt;&lt; "Error: " &lt;&lt; ec.message() &lt;&lt; std::endl;
std::cout &lt;&lt; "Trying: " &lt;&lt; next &lt;&lt; std::endl;
return true;
}
};
</pre>
<p>
It would be used with the <code class="computeroutput">boost::asio::connect</code> function as
follows:
</p>
<pre class="programlisting">tcp::resolver r(my_context);
tcp::resolver::query q("host", "service");
tcp::socket s(my_context);
// ...
r.async_resolve(q, resolve_handler);
// ...
void resolve_handler(
const boost::system::error_code&amp; ec,
tcp::resolver::iterator i)
{
if (!ec)
{
tcp::resolver::iterator end;
boost::asio::async_connect(s, i, end,
my_connect_condition(),
connect_handler);
}
}
// ...
void connect_handler(
const boost::system::error_code&amp; ec,
tcp::resolver::iterator i)
{
if (ec)
{
// An error occurred.
}
else
{
std::cout &lt;&lt; "Connected to: " &lt;&lt; i-&gt;endpoint() &lt;&lt; std::endl;
}
}
</pre>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
M. Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="overload5.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../async_connect.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_initiate.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>