<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>async_read</title> <link rel="stylesheet" href="../../boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2"> <link rel="start" href="../../index.html" title="Asio"> <link rel="up" href="../reference.html" title="Reference"> <link rel="prev" href="asio_handler_invoke.html" title="asio_handler_invoke"> <link rel="next" href="async_read/overload1.html" title="async_read (1 of 4 overloads)"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="asio_handler_invoke.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="async_read/overload1.html"><img src="../../next.png" alt="Next"></a> </div> <div class="section" lang="en"> <div class="titlepage"><div><div><h3 class="title"> <a name="asio.reference.async_read"></a><a class="link" href="async_read.html" title="async_read">async_read</a> </h3></div></div></div> <p> <a class="indexterm" name="id723433"></a> Start an asynchronous operation to read a certain amount of data from a stream. </p> <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <a class="link" href="AsyncReadStream.html" title="Buffer-oriented asynchronous read stream requirements">AsyncReadStream</a><span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="MutableBufferSequence.html" title="Mutable buffer sequence requirements">MutableBufferSequence</a><span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="ReadHandler.html" title="Read handler requirements">ReadHandler</a><span class="special">></span> <span class="keyword">void</span> <a class="link" href="async_read/overload1.html" title="async_read (1 of 4 overloads)">async_read</a><span class="special">(</span> <span class="identifier">AsyncReadStream</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">MutableBufferSequence</span> <span class="special">&</span> <span class="identifier">buffers</span><span class="special">,</span> <span class="identifier">ReadHandler</span> <span class="identifier">handler</span><span class="special">);</span> <span class="emphasis"><em>» <a class="link" href="async_read/overload1.html" title="async_read (1 of 4 overloads)">more...</a></em></span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <a class="link" href="AsyncReadStream.html" title="Buffer-oriented asynchronous read stream requirements">AsyncReadStream</a><span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="MutableBufferSequence.html" title="Mutable buffer sequence requirements">MutableBufferSequence</a><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">CompletionCondition</span><span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="ReadHandler.html" title="Read handler requirements">ReadHandler</a><span class="special">></span> <span class="keyword">void</span> <a class="link" href="async_read/overload2.html" title="async_read (2 of 4 overloads)">async_read</a><span class="special">(</span> <span class="identifier">AsyncReadStream</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">MutableBufferSequence</span> <span class="special">&</span> <span class="identifier">buffers</span><span class="special">,</span> <span class="identifier">CompletionCondition</span> <span class="identifier">completion_condition</span><span class="special">,</span> <span class="identifier">ReadHandler</span> <span class="identifier">handler</span><span class="special">);</span> <span class="emphasis"><em>» <a class="link" href="async_read/overload2.html" title="async_read (2 of 4 overloads)">more...</a></em></span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <a class="link" href="AsyncReadStream.html" title="Buffer-oriented asynchronous read stream requirements">AsyncReadStream</a><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Allocator</span><span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="ReadHandler.html" title="Read handler requirements">ReadHandler</a><span class="special">></span> <span class="keyword">void</span> <a class="link" href="async_read/overload3.html" title="async_read (3 of 4 overloads)">async_read</a><span class="special">(</span> <span class="identifier">AsyncReadStream</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">basic_streambuf</span><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span> <span class="special">&</span> <span class="identifier">b</span><span class="special">,</span> <span class="identifier">ReadHandler</span> <span class="identifier">handler</span><span class="special">);</span> <span class="emphasis"><em>» <a class="link" href="async_read/overload3.html" title="async_read (3 of 4 overloads)">more...</a></em></span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <a class="link" href="AsyncReadStream.html" title="Buffer-oriented asynchronous read stream requirements">AsyncReadStream</a><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Allocator</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">CompletionCondition</span><span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="ReadHandler.html" title="Read handler requirements">ReadHandler</a><span class="special">></span> <span class="keyword">void</span> <a class="link" href="async_read/overload4.html" title="async_read (4 of 4 overloads)">async_read</a><span class="special">(</span> <span class="identifier">AsyncReadStream</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> <span class="identifier">basic_streambuf</span><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span> <span class="special">&</span> <span class="identifier">b</span><span class="special">,</span> <span class="identifier">CompletionCondition</span> <span class="identifier">completion_condition</span><span class="special">,</span> <span class="identifier">ReadHandler</span> <span class="identifier">handler</span><span class="special">);</span> <span class="emphasis"><em>» <a class="link" href="async_read/overload4.html" title="async_read (4 of 4 overloads)">more...</a></em></span> </pre> <a name="asio.reference.async_read.requirements"></a><h5> <a name="id724151"></a> <a class="link" href="async_read.html#asio.reference.async_read.requirements">Requirements</a> </h5> <p> <span class="bold"><strong>Header: </strong></span><code class="literal">asio/read.hpp</code> </p> <p> <span class="bold"><strong>Convenience header: </strong></span><code class="literal">asio.hpp</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 - 2010 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="asio_handler_invoke.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="async_read/overload1.html"><img src="../../next.png" alt="Next"></a> </div> </body> </html>