1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>basic_stream_socket::receive (2 of 3 overloads)</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="../receive.html" title="basic_stream_socket::receive"> 9<link rel="prev" href="overload1.html" title="basic_stream_socket::receive (1 of 3 overloads)"> 10<link rel="next" href="overload3.html" title="basic_stream_socket::receive (3 of 3 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="overload1.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../receive.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> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="boost_asio.reference.basic_stream_socket.receive.overload2"></a><a class="link" href="overload2.html" title="basic_stream_socket::receive (2 of 3 overloads)">basic_stream_socket::receive 28 (2 of 3 overloads)</a> 29</h5></div></div></div> 30<p> 31 Receive some data on the socket. 32 </p> 33<pre class="programlisting">template< 34 typename <a class="link" href="../../MutableBufferSequence.html" title="Mutable buffer sequence requirements">MutableBufferSequence</a>> 35std::size_t receive( 36 const MutableBufferSequence & buffers, 37 socket_base::message_flags flags); 38</pre> 39<p> 40 This function is used to receive data on the stream socket. The function 41 call will block until one or more bytes of data has been received successfully, 42 or until an error occurs. 43 </p> 44<h6> 45<a name="boost_asio.reference.basic_stream_socket.receive.overload2.h0"></a> 46 <span class="phrase"><a name="boost_asio.reference.basic_stream_socket.receive.overload2.parameters"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_stream_socket.receive.overload2.parameters">Parameters</a> 47 </h6> 48<div class="variablelist"> 49<p class="title"><b></b></p> 50<dl class="variablelist"> 51<dt><span class="term">buffers</span></dt> 52<dd><p> 53 One or more buffers into which the data will be received. 54 </p></dd> 55<dt><span class="term">flags</span></dt> 56<dd><p> 57 Flags specifying how the receive call is to be made. 58 </p></dd> 59</dl> 60</div> 61<h6> 62<a name="boost_asio.reference.basic_stream_socket.receive.overload2.h1"></a> 63 <span class="phrase"><a name="boost_asio.reference.basic_stream_socket.receive.overload2.return_value"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_stream_socket.receive.overload2.return_value">Return 64 Value</a> 65 </h6> 66<p> 67 The number of bytes received. 68 </p> 69<h6> 70<a name="boost_asio.reference.basic_stream_socket.receive.overload2.h2"></a> 71 <span class="phrase"><a name="boost_asio.reference.basic_stream_socket.receive.overload2.exceptions"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_stream_socket.receive.overload2.exceptions">Exceptions</a> 72 </h6> 73<div class="variablelist"> 74<p class="title"><b></b></p> 75<dl class="variablelist"> 76<dt><span class="term">boost::system::system_error</span></dt> 77<dd><p> 78 Thrown on failure. An error code of <code class="computeroutput">boost::asio::error::eof</code> 79 indicates that the connection was closed by the peer. 80 </p></dd> 81</dl> 82</div> 83<h6> 84<a name="boost_asio.reference.basic_stream_socket.receive.overload2.h3"></a> 85 <span class="phrase"><a name="boost_asio.reference.basic_stream_socket.receive.overload2.remarks"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_stream_socket.receive.overload2.remarks">Remarks</a> 86 </h6> 87<p> 88 The receive operation may not receive all of the requested number of 89 bytes. Consider using the <a class="link" href="../../read.html" title="read"><code class="computeroutput">read</code></a> 90 function if you need to ensure that the requested amount of data is read 91 before the blocking operation completes. 92 </p> 93<h6> 94<a name="boost_asio.reference.basic_stream_socket.receive.overload2.h4"></a> 95 <span class="phrase"><a name="boost_asio.reference.basic_stream_socket.receive.overload2.example"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_stream_socket.receive.overload2.example">Example</a> 96 </h6> 97<p> 98 To receive into a single data buffer use the <a class="link" href="../../buffer.html" title="buffer"><code class="computeroutput">buffer</code></a> 99 function as follows: 100 </p> 101<pre class="programlisting">socket.receive(boost::asio::buffer(data, size), 0); 102</pre> 103<p> 104 See the <a class="link" href="../../buffer.html" title="buffer"><code class="computeroutput">buffer</code></a> 105 documentation for information on receiving into multiple buffers in one 106 go, and how to use it with arrays, boost::array or std::vector. 107 </p> 108</div> 109<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 110<td align="left"></td> 111<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 112 Kohlhoff<p> 113 Distributed under the Boost Software License, Version 1.0. (See accompanying 114 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>) 115 </p> 116</div></td> 117</tr></table> 118<hr> 119<div class="spirit-nav"> 120<a accesskey="p" href="overload1.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../receive.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> 121</div> 122</body> 123</html> 124
