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| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="boost_asio.reference.read_until.overload2"></a><a class="link" href="overload2.html" title="read_until (2 of 8 overloads)">read_until |
| (2 of 8 overloads)</a> |
| </h4></div></div></div> |
| <p> |
| Read data into a streambuf until it contains a specified delimiter. |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> |
| <span class="keyword">typename</span> <a class="link" href="../SyncReadStream.html" title="Buffer-oriented synchronous read stream requirements">SyncReadStream</a><span class="special">,</span> |
| <span class="keyword">typename</span> <span class="identifier">Allocator</span><span class="special">></span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">read_until</span><span class="special">(</span> |
| <span class="identifier">SyncReadStream</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">,</span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">asio</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="keyword">char</span> <span class="identifier">delim</span><span class="special">,</span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">system</span><span class="special">::</span><span class="identifier">error_code</span> <span class="special">&</span> <span class="identifier">ec</span><span class="special">);</span> |
| </pre> |
| <p> |
| This function is used to read data into the specified streambuf until the |
| streambuf's get area contains the specified delimiter. The call will block |
| until one of the following conditions is true: |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| The get area of the streambuf contains the specified delimiter. |
| </li> |
| <li class="listitem"> |
| An error occurred. |
| </li> |
| </ul></div> |
| <p> |
| This operation is implemented in terms of zero or more calls to the stream's |
| read_some function. If the streambuf's get area already contains the delimiter, |
| the function returns immediately. |
| </p> |
| <a name="boost_asio.reference.read_until.overload2.parameters"></a><h6> |
| <a name="id1296963"></a> |
| <a class="link" href="overload2.html#boost_asio.reference.read_until.overload2.parameters">Parameters</a> |
| </h6> |
| <div class="variablelist"> |
| <p class="title"><b></b></p> |
| <dl> |
| <dt><span class="term">s</span></dt> |
| <dd><p> |
| The stream from which the data is to be read. The type must support |
| the SyncReadStream concept. |
| </p></dd> |
| <dt><span class="term">b</span></dt> |
| <dd><p> |
| A streambuf object into which the data will be read. |
| </p></dd> |
| <dt><span class="term">delim</span></dt> |
| <dd><p> |
| The delimiter character. |
| </p></dd> |
| <dt><span class="term">ec</span></dt> |
| <dd><p> |
| Set to indicate what error occurred, if any. |
| </p></dd> |
| </dl> |
| </div> |
| <a name="boost_asio.reference.read_until.overload2.return_value"></a><h6> |
| <a name="id1297048"></a> |
| <a class="link" href="overload2.html#boost_asio.reference.read_until.overload2.return_value">Return |
| Value</a> |
| </h6> |
| <p> |
| The number of bytes in the streambuf's get area up to and including the |
| delimiter. Returns 0 if an error occurred. |
| </p> |
| <a name="boost_asio.reference.read_until.overload2.remarks"></a><h6> |
| <a name="id1297076"></a> |
| <a class="link" href="overload2.html#boost_asio.reference.read_until.overload2.remarks">Remarks</a> |
| </h6> |
| <p> |
| After a successful read_until operation, the streambuf may contain additional |
| data beyond the delimiter. An application will typically leave that data |
| in the streambuf for a subsequent read_until operation to examine. |
| </p> |
| </div> |
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| <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>) |
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