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+<title>async_write (7 of 8 overloads)</title>
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+<div class="titlepage"><div><div><h4 class="title">
+<a name="boost_asio.reference.async_write.overload7"></a><a class="link" href="overload7.html" title="async_write (7 of 8 overloads)">async_write
+ (7 of 8 overloads)</a>
+</h4></div></div></div>
+<p>
+ Start an asynchronous operation to write all of the supplied data to a
+ stream.
+ </p>
+<pre class="programlisting">template&lt;
+ typename <a class="link" href="../AsyncWriteStream.html" title="Buffer-oriented asynchronous write stream requirements">AsyncWriteStream</a>,
+ typename <a class="link" href="../DynamicBuffer_v2.html" title="Dynamic buffer requirements (version 2)">DynamicBuffer_v2</a>,
+ typename <a class="link" href="../WriteHandler.html" title="Write handler requirements">WriteHandler</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_write(
+ AsyncWriteStream &amp; s,
+ DynamicBuffer_v2 buffers,
+ WriteHandler &amp;&amp; handler,
+ typename enable_if&lt; is_dynamic_buffer_v2&lt; DynamicBuffer_v2 &gt;::value &gt;::type * = 0);
+</pre>
+<p>
+ This function is used to asynchronously write a certain number of bytes
+ of data to a stream. The function call always returns immediately. The
+ asynchronous operation will continue until one of the following conditions
+ is true:
+ </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+ All of the data in the supplied dynamic buffer sequence has been written.
+ </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
+ async_write_some function, and is known as a <span class="emphasis"><em>composed operation</em></span>.
+ The program must ensure that the stream performs no other write operations
+ (such as async_write, the stream's async_write_some function, or any other
+ composed operations that perform writes) until this operation completes.
+ </p>
+<h6>
+<a name="boost_asio.reference.async_write.overload7.h0"></a>
+ <span class="phrase"><a name="boost_asio.reference.async_write.overload7.parameters"></a></span><a class="link" href="overload7.html#boost_asio.reference.async_write.overload7.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 stream to which the data is to be written. The type must support
+ the AsyncWriteStream concept.
+ </p></dd>
+<dt><span class="term">buffers</span></dt>
+<dd><p>
+ The dynamic buffer sequence from which data will be written. Although
+ the buffers object may be copied as necessary, ownership of the underlying
+ memory blocks is retained by the caller, which must guarantee that
+ they remain valid until the handler is called. Successfully written
+ data is automatically consumed from the buffers.
+ </p></dd>
+<dt><span class="term">handler</span></dt>
+<dd>
+<p>
+ The handler to be called when the write 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(
+ const boost::system::error_code&amp; error, // Result of operation.
+
+ std::size_t bytes_transferred // Number of bytes written from the
+ // buffers. If an error occurred,
+ // this will be less than the sum
+ // of the buffer sizes.
+);
+</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>
+</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 &#169; 2003-2019 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>
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