async_write_at.html
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<div class="titlepage"><div><div><h3 class="title">
<a name="asio.reference.async_write_at"></a><a class="link" href="async_write_at.html" title="async_write_at">async_write_at</a>
</h3></div></div></div>
<p>
<a class="indexterm" name="asio.indexterm.async_write_at"></a>
The <code class="computeroutput">async_write_at</code>
function is a composed asynchronous operation that writes a certain amount
of data at the specified offset before completion.
</p>
<p>
Start an asynchronous operation to write all of the supplied data at the
specified offset.
</p>
<pre class="programlisting">template<
typename <a class="link" href="AsyncRandomAccessWriteDevice.html" title="Buffer-oriented asynchronous random-access write device requirements">AsyncRandomAccessWriteDevice</a>,
typename <a class="link" href="ConstBufferSequence.html" title="Constant buffer sequence requirements">ConstBufferSequence</a>,
typename <a class="link" href="WriteHandler.html" title="Write handler requirements">WriteHandler</a> = <a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>>
<a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> <a class="link" href="async_write_at/overload1.html" title="async_write_at (1 of 4 overloads)">async_write_at</a>(
AsyncRandomAccessWriteDevice & d,
uint64_t offset,
const ConstBufferSequence & buffers,
WriteHandler && handler = <a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>);
<span class="emphasis"><em>» <a class="link" href="async_write_at/overload1.html" title="async_write_at (1 of 4 overloads)">more...</a></em></span>
</pre>
<p>
Start an asynchronous operation to write a certain amount of data at the
specified offset.
</p>
<pre class="programlisting">template<
typename <a class="link" href="AsyncRandomAccessWriteDevice.html" title="Buffer-oriented asynchronous random-access write device requirements">AsyncRandomAccessWriteDevice</a>,
typename <a class="link" href="ConstBufferSequence.html" title="Constant buffer sequence requirements">ConstBufferSequence</a>,
typename <a class="link" href="CompletionCondition.html" title="Completion condition requirements">CompletionCondition</a>,
typename <a class="link" href="WriteHandler.html" title="Write handler requirements">WriteHandler</a> = <a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>>
<a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> <a class="link" href="async_write_at/overload2.html" title="async_write_at (2 of 4 overloads)">async_write_at</a>(
AsyncRandomAccessWriteDevice & d,
uint64_t offset,
const ConstBufferSequence & buffers,
CompletionCondition completion_condition,
WriteHandler && handler = <a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>);
<span class="emphasis"><em>» <a class="link" href="async_write_at/overload2.html" title="async_write_at (2 of 4 overloads)">more...</a></em></span>
</pre>
<p>
Start an asynchronous operation to write all of the supplied data at the
specified offset.
</p>
<pre class="programlisting">template<
typename <a class="link" href="AsyncRandomAccessWriteDevice.html" title="Buffer-oriented asynchronous random-access write device requirements">AsyncRandomAccessWriteDevice</a>,
typename Allocator,
typename <a class="link" href="WriteHandler.html" title="Write handler requirements">WriteHandler</a> = <a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>>
<a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> <a class="link" href="async_write_at/overload3.html" title="async_write_at (3 of 4 overloads)">async_write_at</a>(
AsyncRandomAccessWriteDevice & d,
uint64_t offset,
basic_streambuf< Allocator > & b,
WriteHandler && handler = <a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>);
<span class="emphasis"><em>» <a class="link" href="async_write_at/overload3.html" title="async_write_at (3 of 4 overloads)">more...</a></em></span>
</pre>
<p>
Start an asynchronous operation to write a certain amount of data at the
specified offset.
</p>
<pre class="programlisting">template<
typename <a class="link" href="AsyncRandomAccessWriteDevice.html" title="Buffer-oriented asynchronous random-access write device requirements">AsyncRandomAccessWriteDevice</a>,
typename Allocator,
typename <a class="link" href="CompletionCondition.html" title="Completion condition requirements">CompletionCondition</a>,
typename <a class="link" href="WriteHandler.html" title="Write handler requirements">WriteHandler</a> = <a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>>
<a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> <a class="link" href="async_write_at/overload4.html" title="async_write_at (4 of 4 overloads)">async_write_at</a>(
AsyncRandomAccessWriteDevice & d,
uint64_t offset,
basic_streambuf< Allocator > & b,
CompletionCondition completion_condition,
WriteHandler && handler = <a class="link" href="asynchronous_operations.html#asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>);
<span class="emphasis"><em>» <a class="link" href="async_write_at/overload4.html" title="async_write_at (4 of 4 overloads)">more...</a></em></span>
</pre>
<h5>
<a name="asio.reference.async_write_at.h0"></a>
<span><a name="asio.reference.async_write_at.requirements"></a></span><a class="link" href="async_write_at.html#asio.reference.async_write_at.requirements">Requirements</a>
</h5>
<p>
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/write_at.hpp</code>
</p>
<p>
<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
</p>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2020 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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