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<div class="titlepage"><div><div><h3 class="title">
<a name="asio.reference.windows__basic_random_access_handle"></a><a class="link" href="windows__basic_random_access_handle.html" title="windows::basic_random_access_handle">
windows::basic_random_access_handle</a>
</h3></div></div></div>
<p>
Provides random-access handle functionality.
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
<span class="keyword">typename</span> <a class="link" href="RandomAccessHandleService.html" title="Random access handle service requirements">RandomAccessHandleService</a> <span class="special">=</span> <span class="identifier">random_access_handle_service</span><span class="special">></span>
<span class="keyword">class</span> <span class="identifier">basic_random_access_handle</span> <span class="special">:</span>
<span class="keyword">public</span> <span class="identifier">windows</span><span class="special">::</span><span class="identifier">basic_handle</span><span class="special"><</span> <span class="identifier">RandomAccessHandleService</span> <span class="special">></span>
</pre>
<a name="asio.reference.windows__basic_random_access_handle.types"></a><h5>
<a name="id1034730"></a>
<a class="link" href="windows__basic_random_access_handle.html#asio.reference.windows__basic_random_access_handle.types">Types</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/implementation_type.html" title="windows::basic_random_access_handle::implementation_type"><span class="bold"><strong>implementation_type</strong></span></a>
</p>
</td>
<td>
<p>
The underlying implementation type of I/O object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/lowest_layer_type.html" title="windows::basic_random_access_handle::lowest_layer_type"><span class="bold"><strong>lowest_layer_type</strong></span></a>
</p>
</td>
<td>
<p>
A basic_handle is always the lowest layer.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/native_type.html" title="windows::basic_random_access_handle::native_type"><span class="bold"><strong>native_type</strong></span></a>
</p>
</td>
<td>
<p>
The native representation of a handle.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/service_type.html" title="windows::basic_random_access_handle::service_type"><span class="bold"><strong>service_type</strong></span></a>
</p>
</td>
<td>
<p>
The type of the service that will be used to provide I/O operations.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.windows__basic_random_access_handle.member_functions"></a><h5>
<a name="id1034894"></a>
<a class="link" href="windows__basic_random_access_handle.html#asio.reference.windows__basic_random_access_handle.member_functions">Member
Functions</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/assign.html" title="windows::basic_random_access_handle::assign"><span class="bold"><strong>assign</strong></span></a>
</p>
</td>
<td>
<p>
Assign an existing native handle to the handle.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/async_read_some_at.html" title="windows::basic_random_access_handle::async_read_some_at"><span class="bold"><strong>async_read_some_at</strong></span></a>
</p>
</td>
<td>
<p>
Start an asynchronous read at the specified offset.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/async_write_some_at.html" title="windows::basic_random_access_handle::async_write_some_at"><span class="bold"><strong>async_write_some_at</strong></span></a>
</p>
</td>
<td>
<p>
Start an asynchronous write at the specified offset.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/basic_random_access_handle.html" title="windows::basic_random_access_handle::basic_random_access_handle"><span class="bold"><strong>basic_random_access_handle</strong></span></a>
</p>
</td>
<td>
<p>
Construct a basic_random_access_handle without opening it.
</p>
<p>
Construct a basic_random_access_handle on an existing native handle.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/cancel.html" title="windows::basic_random_access_handle::cancel"><span class="bold"><strong>cancel</strong></span></a>
</p>
</td>
<td>
<p>
Cancel all asynchronous operations associated with the handle.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/close.html" title="windows::basic_random_access_handle::close"><span class="bold"><strong>close</strong></span></a>
</p>
</td>
<td>
<p>
Close the handle.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/get_io_service.html" title="windows::basic_random_access_handle::get_io_service"><span class="bold"><strong>get_io_service</strong></span></a>
</p>
</td>
<td>
<p>
Get the io_service associated with the object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/io_service.html" title="windows::basic_random_access_handle::io_service"><span class="bold"><strong>io_service</strong></span></a>
</p>
</td>
<td>
<p>
(Deprecated: use get_io_service().) Get the io_service associated
with the object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/is_open.html" title="windows::basic_random_access_handle::is_open"><span class="bold"><strong>is_open</strong></span></a>
</p>
</td>
<td>
<p>
Determine whether the handle is open.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/lowest_layer.html" title="windows::basic_random_access_handle::lowest_layer"><span class="bold"><strong>lowest_layer</strong></span></a>
</p>
</td>
<td>
<p>
Get a reference to the lowest layer.
</p>
<p>
Get a const reference to the lowest layer.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/native.html" title="windows::basic_random_access_handle::native"><span class="bold"><strong>native</strong></span></a>
</p>
</td>
<td>
<p>
Get the native handle representation.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/read_some_at.html" title="windows::basic_random_access_handle::read_some_at"><span class="bold"><strong>read_some_at</strong></span></a>
</p>
</td>
<td>
<p>
Read some data from the handle at the specified offset.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/write_some_at.html" title="windows::basic_random_access_handle::write_some_at"><span class="bold"><strong>write_some_at</strong></span></a>
</p>
</td>
<td>
<p>
Write some data to the handle at the specified offset.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.windows__basic_random_access_handle.protected_data_members"></a><h5>
<a name="id1035320"></a>
<a class="link" href="windows__basic_random_access_handle.html#asio.reference.windows__basic_random_access_handle.protected_data_members">Protected
Data Members</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/implementation.html" title="windows::basic_random_access_handle::implementation"><span class="bold"><strong>implementation</strong></span></a>
</p>
</td>
<td>
<p>
The underlying implementation of the I/O object.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="windows__basic_random_access_handle/service.html" title="windows::basic_random_access_handle::service"><span class="bold"><strong>service</strong></span></a>
</p>
</td>
<td>
<p>
The service associated with the I/O object.
</p>
</td>
</tr>
</tbody>
</table></div>
<p>
The <a class="link" href="windows__basic_random_access_handle.html" title="windows::basic_random_access_handle"><code class="computeroutput"><span class="identifier">windows</span><span class="special">::</span><span class="identifier">basic_random_access_handle</span></code></a> class
template provides asynchronous and blocking random-access handle functionality.
</p>
<a name="asio.reference.windows__basic_random_access_handle.thread_safety"></a><h5>
<a name="id1035459"></a>
<a class="link" href="windows__basic_random_access_handle.html#asio.reference.windows__basic_random_access_handle.thread_safety">Thread
Safety</a>
</h5>
<p>
<span class="bold"><strong>Distinct</strong></span> <span class="bold"><strong>objects:</strong></span>
Safe.
</p>
<p>
<span class="bold"><strong>Shared</strong></span> <span class="bold"><strong>objects:</strong></span>
Unsafe.
</p>
<a name="asio.reference.windows__basic_random_access_handle.requirements"></a><h5>
<a name="id1035510"></a>
<a class="link" href="windows__basic_random_access_handle.html#asio.reference.windows__basic_random_access_handle.requirements">Requirements</a>
</h5>
<p>
<span class="bold"><strong>Header: </strong></span><code class="literal">asio/windows/basic_random_access_handle.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>
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