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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.reference.local__stream_protocol.acceptor"></a><a class="link" href="acceptor.html" title="local::stream_protocol::acceptor">local::stream_protocol::acceptor</a>
</h4></div></div></div>
<p>
<a class="indexterm" name="id1070937"></a>
The UNIX domain acceptor type.
</p>
<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">basic_socket_acceptor</span><span class="special"><</span> <span class="identifier">stream_protocol</span> <span class="special">></span> <span class="identifier">acceptor</span><span class="special">;</span>
</pre>
<a name="asio.reference.local__stream_protocol.acceptor.types"></a><h6>
<a name="id1070999"></a>
<a class="link" href="acceptor.html#asio.reference.local__stream_protocol.acceptor.types">Types</a>
</h6>
<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="../basic_socket_acceptor/broadcast.html" title="basic_socket_acceptor::broadcast"><span class="bold"><strong>broadcast</strong></span></a>
</p>
</td>
<td>
<p>
Socket option to permit sending of broadcast messages.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/bytes_readable.html" title="basic_socket_acceptor::bytes_readable"><span class="bold"><strong>bytes_readable</strong></span></a>
</p>
</td>
<td>
<p>
IO control command to get the amount of data that can be read
without blocking.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/debug.html" title="basic_socket_acceptor::debug"><span class="bold"><strong>debug</strong></span></a>
</p>
</td>
<td>
<p>
Socket option to enable socket-level debugging.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/do_not_route.html" title="basic_socket_acceptor::do_not_route"><span class="bold"><strong>do_not_route</strong></span></a>
</p>
</td>
<td>
<p>
Socket option to prevent routing, use local interfaces only.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/enable_connection_aborted.html" title="basic_socket_acceptor::enable_connection_aborted"><span class="bold"><strong>enable_connection_aborted</strong></span></a>
</p>
</td>
<td>
<p>
Socket option to report aborted connections on accept.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/endpoint_type.html" title="basic_socket_acceptor::endpoint_type"><span class="bold"><strong>endpoint_type</strong></span></a>
</p>
</td>
<td>
<p>
The endpoint type.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/implementation_type.html" title="basic_socket_acceptor::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="../basic_socket_acceptor/keep_alive.html" title="basic_socket_acceptor::keep_alive"><span class="bold"><strong>keep_alive</strong></span></a>
</p>
</td>
<td>
<p>
Socket option to send keep-alives.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/linger.html" title="basic_socket_acceptor::linger"><span class="bold"><strong>linger</strong></span></a>
</p>
</td>
<td>
<p>
Socket option to specify whether the socket lingers on close
if unsent data is present.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/message_flags.html" title="basic_socket_acceptor::message_flags"><span class="bold"><strong>message_flags</strong></span></a>
</p>
</td>
<td>
<p>
Bitmask type for flags that can be passed to send and receive
operations.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/native_type.html" title="basic_socket_acceptor::native_type"><span class="bold"><strong>native_type</strong></span></a>
</p>
</td>
<td>
<p>
The native representation of an acceptor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/non_blocking_io.html" title="basic_socket_acceptor::non_blocking_io"><span class="bold"><strong>non_blocking_io</strong></span></a>
</p>
</td>
<td>
<p>
IO control command to set the blocking mode of the socket.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/protocol_type.html" title="basic_socket_acceptor::protocol_type"><span class="bold"><strong>protocol_type</strong></span></a>
</p>
</td>
<td>
<p>
The protocol type.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/receive_buffer_size.html" title="basic_socket_acceptor::receive_buffer_size"><span class="bold"><strong>receive_buffer_size</strong></span></a>
</p>
</td>
<td>
<p>
Socket option for the receive buffer size of a socket.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/receive_low_watermark.html" title="basic_socket_acceptor::receive_low_watermark"><span class="bold"><strong>receive_low_watermark</strong></span></a>
</p>
</td>
<td>
<p>
Socket option for the receive low watermark.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/reuse_address.html" title="basic_socket_acceptor::reuse_address"><span class="bold"><strong>reuse_address</strong></span></a>
</p>
</td>
<td>
<p>
Socket option to allow the socket to be bound to an address that
is already in use.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/send_buffer_size.html" title="basic_socket_acceptor::send_buffer_size"><span class="bold"><strong>send_buffer_size</strong></span></a>
</p>
</td>
<td>
<p>
Socket option for the send buffer size of a socket.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/send_low_watermark.html" title="basic_socket_acceptor::send_low_watermark"><span class="bold"><strong>send_low_watermark</strong></span></a>
</p>
</td>
<td>
<p>
Socket option for the send low watermark.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/service_type.html" title="basic_socket_acceptor::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>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/shutdown_type.html" title="basic_socket_acceptor::shutdown_type"><span class="bold"><strong>shutdown_type</strong></span></a>
</p>
</td>
<td>
<p>
Different ways a socket may be shutdown.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.local__stream_protocol.acceptor.member_functions"></a><h6>
<a name="id1071604"></a>
<a class="link" href="acceptor.html#asio.reference.local__stream_protocol.acceptor.member_functions">Member
Functions</a>
</h6>
<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="../basic_socket_acceptor/accept.html" title="basic_socket_acceptor::accept"><span class="bold"><strong>accept</strong></span></a>
</p>
</td>
<td>
<p>
Accept a new connection.
</p>
<p>
Accept a new connection and obtain the endpoint of the peer.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/assign.html" title="basic_socket_acceptor::assign"><span class="bold"><strong>assign</strong></span></a>
</p>
</td>
<td>
<p>
Assigns an existing native acceptor to the acceptor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/async_accept.html" title="basic_socket_acceptor::async_accept"><span class="bold"><strong>async_accept</strong></span></a>
</p>
</td>
<td>
<p>
Start an asynchronous accept.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/basic_socket_acceptor.html" title="basic_socket_acceptor::basic_socket_acceptor"><span class="bold"><strong>basic_socket_acceptor</strong></span></a>
</p>
</td>
<td>
<p>
Construct an acceptor without opening it.
</p>
<p>
Construct an open acceptor.
</p>
<p>
Construct an acceptor opened on the given endpoint.
</p>
<p>
Construct a basic_socket_acceptor on an existing native acceptor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/bind.html" title="basic_socket_acceptor::bind"><span class="bold"><strong>bind</strong></span></a>
</p>
</td>
<td>
<p>
Bind the acceptor to the given local endpoint.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/cancel.html" title="basic_socket_acceptor::cancel"><span class="bold"><strong>cancel</strong></span></a>
</p>
</td>
<td>
<p>
Cancel all asynchronous operations associated with the acceptor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/close.html" title="basic_socket_acceptor::close"><span class="bold"><strong>close</strong></span></a>
</p>
</td>
<td>
<p>
Close the acceptor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/get_io_service.html" title="basic_socket_acceptor::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="../basic_socket_acceptor/get_option.html" title="basic_socket_acceptor::get_option"><span class="bold"><strong>get_option</strong></span></a>
</p>
</td>
<td>
<p>
Get an option from the acceptor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/io_service.html" title="basic_socket_acceptor::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="../basic_socket_acceptor/is_open.html" title="basic_socket_acceptor::is_open"><span class="bold"><strong>is_open</strong></span></a>
</p>
</td>
<td>
<p>
Determine whether the acceptor is open.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/listen.html" title="basic_socket_acceptor::listen"><span class="bold"><strong>listen</strong></span></a>
</p>
</td>
<td>
<p>
Place the acceptor into the state where it will listen for new
connections.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/local_endpoint.html" title="basic_socket_acceptor::local_endpoint"><span class="bold"><strong>local_endpoint</strong></span></a>
</p>
</td>
<td>
<p>
Get the local endpoint of the acceptor.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/native.html" title="basic_socket_acceptor::native"><span class="bold"><strong>native</strong></span></a>
</p>
</td>
<td>
<p>
Get the native acceptor representation.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/open.html" title="basic_socket_acceptor::open"><span class="bold"><strong>open</strong></span></a>
</p>
</td>
<td>
<p>
Open the acceptor using the specified protocol.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/set_option.html" title="basic_socket_acceptor::set_option"><span class="bold"><strong>set_option</strong></span></a>
</p>
</td>
<td>
<p>
Set an option on the acceptor.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.local__stream_protocol.acceptor.data_members"></a><h6>
<a name="id1072113"></a>
<a class="link" href="acceptor.html#asio.reference.local__stream_protocol.acceptor.data_members">Data
Members</a>
</h6>
<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="../basic_socket_acceptor/max_connections.html" title="basic_socket_acceptor::max_connections"><span class="bold"><strong>max_connections</strong></span></a>
</p>
</td>
<td>
<p>
The maximum length of the queue of pending incoming connections.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/message_do_not_route.html" title="basic_socket_acceptor::message_do_not_route"><span class="bold"><strong>message_do_not_route</strong></span></a>
</p>
</td>
<td>
<p>
Specify that the data should not be subject to routing.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/message_out_of_band.html" title="basic_socket_acceptor::message_out_of_band"><span class="bold"><strong>message_out_of_band</strong></span></a>
</p>
</td>
<td>
<p>
Process out-of-band data.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../basic_socket_acceptor/message_peek.html" title="basic_socket_acceptor::message_peek"><span class="bold"><strong>message_peek</strong></span></a>
</p>
</td>
<td>
<p>
Peek at incoming data without removing it from the input queue.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.local__stream_protocol.acceptor.protected_data_members"></a><h6>
<a name="id1072278"></a>
<a class="link" href="acceptor.html#asio.reference.local__stream_protocol.acceptor.protected_data_members">Protected
Data Members</a>
</h6>
<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="../basic_socket_acceptor/implementation.html" title="basic_socket_acceptor::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="../basic_socket_acceptor/service.html" title="basic_socket_acceptor::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="../basic_socket_acceptor.html" title="basic_socket_acceptor"><code class="computeroutput"><span class="identifier">basic_socket_acceptor</span></code></a> class template
is used for accepting new socket connections.
</p>
<a name="asio.reference.local__stream_protocol.acceptor.thread_safety"></a><h6>
<a name="id1072406"></a>
<a class="link" href="acceptor.html#asio.reference.local__stream_protocol.acceptor.thread_safety">Thread
Safety</a>
</h6>
<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.local__stream_protocol.acceptor.example"></a><h6>
<a name="id1072457"></a>
<a class="link" href="acceptor.html#asio.reference.local__stream_protocol.acceptor.example">Example</a>
</h6>
<p>
Opening a socket acceptor with the SO_REUSEADDR option enabled:
</p>
<pre class="programlisting"><span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">acceptor</span> <span class="identifier">acceptor</span><span class="special">(</span><span class="identifier">io_service</span><span class="special">);</span>
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">endpoint</span> <span class="identifier">endpoint</span><span class="special">(</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">v4</span><span class="special">(),</span> <span class="identifier">port</span><span class="special">);</span>
<span class="identifier">acceptor</span><span class="special">.</span><span class="identifier">open</span><span class="special">(</span><span class="identifier">endpoint</span><span class="special">.</span><span class="identifier">protocol</span><span class="special">());</span>
<span class="identifier">acceptor</span><span class="special">.</span><span class="identifier">set_option</span><span class="special">(</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">acceptor</span><span class="special">::</span><span class="identifier">reuse_address</span><span class="special">(</span><span class="keyword">true</span><span class="special">));</span>
<span class="identifier">acceptor</span><span class="special">.</span><span class="identifier">bind</span><span class="special">(</span><span class="identifier">endpoint</span><span class="special">);</span>
<span class="identifier">acceptor</span><span class="special">.</span><span class="identifier">listen</span><span class="special">();</span>
</pre>
<a name="asio.reference.local__stream_protocol.acceptor.requirements"></a><h6>
<a name="id1072785"></a>
<a class="link" href="acceptor.html#asio.reference.local__stream_protocol.acceptor.requirements">Requirements</a>
</h6>
<p>
<span class="bold"><strong>Header: </strong></span><code class="literal">asio/local/stream_protocol.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>
</div></td>
</tr></table>
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