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| <p> |
| <a class="indexterm" name="id1317162"></a> |
| Socket option to permit sending of broadcast messages. |
| </p> |
| <pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <span class="identifier">broadcast</span><span class="special">;</span> |
| </pre> |
| <p> |
| Implements the SOL_SOCKET/SO_BROADCAST socket option. |
| </p> |
| <a name="boost_asio.reference.socket_base.broadcast.examples"></a><h6> |
| <a name="id1317212"></a> |
| <a class="link" href="broadcast.html#boost_asio.reference.socket_base.broadcast.examples">Examples</a> |
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| <p> |
| Setting the option: |
| </p> |
| <pre class="programlisting"><span class="identifier">boost</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">udp</span><span class="special">::</span><span class="identifier">socket</span> <span class="identifier">socket</span><span class="special">(</span><span class="identifier">io_service</span><span class="special">);</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">socket_base</span><span class="special">::</span><span class="identifier">broadcast</span> <span class="identifier">option</span><span class="special">(</span><span class="keyword">true</span><span class="special">);</span> |
| <span class="identifier">socket</span><span class="special">.</span><span class="identifier">set_option</span><span class="special">(</span><span class="identifier">option</span><span class="special">);</span> |
| </pre> |
| <p> |
| Getting the current option value: |
| </p> |
| <pre class="programlisting"><span class="identifier">boost</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">udp</span><span class="special">::</span><span class="identifier">socket</span> <span class="identifier">socket</span><span class="special">(</span><span class="identifier">io_service</span><span class="special">);</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">socket_base</span><span class="special">::</span><span class="identifier">broadcast</span> <span class="identifier">option</span><span class="special">;</span> |
| <span class="identifier">socket</span><span class="special">.</span><span class="identifier">get_option</span><span class="special">(</span><span class="identifier">option</span><span class="special">);</span> |
| <span class="keyword">bool</span> <span class="identifier">is_set</span> <span class="special">=</span> <span class="identifier">option</span><span class="special">.</span><span class="identifier">value</span><span class="special">();</span> |
| </pre> |
| <a name="boost_asio.reference.socket_base.broadcast.requirements"></a><h6> |
| <a name="id1317565"></a> |
| <a class="link" href="broadcast.html#boost_asio.reference.socket_base.broadcast.requirements">Requirements</a> |
| </h6> |
| <p> |
| <span class="bold"><strong>Header: </strong></span><code class="literal">boost/asio/socket_base.hpp</code> |
| </p> |
| <p> |
| <span class="bold"><strong>Convenience header: </strong></span><code class="literal">boost/asio.hpp</code> |
| </p> |
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| <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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