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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.overview.networking.iostreams"></a><a class="link" href="iostreams.html" title="Socket Iostreams"> Socket Iostreams</a>
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<p>
Asio includes classes that implement iostreams on top of sockets. These
hide away the complexities associated with endpoint resolution, protocol
independence, etc. To create a connection one might simply write:
</p>
<pre class="programlisting"><span class="identifier">ip</span><span class="special">::</span><span class="identifier">tcp</span><span class="special">::</span><span class="identifier">iostream</span> <span class="identifier">stream</span><span class="special">(</span><span class="string">"www.boost.org"</span><span class="special">,</span> <span class="string">"http"</span><span class="special">);</span>
<span class="keyword">if</span> <span class="special">(!</span><span class="identifier">stream</span><span class="special">)</span>
<span class="special">{</span>
<span class="comment">// Can't connect.
</span><span class="special">}</span>
</pre>
<p>
The iostream class can also be used in conjunction with an acceptor to
create simple servers. For example:
</p>
<pre class="programlisting"><span class="identifier">io_service</span> <span class="identifier">ios</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">tcp</span><span class="special">::</span><span class="identifier">v4</span><span class="special">(),</span> <span class="number">80</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">ios</span><span class="special">,</span> <span class="identifier">endpoint</span><span class="special">);</span>
<span class="keyword">for</span> <span class="special">(;;)</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">iostream</span> <span class="identifier">stream</span><span class="special">;</span>
<span class="identifier">acceptor</span><span class="special">.</span><span class="identifier">accept</span><span class="special">(*</span><span class="identifier">stream</span><span class="special">.</span><span class="identifier">rdbuf</span><span class="special">());</span>
<span class="special">...</span>
<span class="special">}</span>
</pre>
<a name="asio.overview.networking.iostreams.see_also"></a><h6>
<a name="id482550"></a>
<a class="link" href="iostreams.html#asio.overview.networking.iostreams.see_also">See Also</a>
</h6>
<p>
<a class="link" href="../../reference/ip__tcp/iostream.html" title="ip::tcp::iostream">ip::tcp::iostream</a>,
<a class="link" href="../../reference/basic_socket_iostream.html" title="basic_socket_iostream">basic_socket_iostream</a>,
<a class="link" href="../../examples.html#asio.examples.iostreams">iostreams examples</a>.
</p>
<a name="asio.overview.networking.iostreams.notes"></a><h6>
<a name="id482596"></a>
<a class="link" href="iostreams.html#asio.overview.networking.iostreams.notes">Notes</a>
</h6>
<p>
These iostream templates only support <code class="computeroutput"><span class="keyword">char</span></code>,
not <code class="computeroutput"><span class="keyword">wchar_t</span></code>, and do not perform
any code conversion.
</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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