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<title>Daytime.2 - A synchronous TCP daytime server</title>
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<a name="boost_asio.tutorial.tutdaytime2"></a><a class="link" href="tutdaytime2.html" title="Daytime.2 - A synchronous TCP daytime server">Daytime.2 - A synchronous
      TCP daytime server</a>
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<p>
        This tutorial program shows how to use asio to implement a server application
        with TCP.
      </p>
<pre class="programlisting">#include &lt;ctime&gt;
#include &lt;iostream&gt;
#include &lt;string&gt;
#include &lt;boost/asio.hpp&gt;

using boost::asio::ip::tcp;
</pre>
<p>
        We define the function <code class="computeroutput">make_daytime_string()</code> to create the string
        to be sent back to the client. This function will be reused in all of our
        daytime server applications.
      </p>
<p>
        A <a class="link" href="../reference/ip__tcp/acceptor.html" title="ip::tcp::acceptor">ip::tcp::acceptor</a>
        object needs to be created to listen for new connections. It is initialised
        to listen on TCP port 13, for IP version 4.
      </p>
<p>
        This is an iterative server, which means that it will handle one connection
        at a time. Create a socket that will represent the connection to the client,
        and then wait for a connection.
      </p>
<p>
        A client is accessing our service. Determine the current time and transfer
        this information to the client.
      </p>
<p>
        Finally, handle any exceptions.
      </p>
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        See the <a class="link" href="tutdaytime2/src.html" title="Source listing for Daytime.2">full source listing</a>
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        Previous: <a class="link" href="tutdaytime1.html" title="Daytime.1 - A synchronous TCP daytime client">Daytime.1 - A synchronous
        TCP daytime client</a>
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        Next: <a class="link" href="tutdaytime3.html" title="Daytime.3 - An asynchronous TCP daytime server">Daytime.3 - An asynchronous
        TCP daytime server</a>
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        Distributed under the Boost Software License, Version 1.0. (See accompanying
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