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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Wt examples: SimpleChatServer Class Reference</title>
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<div id="projectname">Wt examples
 <span id="projectnumber">3.2.1</span>
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<div class="title">SimpleChatServer Class Reference<div class="ingroups"><a class="el" href="group__chatexample.html">Chat example</a></div></div> </div>
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<!-- doxytag: class="SimpleChatServer" -->
<p>A simple chat server.
<a href="classSimpleChatServer.html#details">More...</a></p>
<p><code>#include <<a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a>></code></p>
<p><a href="classSimpleChatServer-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer_1_1Client.html">Client</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structSimpleChatServer_1_1ClientInfo.html">ClientInfo</a></td></tr>
<tr><td colspan="2"><h2><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef std::set< <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a911329f24472ca7ed245ab18611488d4">UserSet</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Typedef for a collection of user names. <a href="#a911329f24472ca7ed245ab18611488d4"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a2cf35cb3b79c6a3d3815df92b25b713e">SimpleChatServer</a> (<a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WServer.html">Wt::WServer</a> &server)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create a new chat server. <a href="#a2cf35cb3b79c6a3d3815df92b25b713e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a916cec08c2aeb2d2ccf413e9c9a45036">connect</a> (<a class="el" href="classSimpleChatServer_1_1Client.html">Client</a> *client, const <a class="el" href="group__chatexample.html#ga0b33bac2811bf39b0ea9412e91c3d4e7">ChatEventCallback</a> &handleEvent)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Connects to the chat server. <a href="#a916cec08c2aeb2d2ccf413e9c9a45036"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a070e07e1a2a5ec5ecc4e944a761256c9">disconnect</a> (<a class="el" href="classSimpleChatServer_1_1Client.html">Client</a> *client)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Disconnect from the chat server. <a href="#a070e07e1a2a5ec5ecc4e944a761256c9"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#ada0ab17464e1711ca15f30b381ede57c">login</a> (const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> &user)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Try to login with given user name. <a href="#ada0ab17464e1711ca15f30b381ede57c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a5d376e3ff441f24843be648dd420e027">logout</a> (const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> &user)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Logout from the server. <a href="#a5d376e3ff441f24843be648dd420e027"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a0154462f2176611e8c44d93efe306283">changeName</a> (const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> &user, const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> &newUser)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Changes the name. <a href="#a0154462f2176611e8c44d93efe306283"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#abf692567706118193111c2b2589c8d3f">suggestGuest</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get a suggestion for a guest user name. <a href="#abf692567706118193111c2b2589c8d3f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#aab42074f7904397b3547a6df89c16d9d">sendMessage</a> (const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> &user, const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> &message)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Send a message on behalve of a user. <a href="#aab42074f7904397b3547a6df89c16d9d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classSimpleChatServer.html#a911329f24472ca7ed245ab18611488d4">UserSet</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a40f5c6465b1edb44278be93c97a29a39">users</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the users currently logged in. <a href="#a40f5c6465b1edb44278be93c97a29a39"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pri-types"></a>
Private Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef std::map< <a class="el" href="classSimpleChatServer_1_1Client.html">Client</a> <br class="typebreak"/>
*, <a class="el" href="structSimpleChatServer_1_1ClientInfo.html">ClientInfo</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a2a3c1f56445447ee41294bd2b339a8ed">ClientMap</a></td></tr>
<tr><td colspan="2"><h2><a name="pri-methods"></a>
Private Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a5038714fb4463072bd795fea419e6f09">postChatEvent</a> (const <a class="el" href="classChatEvent.html">ChatEvent</a> &event)</td></tr>
<tr><td colspan="2"><h2><a name="pri-attribs"></a>
Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WServer.html">Wt::WServer</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#ab63a496e6fdfebbb2ca3ab9dfaace70b">server_</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">boost::recursive_mutex </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classSimpleChatServer.html#a2a3c1f56445447ee41294bd2b339a8ed">ClientMap</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classSimpleChatServer.html#a911329f24472ca7ed245ab18611488d4">UserSet</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A simple chat server. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8h_source.html#l00085">85</a> of file <a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a>.</p>
</div><hr/><h2>Member Typedef Documentation</h2>
<a class="anchor" id="a2a3c1f56445447ee41294bd2b339a8ed"></a><!-- doxytag: member="SimpleChatServer::ClientMap" ref="a2a3c1f56445447ee41294bd2b339a8ed" args="" -->
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<td class="memname">typedef std::map<<a class="el" href="classSimpleChatServer_1_1Client.html">Client</a> *, <a class="el" href="structSimpleChatServer_1_1ClientInfo.html">ClientInfo</a>> <a class="el" href="classSimpleChatServer.html#a2a3c1f56445447ee41294bd2b339a8ed">SimpleChatServer::ClientMap</a><code> [private]</code></td>
</tr>
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</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="SimpleChatServer_8h_source.html#l00152">152</a> of file <a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a>.</p>
</div>
</div>
<a class="anchor" id="a911329f24472ca7ed245ab18611488d4"></a><!-- doxytag: member="SimpleChatServer::UserSet" ref="a911329f24472ca7ed245ab18611488d4" args="" -->
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<td class="memname">typedef std::set<<a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a>> <a class="el" href="classSimpleChatServer.html#a911329f24472ca7ed245ab18611488d4">SimpleChatServer::UserSet</a></td>
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<div class="memdoc">
<p>Typedef for a collection of user names. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8h_source.html#l00140">140</a> of file <a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a>.</p>
</div>
</div>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a2cf35cb3b79c6a3d3815df92b25b713e"></a><!-- doxytag: member="SimpleChatServer::SimpleChatServer" ref="a2cf35cb3b79c6a3d3815df92b25b713e" args="(Wt::WServer &server)" -->
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<td class="memname">SimpleChatServer::SimpleChatServer </td>
<td>(</td>
<td class="paramtype"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WServer.html">Wt::WServer</a> & </td>
<td class="paramname"><em>server</em></td><td>)</td>
<td></td>
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<div class="memdoc">
<p>Create a new chat server. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00057">57</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment"> : <a class="code" href="classSimpleChatServer.html#ab63a496e6fdfebbb2ca3ab9dfaace70b">server_</a>(server)
{ }
</pre></div>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a0154462f2176611e8c44d93efe306283"></a><!-- doxytag: member="SimpleChatServer::changeName" ref="a0154462f2176611e8c44d93efe306283" args="(const Wt::WString &user, const Wt::WString &newUser)" -->
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<td class="memname">bool SimpleChatServer::changeName </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> & </td>
<td class="paramname"><em>user</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> & </td>
<td class="paramname"><em>newUser</em> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<div class="memdoc">
<p>Changes the name. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00113">113</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
<span class="keywordflow">if</span> (user == newUser)
<span class="keywordflow">return</span> <span class="keyword">true</span>;
boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>);
UserSet::iterator i = <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.find(user);
<span class="keywordflow">if</span> (i != <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.end()) {
<span class="keywordflow">if</span> (<a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.count(newUser) == 0) {
<a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.erase(i);
<a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.insert(newUser);
<a class="code" href="classSimpleChatServer.html#a5038714fb4463072bd795fea419e6f09">postChatEvent</a>(<a class="code" href="classChatEvent.html" title="Encapsulate a chat event.">ChatEvent</a>(<a class="code" href="classChatEvent.html#afa84446dae17c08fe15cf932fc0b7d61ab168d89affa0c72ba9a37d2881479ed8">ChatEvent::Rename</a>, user, newUser));
<span class="keywordflow">return</span> <span class="keyword">true</span>;
} <span class="keywordflow">else</span>
<span class="keywordflow">return</span> <span class="keyword">false</span>;
} <span class="keywordflow">else</span>
<span class="keywordflow">return</span> <span class="keyword">false</span>;
}
</pre></div>
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<a class="anchor" id="a916cec08c2aeb2d2ccf413e9c9a45036"></a><!-- doxytag: member="SimpleChatServer::connect" ref="a916cec08c2aeb2d2ccf413e9c9a45036" args="(Client *client, const ChatEventCallback &handleEvent)" -->
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<td class="memname">bool SimpleChatServer::connect </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classSimpleChatServer_1_1Client.html">Client</a> * </td>
<td class="paramname"><em>client</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="group__chatexample.html#ga0b33bac2811bf39b0ea9412e91c3d4e7">ChatEventCallback</a> & </td>
<td class="paramname"><em>handleEvent</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Connects to the chat server. </p>
<p>The passed callback method is posted to when a new chat event is received.</p>
<p>Returns whether the client has been connected (or false if the client was already connected). </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00061">61</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>);
<span class="keywordflow">if</span> (<a class="code" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a>.count(client) == 0) {
ClientInfo clientInfo;
clientInfo.sessionId = WApplication::instance()->sessionId();
clientInfo.eventCallback = handleEvent;
<a class="code" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a>[client] = clientInfo;
<span class="keywordflow">return</span> <span class="keyword">true</span>;
} <span class="keywordflow">else</span>
<span class="keywordflow">return</span> <span class="keyword">false</span>;
}
</pre></div>
</div>
</div>
<a class="anchor" id="a070e07e1a2a5ec5ecc4e944a761256c9"></a><!-- doxytag: member="SimpleChatServer::disconnect" ref="a070e07e1a2a5ec5ecc4e944a761256c9" args="(Client *client)" -->
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<td class="memname">bool SimpleChatServer::disconnect </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classSimpleChatServer_1_1Client.html">Client</a> * </td>
<td class="paramname"><em>client</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Disconnect from the chat server. </p>
<p>Returns whether the client has been disconnected (or false if the client was not connected). </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00079">79</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>);
<span class="keywordflow">return</span> <a class="code" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a>.erase(client) == 1;
}
</pre></div>
</div>
</div>
<a class="anchor" id="ada0ab17464e1711ca15f30b381ede57c"></a><!-- doxytag: member="SimpleChatServer::login" ref="ada0ab17464e1711ca15f30b381ede57c" args="(const Wt::WString &user)" -->
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<td class="memname">bool SimpleChatServer::login </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> & </td>
<td class="paramname"><em>user</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Try to login with given user name. </p>
<p>Returns false if the login was not successful. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00086">86</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>);
<span class="keywordflow">if</span> (<a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.find(user) == <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.end()) {
<a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.insert(user);
<a class="code" href="classSimpleChatServer.html#a5038714fb4463072bd795fea419e6f09">postChatEvent</a>(<a class="code" href="classChatEvent.html" title="Encapsulate a chat event.">ChatEvent</a>(<a class="code" href="classChatEvent.html#afa84446dae17c08fe15cf932fc0b7d61a5173cb4baa818f95af4604d7a01e3ae6">ChatEvent::Login</a>, user));
<span class="keywordflow">return</span> <span class="keyword">true</span>;
} <span class="keywordflow">else</span>
<span class="keywordflow">return</span> <span class="keyword">false</span>;
}
</pre></div>
</div>
</div>
<a class="anchor" id="a5d376e3ff441f24843be648dd420e027"></a><!-- doxytag: member="SimpleChatServer::logout" ref="a5d376e3ff441f24843be648dd420e027" args="(const Wt::WString &user)" -->
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<td class="memname">void SimpleChatServer::logout </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> & </td>
<td class="paramname"><em>user</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Logout from the server. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00100">100</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>);
UserSet::iterator i = <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.find(user);
<span class="keywordflow">if</span> (i != <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.end()) {
<a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.erase(i);
<a class="code" href="classSimpleChatServer.html#a5038714fb4463072bd795fea419e6f09">postChatEvent</a>(<a class="code" href="classChatEvent.html" title="Encapsulate a chat event.">ChatEvent</a>(<a class="code" href="classChatEvent.html#afa84446dae17c08fe15cf932fc0b7d61aa8b11c1512738c200b2cfe1facd1c171">ChatEvent::Logout</a>, user));
}
}
</pre></div>
</div>
</div>
<a class="anchor" id="a5038714fb4463072bd795fea419e6f09"></a><!-- doxytag: member="SimpleChatServer::postChatEvent" ref="a5038714fb4463072bd795fea419e6f09" args="(const ChatEvent &event)" -->
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<td class="memname">void SimpleChatServer::postChatEvent </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classChatEvent.html">ChatEvent</a> & </td>
<td class="paramname"><em>event</em></td><td>)</td>
<td><code> [private]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00154">154</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>);
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WApplication.html">WApplication</a> *app = WApplication::instance();
<span class="keywordflow">for</span> (ClientMap::const_iterator i = <a class="code" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a>.begin(); i != <a class="code" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a>.end();
++i) {
<span class="comment">/*</span>
<span class="comment"> * If the user corresponds to the current application, we directly</span>
<span class="comment"> * call the call back method. This avoids an unnecessary delay for</span>
<span class="comment"> * the update to the user causing the event.</span>
<span class="comment"> *</span>
<span class="comment"> * For other uses, we post it to their session. By posting the</span>
<span class="comment"> * event, we avoid dead-lock scenarios, race conditions, and</span>
<span class="comment"> * delivering the event to a session that is just about to be</span>
<span class="comment"> * terminated.</span>
<span class="comment"> */</span>
<span class="keywordflow">if</span> (app && app-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WApplication.html#ab55c625a3197fec416544be8ad1529af">sessionId</a>() == i->second.sessionId)
i->second.eventCallback(event);
<span class="keywordflow">else</span>
<a class="code" href="classSimpleChatServer.html#ab63a496e6fdfebbb2ca3ab9dfaace70b">server_</a>.<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WServer.html#a6115cc9ad6ec28e55fb85e32a045df88">post</a>(i->second.sessionId,
boost::bind(i->second.eventCallback, event));
}
}
</pre></div>
</div>
</div>
<a class="anchor" id="aab42074f7904397b3547a6df89c16d9d"></a><!-- doxytag: member="SimpleChatServer::sendMessage" ref="aab42074f7904397b3547a6df89c16d9d" args="(const Wt::WString &user, const Wt::WString &message)" -->
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<td class="memname">void SimpleChatServer::sendMessage </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> & </td>
<td class="paramname"><em>user</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">Wt::WString</a> & </td>
<td class="paramname"><em>message</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Send a message on behalve of a user. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00149">149</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
<a class="code" href="classSimpleChatServer.html#a5038714fb4463072bd795fea419e6f09">postChatEvent</a>(<a class="code" href="classChatEvent.html" title="Encapsulate a chat event.">ChatEvent</a>(user, message));
}
</pre></div>
</div>
</div>
<a class="anchor" id="abf692567706118193111c2b2589c8d3f"></a><!-- doxytag: member="SimpleChatServer::suggestGuest" ref="abf692567706118193111c2b2589c8d3f" args="()" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a> SimpleChatServer::suggestGuest </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get a suggestion for a guest user name. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00136">136</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>);
<span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1;; ++i) {
std::string s = <span class="stringliteral">"guest "</span> + boost::lexical_cast<std::string>(i);
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a> ss = s;
<span class="keywordflow">if</span> (<a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.find(ss) == <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.end())
<span class="keywordflow">return</span> ss;
}
}
</pre></div>
</div>
</div>
<a class="anchor" id="a40f5c6465b1edb44278be93c97a29a39"></a><!-- doxytag: member="SimpleChatServer::users" ref="a40f5c6465b1edb44278be93c97a29a39" args="()" -->
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<td class="memname"><a class="el" href="classSimpleChatServer.html#a911329f24472ca7ed245ab18611488d4">SimpleChatServer::UserSet</a> SimpleChatServer::users </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Get the users currently logged in. </p>
<p>Definition at line <a class="el" href="SimpleChatServer_8C_source.html#l00180">180</a> of file <a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a>.</p>
<div class="fragment"><pre class="fragment">{
boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>);
<a class="code" href="classSimpleChatServer.html#a911329f24472ca7ed245ab18611488d4" title="Typedef for a collection of user names.">UserSet</a> result = <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>;
<span class="keywordflow">return</span> result;
}
</pre></div>
</div>
</div>
<hr/><h2>Member Data Documentation</h2>
<a class="anchor" id="ae04169217cc74765f5d08fff55e8ee26"></a><!-- doxytag: member="SimpleChatServer::clients_" ref="ae04169217cc74765f5d08fff55e8ee26" args="" -->
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<td class="memname"><a class="el" href="classSimpleChatServer.html#a2a3c1f56445447ee41294bd2b339a8ed">ClientMap</a> <a class="el" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">SimpleChatServer::clients_</a><code> [private]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="SimpleChatServer_8h_source.html#l00156">156</a> of file <a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a>.</p>
</div>
</div>
<a class="anchor" id="a91a994a5f6fb9879646dfd29f0b47556"></a><!-- doxytag: member="SimpleChatServer::mutex_" ref="a91a994a5f6fb9879646dfd29f0b47556" args="" -->
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<td class="memname">boost::recursive_mutex <a class="el" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">SimpleChatServer::mutex_</a><code> [private]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="SimpleChatServer_8h_source.html#l00155">155</a> of file <a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a>.</p>
</div>
</div>
<a class="anchor" id="ab63a496e6fdfebbb2ca3ab9dfaace70b"></a><!-- doxytag: member="SimpleChatServer::server_" ref="ab63a496e6fdfebbb2ca3ab9dfaace70b" args="" -->
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<td class="memname"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WServer.html">Wt::WServer</a>& <a class="el" href="classSimpleChatServer.html#ab63a496e6fdfebbb2ca3ab9dfaace70b">SimpleChatServer::server_</a><code> [private]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="SimpleChatServer_8h_source.html#l00154">154</a> of file <a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a>.</p>
</div>
</div>
<a class="anchor" id="ae6712308cbb1f6b1ff4024630ea1d20c"></a><!-- doxytag: member="SimpleChatServer::users_" ref="ae6712308cbb1f6b1ff4024630ea1d20c" args="" -->
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<td class="memname"><a class="el" href="classSimpleChatServer.html#a911329f24472ca7ed245ab18611488d4">UserSet</a> <a class="el" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">SimpleChatServer::users_</a><code> [private]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Definition at line <a class="el" href="SimpleChatServer_8h_source.html#l00157">157</a> of file <a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a>.</p>
</div>
</div>
<hr/>The documentation for this class was generated from the following files:<ul>
<li>/home/koen/project/wt/public-git/wt/examples/simplechat/<a class="el" href="SimpleChatServer_8h_source.html">SimpleChatServer.h</a></li>
<li>/home/koen/project/wt/public-git/wt/examples/simplechat/<a class="el" href="SimpleChatServer_8C_source.html">SimpleChatServer.C</a></li>
</ul>
</div>
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