<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Wt examples: /home/koen/project/wt/public-git/wt/examples/simplechat/SimpleChatServer.C Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">Wt examples  <span id="projectnumber">3.2.3</span> </div> </td> </tr> </tbody> </table> </div> <!-- Generated by Doxygen 1.7.5.1 --> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="namespaces.html"><span>Namespaces</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div id="navrow2" class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul> </div> <div class="header"> <div class="headertitle"> <div class="title">/home/koen/project/wt/public-git/wt/examples/simplechat/SimpleChatServer.C</div> </div> </div> <div class="contents"> <a href="SimpleChatServer_8C.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> <a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2008 Emweb bvba, Heverlee, Belgium.</span> <a name="l00003"></a>00003 <span class="comment"> *</span> <a name="l00004"></a>00004 <span class="comment"> * See the LICENSE file for terms of use.</span> <a name="l00005"></a>00005 <span class="comment"> */</span> <a name="l00006"></a>00006 <a name="l00007"></a>00007 <span class="preprocessor">#include "<a class="code" href="SimpleChatServer_8h.html">SimpleChatServer.h</a>"</span> <a name="l00008"></a>00008 <span class="preprocessor">#include <Wt/WServer></span> <a name="l00009"></a>00009 <a name="l00010"></a>00010 <span class="preprocessor">#include <iostream></span> <a name="l00011"></a>00011 <span class="preprocessor">#include <boost/lexical_cast.hpp></span> <a name="l00012"></a>00012 <a name="l00013"></a>00013 <span class="keyword">using namespace </span>Wt; <a name="l00014"></a>00014 <a name="l00015"></a><a class="code" href="classChatEvent.html#a459911a1ba1c3e793c6c797e534691b7">00015</a> <span class="keyword">const</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a> <a class="code" href="classChatEvent.html#a459911a1ba1c3e793c6c797e534691b7" title="Get the message formatted as HTML, rendered for the given user.">ChatEvent::formattedHTML</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a>& user, <a name="l00016"></a>00016 <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/namespaceWt.html#a140dea437d52d3d7c438ea3bd16a1480">TextFormat</a> format)<span class="keyword"> const</span> <a name="l00017"></a>00017 <span class="keyword"></span>{ <a name="l00018"></a>00018 <span class="keywordflow">switch</span> (type_) { <a name="l00019"></a>00019 <span class="keywordflow">case</span> Login: <a name="l00020"></a>00020 <span class="keywordflow">return</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html#a17afc7c43b5b7a710047be4a2c639575">WString::fromUTF8</a>(<span class="stringliteral">"<span class='chat-info'>"</span>) <a name="l00021"></a>00021 + <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a6cd1b8a84c7aaf72e5d44cb47ae90e9c">WWebWidget::escapeText</a>(user_) + <span class="stringliteral">" joined.</span>"</span>; <a name="l00022"></a>00022 <span class="keywordflow">case</span> Logout: <a name="l00023"></a>00023 <span class="keywordflow">return</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html#a17afc7c43b5b7a710047be4a2c639575">WString::fromUTF8</a>(<span class="stringliteral">"<span class='chat-info'>"</span>) <a name="l00024"></a>00024 + ((user == user_) ? <a name="l00025"></a>00025 <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html#a17afc7c43b5b7a710047be4a2c639575">WString::fromUTF8</a>(<span class="stringliteral">"You"</span>) : <a name="l00026"></a>00026 <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a6cd1b8a84c7aaf72e5d44cb47ae90e9c">WWebWidget::escapeText</a>(user_)) <a name="l00027"></a>00027 + <span class="stringliteral">" logged out.</span>"</span>; <a name="l00028"></a>00028 <span class="keywordflow">case</span> Rename: <a name="l00029"></a>00029 <span class="keywordflow">return</span> <span class="stringliteral">"<span class='chat-info'>"</span> <a name="l00030"></a>00030 + ((user == data_ || user == user_) ? <a name="l00031"></a>00031 <span class="stringliteral">"You are"</span> : <a name="l00032"></a>00032 (<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a6cd1b8a84c7aaf72e5d44cb47ae90e9c">WWebWidget::escapeText</a>(user_) + <span class="stringliteral">" is"</span>)) <a name="l00033"></a>00033 + <span class="stringliteral">" now known as "</span> + <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a6cd1b8a84c7aaf72e5d44cb47ae90e9c">WWebWidget::escapeText</a>(data_) + <span class="stringliteral">".</span>"</span>; <a name="l00034"></a>00034 <span class="keywordflow">case</span> Message:{ <a name="l00035"></a>00035 <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a> result; <a name="l00036"></a>00036 <a name="l00037"></a>00037 result = <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a>(<span class="stringliteral">"<span class='"</span>) <a name="l00038"></a>00038 + ((user == user_) ? <a name="l00039"></a>00039 <span class="stringliteral">"chat-self"</span> : <a name="l00040"></a>00040 <span class="stringliteral">"chat-user"</span>) <a name="l00041"></a>00041 + <span class="stringliteral">"'>"</span> + <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a6cd1b8a84c7aaf72e5d44cb47ae90e9c">WWebWidget::escapeText</a>(user_) + <span class="stringliteral">":</span>"</span>; <a name="l00042"></a>00042 <a name="l00043"></a>00043 <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a> msg <a name="l00044"></a>00044 = (format == <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/namespaceWt.html#a140dea437d52d3d7c438ea3bd16a1480a847ab5a73b906fea275bd16877b420a4">XHTMLText</a> ? message_ : <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a6cd1b8a84c7aaf72e5d44cb47ae90e9c">WWebWidget::escapeText</a>(message_)); <a name="l00045"></a>00045 <a name="l00046"></a>00046 <span class="keywordflow">if</span> (message_.toUTF8().find(user.<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html#a159d088da6e8f2be1035b2341889254c">toUTF8</a>()) != std::string::npos) <a name="l00047"></a>00047 <span class="keywordflow">return</span> result + <span class="stringliteral">"<span class='chat-highlight'>"</span> + msg + <span class="stringliteral">"</span>"</span>; <a name="l00048"></a>00048 <span class="keywordflow">else</span> <a name="l00049"></a>00049 <span class="keywordflow">return</span> result + msg; <a name="l00050"></a>00050 } <a name="l00051"></a>00051 <span class="keywordflow">default</span>: <a name="l00052"></a>00052 <span class="keywordflow">return</span> <span class="stringliteral">""</span>; <a name="l00053"></a>00053 } <a name="l00054"></a>00054 } <a name="l00055"></a>00055 <a name="l00056"></a>00056 <a name="l00057"></a><a class="code" href="classSimpleChatServer.html#a2cf35cb3b79c6a3d3815df92b25b713e">00057</a> <a class="code" href="classSimpleChatServer.html#a2cf35cb3b79c6a3d3815df92b25b713e" title="Create a new chat server.">SimpleChatServer::SimpleChatServer</a>(<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WServer.html">WServer</a>& server) <a name="l00058"></a>00058 : server_(server) <a name="l00059"></a>00059 { } <a name="l00060"></a>00060 <a name="l00061"></a><a class="code" href="classSimpleChatServer.html#a916cec08c2aeb2d2ccf413e9c9a45036">00061</a> <span class="keywordtype">bool</span> <a class="code" href="classSimpleChatServer.html#a916cec08c2aeb2d2ccf413e9c9a45036" title="Connects to the chat server.">SimpleChatServer::connect</a>(<a class="code" href="classSimpleChatServer_1_1Client.html">Client</a> *client, <a name="l00062"></a>00062 <span class="keyword">const</span> <a class="code" href="group__chatexample.html#ga0b33bac2811bf39b0ea9412e91c3d4e7">ChatEventCallback</a>& handleEvent) <a name="l00063"></a>00063 { <a name="l00064"></a>00064 boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>); <a name="l00065"></a>00065 <a name="l00066"></a>00066 <span class="keywordflow">if</span> (<a class="code" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a>.count(client) == 0) { <a name="l00067"></a>00067 <a class="code" href="structSimpleChatServer_1_1ClientInfo.html">ClientInfo</a> clientInfo; <a name="l00068"></a>00068 <a name="l00069"></a>00069 clientInfo.<a class="code" href="structSimpleChatServer_1_1ClientInfo.html#a0bf0cce3b1da1a9de0a5073b3002f167">sessionId</a> = WApplication::instance()->sessionId(); <a name="l00070"></a>00070 clientInfo.<a class="code" href="structSimpleChatServer_1_1ClientInfo.html#ae410d9888b231e77ad48361e2da519b6">eventCallback</a> = handleEvent; <a name="l00071"></a>00071 <a name="l00072"></a>00072 <a class="code" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a>[client] = clientInfo; <a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00075"></a>00075 } <span class="keywordflow">else</span> <a name="l00076"></a>00076 <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00077"></a>00077 } <a name="l00078"></a>00078 <a name="l00079"></a><a class="code" href="classSimpleChatServer.html#a070e07e1a2a5ec5ecc4e944a761256c9">00079</a> <span class="keywordtype">bool</span> <a class="code" href="classSimpleChatServer.html#a070e07e1a2a5ec5ecc4e944a761256c9" title="Disconnect from the chat server.">SimpleChatServer::disconnect</a>(<a class="code" href="classSimpleChatServer_1_1Client.html">Client</a> *client) <a name="l00080"></a>00080 { <a name="l00081"></a>00081 boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>); <a name="l00082"></a>00082 <a name="l00083"></a>00083 <span class="keywordflow">return</span> <a class="code" href="classSimpleChatServer.html#ae04169217cc74765f5d08fff55e8ee26">clients_</a>.erase(client) == 1; <a name="l00084"></a>00084 } <a name="l00085"></a>00085 <a name="l00086"></a><a class="code" href="classSimpleChatServer.html#ada0ab17464e1711ca15f30b381ede57c">00086</a> <span class="keywordtype">bool</span> <a class="code" href="classSimpleChatServer.html#ada0ab17464e1711ca15f30b381ede57c" title="Try to login with given user name.">SimpleChatServer::login</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a>& user) <a name="l00087"></a>00087 { <a name="l00088"></a>00088 boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>); <a name="l00089"></a>00089 <a name="l00090"></a>00090 <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 name="l00091"></a>00091 <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.insert(user); <a name="l00092"></a>00092 <a name="l00093"></a>00093 <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)); <a name="l00094"></a>00094 <a name="l00095"></a>00095 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00096"></a>00096 } <span class="keywordflow">else</span> <a name="l00097"></a>00097 <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00098"></a>00098 } <a name="l00099"></a>00099 <a name="l00100"></a><a class="code" href="classSimpleChatServer.html#a5d376e3ff441f24843be648dd420e027">00100</a> <span class="keywordtype">void</span> <a class="code" href="classSimpleChatServer.html#a5d376e3ff441f24843be648dd420e027" title="Logout from the server.">SimpleChatServer::logout</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a>& user) <a name="l00101"></a>00101 { <a name="l00102"></a>00102 boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>); <a name="l00103"></a>00103 <a name="l00104"></a>00104 UserSet::iterator i = <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.find(user); <a name="l00105"></a>00105 <a name="l00106"></a>00106 <span class="keywordflow">if</span> (i != <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.end()) { <a name="l00107"></a>00107 <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.erase(i); <a name="l00108"></a>00108 <a name="l00109"></a>00109 <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)); <a name="l00110"></a>00110 } <a name="l00111"></a>00111 } <a name="l00112"></a>00112 <a name="l00113"></a><a class="code" href="classSimpleChatServer.html#a0154462f2176611e8c44d93efe306283">00113</a> <span class="keywordtype">bool</span> <a class="code" href="classSimpleChatServer.html#a0154462f2176611e8c44d93efe306283" title="Changes the name.">SimpleChatServer::changeName</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a>& user, <span class="keyword">const</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a>& newUser) <a name="l00114"></a>00114 { <a name="l00115"></a>00115 <span class="keywordflow">if</span> (user == newUser) <a name="l00116"></a>00116 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00117"></a>00117 <a name="l00118"></a>00118 boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>); <a name="l00119"></a>00119 <a name="l00120"></a>00120 UserSet::iterator i = <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.find(user); <a name="l00121"></a>00121 <a name="l00122"></a>00122 <span class="keywordflow">if</span> (i != <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.end()) { <a name="l00123"></a>00123 <span class="keywordflow">if</span> (<a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.count(newUser) == 0) { <a name="l00124"></a>00124 <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.erase(i); <a name="l00125"></a>00125 <a class="code" href="classSimpleChatServer.html#ae6712308cbb1f6b1ff4024630ea1d20c">users_</a>.insert(newUser); <a name="l00126"></a>00126 <a name="l00127"></a>00127 <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)); <a name="l00128"></a>00128 <a name="l00129"></a>00129 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00130"></a>00130 } <span class="keywordflow">else</span> <a name="l00131"></a>00131 <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00132"></a>00132 } <span class="keywordflow">else</span> <a name="l00133"></a>00133 <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00134"></a>00134 } <a name="l00135"></a>00135 <a name="l00136"></a><a class="code" href="classSimpleChatServer.html#abf692567706118193111c2b2589c8d3f">00136</a> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a> <a class="code" href="classSimpleChatServer.html#abf692567706118193111c2b2589c8d3f" title="Get a suggestion for a guest user name.">SimpleChatServer::suggestGuest</a>() <a name="l00137"></a>00137 { <a name="l00138"></a>00138 boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>); <a name="l00139"></a>00139 <a name="l00140"></a>00140 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1;; ++i) { <a name="l00141"></a>00141 std::string s = <span class="stringliteral">"guest "</span> + boost::lexical_cast<std::string>(i); <a name="l00142"></a>00142 <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a> ss = s; <a name="l00143"></a>00143 <a name="l00144"></a>00144 <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()) <a name="l00145"></a>00145 <span class="keywordflow">return</span> ss; <a name="l00146"></a>00146 } <a name="l00147"></a>00147 } <a name="l00148"></a>00148 <a name="l00149"></a><a class="code" href="classSimpleChatServer.html#aab42074f7904397b3547a6df89c16d9d">00149</a> <span class="keywordtype">void</span> <a class="code" href="classSimpleChatServer.html#aab42074f7904397b3547a6df89c16d9d" title="Send a message on behalve of a user.">SimpleChatServer::sendMessage</a>(<span class="keyword">const</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a>& user, <span class="keyword">const</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a>& message) <a name="l00150"></a>00150 { <a name="l00151"></a>00151 <a class="code" href="classSimpleChatServer.html#a5038714fb4463072bd795fea419e6f09">postChatEvent</a>(<a class="code" href="classChatEvent.html" title="Encapsulate a chat event.">ChatEvent</a>(user, message)); <a name="l00152"></a>00152 } <a name="l00153"></a>00153 <a name="l00154"></a><a class="code" href="classSimpleChatServer.html#a5038714fb4463072bd795fea419e6f09">00154</a> <span class="keywordtype">void</span> <a class="code" href="classSimpleChatServer.html#a5038714fb4463072bd795fea419e6f09">SimpleChatServer::postChatEvent</a>(<span class="keyword">const</span> <a class="code" href="classChatEvent.html" title="Encapsulate a chat event.">ChatEvent</a>& event) <a name="l00155"></a>00155 { <a name="l00156"></a>00156 boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>); <a name="l00157"></a>00157 <a name="l00158"></a>00158 <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WApplication.html">WApplication</a> *app = WApplication::instance(); <a name="l00159"></a>00159 <a name="l00160"></a>00160 <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(); <a name="l00161"></a>00161 ++i) { <a name="l00162"></a>00162 <span class="comment">/*</span> <a name="l00163"></a>00163 <span class="comment"> * If the user corresponds to the current application, we directly</span> <a name="l00164"></a>00164 <span class="comment"> * call the call back method. This avoids an unnecessary delay for</span> <a name="l00165"></a>00165 <span class="comment"> * the update to the user causing the event.</span> <a name="l00166"></a>00166 <span class="comment"> *</span> <a name="l00167"></a>00167 <span class="comment"> * For other uses, we post it to their session. By posting the</span> <a name="l00168"></a>00168 <span class="comment"> * event, we avoid dead-lock scenarios, race conditions, and</span> <a name="l00169"></a>00169 <span class="comment"> * delivering the event to a session that is just about to be</span> <a name="l00170"></a>00170 <span class="comment"> * terminated.</span> <a name="l00171"></a>00171 <span class="comment"> */</span> <a name="l00172"></a>00172 <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) <a name="l00173"></a>00173 i->second.eventCallback(event); <a name="l00174"></a>00174 <span class="keywordflow">else</span> <a name="l00175"></a>00175 <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, <a name="l00176"></a>00176 boost::bind(i->second.eventCallback, event)); <a name="l00177"></a>00177 } <a name="l00178"></a>00178 } <a name="l00179"></a>00179 <a name="l00180"></a><a class="code" href="classSimpleChatServer.html#a40f5c6465b1edb44278be93c97a29a39">00180</a> <a class="code" href="classSimpleChatServer.html#a911329f24472ca7ed245ab18611488d4" title="Typedef for a collection of user names.">SimpleChatServer::UserSet</a> <a class="code" href="classSimpleChatServer.html#a40f5c6465b1edb44278be93c97a29a39" title="Get the users currently logged in.">SimpleChatServer::users</a>() <a name="l00181"></a>00181 { <a name="l00182"></a>00182 boost::recursive_mutex::scoped_lock lock(<a class="code" href="classSimpleChatServer.html#a91a994a5f6fb9879646dfd29f0b47556">mutex_</a>); <a name="l00183"></a>00183 <a name="l00184"></a>00184 <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>; <a name="l00185"></a>00185 <a name="l00186"></a>00186 <span class="keywordflow">return</span> result; <a name="l00187"></a>00187 } <a name="l00188"></a>00188 </pre></div></div> </div> <hr size="1"><address style="text-align: right; margin: 3px"><small> Generated on Thu Nov 1 2012 for <a href="http://www.webtoolkit.eu/wt">the C++ Web Toolkit (Wt)</a> by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" border="0" style="vertical-align: middle; display: inline-block; height: 2em"></a> 1.7.5.1</small></address> </body> </html>