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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/euserhlexample_8cpp_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
changeset 14 578be2adaf3e
parent 6 43e37759235e
permissions -rw-r--r--
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>TB9.2 Example Applications: examples/SysLibs/EUserHLExample/src/euserhlexample.cpp Source File</title>
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<link href="tabs.css" rel="stylesheet" type="text/css"/>
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<link href="doxygen.css" rel="stylesheet" type="text/css"/>
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</head>
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<body>
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<!-- Generated by Doxygen 1.6.2 -->
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<h1>examples/SysLibs/EUserHLExample/src/euserhlexample.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
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<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
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<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
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<a name="l00004"></a>00004 <span class="comment">// under the terms of &quot;Eclipse Public License v1.0&quot;</span>
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<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
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<a name="l00006"></a>00006 <span class="comment">// at the URL &quot;http://www.eclipse.org/legal/epl-v10.html&quot;.</span>
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<a name="l00007"></a>00007 <span class="comment">//</span>
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<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
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<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
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<a name="l00010"></a>00010 <span class="comment">//</span>
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<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
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<a name="l00012"></a>00012 <span class="comment">//</span>
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<a name="l00013"></a>00013 <span class="comment">// Description:</span>
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<a name="l00014"></a>00014 <span class="comment">//</span>
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<a name="l00015"></a>00015
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<a name="l00016"></a>00016 <span class="preprocessor">#include &lt;f32file.h&gt;</span>
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<a name="l00017"></a>00017 <span class="preprocessor">#include &lt;e32cons.h&gt;</span>
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<a name="l00018"></a>00018 <span class="preprocessor">#include &lt;euserhl.h&gt;</span>
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<a name="l00019"></a>00019
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<a name="l00020"></a>00020
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<a name="l00021"></a>00021 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtExample,<span class="stringliteral">&quot;EUsableExample\n&quot;</span>);
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<a name="l00022"></a>00022 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPressAnyKeyToContinue,<span class="stringliteral">&quot;Press any key to continue\n&quot;</span>);
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<a name="l00023"></a>00023
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<a name="l00024"></a>00024 CConsoleBase* gConsole;
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<a name="l00025"></a>00025
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<a name="l00032"></a>00032 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPath, <span class="stringliteral">&quot;c:\\a\\b\\c&quot;</span>);
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<a name="l00033"></a>00033 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KOne, <span class="stringliteral">&quot;One &quot;</span>);
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<a name="l00034"></a>00034 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTwo, <span class="stringliteral">&quot;Two &quot;</span>);
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<a name="l00035"></a>00035 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTesting, <span class="stringliteral">&quot;Testing &quot;</span>);
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<a name="l00036"></a>00036
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<a name="l00037"></a>00037 <span class="keywordtype">void</span> MaybeLeave()
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<a name="l00038"></a>00038         {
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<a name="l00039"></a>00039         <span class="comment">// Some code that may leave</span>
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<a name="l00040"></a>00040         }
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<a name="l00041"></a>00041
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<a name="l00042"></a>00042 HBufC* AllocateNameL(<span class="keyword">const</span> TDesC&amp; aDes)
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<a name="l00043"></a>00043         {
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<a name="l00044"></a>00044         <span class="keywordflow">return</span> aDes.AllocL();
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<a name="l00045"></a>00045         }
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<a name="l00046"></a>00046
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<a name="l00047"></a>00047 <span class="keywordtype">void</span> GetCurrentPath(TDes&amp; aDes)
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<a name="l00048"></a>00048         {
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<a name="l00049"></a>00049         aDes = KPath;
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<a name="l00050"></a>00050         }
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<a name="l00051"></a>00051
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<a name="l00052"></a>00052 <span class="keywordtype">void</span> GetCurrentPathString(LString&amp; aString)
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<a name="l00053"></a>00053         {
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<a name="l00054"></a>00054         aString = KPath; <span class="comment">// Will auto-grow if necessary, may leave</span>
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<a name="l00055"></a>00055         }
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<a name="l00056"></a>00056
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<a name="l00057"></a>00057 LString AppendCurrentPathStringL(LString aString)
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<a name="l00058"></a>00058         {
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<a name="l00059"></a>00059         <span class="comment">/*</span>
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<a name="l00060"></a>00060 <span class="comment">        This method accepts and returns LStrings by value. It works but</span>
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<a name="l00061"></a>00061 <span class="comment">        is not recommended due to the inherent inefficiencies.</span>
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<a name="l00062"></a>00062 <span class="comment">        */</span>
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<a name="l00063"></a>00063         LString result(aString);
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<a name="l00064"></a>00064         result += KPath;
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<a name="l00065"></a>00065         <span class="keywordflow">return</span> result;
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<a name="l00066"></a>00066         }
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<a name="l00067"></a>00067
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<a name="l00068"></a>00068 <span class="keyword">class </span>CTicker : <span class="keyword">public</span> CBase
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<a name="l00069"></a>00069         {
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<a name="l00070"></a>00070 <span class="keyword">public</span>:
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<a name="l00071"></a>00071         <span class="keywordtype">void</span> Tick() { ++iTicks; }
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<a name="l00072"></a>00072         <span class="keywordtype">void</span> Tock() { ++iTocks; }
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<a name="l00073"></a>00073
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<a name="l00074"></a>00074         <span class="keywordtype">void</span> Zap() { <span class="keyword">delete</span> <span class="keyword">this</span>; }
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<a name="l00075"></a>00075
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<a name="l00076"></a>00076 <span class="keyword">public</span>:
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<a name="l00077"></a>00077         TInt iTicks;
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<a name="l00078"></a>00078         TInt iTocks;
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<a name="l00079"></a>00079         };
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<a name="l00080"></a>00080
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<a name="l00081"></a>00081 <span class="comment">// Defines a custom pointer cleanup policy that calls the Zap member</span>
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<a name="l00082"></a>00082 <span class="keyword">class </span>TTickerZapStrategy
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<a name="l00083"></a>00083         {
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<a name="l00084"></a>00084 <span class="keyword">public</span>:
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<a name="l00085"></a>00085         <span class="keyword">static</span> <span class="keywordtype">void</span> Cleanup(CTicker* aPtr)
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<a name="l00086"></a>00086                 {
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<a name="l00087"></a>00087                 <span class="comment">/*</span>
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<a name="l00088"></a>00088 <span class="comment">                The general template/class scaffolding remains the same</span>
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<a name="l00089"></a>00089 <span class="comment">                for all custom cleanups, just this cleanup body varies</span>
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<a name="l00090"></a>00090 <span class="comment">                */</span>
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<a name="l00091"></a>00091                 aPtr-&gt;Zap();
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<a name="l00092"></a>00092                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPrintZapp, <span class="stringliteral">&quot;Zapped CTicker\n&quot;</span>);
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<a name="l00093"></a>00093                 gConsole-&gt;Printf(KTxtPrintZapp);
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<a name="l00094"></a>00094                 }
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<a name="l00095"></a>00095         };
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<a name="l00096"></a>00096
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<a name="l00097"></a>00097 <span class="keywordtype">void</span> RegisterTicker(CTicker&amp; aTicker)
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<a name="l00098"></a>00098         {
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   103
 
<a name="l00099"></a>00099         (void)aTicker;
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<a name="l00100"></a>00100         }
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   105
 
<a name="l00101"></a>00101
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<a name="l00102"></a>00102 <span class="keywordtype">void</span> RegisterTickerPtr(CTicker* aTicker)
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<a name="l00103"></a>00103         {
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<a name="l00104"></a>00104         (void)aTicker;
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<a name="l00105"></a>00105         }
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   110
 
<a name="l00106"></a>00106
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   111
 
<a name="l00107"></a>00107 <span class="keywordtype">void</span> TakeTickerOwnership(CTicker* aTicker)
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<a name="l00108"></a>00108         {
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<a name="l00109"></a>00109         <span class="keyword">delete</span> aTicker;
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<a name="l00110"></a>00110         }
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   115
 
<a name="l00111"></a>00111
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   116
 
<a name="l00112"></a>00112 <span class="keywordtype">void</span> RegisterTimer(RTimer&amp; aTimer)
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   117
 
<a name="l00113"></a>00113         {
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<a name="l00114"></a>00114         (void)aTimer;
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<a name="l00115"></a>00115         }
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<a name="l00116"></a>00116
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<a name="l00117"></a>00117 <span class="comment">// Defines a custom handle cleanup policy that calls Cancel() then Close()</span>
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<a name="l00118"></a>00118 <span class="keyword">class </span>TCancelClose
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<a name="l00119"></a>00119         {
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<a name="l00120"></a>00120 <span class="keyword">public</span>:
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<a name="l00121"></a>00121         <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
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<a name="l00122"></a>00122         <span class="keyword">static</span> <span class="keywordtype">void</span> Cleanup(T* aHandle)
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<a name="l00123"></a>00123                 {
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<a name="l00124"></a>00124                 <span class="comment">/*</span>
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<a name="l00125"></a>00125 <span class="comment">                The general template/class scaffolding remains the same</span>
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<a name="l00126"></a>00126 <span class="comment">                for all custom cleanups, just this cleanup body varies</span>
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<a name="l00127"></a>00127 <span class="comment">                */</span>
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<a name="l00128"></a>00128                 aHandle-&gt;Cancel();
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<a name="l00129"></a>00129                 aHandle-&gt;Close();
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<a name="l00130"></a>00130                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtCancel,<span class="stringliteral">&quot;Cancel Closed RTimer\n&quot;</span>);
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<a name="l00131"></a>00131                 gConsole-&gt;Printf(KTxtCancel);
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<a name="l00132"></a>00132                 }
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<a name="l00133"></a>00133         };
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<a name="l00134"></a>00134
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<a name="l00135"></a>00135 <span class="keywordtype">void</span> BespokeCleanupFunction(TAny* <span class="comment">/*aData*/</span>)
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<a name="l00136"></a>00136         {
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<a name="l00137"></a>00137         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtCleanup,<span class="stringliteral">&quot;BespokeCleanupFunction\n&quot;</span>);
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<a name="l00138"></a>00138         gConsole-&gt;Printf(KTxtCleanup);
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<a name="l00139"></a>00139         }
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<a name="l00140"></a>00140
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<a name="l00141"></a>00141 <span class="comment">// The walkthroughs themselves</span>
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<a name="l00142"></a>00142
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<a name="l00149"></a>00149 <span class="keyword">class </span>CStringUserTwoPhase : <span class="keyword">public</span> CBase
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<a name="l00150"></a>00150         {
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<a name="l00151"></a>00151 <span class="keyword">public</span>:
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<a name="l00152"></a>00152         <span class="keyword">static</span> CStringUserTwoPhase* NewL(<span class="keyword">const</span> TDesC&amp; aName)
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<a name="l00153"></a>00153                 {
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<a name="l00154"></a>00154                 <span class="comment">/*</span>
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<a name="l00155"></a>00155 <span class="comment">                We can use the resource management utility classes in</span>
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<a name="l00156"></a>00156 <span class="comment">                two-phase if we want.</span>
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<a name="l00157"></a>00157 <span class="comment">                */</span>
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<a name="l00158"></a>00158                 LCleanedupPtr&lt;CStringUserTwoPhase&gt; <span class="keyword">self</span>(<span class="keyword">new</span>(ELeave) CStringUserTwoPhase);
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<a name="l00159"></a>00159                 <span class="keyword">self</span>-&gt;Construct(aName);
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<a name="l00160"></a>00160                 <span class="comment">/*</span>
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   159
 
<a name="l00161"></a>00161 <span class="comment">                Calling Unmanage() disables cleanup and yields the</span>
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<a name="l00162"></a>00162 <span class="comment">                previously managed pointer so that it can be safely</span>
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<a name="l00163"></a>00163 <span class="comment">                returned</span>
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<a name="l00164"></a>00164 <span class="comment">                */</span>
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<a name="l00165"></a>00165                 <span class="keywordflow">return</span> <span class="keyword">self</span>.Unmanage();
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<a name="l00166"></a>00166                 }
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<a name="l00167"></a>00167
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<a name="l00168"></a>00168         <span class="keyword">virtual</span> <span class="keywordtype">void</span> Construct(<span class="keyword">const</span> TDesC&amp; aName)
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<a name="l00169"></a>00169                 {
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<a name="l00170"></a>00170                 <span class="comment">/*</span>
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<a name="l00171"></a>00171 <span class="comment">                This assignment may leave if LString fails to allocate a</span>
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<a name="l00172"></a>00172 <span class="comment">                heap buffer large enough to hold the data in aName</span>
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<a name="l00173"></a>00173 <span class="comment">                */</span>
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<a name="l00174"></a>00174                 iName = aName;
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<a name="l00175"></a>00175                 }
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<a name="l00176"></a>00176
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<a name="l00177"></a>00177         ~CStringUserTwoPhase()
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<a name="l00178"></a>00178                 {
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<a name="l00179"></a>00179                 <span class="comment">// The iName LString cleans up after itself automatically </span>
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<a name="l00180"></a>00180                 }
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<a name="l00181"></a>00181
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   180
 
<a name="l00182"></a>00182         <span class="keyword">const</span> TDesC&amp; Name()
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<a name="l00183"></a>00183                 {
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   182
 
<a name="l00184"></a>00184                 <span class="comment">// We can just return an LString directly as a const TDesC</span>
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<a name="l00185"></a>00185                 <span class="keywordflow">return</span> iName;
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<a name="l00186"></a>00186                 }
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<a name="l00187"></a>00187
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<a name="l00188"></a>00188 <span class="keyword">protected</span>:
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<a name="l00189"></a>00189         CStringUserTwoPhase()
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<a name="l00190"></a>00190                 {
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   189
 
<a name="l00191"></a>00191                 <span class="comment">/*</span>
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<a name="l00192"></a>00192 <span class="comment">                Everything interesting happens in ConstructL in this</span>
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<a name="l00193"></a>00193 <span class="comment">                version. </span>
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<a name="l00194"></a>00194 <span class="comment"></span>
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<a name="l00195"></a>00195 <span class="comment">                Default initialization of the iName LString does not</span>
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   194
 
<a name="l00196"></a>00196 <span class="comment">                allocate a heap buffer, and so cannot leave. As long as</span>
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<a name="l00197"></a>00197 <span class="comment">                initialization is deferred to ConstructL, LStrings can be</span>
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<a name="l00198"></a>00198 <span class="comment">                used safely with two-phase construction.</span>
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<a name="l00199"></a>00199 <span class="comment">                */</span>
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<a name="l00200"></a>00200                 }
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<a name="l00201"></a>00201
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<a name="l00202"></a>00202 <span class="keyword">protected</span>:
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<a name="l00203"></a>00203         LString iName;
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<a name="l00204"></a>00204         };
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<a name="l00205"></a>00205
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<a name="l00217"></a>00217 <span class="keyword">class </span>CStringUserSinglePhase : <span class="keyword">public</span> CBase
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<a name="l00218"></a>00218         {
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<a name="l00219"></a>00219 <span class="keyword">public</span>:
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<a name="l00220"></a>00220         <span class="comment">/*</span>
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<a name="l00221"></a>00221 <span class="comment">        This macro is necessary to ensure cleanup is correctly handled</span>
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<a name="l00222"></a>00222 <span class="comment">        in the event that a constructor may leave beneath a call to</span>
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<a name="l00223"></a>00223 <span class="comment">        new(ELeave)</span>
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<a name="l00224"></a>00224 <span class="comment">        */</span>
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<a name="l00225"></a>00225         CONSTRUCTORS_MAY_LEAVE
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<a name="l00226"></a>00226
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<a name="l00227"></a>00227         <span class="keyword">static</span> CStringUserSinglePhase* NewL(<span class="keyword">const</span> TDesC&amp; aName)
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<a name="l00228"></a>00228                 {
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<a name="l00229"></a>00229                 <span class="keywordflow">return</span> <span class="keyword">new</span>(ELeave) CStringUserSinglePhase(aName);
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<a name="l00230"></a>00230                 }
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<a name="l00231"></a>00231
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<a name="l00232"></a>00232         ~CStringUserSinglePhase()
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<a name="l00233"></a>00233                 {
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<a name="l00234"></a>00234                 <span class="comment">// The iName LString cleans up after itself automatically</span>
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<a name="l00235"></a>00235                 }
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<a name="l00236"></a>00236
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<a name="l00237"></a>00237         <span class="keyword">const</span> TDesC&amp; Name()
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<a name="l00238"></a>00238                 {
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<a name="l00239"></a>00239                 <span class="comment">// We can just return an LString directly as a const TDesC</span>
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<a name="l00240"></a>00240                 <span class="keywordflow">return</span> iName;
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<a name="l00241"></a>00241                 }
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<a name="l00242"></a>00242
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<a name="l00243"></a>00243 <span class="keyword">protected</span>:
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<a name="l00244"></a>00244         CStringUserSinglePhase(<span class="keyword">const</span> TDesC&amp; aName)
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<a name="l00245"></a>00245                 <span class="comment">/*</span>
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<a name="l00246"></a>00246 <span class="comment">                This initialization of iName may leave because LString</span>
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<a name="l00247"></a>00247 <span class="comment">                needs to allocate a heap buffer to copy the aName string</span>
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<a name="l00248"></a>00248 <span class="comment">                data into</span>
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<a name="l00249"></a>00249 <span class="comment">                */</span>
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<a name="l00250"></a>00250                 : iName(aName)
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<a name="l00251"></a>00251                 {
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<a name="l00252"></a>00252                 <span class="comment">/*</span>
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<a name="l00253"></a>00253 <span class="comment">                If iName initialization is successful but the constructor</span>
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<a name="l00254"></a>00254 <span class="comment">                then goes on to leave later, iName (like all fields fully</span>
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<a name="l00255"></a>00255 <span class="comment">                constructed at the point of a leave in a constructor) will</span>
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<a name="l00256"></a>00256 <span class="comment">                be destructed, and so clean up after itself</span>
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<a name="l00257"></a>00257 <span class="comment">                */</span>
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<a name="l00258"></a>00258                 MaybeLeave();
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<a name="l00259"></a>00259                 }
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<a name="l00260"></a>00260
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<a name="l00261"></a>00261 <span class="keyword">protected</span>:
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<a name="l00262"></a>00262         LString iName;
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<a name="l00263"></a>00263         };
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<a name="l00264"></a>00264
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<a name="l00265"></a>00265
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<a name="l00266"></a>00266 <span class="keywordtype">void</span> WalkthroughStringsL()
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<a name="l00267"></a>00267         {
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<a name="l00268"></a>00268         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtOption1,<span class="stringliteral">&quot;Option1: String handling using EUser high level library\n&quot;</span>);
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<a name="l00269"></a>00269     gConsole-&gt;Printf(KTxtOption1);
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<a name="l00270"></a>00270     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtFormatString,<span class="stringliteral">&quot;String %d&quot;</span>);
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<a name="l00271"></a>00271     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPrintString,<span class="stringliteral">&quot;String %d = %S\n&quot;</span>);
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<a name="l00272"></a>00272        {
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<a name="l00273"></a>00273                 <span class="comment">// Trivially exercise the LString using classes defined above</span>
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<a name="l00274"></a>00274
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<a name="l00275"></a>00275                 LCleanedupPtr&lt;CStringUserTwoPhase&gt; one(CStringUserTwoPhase::NewL(KOne));
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<a name="l00276"></a>00276                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtSinglePhaseConstructor,<span class="stringliteral">&quot;Single phase name: %S\n&quot;</span>);
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<a name="l00277"></a>00277                 gConsole-&gt;Printf(KTxtSinglePhaseConstructor, &amp;one-&gt;Name());
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<a name="l00278"></a>00278
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<a name="l00279"></a>00279                 LCleanedupPtr&lt;CStringUserSinglePhase&gt; two(CStringUserSinglePhase::NewL(KTwo));
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<a name="l00280"></a>00280                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtTwoPhaseConstructor,<span class="stringliteral">&quot;Single phase name: %S\n&quot;</span>);
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<a name="l00281"></a>00281                 gConsole-&gt;Printf(KTxtTwoPhaseConstructor, &amp;two-&gt;Name());
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<a name="l00282"></a>00282
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<a name="l00283"></a>00283                 gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
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<a name="l00284"></a>00284                 gConsole-&gt;Getch();
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<a name="l00285"></a>00285                 <span class="comment">// Both instances are automatically deleted as we go out of scope</span>
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<a name="l00286"></a>00286                 }
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<a name="l00287"></a>00287
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<a name="l00288"></a>00288                 {
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<a name="l00289"></a>00289                 <span class="comment">/*</span>
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<a name="l00290"></a>00290 <span class="comment">                A default constructed LString starts empty, doesn&#39;t</span>
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<a name="l00291"></a>00291 <span class="comment">                allocate any memory on the heap, and therefore the</span>
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<a name="l00292"></a>00292 <span class="comment">                following cannot leave</span>
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<a name="l00293"></a>00293 <span class="comment">                */</span>
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<a name="l00294"></a>00294                 LString s;
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<a name="l00295"></a>00295
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<a name="l00296"></a>00296                 <span class="comment">/*</span>
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<a name="l00297"></a>00297 <span class="comment">                But it will grow on demand if you assign to it, so it has</span>
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<a name="l00298"></a>00298 <span class="comment">                enough space to hold the copied string data, and so</span>
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<a name="l00299"></a>00299 <span class="comment">                assignment may leave</span>
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<a name="l00300"></a>00300 <span class="comment">                */</span>
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<a name="l00301"></a>00301                 s = KOne;
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<a name="l00302"></a>00302
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<a name="l00303"></a>00303                 <span class="comment">/*</span>
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<a name="l00304"></a>00304 <span class="comment">                Similarly if you append to it with the leaving variant of</span>
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<a name="l00305"></a>00305 <span class="comment">                Append(), AppendL(), if may grow on demand</span>
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<a name="l00306"></a>00306 <span class="comment">                */</span>
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<a name="l00307"></a>00307                 s.AppendL(KTwo);
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<a name="l00308"></a>00308
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<a name="l00309"></a>00309                 <span class="comment">// The += operator for LString also maps to AppendL()</span>
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<a name="l00310"></a>00310                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KThree, <span class="stringliteral">&quot;Three &quot;</span>);
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<a name="l00311"></a>00311                 s += KThree;
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<a name="l00312"></a>00312
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<a name="l00313"></a>00313                 <span class="comment">/*</span>
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<a name="l00314"></a>00314 <span class="comment">                You can also use new leaving format methods that also grow</span>
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<a name="l00315"></a>00315 <span class="comment">                on demand</span>
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<a name="l00316"></a>00316 <span class="comment">                */</span>
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<a name="l00317"></a>00317                 s.AppendFormatL(KTesting);
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<a name="l00318"></a>00318
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<a name="l00319"></a>00319                 <span class="comment">/*</span>
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<a name="l00320"></a>00320 <span class="comment">                This general style of use of LString may be preferable to</span>
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<a name="l00321"></a>00321 <span class="comment">                typical descriptor use for a number of reasons e.g. it</span>
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<a name="l00322"></a>00322 <span class="comment">                avoids the common temptation to set an artificial maximum</span>
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<a name="l00323"></a>00323 <span class="comment">                buffer size; it avoids massive conservative over-allocation</span>
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<a name="l00324"></a>00324 <span class="comment">                when the average case length of a string is far less than</span>
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<a name="l00325"></a>00325 <span class="comment">                the worst-case maximum; it will not surprise you (compared</span>
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<a name="l00326"></a>00326 <span class="comment">                to the alternative of a large stack-allocated TBuf) by</span>
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   314
 
<a name="l00327"></a>00327 <span class="comment">                triggering stack overflow.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   315
 
<a name="l00328"></a>00328 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   316
 
<a name="l00329"></a>00329
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   317
 
<a name="l00330"></a>00330                 <span class="comment">// An LString can be printed the same way as any descriptor</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   318
 
<a name="l00331"></a>00331                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtValue,<span class="stringliteral">&quot;Value: %S\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   319
 
<a name="l00332"></a>00332                 gConsole-&gt;Printf(KTxtValue, &amp;s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   320
 
<a name="l00333"></a>00333
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   321
 
<a name="l00334"></a>00334                 <span class="comment">// An LString can be compared the same way as any descriptor</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   322
 
<a name="l00335"></a>00335                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtLStringCompare,<span class="stringliteral">&quot; Comparing LString with a literal is successful\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   323
 
<a name="l00336"></a>00336                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPhrase, <span class="stringliteral">&quot;One Two Three Testing &quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   324
 
<a name="l00337"></a>00337                 <span class="keywordflow">if</span>(s == KPhrase)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   325
 
<a name="l00338"></a>00338                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   326
 
<a name="l00339"></a>00339                         gConsole-&gt;Printf(KTxtLStringCompare);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   327
 
<a name="l00340"></a>00340                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   328
 
<a name="l00341"></a>00341
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   329
 
<a name="l00342"></a>00342                 <span class="comment">// An LString supports all TDesC and TDes methods</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   330
 
<a name="l00343"></a>00343                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtLStringSupportedAPI1,<span class="stringliteral">&quot;LString supports TDesC and TDes methods\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   331
 
<a name="l00344"></a>00344                 <span class="keywordflow">if</span>(s.Find(KTwo) == 4)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   332
 
<a name="l00345"></a>00345                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   333
 
<a name="l00346"></a>00346                         gConsole-&gt;Printf(KTxtLStringSupportedAPI1);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   334
 
<a name="l00347"></a>00347                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   335
 
<a name="l00348"></a>00348                 <span class="comment">// An LString supports all TDesC and TDes operators</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   336
 
<a name="l00349"></a>00349                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtLStringSupportedAPI2,<span class="stringliteral">&quot;LString supports TDesC and TDes operators\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   337
 
<a name="l00350"></a>00350                 <span class="keywordflow">if</span>(s[4] == TChar(<span class="charliteral">&#39;T&#39;</span>))
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   338
 
<a name="l00351"></a>00351                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   339
 
<a name="l00352"></a>00352                         gConsole-&gt;Printf(KTxtLStringSupportedAPI2);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   340
 
<a name="l00353"></a>00353                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   341
 
<a name="l00354"></a>00354                 TInt untrimmed = s.Length();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   342
 
<a name="l00355"></a>00355                 s.Trim();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   343
 
<a name="l00356"></a>00356                 <span class="keywordflow">if</span>(s.Length() == untrimmed - 1)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   344
 
<a name="l00357"></a>00357                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   345
 
<a name="l00358"></a>00358                         <span class="comment">//LString supports Trim API</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   346
 
<a name="l00359"></a>00359                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   347
 
<a name="l00360"></a>00360
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   348
 
<a name="l00361"></a>00361                 s.UpperCase();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   349
 
<a name="l00362"></a>00362                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPrintUpperCase,<span class="stringliteral">&quot;UpperCase: %S\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   350
 
<a name="l00363"></a>00363                 gConsole-&gt;Printf(KTxtPrintUpperCase, &amp;s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   351
 
<a name="l00364"></a>00364                 s.LowerCase();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   352
 
<a name="l00365"></a>00365                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPrintLowerCase,<span class="stringliteral">&quot;UpperCase: %S\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   353
 
<a name="l00366"></a>00366                 gConsole-&gt;Printf(KTxtPrintLowerCase, &amp;s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   354
 
<a name="l00367"></a>00367                 gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   355
 
<a name="l00368"></a>00368                 gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   356
 
<a name="l00369"></a>00369                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   357
 
<a name="l00370"></a>00370 <span class="comment">                The underlying heap allocated buffer is released</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   358
 
<a name="l00371"></a>00371 <span class="comment">                automatically when the LString goes out of scope, either</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   359
 
<a name="l00372"></a>00372 <span class="comment">                normally or through a leave</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   360
 
<a name="l00373"></a>00373 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   361
 
<a name="l00374"></a>00374                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   362
 
<a name="l00375"></a>00375
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   363
 
<a name="l00376"></a>00376                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   364
 
<a name="l00377"></a>00377                 <span class="comment">// You can initialize with a MaxLength value</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   365
 
<a name="l00378"></a>00378                 LString s(KMaxFileName); <span class="comment">// This operation may leave</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   366
 
<a name="l00379"></a>00379                 <span class="keywordflow">if</span>(s.MaxLength() == KMaxFileName)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   367
 
<a name="l00380"></a>00380                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   368
 
<a name="l00381"></a>00381                         <span class="comment">//LString supports MaxLength API</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   369
 
<a name="l00382"></a>00382                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   370
 
<a name="l00383"></a>00383
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   371
 
<a name="l00384"></a>00384                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   372
 
<a name="l00385"></a>00385 <span class="comment">                And you can dynamically adjust MaxLength later using </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   373
 
<a name="l00386"></a>00386 <span class="comment">                SetMaxLengthL() if you want an exact allocated size.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   374
 
<a name="l00387"></a>00387 <span class="comment">                Setting MaxLength() on construction or via SetMaxLengthL() is</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   375
 
<a name="l00388"></a>00388 <span class="comment">                exact; calling MaxLength() immediately afterwards is</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   376
 
<a name="l00389"></a>00389 <span class="comment">                guaranteed to return exactly the value you specified.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   377
 
<a name="l00390"></a>00390 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   378
 
<a name="l00391"></a>00391                 s.SetMaxLengthL(2 * KMaxFileName);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   379
 
<a name="l00392"></a>00392                 <span class="keywordflow">if</span>(s.MaxLength() == 2 * KMaxFileName)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   380
 
<a name="l00393"></a>00393                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   381
 
<a name="l00394"></a>00394                         <span class="comment">//MaxLength is successfully adjusted.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   382
 
<a name="l00395"></a>00395                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   383
 
<a name="l00396"></a>00396
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   384
 
<a name="l00397"></a>00397                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   385
 
<a name="l00398"></a>00398 <span class="comment">                Pre-setting MaxLength is important when passing an LString</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   386
 
<a name="l00399"></a>00399 <span class="comment">                as a TDes to a library function, because the LString can&#39;t</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   387
 
<a name="l00400"></a>00400 <span class="comment">                be auto-grown via the TDes API.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   388
 
<a name="l00401"></a>00401 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   389
 
<a name="l00402"></a>00402
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   390
 
<a name="l00403"></a>00403                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   391
 
<a name="l00404"></a>00404
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   392
 
<a name="l00405"></a>00405                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   393
 
<a name="l00406"></a>00406                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   394
 
<a name="l00407"></a>00407 <span class="comment">                You can initialize from any descriptor (or literal) and the</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   395
 
<a name="l00408"></a>00408 <span class="comment">                string data is copied into the LString</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   396
 
<a name="l00409"></a>00409 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   397
 
<a name="l00410"></a>00410                 LString s(KOne); <span class="comment">// From a literal</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   398
 
<a name="l00411"></a>00411                 s += KTwo;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   399
 
<a name="l00412"></a>00412                 LString half(s.Left(s.Length() / 2)); <span class="comment">// Left returns a TPtrC</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   400
 
<a name="l00413"></a>00413                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPrintAllandHalf,<span class="stringliteral">&quot;All: %S, Half: %S\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   401
 
<a name="l00414"></a>00414                 gConsole-&gt;Printf(KTxtPrintAllandHalf, &amp;s, &amp;half);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   402
 
<a name="l00415"></a>00415
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   403
 
<a name="l00416"></a>00416                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   404
 
<a name="l00417"></a>00417 <span class="comment">                On the other hand, you can initialize from a returned</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   405
 
<a name="l00418"></a>00418 <span class="comment">                HBufC* and the LString automatically takes ownership</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   406
 
<a name="l00419"></a>00419 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   407
 
<a name="l00420"></a>00420                 LString own(AllocateNameL(KTesting));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   408
 
<a name="l00421"></a>00421                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtOwnedString,<span class="stringliteral">&quot;What I own: %S\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   409
 
<a name="l00422"></a>00422                 gConsole-&gt;Printf(KTxtOwnedString, &amp;own);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   410
 
<a name="l00423"></a>00423
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   411
 
<a name="l00424"></a>00424                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   412
 
<a name="l00425"></a>00425 <span class="comment">                Following that you can re-assign an HBufC to an existing</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   413
 
<a name="l00426"></a>00426 <span class="comment">                string using the assignment operator </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   414
 
<a name="l00427"></a>00427 <span class="comment">                taking ownership of the new content. </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   415
 
<a name="l00428"></a>00428 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   416
 
<a name="l00429"></a>00429                 own = AllocateNameL(KTesting);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   417
 
<a name="l00430"></a>00430
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   418
 
<a name="l00431"></a>00431                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   419
 
<a name="l00432"></a>00432 <span class="comment">                Following that you can re-assign an HBufC to an existing</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   420
 
<a name="l00433"></a>00433 <span class="comment">                string. The string destroys its original content before</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   421
 
<a name="l00434"></a>00434 <span class="comment">                taking ownership of the new content. </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   422
 
<a name="l00435"></a>00435 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   423
 
<a name="l00436"></a>00436                 own.Assign(AllocateNameL(KTesting));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   424
 
<a name="l00437"></a>00437
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   425
 
<a name="l00438"></a>00438                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   426
 
<a name="l00439"></a>00439 <span class="comment">                The content of one string can similarly be assigned</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   427
 
<a name="l00440"></a>00440 <span class="comment">                to another to avoid copying. In this example, the content </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   428
 
<a name="l00441"></a>00441 <span class="comment">                is detached from &#39;s&#39; and transfered to &#39;own&#39;.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   429
 
<a name="l00442"></a>00442 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   430
 
<a name="l00443"></a>00443                 own.Assign(s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   431
 
<a name="l00444"></a>00444
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   432
 
<a name="l00445"></a>00445                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   433
 
<a name="l00446"></a>00446 <span class="comment">                The same content transfer can be achieved from an RBuf to a</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   434
 
<a name="l00447"></a>00447 <span class="comment">                string. You may need to do this if a legacy method returns</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   435
 
<a name="l00448"></a>00448 <span class="comment">                you an RBuf. The RBuf is emptied of its content.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   436
 
<a name="l00449"></a>00449 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   437
 
<a name="l00450"></a>00450                 RBuf16 buf;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   438
 
<a name="l00451"></a>00451                 buf.CreateL(KOne);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   439
 
<a name="l00452"></a>00452                 own.Assign(buf);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   440
 
<a name="l00453"></a>00453
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   441
 
<a name="l00454"></a>00454                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   442
 
<a name="l00455"></a>00455 <span class="comment">                You can also assign a simple text array to a string as its</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   443
 
<a name="l00456"></a>00456 <span class="comment">                new buffer. This method initialises the length to zero.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   444
 
<a name="l00457"></a>00457 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   445
 
<a name="l00458"></a>00458                 own.Assign((TText*)User::Alloc(24*(TInt)<span class="keyword">sizeof</span>(TText)), 24);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   446
 
<a name="l00459"></a>00459
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   447
 
<a name="l00460"></a>00460                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   448
 
<a name="l00461"></a>00461 <span class="comment">                If the buffer has already been filled with some characters</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   449
 
<a name="l00462"></a>00462 <span class="comment">                then you supply the length in this alternative Assign() method.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   450
 
<a name="l00463"></a>00463 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   451
 
<a name="l00464"></a>00464                 own.Assign((TText*)User::Alloc(24*(TInt)<span class="keyword">sizeof</span>(TText)), 12,24);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   452
 
<a name="l00465"></a>00465                 gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   453
 
<a name="l00466"></a>00466                 gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   454
 
<a name="l00467"></a>00467                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   455
 
<a name="l00468"></a>00468 <span class="comment">                Each Assign() destroys the old content before assuming ownership</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   456
 
<a name="l00469"></a>00469 <span class="comment">                of the new.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   457
 
<a name="l00470"></a>00470 <span class="comment">                As usual the last content of the string is destroyed when the </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   458
 
<a name="l00471"></a>00471 <span class="comment">                LString goes out of scope</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   459
 
<a name="l00472"></a>00472 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   460
 
<a name="l00473"></a>00473                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   461
 
<a name="l00474"></a>00474
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   462
 
<a name="l00475"></a>00475                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   463
 
<a name="l00476"></a>00476                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   464
 
<a name="l00477"></a>00477 <span class="comment">                You can reserve extra free space in preparation for an </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   465
 
<a name="l00478"></a>00478 <span class="comment">                operation that adds characters to the string. You may</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   466
 
<a name="l00479"></a>00479 <span class="comment">                need to do this when you cannot use any of the auto-buffer</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   467
 
<a name="l00480"></a>00480 <span class="comment">                extending LString methods to achieve your objective.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   468
 
<a name="l00481"></a>00481 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   469
 
<a name="l00482"></a>00482                 LString s(KOne);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   470
 
<a name="l00483"></a>00483                 s.ReserveFreeCapacityL(4);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   471
 
<a name="l00484"></a>00484                 <span class="keywordflow">if</span>(s.Length() == 4)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   472
 
<a name="l00485"></a>00485                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   473
 
<a name="l00486"></a>00486                         <span class="comment">//Length() API gives the current length of the string</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   474
 
<a name="l00487"></a>00487                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   475
 
<a name="l00488"></a>00488                 <span class="keywordflow">if</span>(s.MaxLength() &gt;= 8)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   476
 
<a name="l00489"></a>00489                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   477
 
<a name="l00490"></a>00490                         <span class="comment">//MaxLength() gives the maximum length supported by the string</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   478
 
<a name="l00491"></a>00491                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   479
 
<a name="l00492"></a>00492
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   480
 
<a name="l00493"></a>00493                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   481
 
<a name="l00494"></a>00494 <span class="comment">                Almost all the methods that may extend the string buffer,</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   482
 
<a name="l00495"></a>00495 <span class="comment">                including the explicit ReserveFreeCapacityL(), but excluding</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   483
 
<a name="l00496"></a>00496 <span class="comment">                SetMaxLengthL(), attempt to grow the size exponentially. </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   484
 
<a name="l00497"></a>00497 <span class="comment">                The exponential growth pattern is expected to give better </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   485
 
<a name="l00498"></a>00498 <span class="comment">                performance at an amortised complexity of O(n) when adding n characters.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   486
 
<a name="l00499"></a>00499 <span class="comment">                If the exponential growth is less than the supplied extra size</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   487
 
<a name="l00500"></a>00500 <span class="comment">                then the supplied size is used instead to save time.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   488
 
<a name="l00501"></a>00501 <span class="comment">                The exponential growth is used in anticipation of further additions</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   489
 
<a name="l00502"></a>00502 <span class="comment">                to a string. This trades-off speed efficiency for space efficiency.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   490
 
<a name="l00503"></a>00503 <span class="comment">                If required you may be able to swap the oversized buffer for </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   491
 
<a name="l00504"></a>00504 <span class="comment">                a more compact one using:</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   492
 
<a name="l00505"></a>00505 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   493
 
<a name="l00506"></a>00506                 s.Compress();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   494
 
<a name="l00507"></a>00507                 <span class="keywordflow">if</span>(s.MaxLength() &gt;= 4)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   495
 
<a name="l00508"></a>00508                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   496
 
<a name="l00509"></a>00509                         <span class="comment">//Compress() API is used to compress the unused memory.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   497
 
<a name="l00510"></a>00510                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   498
 
<a name="l00511"></a>00511
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   499
 
<a name="l00512"></a>00512                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   500
 
<a name="l00513"></a>00513 <span class="comment">                Resize() attempts to re-allocate a smaller buffer to copy</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   501
 
<a name="l00514"></a>00514 <span class="comment">                the content into. If the new memory cannot be allocated then the</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   502
 
<a name="l00515"></a>00515 <span class="comment">                original string is left unaffected. </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   503
 
<a name="l00516"></a>00516 <span class="comment">                </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   504
 
<a name="l00517"></a>00517 <span class="comment">                When you have finished using the content of a string you can</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   505
 
<a name="l00518"></a>00518 <span class="comment">                get its buffer released without destroying the string itself. </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   506
 
<a name="l00519"></a>00519 <span class="comment">                You may want to do this when using member declared strings.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   507
 
<a name="l00520"></a>00520 <span class="comment">                Automatic strings are destroyed when they go out of scope.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   508
 
<a name="l00521"></a>00521 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   509
 
<a name="l00522"></a>00522                 s.Reset();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   510
 
<a name="l00523"></a>00523                 <span class="keywordflow">if</span>(s.Length() == 0)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   511
 
<a name="l00524"></a>00524                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   512
 
<a name="l00525"></a>00525                         <span class="comment">//Buffer of the string is released, hence length is zero.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   513
 
<a name="l00526"></a>00526                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   514
 
<a name="l00527"></a>00527                 <span class="keywordflow">if</span>(s.MaxLength() == 0)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   515
 
<a name="l00528"></a>00528                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   516
 
<a name="l00529"></a>00529                         <span class="comment">//Buffer of the string is released, hence maximum length is zero.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   517
 
<a name="l00530"></a>00530                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   518
 
<a name="l00531"></a>00531
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   519
 
<a name="l00532"></a>00532                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   520
 
<a name="l00533"></a>00533
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   521
 
<a name="l00534"></a>00534                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   522
 
<a name="l00535"></a>00535                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   523
 
<a name="l00536"></a>00536 <span class="comment">                An LString can be passed directly to any function requiring</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   524
 
<a name="l00537"></a>00537 <span class="comment">                a const TDesC&amp;</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   525
 
<a name="l00538"></a>00538 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   526
 
<a name="l00539"></a>00539                 TInt year = 2009;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   527
 
<a name="l00540"></a>00540
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   528
 
<a name="l00541"></a>00541                 LString s;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   529
 
<a name="l00542"></a>00542                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtFormatYear1,<span class="stringliteral">&quot;Happy New Year %d&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   530
 
<a name="l00543"></a>00543                 s.FormatL(KTxtFormatYear1, year);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   531
 
<a name="l00544"></a>00544                 <span class="comment">// InfoPrint() takes a const TDesC&amp;</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   532
 
<a name="l00545"></a>00545                 User::InfoPrint(s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   533
 
<a name="l00546"></a>00546
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   534
 
<a name="l00547"></a>00547                 LString pattern;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   535
 
<a name="l00548"></a>00548                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtFormatYear2,<span class="stringliteral">&quot;*Year %d&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   536
 
<a name="l00549"></a>00549                 pattern.FormatL(KTxtFormatYear2, year);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   537
 
<a name="l00550"></a>00550                 <span class="comment">// Match() takes a const TDesC&amp; as a pattern</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   538
 
<a name="l00551"></a>00551                 TInt loc = s.Match(pattern);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   539
 
<a name="l00552"></a>00552                 <span class="keywordflow">if</span>(loc == 10)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   540
 
<a name="l00553"></a>00553                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   541
 
<a name="l00554"></a>00554                         <span class="comment">//Match() API is demonstrated successfully.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   542
 
<a name="l00555"></a>00555                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   543
 
<a name="l00556"></a>00556                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   544
 
<a name="l00557"></a>00557
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   545
 
<a name="l00558"></a>00558                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   546
 
<a name="l00559"></a>00559                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   547
 
<a name="l00560"></a>00560 <span class="comment">                An LString can be passed directly to any function requiring</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   548
 
<a name="l00561"></a>00561 <span class="comment">                a TDes&amp; but care must always be taken to pre-set MaxLength()</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   549
 
<a name="l00562"></a>00562 <span class="comment">                since LStrings can&#39;t be automatically grown via the TDes</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   550
 
<a name="l00563"></a>00563 <span class="comment">                interface</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   551
 
<a name="l00564"></a>00564 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   552
 
<a name="l00565"></a>00565
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   553
 
<a name="l00566"></a>00566                 LString s;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   554
 
<a name="l00567"></a>00567                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   555
 
<a name="l00568"></a>00568 <span class="comment">                Calling GetCurrentPath(s) now would panic because LStrings</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   556
 
<a name="l00569"></a>00569 <span class="comment">                are initialized by default to MaxLength 0.  Although s is</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   557
 
<a name="l00570"></a>00570 <span class="comment">                an LString GetCurrentPath() takes a TDes&amp; and so inside the function</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   558
 
<a name="l00571"></a>00571 <span class="comment">                &#39;s&#39; behaves as a TDes and would panic with USER 11 if the resulting </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   559
 
<a name="l00572"></a>00572 <span class="comment">                new length of s is greater than its maximum length.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   560
 
<a name="l00573"></a>00573 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   561
 
<a name="l00574"></a>00574                 <span class="keywordflow">if</span>(s.MaxLength() == 0)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   562
 
<a name="l00575"></a>00575                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   563
 
<a name="l00576"></a>00576                         <span class="comment">//LStrings are initialized by default to MaxLength 0</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   564
 
<a name="l00577"></a>00577                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   565
 
<a name="l00578"></a>00578
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   566
 
<a name="l00579"></a>00579                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   567
 
<a name="l00580"></a>00580 <span class="comment">                Calling SetMaxLengthL() will automatically realloc the</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   568
 
<a name="l00581"></a>00581 <span class="comment">                underlying buffer if required, and is guaranteed to leave</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   569
 
<a name="l00582"></a>00582 <span class="comment">                MaxLength() equal to the specified value</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   570
 
<a name="l00583"></a>00583 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   571
 
<a name="l00584"></a>00584                 s.SetMaxLengthL(KMaxFileName);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   572
 
<a name="l00585"></a>00585                 GetCurrentPath(s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   573
 
<a name="l00586"></a>00586                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPrintPath,<span class="stringliteral">&quot;Path: %S\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   574
 
<a name="l00587"></a>00587                 gConsole-&gt;Printf(KTxtPrintPath, &amp;s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   575
 
<a name="l00588"></a>00588                 <span class="keywordflow">if</span>(s == KPath)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   576
 
<a name="l00589"></a>00589                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   577
 
<a name="l00590"></a>00590                         <span class="comment">//String comparison is successful</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   578
 
<a name="l00591"></a>00591                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   579
 
<a name="l00592"></a>00592
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   580
 
<a name="l00593"></a>00593                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   581
 
<a name="l00594"></a>00594 <span class="comment">                If SetMaxLengthL() adjusts MaxLength() to be lower than the current</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   582
 
<a name="l00595"></a>00595 <span class="comment">                Length(), the data is truncated to the new MaxLength() and</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   583
 
<a name="l00596"></a>00596 <span class="comment">                Length() set to the new MaxLength().</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   584
 
<a name="l00597"></a>00597 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   585
 
<a name="l00598"></a>00598                 s.SetMaxLengthL(s.Length() / 2);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   586
 
<a name="l00599"></a>00599                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtTruncatedPath,<span class="stringliteral">&quot;Truncated path: %S\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   587
 
<a name="l00600"></a>00600                 gConsole-&gt;Printf(KTxtTruncatedPath, &amp;s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   588
 
<a name="l00601"></a>00601                 <span class="keywordflow">if</span>(s.Length() == s.MaxLength())
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   589
 
<a name="l00602"></a>00602                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   590
 
<a name="l00603"></a>00603                         <span class="comment">//String comparison is successful</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   591
 
<a name="l00604"></a>00604                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   592
 
<a name="l00605"></a>00605
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   593
 
<a name="l00606"></a>00606                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   594
 
<a name="l00607"></a>00607 <span class="comment">                An initial MaxLength() can be specified when constructing an</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   595
 
<a name="l00608"></a>00608 <span class="comment">                LString. Note that unlike the default constructor, this</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   596
 
<a name="l00609"></a>00609 <span class="comment">                variant allocates and may leave.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   597
 
<a name="l00610"></a>00610 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   598
 
<a name="l00611"></a>00611                 LString s2(KMaxFileName);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   599
 
<a name="l00612"></a>00612                 GetCurrentPath(s2);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   600
 
<a name="l00613"></a>00613                 gConsole-&gt;Printf(KTxtPrintPath, &amp;s2);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   601
 
<a name="l00614"></a>00614                 <span class="keywordflow">if</span>(s2 == KPath)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   602
 
<a name="l00615"></a>00615                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   603
 
<a name="l00616"></a>00616                         <span class="comment">//String comparison is successful</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   604
 
<a name="l00617"></a>00617                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   605
 
<a name="l00618"></a>00618
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   606
 
<a name="l00619"></a>00619                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   607
 
<a name="l00620"></a>00620 <span class="comment">                Your code and APIs can benefit from LString&#39;s auto-growth</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   608
 
<a name="l00621"></a>00621 <span class="comment">                behaviour by accepting an LString to fill in as an output</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   609
 
<a name="l00622"></a>00622 <span class="comment">                parameter. Using LString rather than TDes parameters means </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   610
 
<a name="l00623"></a>00623 <span class="comment">                that the function is able to safely increase the size of the </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   611
 
<a name="l00624"></a>00624 <span class="comment">                string as the LString will re-allocate as necessary</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   612
 
<a name="l00625"></a>00625 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   613
 
<a name="l00626"></a>00626                 LString s3;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   614
 
<a name="l00627"></a>00627                 <span class="comment">// GetCurrentPathString() takes an LString&amp;</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   615
 
<a name="l00628"></a>00628                 GetCurrentPathString(s3);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   616
 
<a name="l00629"></a>00629                 gConsole-&gt;Printf(KTxtPrintPath, &amp;s3);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   617
 
<a name="l00630"></a>00630                 <span class="keywordflow">if</span>(s3 == KPath)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   618
 
<a name="l00631"></a>00631                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   619
 
<a name="l00632"></a>00632                         <span class="comment">//String comparison is successful</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   620
 
<a name="l00633"></a>00633                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   621
 
<a name="l00634"></a>00634
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   622
 
<a name="l00635"></a>00635                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   623
 
<a name="l00636"></a>00636 <span class="comment">                As a well-defined value class, if you want to, LStrings can</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   624
 
<a name="l00637"></a>00637 <span class="comment">                be passed and returned by value. This is relatively</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   625
 
<a name="l00638"></a>00638 <span class="comment">                inefficient however due to the amount of copying and heap</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   626
 
<a name="l00639"></a>00639 <span class="comment">                reallocation involved. </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   627
 
<a name="l00640"></a>00640 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   628
 
<a name="l00641"></a>00641                 LString s4(AppendCurrentPathStringL(s3));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   629
 
<a name="l00642"></a>00642                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtAppendedPath,<span class="stringliteral">&quot;Appended path: %S\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   630
 
<a name="l00643"></a>00643                 gConsole-&gt;Printf(KTxtAppendedPath, &amp;s4);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   631
 
<a name="l00644"></a>00644                 <span class="keywordflow">if</span>(s4.Length() == s3.Length() * 2)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   632
 
<a name="l00645"></a>00645                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   633
 
<a name="l00646"></a>00646                         <span class="comment">//String comparison is successful</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   634
 
<a name="l00647"></a>00647                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   635
 
<a name="l00648"></a>00648                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   636
 
<a name="l00649"></a>00649
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   637
 
<a name="l00650"></a>00650                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   638
 
<a name="l00651"></a>00651                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   639
 
<a name="l00652"></a>00652 <span class="comment">                LStrings can be allocated on the heap if necessary. </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   640
 
<a name="l00653"></a>00653 <span class="comment">                Then it can managed as part of an array of string pointers.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   641
 
<a name="l00654"></a>00654 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   642
 
<a name="l00655"></a>00655                 TInt n = 5;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   643
 
<a name="l00656"></a>00656                 LCleanedupHandle&lt;RPointerArray&lt;LString&gt;, TResetAndDestroy&gt; sarray;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   644
 
<a name="l00657"></a>00657
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   645
 
<a name="l00658"></a>00658                 <span class="keywordflow">for</span> (TInt i = 0; i &lt; n; ++i)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   646
 
<a name="l00659"></a>00659                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   647
 
<a name="l00660"></a>00660                         LString* s = <span class="keyword">new</span>(ELeave) LString;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   648
 
<a name="l00661"></a>00661                         s-&gt;FormatL(KTxtFormatString, i);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   649
 
<a name="l00662"></a>00662                         sarray-&gt;Append(s);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   650
 
<a name="l00663"></a>00663                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   651
 
<a name="l00664"></a>00664
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   652
 
<a name="l00665"></a>00665                 <span class="keywordflow">for</span> (TInt i = 0, n = sarray-&gt;Count(); i &lt; n; ++i)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   653
 
<a name="l00666"></a>00666                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   654
 
<a name="l00667"></a>00667                         LString tmp;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   655
 
<a name="l00668"></a>00668                         tmp.FormatL(KTxtFormatString, i);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   656
 
<a name="l00669"></a>00669                         <span class="keywordflow">if</span>(tmp == *(*sarray)[i])
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   657
 
<a name="l00670"></a>00670                                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   658
 
<a name="l00671"></a>00671
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   659
 
<a name="l00672"></a>00672                                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   660
 
<a name="l00673"></a>00673                         gConsole-&gt;Printf(KTxtPrintString, i, (*sarray)[i]);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   661
 
<a name="l00674"></a>00674                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   662
 
<a name="l00675"></a>00675
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   663
 
<a name="l00676"></a>00676                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   664
 
<a name="l00677"></a>00677
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   665
 
<a name="l00678"></a>00678                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   666
 
<a name="l00679"></a>00679                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   667
 
<a name="l00680"></a>00680 <span class="comment">                Any allocation failure in new(ELeave)LString throws</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   668
 
<a name="l00681"></a>00681 <span class="comment">                KErrNoMemory and cleans up fully after itself.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   669
 
<a name="l00682"></a>00682 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   670
 
<a name="l00683"></a>00683
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   671
 
<a name="l00684"></a>00684                 __UHEAP_MARK;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   672
 
<a name="l00685"></a>00685                 TRAPD(status, <span class="keyword">new</span>(ELeave) LString(100 * 1024 * 1024));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   673
 
<a name="l00686"></a>00686                 <span class="keywordflow">if</span>(status == KErrNoMemory)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   674
 
<a name="l00687"></a>00687                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   675
 
<a name="l00688"></a>00688                         <span class="comment">//cleans up after itself fully, there is no need to take any further action.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   676
 
<a name="l00689"></a>00689                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   677
 
<a name="l00690"></a>00690                 __UHEAP_MARKEND;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   678
 
<a name="l00691"></a>00691                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   679
 
<a name="l00692"></a>00692
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   680
 
<a name="l00693"></a>00693                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   681
 
<a name="l00694"></a>00694                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   682
 
<a name="l00695"></a>00695 <span class="comment">                Native C arrays (both heap and stack allocated) of LStrings</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   683
 
<a name="l00696"></a>00696 <span class="comment">                also work, although their use is not recommended.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   684
 
<a name="l00697"></a>00697 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   685
 
<a name="l00698"></a>00698
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   686
 
<a name="l00699"></a>00699                 TInt n = 5;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   687
 
<a name="l00700"></a>00700                 LCleanedupArray&lt;LString&gt; sarray(<span class="keyword">new</span>(ELeave) LString[n]);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   688
 
<a name="l00701"></a>00701
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   689
 
<a name="l00702"></a>00702                 <span class="keywordflow">for</span> (TInt i = 0; i &lt; n; ++i)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   690
 
<a name="l00703"></a>00703                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   691
 
<a name="l00704"></a>00704                         sarray[i].FormatL(KTxtFormatString, i);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   692
 
<a name="l00705"></a>00705                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   693
 
<a name="l00706"></a>00706
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   694
 
<a name="l00707"></a>00707                 <span class="keywordflow">for</span> (TInt i = 0; i &lt; n; ++i)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   695
 
<a name="l00708"></a>00708                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   696
 
<a name="l00709"></a>00709                         LString tmp;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   697
 
<a name="l00710"></a>00710                         tmp.FormatL(KTxtFormatString, i);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   698
 
<a name="l00711"></a>00711                         <span class="keywordflow">if</span>(tmp == sarray[i])
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   699
 
<a name="l00712"></a>00712                                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   700
 
<a name="l00713"></a>00713                                 <span class="comment">//comparison of strings is successful</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   701
 
<a name="l00714"></a>00714                                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   702
 
<a name="l00715"></a>00715                         gConsole-&gt;Printf(KTxtPrintString, i, &amp;sarray[i]);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   703
 
<a name="l00716"></a>00716                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   704
 
<a name="l00717"></a>00717
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   705
 
<a name="l00718"></a>00718                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   706
 
<a name="l00719"></a>00719
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   707
 
<a name="l00720"></a>00720         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   708
 
<a name="l00721"></a>00721
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   709
 
<a name="l00727"></a>00727 <span class="keyword">class </span>CManagedUserTwoPhase : <span class="keyword">public</span> CBase
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   710
 
<a name="l00728"></a>00728         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   711
 
<a name="l00729"></a>00729 <span class="keyword">public</span>:
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   712
 
<a name="l00730"></a>00730         <span class="keyword">static</span> CManagedUserTwoPhase* NewL(CTicker* aTicker)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   713
 
<a name="l00731"></a>00731                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   714
 
<a name="l00732"></a>00732                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   715
 
<a name="l00733"></a>00733 <span class="comment">                We can use the resource management utility classes in</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   716
 
<a name="l00734"></a>00734 <span class="comment">                two-phase if we want to.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   717
 
<a name="l00735"></a>00735 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   718
 
<a name="l00736"></a>00736                 LCleanedupPtr&lt;CManagedUserTwoPhase&gt; <span class="keyword">self</span>(<span class="keyword">new</span>(ELeave) CManagedUserTwoPhase);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   719
 
<a name="l00737"></a>00737                 <span class="keyword">self</span>-&gt;ConstructL(aTicker);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   720
 
<a name="l00738"></a>00738                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   721
 
<a name="l00739"></a>00739 <span class="comment">                Calling Unmanage() disables cleanup and yields the</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   722
 
<a name="l00740"></a>00740 <span class="comment">                previously managed pointer so that it can be safely</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   723
 
<a name="l00741"></a>00741 <span class="comment">                returned.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   724
 
<a name="l00742"></a>00742 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   725
 
<a name="l00743"></a>00743                 <span class="keywordflow">return</span> <span class="keyword">self</span>.Unmanage();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   726
 
<a name="l00744"></a>00744                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   727
 
<a name="l00745"></a>00745
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   728
 
<a name="l00746"></a>00746         ~CManagedUserTwoPhase()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   729
 
<a name="l00747"></a>00747                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   730
 
<a name="l00748"></a>00748                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   731
 
<a name="l00749"></a>00749 <span class="comment">                The iTicker manager will automatically delete the CTicker</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   732
 
<a name="l00750"></a>00750 <span class="comment">                The iTimer manager will automatically Close() the RTimer.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   733
 
<a name="l00751"></a>00751 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   734
 
<a name="l00752"></a>00752                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   735
 
<a name="l00753"></a>00753
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   736
 
<a name="l00754"></a>00754         CTicker&amp; Ticker()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   737
 
<a name="l00755"></a>00755                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   738
 
<a name="l00756"></a>00756                 <span class="comment">// If we dereference the management object we get a CTicker&amp;.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   739
 
<a name="l00757"></a>00757                 <span class="keywordflow">return</span> *iTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   740
 
<a name="l00758"></a>00758                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   741
 
<a name="l00759"></a>00759
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   742
 
<a name="l00760"></a>00760         RTimer&amp; Timer()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   743
 
<a name="l00761"></a>00761                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   744
 
<a name="l00762"></a>00762                 <span class="comment">// If we dereference the management object we get an RTimer&amp;.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   745
 
<a name="l00763"></a>00763                 <span class="keywordflow">return</span> *iTimer;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   746
 
<a name="l00764"></a>00764                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   747
 
<a name="l00765"></a>00765
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   748
 
<a name="l00766"></a>00766 <span class="keyword">private</span>:
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   749
 
<a name="l00767"></a>00767
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   750
 
<a name="l00768"></a>00768         <span class="keyword">virtual</span> <span class="keywordtype">void</span> ConstructL(CTicker* aTicker)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   751
 
<a name="l00769"></a>00769                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   752
 
<a name="l00770"></a>00770                 <span class="comment">// Take ownership and manage aTicker.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   753
 
<a name="l00771"></a>00771                 iTicker = aTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   754
 
<a name="l00772"></a>00772
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   755
 
<a name="l00773"></a>00773                 <span class="comment">// Note use of -&gt; to indirect through the management wrapper.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   756
 
<a name="l00774"></a>00774                 iTimer-&gt;CreateLocal() OR_LEAVE;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   757
 
<a name="l00775"></a>00775                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   758
 
<a name="l00776"></a>00776
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   759
 
<a name="l00777"></a>00777         CManagedUserTwoPhase()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   760
 
<a name="l00778"></a>00778                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   761
 
<a name="l00779"></a>00779                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   762
 
<a name="l00780"></a>00780 <span class="comment">                Everything interesting happens in ConstructL() in this</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   763
 
<a name="l00781"></a>00781 <span class="comment">                version. </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   764
 
<a name="l00782"></a>00782 <span class="comment"></span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   765
 
<a name="l00783"></a>00783 <span class="comment">                Default initialization of the iName LString does not</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   766
 
<a name="l00784"></a>00784 <span class="comment">                allocate a heap buffer, and so cannot leave. As long as</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   767
 
<a name="l00785"></a>00785 <span class="comment">                initialization is deferred to ConstructL(), LStrings can be</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   768
 
<a name="l00786"></a>00786 <span class="comment">                used safely with two-phase construction.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   769
 
<a name="l00787"></a>00787 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   770
 
<a name="l00788"></a>00788                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   771
 
<a name="l00789"></a>00789
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   772
 
<a name="l00790"></a>00790 <span class="keyword">private</span>:
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   773
 
<a name="l00791"></a>00791         <span class="comment">// We have to use LManagedXxx for fields, not LCleanedupXxx</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   774
 
<a name="l00792"></a>00792         LManagedPtr&lt;CTicker&gt; iTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   775
 
<a name="l00793"></a>00793         LManagedHandle&lt;RTimer&gt; iTimer;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   776
 
<a name="l00794"></a>00794         };
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   777
 
<a name="l00795"></a>00795
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   778
 
<a name="l00808"></a>00808 <span class="keyword">class </span>CManagedUserSinglePhase : <span class="keyword">public</span> CBase
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   779
 
<a name="l00809"></a>00809         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   780
 
<a name="l00810"></a>00810 <span class="keyword">public</span>:
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   781
 
<a name="l00811"></a>00811         <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   782
 
<a name="l00812"></a>00812 <span class="comment">        This macro is necessary to ensure cleanup is correctly handled</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   783
 
<a name="l00813"></a>00813 <span class="comment">        in the event that a constructor may leave beneath a call to</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   784
 
<a name="l00814"></a>00814 <span class="comment">        new(ELeave)</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   785
 
<a name="l00815"></a>00815 <span class="comment">        */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   786
 
<a name="l00816"></a>00816         CONSTRUCTORS_MAY_LEAVE
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   787
 
<a name="l00817"></a>00817
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   788
 
<a name="l00818"></a>00818         <span class="keyword">static</span> CManagedUserSinglePhase* NewL(CTicker* aTicker)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   789
 
<a name="l00819"></a>00819                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   790
 
<a name="l00820"></a>00820                 <span class="keywordflow">return</span> <span class="keyword">new</span>(ELeave) CManagedUserSinglePhase(aTicker);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   791
 
<a name="l00821"></a>00821                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   792
 
<a name="l00822"></a>00822
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   793
 
<a name="l00823"></a>00823         ~CManagedUserSinglePhase()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   794
 
<a name="l00824"></a>00824                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   795
 
<a name="l00825"></a>00825                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   796
 
<a name="l00826"></a>00826 <span class="comment">                The iTicker manager destructor will automatically Zap() the CTicker.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   797
 
<a name="l00827"></a>00827 <span class="comment">                The iTimer manager destructor will automatically Close() the RTimer.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   798
 
<a name="l00828"></a>00828 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   799
 
<a name="l00829"></a>00829                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   800
 
<a name="l00830"></a>00830
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   801
 
<a name="l00831"></a>00831         CTicker&amp; Ticker()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   802
 
<a name="l00832"></a>00832                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   803
 
<a name="l00833"></a>00833                 <span class="comment">// If we dereference the management object we get a CTicker&amp;.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   804
 
<a name="l00834"></a>00834                 <span class="keywordflow">return</span> *iTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   805
 
<a name="l00835"></a>00835                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   806
 
<a name="l00836"></a>00836
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   807
 
<a name="l00837"></a>00837         RTimer&amp; Timer()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   808
 
<a name="l00838"></a>00838                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   809
 
<a name="l00839"></a>00839                 <span class="comment">// If we dereference the management object we get an RTimer&amp;.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   810
 
<a name="l00840"></a>00840                 <span class="keywordflow">return</span> *iTimer;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   811
 
<a name="l00841"></a>00841                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   812
 
<a name="l00842"></a>00842
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   813
 
<a name="l00843"></a>00843 <span class="keyword">private</span>:
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   814
 
<a name="l00844"></a>00844         CManagedUserSinglePhase(CTicker* aTicker)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   815
 
<a name="l00845"></a>00845                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   816
 
<a name="l00846"></a>00846 <span class="comment">                Take ownership and manage aTicker. Note that initialization</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   817
 
<a name="l00847"></a>00847 <span class="comment">                of the LManagedXxx classes does not actually leave, but</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   818
 
<a name="l00848"></a>00848 <span class="comment">                initialization of the LCleanedupXxx classes can.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   819
 
<a name="l00849"></a>00849 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   820
 
<a name="l00850"></a>00850                 : iTicker(aTicker)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   821
 
<a name="l00851"></a>00851                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   822
 
<a name="l00852"></a>00852                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   823
 
<a name="l00853"></a>00853 <span class="comment">                If iTicker initialization is successful but the constructor</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   824
 
<a name="l00854"></a>00854 <span class="comment">                then goes on to leave later, iTicker (like all fields fully</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   825
 
<a name="l00855"></a>00855 <span class="comment">                constructed at the point of a leave in a constructor) will</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   826
 
<a name="l00856"></a>00856 <span class="comment">                be destructed, and the manager will cleanup the CTicker.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   827
 
<a name="l00857"></a>00857 <span class="comment"></span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   828
 
<a name="l00858"></a>00858 <span class="comment">                Note use of -&gt; to indirect through the management wrapper.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   829
 
<a name="l00859"></a>00859 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   830
 
<a name="l00860"></a>00860                 iTimer-&gt;CreateLocal();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   831
 
<a name="l00861"></a>00861
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   832
 
<a name="l00862"></a>00862                 <span class="comment">// Likewise if we leave here, both iTicker and iTimer will</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   833
 
<a name="l00863"></a>00863                 <span class="comment">// undergo managed cleanup.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   834
 
<a name="l00864"></a>00864                 MaybeLeave();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   835
 
<a name="l00865"></a>00865                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   836
 
<a name="l00866"></a>00866
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   837
 
<a name="l00867"></a>00867 <span class="keyword">private</span>:
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   838
 
<a name="l00868"></a>00868         <span class="comment">// We have to use LManagedXxx for fields, not LCleanedupXxx.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   839
 
<a name="l00869"></a>00869         LManagedPtr&lt;CTicker, TTickerZapStrategy&gt; iTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   840
 
<a name="l00870"></a>00870         LManagedHandle&lt;RTimer&gt; iTimer;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   841
 
<a name="l00871"></a>00871         };
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   842
 
<a name="l00872"></a>00872
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   843
 
<a name="l00873"></a>00873 <span class="comment">//Class definition of trivial R-Class</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   844
 
<a name="l00874"></a>00874 <span class="keyword">class </span>RSimple
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   845
 
<a name="l00875"></a>00875         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   846
 
<a name="l00876"></a>00876 <span class="keyword">public</span>:
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   847
 
<a name="l00877"></a>00877
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   848
 
<a name="l00878"></a>00878         RSimple(){iData = NULL;}
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   849
 
<a name="l00879"></a>00879
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   850
 
<a name="l00880"></a>00880         <span class="comment">//Open function sets value</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   851
 
<a name="l00881"></a>00881         <span class="keywordtype">void</span> OpenL(TInt aValue)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   852
 
<a name="l00882"></a>00882                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   853
 
<a name="l00883"></a>00883                 iData = <span class="keyword">new</span>(ELeave) TInt(aValue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   854
 
<a name="l00884"></a>00884                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   855
 
<a name="l00885"></a>00885
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   856
 
<a name="l00886"></a>00886         <span class="comment">//Cleanup function – frees resource</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   857
 
<a name="l00887"></a>00887         <span class="keywordtype">void</span> Close()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   858
 
<a name="l00888"></a>00888                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   859
 
<a name="l00889"></a>00889                 <span class="keyword">delete</span> iData;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   860
 
<a name="l00890"></a>00890                 iData = NULL;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   861
 
<a name="l00891"></a>00891                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   862
 
<a name="l00892"></a>00892
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   863
 
<a name="l00893"></a>00893         <span class="comment">//Cleanup function – frees resource</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   864
 
<a name="l00894"></a>00894         <span class="keywordtype">void</span> Free()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   865
 
<a name="l00895"></a>00895                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   866
 
<a name="l00896"></a>00896                 <span class="keyword">delete</span> iData;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   867
 
<a name="l00897"></a>00897                 iData = NULL;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   868
 
<a name="l00898"></a>00898                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   869
 
<a name="l00899"></a>00899
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   870
 
<a name="l00900"></a>00900         <span class="comment">//Cleanup function – frees resource</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   871
 
<a name="l00901"></a>00901         <span class="keywordtype">void</span> ReleaseData()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   872
 
<a name="l00902"></a>00902                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   873
 
<a name="l00903"></a>00903                 <span class="keyword">delete</span> iData;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   874
 
<a name="l00904"></a>00904                 iData = NULL;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   875
 
<a name="l00905"></a>00905                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   876
 
<a name="l00906"></a>00906
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   877
 
<a name="l00907"></a>00907         <span class="comment">//static cleanup function – frees aRSimple resources</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   878
 
<a name="l00908"></a>00908         <span class="keyword">static</span> <span class="keywordtype">void</span> Cleanup(TAny* aRSimple)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   879
 
<a name="l00909"></a>00909                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   880
 
<a name="l00910"></a>00910                 <span class="keyword">static_cast&lt;</span>RSimple*<span class="keyword">&gt;</span>(aRSimple)-&gt;Close();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   881
 
<a name="l00911"></a>00911                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   882
 
<a name="l00912"></a>00912
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   883
 
<a name="l00913"></a>00913
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   884
 
<a name="l00914"></a>00914 <span class="keyword">private</span>:
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   885
 
<a name="l00915"></a>00915         TInt* iData;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   886
 
<a name="l00916"></a>00916
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   887
 
<a name="l00917"></a>00917         };
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   888
 
<a name="l00918"></a>00918
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   889
 
<a name="l00919"></a>00919
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   890
 
<a name="l00926"></a>00926 DEFINE_CLEANUP_FUNCTION(RSimple, ReleaseData);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   891
 
<a name="l00927"></a>00927
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   892
 
<a name="l00928"></a>00928
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   893
 
<a name="l00929"></a>00929 <span class="keywordtype">void</span> WalkthroughManagedL()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   894
 
<a name="l00930"></a>00930         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   895
 
<a name="l00931"></a>00931         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtOption2,<span class="stringliteral">&quot;Option2: Object creation and resource management using EUser high level library\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   896
 
<a name="l00932"></a>00932         gConsole-&gt;Printf(KTxtOption2);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   897
 
<a name="l00933"></a>00933                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   898
 
<a name="l00934"></a>00934                 <span class="comment">// Trivially exercise the manager-using classes defined above.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   899
 
<a name="l00935"></a>00935                 CTicker* ticker1 = <span class="keyword">new</span>(ELeave) CTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   900
 
<a name="l00936"></a>00936                 LCleanedupPtr&lt;CManagedUserTwoPhase&gt; one(CManagedUserTwoPhase::NewL(ticker1));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   901
 
<a name="l00937"></a>00937                 <span class="keywordflow">if</span>(&amp;one-&gt;Ticker() == ticker1)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   902
 
<a name="l00938"></a>00938                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   903
 
<a name="l00939"></a>00939                         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtLCleanedupPtrDemo1,<span class="stringliteral">&quot;Creating an instance of CTicker using LCleanedupPtr\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   904
 
<a name="l00940"></a>00940                         gConsole-&gt;Printf(KTxtLCleanedupPtrDemo1);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   905
 
<a name="l00941"></a>00941                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   906
 
<a name="l00942"></a>00942                 one-&gt;Timer().Cancel(); <span class="comment">// Just to check we can get at it</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   907
 
<a name="l00943"></a>00943
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   908
 
<a name="l00944"></a>00944                 CTicker* ticker2 = <span class="keyword">new</span>(ELeave) CTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   909
 
<a name="l00945"></a>00945                 LCleanedupPtr&lt;CManagedUserSinglePhase&gt; two(CManagedUserSinglePhase::NewL(ticker2));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   910
 
<a name="l00946"></a>00946                 <span class="keywordflow">if</span>(&amp;two-&gt;Ticker() == ticker2)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   911
 
<a name="l00947"></a>00947                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   912
 
<a name="l00948"></a>00948                         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtLCleanedupPtrDemo2,<span class="stringliteral">&quot;Creating second instance of CTicker using LCleanedupPtr\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   913
 
<a name="l00949"></a>00949                         gConsole-&gt;Printf(KTxtLCleanedupPtrDemo2);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   914
 
<a name="l00950"></a>00950                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   915
 
<a name="l00951"></a>00951                 two-&gt;Timer().Cancel(); <span class="comment">// Just to check we can get at it</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   916
 
<a name="l00952"></a>00952         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtLCleanedupPtr,<span class="stringliteral">&quot;Both instances are automatically deleted as we go out of scope\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   917
 
<a name="l00953"></a>00953         gConsole-&gt;Printf(KTxtLCleanedupPtr);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   918
 
<a name="l00954"></a>00954         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   919
 
<a name="l00955"></a>00955         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   920
 
<a name="l00956"></a>00956                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   921
 
<a name="l00957"></a>00957
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   922
 
<a name="l00958"></a>00958                 <span class="comment">// Always use LCleanedupXxx for locals, not LManagedXxx</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   923
 
<a name="l00959"></a>00959
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   924
 
<a name="l00960"></a>00960                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   925
 
<a name="l00961"></a>00961                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   926
 
<a name="l00962"></a>00962 <span class="comment">                Behind the scenes the LCleanedupXxx constructors push a</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   927
 
<a name="l00963"></a>00963 <span class="comment">                cleanup item onto the cleanup stack and so may leave. If</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   928
 
<a name="l00964"></a>00964 <span class="comment">                there is a leave during construction, the supplied pointer</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   929
 
<a name="l00965"></a>00965 <span class="comment">                will still get cleaned up.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   930
 
<a name="l00966"></a>00966 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   931
 
<a name="l00967"></a>00967                 LCleanedupPtr&lt;CTicker&gt; t(<span class="keyword">new</span>(ELeave) CTicker);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   932
 
<a name="l00968"></a>00968
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   933
 
<a name="l00969"></a>00969                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   934
 
<a name="l00970"></a>00970 <span class="comment">                We can access CTicker&#39;s members via the management object</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   935
 
<a name="l00971"></a>00971 <span class="comment">                using -&gt;</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   936
 
<a name="l00972"></a>00972 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   937
 
<a name="l00973"></a>00973                 t-&gt;Tick();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   938
 
<a name="l00974"></a>00974                 t-&gt;Tock();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   939
 
<a name="l00975"></a>00975                 <span class="keywordflow">if</span>(t-&gt;iTicks == t-&gt;iTocks)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   940
 
<a name="l00976"></a>00976                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   941
 
<a name="l00977"></a>00977                         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtLCleanedupPtrDemo3,<span class="stringliteral">&quot;CTicker members access using LCleanedupPtr is successful\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   942
 
<a name="l00978"></a>00978                         gConsole-&gt;Printf(KTxtLCleanedupPtrDemo3);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   943
 
<a name="l00979"></a>00979                         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   944
 
<a name="l00980"></a>00980                 gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   945
 
<a name="l00981"></a>00981                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   946
 
<a name="l00982"></a>00982
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   947
 
<a name="l00983"></a>00983                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   948
 
<a name="l00984"></a>00984 <span class="comment">                We can get at a reference to the managed object using *</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   949
 
<a name="l00985"></a>00985 <span class="comment">                when we need to, e.g. if we need to pass it to a function.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   950
 
<a name="l00986"></a>00986 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   951
 
<a name="l00987"></a>00987                 RegisterTicker(*t); <span class="comment">// Takes a CTicker&amp;</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   952
 
<a name="l00988"></a>00988
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   953
 
<a name="l00989"></a>00989                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   954
 
<a name="l00990"></a>00990 <span class="comment">                If some unfriendly interface needs a pointer rather than a</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   955
 
<a name="l00991"></a>00991 <span class="comment">                ref, we have a couple of options.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   956
 
<a name="l00992"></a>00992 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   957
 
<a name="l00993"></a>00993                 RegisterTickerPtr(&amp;*t); <span class="comment">// Takes a CTicker*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   958
 
<a name="l00994"></a>00994                 RegisterTickerPtr(t.Get()); <span class="comment">// Takes a CTicker*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   959
 
<a name="l00995"></a>00995
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   960
 
<a name="l00996"></a>00996                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   961
 
<a name="l00997"></a>00997 <span class="comment">                Note the use of . in t.Get() above; this distinguishes</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   962
 
<a name="l00998"></a>00998 <span class="comment">                operations on the managing type from operations on the</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   963
 
<a name="l00999"></a>00999 <span class="comment">                managed object.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   964
 
<a name="l01000"></a>01000 <span class="comment">                </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   965
 
<a name="l01001"></a>01001 <span class="comment">                When the management object goes out of scope, either</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   966
 
<a name="l01002"></a>01002 <span class="comment">                normally or as the result of a leave, the managed object is</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   967
 
<a name="l01003"></a>01003 <span class="comment">                automatically deleted.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   968
 
<a name="l01004"></a>01004 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   969
 
<a name="l01005"></a>01005                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   970
 
<a name="l01006"></a>01006
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   971
 
<a name="l01007"></a>01007                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   972
 
<a name="l01008"></a>01008                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   973
 
<a name="l01009"></a>01009 <span class="comment">                Sometimes you need to protect something temporarily before</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   974
 
<a name="l01010"></a>01010 <span class="comment">                transferring ownership e.g. by returning the pointer or</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   975
 
<a name="l01011"></a>01011 <span class="comment">                passing it to a function that takes ownership.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   976
 
<a name="l01012"></a>01012 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   977
 
<a name="l01013"></a>01013
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   978
 
<a name="l01014"></a>01014                 LCleanedupPtr&lt;CTicker&gt; t(<span class="keyword">new</span>(ELeave) CTicker);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   979
 
<a name="l01015"></a>01015
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   980
 
<a name="l01016"></a>01016                 <span class="comment">// Protected while we do this</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   981
 
<a name="l01017"></a>01017                 MaybeLeave();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   982
 
<a name="l01018"></a>01018
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   983
 
<a name="l01019"></a>01019                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   984
 
<a name="l01020"></a>01020 <span class="comment">                But now we want to hand it off, so we use Unmanage() to</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   985
 
<a name="l01021"></a>01021 <span class="comment">                both return a pointer and break the management link</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   986
 
<a name="l01022"></a>01022 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   987
 
<a name="l01023"></a>01023                 TakeTickerOwnership(t.Unmanage());
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   988
 
<a name="l01024"></a>01024
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   989
 
<a name="l01025"></a>01025                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   990
 
<a name="l01026"></a>01026 <span class="comment">                Now when it goes out of scope, no cleanup action is</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   991
 
<a name="l01027"></a>01027 <span class="comment">                performed.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   992
 
<a name="l01028"></a>01028 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   993
 
<a name="l01029"></a>01029                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   994
 
<a name="l01030"></a>01030
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   995
 
<a name="l01031"></a>01031                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   996
 
<a name="l01032"></a>01032                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   997
 
<a name="l01033"></a>01033 <span class="comment">                If needed, it is possible to reuse a manager by using = to</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   998
 
<a name="l01034"></a>01034 <span class="comment">                assign it a new managed object.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
   999
 
<a name="l01035"></a>01035 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1000
 
<a name="l01036"></a>01036
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1001
 
<a name="l01037"></a>01037                 <span class="comment">// Not managing anything to start with</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1002
 
<a name="l01038"></a>01038                 LCleanedupPtr&lt;CTicker&gt; t;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1003
 
<a name="l01039"></a>01039                 <span class="keywordflow">if</span>(t.Get() == NULL)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1004
 
<a name="l01040"></a>01040                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1005
 
<a name="l01041"></a>01041                         <span class="comment">//Successfully initialised to NULL</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1006
 
<a name="l01042"></a>01042                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1007
 
<a name="l01043"></a>01043                 <span class="keywordflow">if</span>(&amp;*t == NULL)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1008
 
<a name="l01044"></a>01044                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1009
 
<a name="l01045"></a>01045                         <span class="comment">//CTicker* value is also NULL</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1010
 
<a name="l01046"></a>01046                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1011
 
<a name="l01047"></a>01047
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1012
 
<a name="l01048"></a>01048                 <span class="keywordflow">for</span> (TInt i = 0; i &lt; 10; ++i)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1013
 
<a name="l01049"></a>01049                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1014
 
<a name="l01050"></a>01050                         <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1015
 
<a name="l01051"></a>01051 <span class="comment">                        If an object is already being managed, it is cleaned up</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1016
 
<a name="l01052"></a>01052 <span class="comment">                        before taking ownership of the new object.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1017
 
<a name="l01053"></a>01053 <span class="comment">                        */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1018
 
<a name="l01054"></a>01054                         t = <span class="keyword">new</span>(ELeave) CTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1019
 
<a name="l01055"></a>01055                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1020
 
<a name="l01056"></a>01056                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1021
 
<a name="l01057"></a>01057 <span class="comment">                We&#39;re left owning the final ticker instance, all prior</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1022
 
<a name="l01058"></a>01058 <span class="comment">                instances having been automatically deleted.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1023
 
<a name="l01059"></a>01059 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1024
 
<a name="l01060"></a>01060                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1025
 
<a name="l01061"></a>01061
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1026
 
<a name="l01062"></a>01062                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1027
 
<a name="l01063"></a>01063                 <span class="comment">// If you have stateful code where a pointer can sometimes be NULL.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1028
 
<a name="l01064"></a>01064                 LCleanedupPtr&lt;CTicker&gt; t(<span class="keyword">new</span>(ELeave) CTicker);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1029
 
<a name="l01065"></a>01065
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1030
 
<a name="l01066"></a>01066                 <span class="comment">// Does t refer to NULL?</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1031
 
<a name="l01067"></a>01067                 <span class="keywordflow">if</span> (!t)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1032
 
<a name="l01068"></a>01068                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1033
 
<a name="l01069"></a>01069                         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtNull,<span class="stringliteral">&quot;LCleanedupPtr object refers to Null\n&quot;</span> );
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1034
 
<a name="l01070"></a>01070                         gConsole-&gt;Printf(KTxtNull);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1035
 
<a name="l01071"></a>01071                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1036
 
<a name="l01072"></a>01072
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1037
 
<a name="l01073"></a>01073                 t = NULL; <span class="comment">// Also releases the currently managed CTicker </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1038
 
<a name="l01074"></a>01074
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1039
 
<a name="l01075"></a>01075                 <span class="comment">// Does t refer to a non-NULL pointer?</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1040
 
<a name="l01076"></a>01076                 <span class="keywordflow">if</span> (t)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1041
 
<a name="l01077"></a>01077                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1042
 
<a name="l01078"></a>01078                         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtNonNull,<span class="stringliteral">&quot;LCleanedupPtr object refers to Non Null pointer\n&quot;</span> );
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1043
 
<a name="l01079"></a>01079                         gConsole-&gt;Printf(KTxtNonNull);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1044
 
<a name="l01080"></a>01080                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1045
 
<a name="l01081"></a>01081                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1046
 
<a name="l01082"></a>01082
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1047
 
<a name="l01083"></a>01083                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1048
 
<a name="l01084"></a>01084                 <span class="comment">// LCleanedupPtr uses delete to cleanup by default, but alternative cleanups can be specified</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1049
 
<a name="l01085"></a>01085
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1050
 
<a name="l01086"></a>01086                 <span class="comment">// We just want to free this one and not invoke the destructor</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1051
 
<a name="l01087"></a>01087                 LCleanedupPtr&lt;CTicker, TPointerFree&gt; t(static_cast&lt;CTicker*&gt;(User::AllocL(<span class="keyword">sizeof</span>(CTicker))));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1052
 
<a name="l01088"></a>01088
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1053
 
<a name="l01089"></a>01089                 <span class="comment">// Now User::Free() is called when t goes out of scope</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1054
 
<a name="l01090"></a>01090                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1055
 
<a name="l01091"></a>01091
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1056
 
<a name="l01092"></a>01092                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1057
 
<a name="l01093"></a>01093                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1058
 
<a name="l01094"></a>01094 <span class="comment">                As well as the stock options, custom cleanup policies can</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1059
 
<a name="l01095"></a>01095 <span class="comment">                also be defined. See above for the definition of</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1060
 
<a name="l01096"></a>01096 <span class="comment">                TTickerZap.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1061
 
<a name="l01097"></a>01097 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1062
 
<a name="l01098"></a>01098                 LCleanedupPtr&lt;CTicker, TTickerZapStrategy&gt; t(<span class="keyword">new</span>(ELeave) CTicker);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1063
 
<a name="l01099"></a>01099
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1064
 
<a name="l01100"></a>01100                 <span class="comment">// Now Zap() is called on the CTicker instance when t goes out of scope</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1065
 
<a name="l01101"></a>01101                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1066
 
<a name="l01102"></a>01102
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1067
 
<a name="l01103"></a>01103                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1068
 
<a name="l01104"></a>01104                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1069
 
<a name="l01105"></a>01105 <span class="comment">                LCleanedupHandle is very similar in behaviour to</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1070
 
<a name="l01106"></a>01106 <span class="comment">                LCleanedupPtr, the main difference being that it can define</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1071
 
<a name="l01107"></a>01107 <span class="comment">                and contain its own instance of a handle rather than</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1072
 
<a name="l01108"></a>01108 <span class="comment">                being supplied one.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1073
 
<a name="l01109"></a>01109 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1074
 
<a name="l01110"></a>01110                 LCleanedupHandle&lt;RTimer&gt; t;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1075
 
<a name="l01111"></a>01111
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1076
 
<a name="l01112"></a>01112                 <span class="comment">// Again, access to managed handle members is via -&gt;</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1077
 
<a name="l01113"></a>01113                 t-&gt;CreateLocal() OR_LEAVE;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1078
 
<a name="l01114"></a>01114                 t-&gt;Cancel();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1079
 
<a name="l01115"></a>01115
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1080
 
<a name="l01116"></a>01116                 <span class="comment">//We can get a reference to the handle for passing to functions using *</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1081
 
<a name="l01117"></a>01117                 RegisterTimer(*t);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1082
 
<a name="l01118"></a>01118
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1083
 
<a name="l01119"></a>01119                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1084
 
<a name="l01120"></a>01120 <span class="comment">                When the management object goes out of scope, either</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1085
 
<a name="l01121"></a>01121 <span class="comment">                normally or as the result of a leave, the managed object is</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1086
 
<a name="l01122"></a>01122 <span class="comment">                automatically cleanup by calling Close() on it.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1087
 
<a name="l01123"></a>01123 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1088
 
<a name="l01124"></a>01124                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1089
 
<a name="l01125"></a>01125
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1090
 
<a name="l01126"></a>01126                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1091
 
<a name="l01127"></a>01127                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1092
 
<a name="l01128"></a>01128 <span class="comment">                LCleanedupHandle calls Close() by default, but alternative</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1093
 
<a name="l01129"></a>01129 <span class="comment">                cleanups can be specified.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1094
 
<a name="l01130"></a>01130 <span class="comment">                </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1095
 
<a name="l01131"></a>01131 <span class="comment">                We want this RPointerArray cleanup with with</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1096
 
<a name="l01132"></a>01132 <span class="comment">                ResetAndDestroy instead of Close().</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1097
 
<a name="l01133"></a>01133 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1098
 
<a name="l01134"></a>01134                 LCleanedupHandle&lt;RPointerArray&lt;HBufC&gt;, TResetAndDestroy&gt; array;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1099
 
<a name="l01135"></a>01135                 <span class="keywordflow">for</span> (TInt i = 0; i &lt; 10; ++i)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1100
 
<a name="l01136"></a>01136                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1101
 
<a name="l01137"></a>01137                         array-&gt;AppendL(HBufC::NewL(5));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1102
 
<a name="l01138"></a>01138                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1103
 
<a name="l01139"></a>01139
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1104
 
<a name="l01140"></a>01140                 <span class="comment">//Now when array goes out of scope, ResetAndDestroy is called to clean it up.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1105
 
<a name="l01141"></a>01141                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1106
 
<a name="l01142"></a>01142
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1107
 
<a name="l01143"></a>01143                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1108
 
<a name="l01144"></a>01144                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1109
 
<a name="l01145"></a>01145 <span class="comment">                As well as the stock options, custom cleanup policies can</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1110
 
<a name="l01146"></a>01146 <span class="comment">                also be defined. See above for the definition of TCancelClose.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1111
 
<a name="l01147"></a>01147 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1112
 
<a name="l01148"></a>01148                 LCleanedupHandle&lt;RTimer, TCancelClose&gt; t;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1113
 
<a name="l01149"></a>01149                 t-&gt;CreateLocal();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1114
 
<a name="l01150"></a>01150
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1115
 
<a name="l01151"></a>01151                 <span class="comment">// Now Cancel() followed by Close() are called when t goes out of scope</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1116
 
<a name="l01152"></a>01152                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1117
 
<a name="l01153"></a>01153
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1118
 
<a name="l01154"></a>01154
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1119
 
<a name="l01155"></a>01155                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1120
 
<a name="l01156"></a>01156                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1121
 
<a name="l01157"></a>01157 <span class="comment">                LCleanedupHandleRef calls Close() by default, but alternative</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1122
 
<a name="l01158"></a>01158 <span class="comment">                cleanups can be specified.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1123
 
<a name="l01159"></a>01159 <span class="comment">                </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1124
 
<a name="l01160"></a>01160 <span class="comment">                We want this RPointerArray cleanup with</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1125
 
<a name="l01161"></a>01161 <span class="comment">                ResetAndDestroy instead of Close().</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1126
 
<a name="l01162"></a>01162 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1127
 
<a name="l01163"></a>01163                 RPointerArray&lt;HBufC&gt; rar;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1128
 
<a name="l01164"></a>01164                 <span class="comment">// calls to functions that cannot leave here</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1129
 
<a name="l01165"></a>01165                 rar.Append(HBufC::NewL(5));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1130
 
<a name="l01166"></a>01166                 rar.Append(HBufC::NewL(5));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1131
 
<a name="l01167"></a>01167
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1132
 
<a name="l01168"></a>01168
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1133
 
<a name="l01169"></a>01169                 LCleanedupRef&lt;RPointerArray&lt;HBufC&gt;, TResetAndDestroy&gt; array(rar);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1134
 
<a name="l01170"></a>01170                 <span class="comment">// calls to functions that could leave here</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1135
 
<a name="l01171"></a>01171                 <span class="keywordflow">for</span> (TInt i = 0; i &lt; 10; ++i)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1136
 
<a name="l01172"></a>01172                         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1137
 
<a name="l01173"></a>01173                         array-&gt;AppendL(HBufC::NewL(5));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1138
 
<a name="l01174"></a>01174                         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1139
 
<a name="l01175"></a>01175
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1140
 
<a name="l01176"></a>01176                 <span class="comment">// Now when array goes out of scope, ResetAndDestroy is called to clean it up</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1141
 
<a name="l01177"></a>01177                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1142
 
<a name="l01178"></a>01178
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1143
 
<a name="l01179"></a>01179                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1144
 
<a name="l01180"></a>01180                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1145
 
<a name="l01181"></a>01181 <span class="comment">                Never mix direct cleanup stack API calls with management</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1146
 
<a name="l01182"></a>01182 <span class="comment">                class use within the same function, because their</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1147
 
<a name="l01183"></a>01183 <span class="comment">                interaction can be confusing and counter-intuitive. Avoid</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1148
 
<a name="l01184"></a>01184 <span class="comment">                the use of LC methods that leave objects on the cleanup</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1149
 
<a name="l01185"></a>01185 <span class="comment">                stack, and use L methods instead.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1150
 
<a name="l01186"></a>01186 <span class="comment"></span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1151
 
<a name="l01187"></a>01187 <span class="comment">                If a badly-behaved API were to offer only an LC variant,</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1152
 
<a name="l01188"></a>01188 <span class="comment">                you would have to use it as follows</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1153
 
<a name="l01189"></a>01189 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1154
 
<a name="l01190"></a>01190                 HBufC* raw = HBufC::NewLC(5);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1155
 
<a name="l01191"></a>01191                 <span class="comment">// Must pop immediately to balance the cleanup stack, before instantiating the manager</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1156
 
<a name="l01192"></a>01192                 CleanupStack::Pop();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1157
 
<a name="l01193"></a>01193                 LCleanedupPtr&lt;HBufC&gt; wrapped(raw);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1158
 
<a name="l01194"></a>01194
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1159
 
<a name="l01195"></a>01195                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1160
 
<a name="l01196"></a>01196 <span class="comment">                Never do this:</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1161
 
<a name="l01197"></a>01197 <span class="comment">                LCleanedupPtr&lt;HBufC&gt; buf(HBufC::NewLC(5));</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1162
 
<a name="l01198"></a>01198 <span class="comment">                CleanupStack::Pop();</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1163
 
<a name="l01199"></a>01199 <span class="comment">                because the manager will be popped (having been pushed</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1164
 
<a name="l01200"></a>01200 <span class="comment">                last), not the raw buf pointer as you might have hoped</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1165
 
<a name="l01201"></a>01201 <span class="comment"></span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1166
 
<a name="l01202"></a>01202 <span class="comment">                A cleaner alternative may be to write your own L function</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1167
 
<a name="l01203"></a>01203 <span class="comment">                wrapper around the LC function supplied.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1168
 
<a name="l01204"></a>01204 <span class="comment"></span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1169
 
<a name="l01205"></a>01205 <span class="comment">                Luckily this situation (an LC method without a</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1170
 
<a name="l01206"></a>01206 <span class="comment">                corresponding L method) is rare in practice.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1171
 
<a name="l01207"></a>01207 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1172
 
<a name="l01208"></a>01208                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1173
 
<a name="l01209"></a>01209
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1174
 
<a name="l01210"></a>01210                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1175
 
<a name="l01211"></a>01211                 <span class="comment">// Although rarely used on the Symbian platform, C++ arrays are supported with a custom management class</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1176
 
<a name="l01212"></a>01212                 LCleanedupArray&lt;CTicker&gt; array(<span class="keyword">new</span> CTicker[5]);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1177
 
<a name="l01213"></a>01213
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1178
 
<a name="l01214"></a>01214                 <span class="comment">// The array is cleaned up with delete[] on scope exit</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1179
 
<a name="l01215"></a>01215                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1180
 
<a name="l01216"></a>01216
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1181
 
<a name="l01217"></a>01217                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1182
 
<a name="l01218"></a>01218                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1183
 
<a name="l01219"></a>01219 <span class="comment">                Although most cases are best covered by applying custom</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1184
 
<a name="l01220"></a>01220 <span class="comment">                cleanup policies to the management classes already</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1185
 
<a name="l01221"></a>01221 <span class="comment">                described, there is also a general TCleanupItem style</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1186
 
<a name="l01222"></a>01222 <span class="comment">                cleanup option.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1187
 
<a name="l01223"></a>01223 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1188
 
<a name="l01224"></a>01224                 TAny* data = NULL; <span class="comment">// But could be anything</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1189
 
<a name="l01225"></a>01225                 LCleanedupGuard guard1(BespokeCleanupFunction, data);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1190
 
<a name="l01226"></a>01226                 <span class="comment">// On scope exit BespokeCleanupFunction() is called on data.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1191
 
<a name="l01227"></a>01227
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1192
 
<a name="l01228"></a>01228                 LCleanedupGuard guard2(BespokeCleanupFunction, data);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1193
 
<a name="l01229"></a>01229                 <span class="comment">// But cleanup can also be disabled in this case, as follows:</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1194
 
<a name="l01230"></a>01230                 guard2.Dismiss();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1195
 
<a name="l01231"></a>01231                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1196
 
<a name="l01232"></a>01232
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1197
 
<a name="l01233"></a>01233                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1198
 
<a name="l01234"></a>01234                 LCleanedupHandle&lt;RFs&gt; managedFs;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1199
 
<a name="l01235"></a>01235                 managedFs-&gt;Connect();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1200
 
<a name="l01236"></a>01236                 <span class="comment">//default cleanup strategy is to call RFs::Close() on scope exit;</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1201
 
<a name="l01237"></a>01237                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1202
 
<a name="l01238"></a>01238
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1203
 
<a name="l01239"></a>01239                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1204
 
<a name="l01240"></a>01240                 LCleanedupHandle&lt;RSimple, TFree&gt; simple;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1205
 
<a name="l01241"></a>01241                 simple-&gt;OpenL(23);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1206
 
<a name="l01242"></a>01242                 <span class="comment">//Specified cleanup strategy is to call RSimple::Free() on scope exit;</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1207
 
<a name="l01243"></a>01243                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1208
 
<a name="l01244"></a>01244
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1209
 
<a name="l01245"></a>01245                 <span class="comment">/*</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1210
 
<a name="l01246"></a>01246 <span class="comment">                Because the DEFINE_CLEANUP_FUNCTION is defined above, the default</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1211
 
<a name="l01247"></a>01247 <span class="comment">                cleanup function for RSimple is RSimple::ReleaseData() rather than</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1212
 
<a name="l01248"></a>01248 <span class="comment">                RSimple::Close()</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1213
 
<a name="l01249"></a>01249 <span class="comment">                */</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1214
 
<a name="l01250"></a>01250                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1215
 
<a name="l01251"></a>01251                 LCleanedupHandle&lt;RSimple&gt; simple;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1216
 
<a name="l01252"></a>01252                 simple-&gt;OpenL(23);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1217
 
<a name="l01253"></a>01253                 <span class="comment">//Custom cleanup strategy is to call RSimple::ReleaseData() on scope exit</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1218
 
<a name="l01254"></a>01254                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1219
 
<a name="l01255"></a>01255
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1220
 
<a name="l01256"></a>01256                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1221
 
<a name="l01257"></a>01257                 RSimple simple;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1222
 
<a name="l01258"></a>01258
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1223
 
<a name="l01259"></a>01259                 <span class="comment">//The RSimple class above defines a static cleanup function</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1224
 
<a name="l01260"></a>01260                 <span class="comment">//RSimple::Cleanup().</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1225
 
<a name="l01261"></a>01261                 LCleanedupGuard guard(RSimple::Cleanup, &amp;simple);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1226
 
<a name="l01262"></a>01262
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1227
 
<a name="l01263"></a>01263                 simple.OpenL(10);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1228
 
<a name="l01264"></a>01264
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1229
 
<a name="l01265"></a>01265                 <span class="comment">//On scope exit RSimple::Cleanup() is called passing &amp;simple.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1230
 
<a name="l01266"></a>01266                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1231
 
<a name="l01267"></a>01267         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1232
 
<a name="l01268"></a>01268
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1233
 
<a name="l01269"></a>01269 <span class="keywordtype">void</span> WalkthroughUsageL()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1234
 
<a name="l01270"></a>01270         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1235
 
<a name="l01271"></a>01271         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtOption3,<span class="stringliteral">&quot;Option3: Memory used by EUser high level classes\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1236
 
<a name="l01272"></a>01272         gConsole-&gt;Printf(KTxtOption3);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1237
 
<a name="l01273"></a>01273         RFile file;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1238
 
<a name="l01274"></a>01274
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1239
 
<a name="l01275"></a>01275         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtSizeofRFile,<span class="stringliteral">&quot;Size of RFile = %d\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1240
 
<a name="l01276"></a>01276         gConsole-&gt;Printf(KTxtSizeofRFile, <span class="keyword">sizeof</span>(file));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1241
 
<a name="l01277"></a>01277
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1242
 
<a name="l01278"></a>01278         LCleanedupHandle&lt;RFile&gt; cFile;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1243
 
<a name="l01279"></a>01279
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1244
 
<a name="l01280"></a>01280         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtSizeofLCleanedupHandleRFile,<span class="stringliteral">&quot;Size of LCleanedupHandle&lt;RFile&gt; = %d\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1245
 
<a name="l01281"></a>01281         gConsole-&gt;Printf(KTxtSizeofLCleanedupHandleRFile, <span class="keyword">sizeof</span>(cFile));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1246
 
<a name="l01282"></a>01282         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1247
 
<a name="l01283"></a>01283         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1248
 
<a name="l01284"></a>01284
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1249
 
<a name="l01285"></a>01285         LCleanedupRef&lt;RFile&gt; crFile(file);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1250
 
<a name="l01286"></a>01286         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtSizeofLCleanedupRefRFile,<span class="stringliteral">&quot;Size of LCleanedupRef&lt;RFile&gt; = %d\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1251
 
<a name="l01287"></a>01287         gConsole-&gt;Printf(KTxtSizeofLCleanedupRefRFile, <span class="keyword">sizeof</span>(crFile));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1252
 
<a name="l01288"></a>01288         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1253
 
<a name="l01289"></a>01289         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1254
 
<a name="l01290"></a>01290
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1255
 
<a name="l01291"></a>01291         CTicker* tracker = <span class="keyword">new</span>(ELeave) CTicker;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1256
 
<a name="l01292"></a>01292         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtSizeofCTracker,<span class="stringliteral">&quot;Size of CTracker* = %d\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1257
 
<a name="l01293"></a>01293         gConsole-&gt;Printf(KTxtSizeofCTracker, <span class="keyword">sizeof</span>(tracker));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1258
 
<a name="l01294"></a>01294         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1259
 
<a name="l01295"></a>01295         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1260
 
<a name="l01296"></a>01296
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1261
 
<a name="l01297"></a>01297         LCleanedupPtr&lt;CTicker&gt; cTracker(tracker);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1262
 
<a name="l01298"></a>01298         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtSizeofLCleanedupHandleCTicker,<span class="stringliteral">&quot;Size of LCleanedupPtr&lt;CTicker&gt; = %d\n&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1263
 
<a name="l01299"></a>01299         gConsole-&gt;Printf(KTxtSizeofLCleanedupHandleCTicker, <span class="keyword">sizeof</span>(LCleanedupPtr&lt;CTicker&gt;));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1264
 
<a name="l01300"></a>01300         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1265
 
<a name="l01301"></a>01301         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1266
 
<a name="l01302"></a>01302         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1267
 
<a name="l01303"></a>01303
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1268
 
<a name="l01304"></a>01304 TInt TestL()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1269
 
<a name="l01305"></a>01305         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1270
 
<a name="l01306"></a>01306         gConsole=Console::NewL(KTxtExample,TSize(KConsFullScreen,KConsFullScreen));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1271
 
<a name="l01307"></a>01307         CleanupStack::PushL(gConsole);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1272
 
<a name="l01308"></a>01308         gConsole-&gt;Printf(KTxtExample);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1273
 
<a name="l01309"></a>01309         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1274
 
<a name="l01310"></a>01310         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1275
 
<a name="l01311"></a>01311         WalkthroughStringsL();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1276
 
<a name="l01312"></a>01312         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1277
 
<a name="l01313"></a>01313         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1278
 
<a name="l01314"></a>01314         WalkthroughManagedL();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1279
 
<a name="l01315"></a>01315         gConsole-&gt;Printf(KTxtPressAnyKeyToContinue);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1280
 
<a name="l01316"></a>01316         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1281
 
<a name="l01317"></a>01317         WalkthroughUsageL();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1282
 
<a name="l01318"></a>01318         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPressAnyKeyToExit,<span class="stringliteral">&quot;\nPress any key to exit&quot;</span>);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1283
 
<a name="l01319"></a>01319         gConsole-&gt;Printf(KTxtPressAnyKeyToExit);
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1284
 
<a name="l01320"></a>01320         gConsole-&gt;Getch();
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1285
 
<a name="l01321"></a>01321         CleanupStack::PopAndDestroy(gConsole); <span class="comment">// delete the gConsole</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1286
 
<a name="l01322"></a>01322         <span class="keywordflow">return</span> KErrNone;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1287
 
<a name="l01323"></a>01323         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1288
 
<a name="l01324"></a>01324
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1289
 
<a name="l01325"></a>01325 TInt E32Main()
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1290
 
<a name="l01326"></a>01326         {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1291
 
<a name="l01327"></a>01327         __UHEAP_MARK;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1292
 
<a name="l01328"></a>01328         CTrapCleanup* cleanup=CTrapCleanup::New(); <span class="comment">// Create clean-up stack.</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1293
 
<a name="l01329"></a>01329         TInt status;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1294
 
<a name="l01330"></a>01330         <span class="keywordflow">if</span>(cleanup!=NULL)
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1295
 
<a name="l01331"></a>01331                 {
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1296
 
<a name="l01332"></a>01332             TRAP(status, TestL());
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1297
 
<a name="l01333"></a>01333                 __ASSERT_ALWAYS(!status,User::Panic(KTxtExample,status));
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1298
 
<a name="l01334"></a>01334                 }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1299
 
<a name="l01335"></a>01335         <span class="keyword">delete</span> cleanup; <span class="comment">// Delete clean-up stack.       </span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1300
 
<a name="l01336"></a>01336         __UHEAP_MARKEND;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1301
 
<a name="l01337"></a>01337
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1302
 
<a name="l01338"></a>01338         <span class="keywordflow">return</span> status;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1303
 
<a name="l01339"></a>01339         }
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1304
 
<a name="l01340"></a>01340
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1305
 
<a name="l01341"></a>01341
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1306
 
<a name="l01342"></a>01342 <span class="comment">// eof</span>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1307
 
</pre></div></div>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1308
 
<hr size="1"/><address style="text-align: right;"><small>Generated by&nbsp;
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1309
 
<a href="http://www.doxygen.org/index.html">
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1310
 
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1311
 
</body>
43e37759235e Week 12 contribution of example code"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
diff changeset 
  1312
 
</html>
MCL/sftools/depl/docscontent