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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_t_and_r_classes_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/Basics/TAndRClasses/TAndRClasses.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/Basics/TAndRClasses/TAndRClasses.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2000-2009 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">// TAndRClass.cpp</span>
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<a name="l00015"></a>00015 <span class="comment">//</span>
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<a name="l00016"></a>00016
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<a name="l00017"></a>00017 <span class="preprocessor">#include &quot;CommonFramework.h&quot;</span>
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<a name="l00018"></a>00018
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<a name="l00019"></a>00019 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtTIntHolderDestructor,<span class="stringliteral">&quot;TIntHolder destructor\n&quot;</span>);
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<a name="l00020"></a>00020 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KCommonFormat1,<span class="stringliteral">&quot;Int()=%d\n&quot;</span>);
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<a name="l00021"></a>00021
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<a name="l00022"></a>00022 <span class="comment">// T class</span>
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<a name="l00023"></a>00023
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<a name="l00024"></a>00024 <span class="keyword">class </span>TIntHolder
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<a name="l00025"></a>00025         {
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<a name="l00026"></a>00026 <span class="keyword">public</span>: <span class="comment">// data</span>
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<a name="l00027"></a>00027         TInt iInt;
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<a name="l00028"></a>00028 <span class="keyword">public</span>: <span class="comment">// functions</span>
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<a name="l00029"></a>00029         TInt Int() { <span class="keywordflow">return</span> iInt; }; <span class="comment">// get the integer</span>
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<a name="l00030"></a>00030         <span class="keywordtype">void</span> SetInt(TInt aInt) { iInt=aInt; }; <span class="comment">// set the integer</span>
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<a name="l00031"></a>00031         <span class="keywordtype">void</span> Double() { iInt *= 2; }; <span class="comment">// double the integer</span>
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<a name="l00032"></a>00032         TBool IsNonZero() { <span class="keywordflow">return</span> iInt!=0; }; <span class="comment">// check whether zero</span>
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<a name="l00033"></a>00033         <span class="comment">// destructor, coded only to show when taken and when not</span>
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<a name="l00034"></a>00034         ~TIntHolder() { console-&gt;Printf(KTxtTIntHolderDestructor); };
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<a name="l00035"></a>00035         };
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<a name="l00036"></a>00036
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<a name="l00037"></a>00037 <span class="keywordtype">void</span> demonstrateTTypeL(); <span class="comment">// function to demonstrate T type</span>
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<a name="l00038"></a>00038
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<a name="l00039"></a>00039 <span class="comment">// class RTimer - a typical R class</span>
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<a name="l00040"></a>00040
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<a name="l00041"></a>00041 <span class="comment">// an R class with added clean-up support</span>
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<a name="l00042"></a>00042
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<a name="l00043"></a>00043 <span class="keyword">class </span>RTimerWithCleanup : <span class="keyword">public</span> RTimer
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<a name="l00044"></a>00044         {
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<a name="l00045"></a>00045 <span class="keyword">public</span>: <span class="comment">// no extra data, just inherit everything from base</span>
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<a name="l00046"></a>00046 <span class="keyword">public</span>: <span class="comment">// functions</span>
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<a name="l00047"></a>00047         <span class="comment">// required for clean-up support</span>
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<a name="l00048"></a>00048         operator TCleanupItem()
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<a name="l00049"></a>00049                 { <span class="comment">// convert to clean-up item</span>
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<a name="l00050"></a>00050                 <span class="keywordflow">return</span> TCleanupItem(Cleanup,<span class="keyword">this</span>);
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<a name="l00051"></a>00051                                 <span class="comment">// clean-up = function + object</span>
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<a name="l00052"></a>00052                 }
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<a name="l00053"></a>00053         <span class="keyword">static</span> <span class="keywordtype">void</span> Cleanup(TAny *aPtr)
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<a name="l00054"></a>00054                 { <span class="comment">// static clean-up function returned by TCleanupItem</span>
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<a name="l00055"></a>00055                 ((RTimerWithCleanup*)aPtr) -&gt; DoCleanup();
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<a name="l00056"></a>00056                                 <span class="comment">// do clean-up neatly, using regular member function</span>
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<a name="l00057"></a>00057                 }
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<a name="l00058"></a>00058         <span class="keywordtype">void</span> DoCleanup()
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<a name="l00059"></a>00059                 { <span class="comment">// do clean-up neatly</span>
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<a name="l00060"></a>00060                 Close(); <span class="comment">// close timer</span>
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<a name="l00061"></a>00061                 }
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<a name="l00062"></a>00062         <span class="comment">// helpful for automatically putting onto clean-up stack</span>
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<a name="l00063"></a>00063         <span class="keywordtype">void</span> CreateLocalLC()
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<a name="l00064"></a>00064                 { <span class="comment">// call RTImer::CreateLocal(), and push to clean-up stack</span>
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<a name="l00065"></a>00065                 User::LeaveIfError(CreateLocal()); <span class="comment">// create, but leave if couldn&#39;t</span>
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<a name="l00066"></a>00066                 CleanupStack::PushL(*<span class="keyword">this</span>); <span class="comment">// push to clean-up stack</span>
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<a name="l00067"></a>00067                 }
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<a name="l00068"></a>00068         <span class="comment">// debug version of RTimer::Close()</span>
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<a name="l00069"></a>00069         <span class="keywordtype">void</span> Close()
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<a name="l00070"></a>00070                 { <span class="comment">// debug version of close</span>
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<a name="l00071"></a>00071                 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtClosingRTimer,<span class="stringliteral">&quot;Closing RTimerWithCleanup\n&quot;</span>);
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<a name="l00072"></a>00072                 console-&gt;Printf(KTxtClosingRTimer);
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<a name="l00073"></a>00073                 RTimer::Close(); <span class="comment">// base call</span>
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<a name="l00074"></a>00074                 }
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<a name="l00075"></a>00075         };
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<a name="l00076"></a>00076
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<a name="l00077"></a>00077 <span class="keywordtype">void</span> demonstrateRTypeL(); <span class="comment">// function to demonstrate R type</span>
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<a name="l00078"></a>00078
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<a name="l00079"></a>00079 <span class="comment">// Do the example</span>
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<a name="l00080"></a>00080 LOCAL_C <span class="keywordtype">void</span> doExampleL()
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<a name="l00081"></a>00081     {
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<a name="l00082"></a>00082         demonstrateTTypeL(); <span class="comment">// demonstrate T type</span>
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<a name="l00083"></a>00083         demonstrateRTypeL(); <span class="comment">// demonstrate R type</span>
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<a name="l00084"></a>00084         }
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<a name="l00085"></a>00085
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<a name="l00086"></a>00086 <span class="comment">// stuff to demonstrate T type</span>
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<a name="l00087"></a>00087
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<a name="l00088"></a>00088 <span class="keywordtype">void</span> useTTypeL(TIntHolder aIntHolder); <span class="comment">// function using a T</span>
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<a name="l00089"></a>00089
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<a name="l00090"></a>00090 <span class="keywordtype">void</span> demonstrateTTypeL()
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<a name="l00091"></a>00091         {
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<a name="l00092"></a>00092         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtStartingDemoTTypeL,<span class="stringliteral">&quot;Starting demonstrateTTypeL()\n&quot;</span>);
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<a name="l00093"></a>00093         console-&gt;Printf(KTxtStartingDemoTTypeL);
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<a name="l00094"></a>00094         TIntHolder t; <span class="comment">// declare variable</span>
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   105
 
<a name="l00095"></a>00095         <span class="comment">// do a few things with it</span>
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<a name="l00096"></a>00096         t.SetInt(3);
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<a name="l00097"></a>00097         t.Double();
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<a name="l00098"></a>00098         TInt i=t.Int();
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<a name="l00099"></a>00099         console-&gt;Printf(KCommonFormat1, i);
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<a name="l00100"></a>00100         <span class="comment">// optionally leave</span>
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<a name="l00101"></a>00101         <span class="comment">//</span>
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<a name="l00102"></a>00102         <span class="comment">// Remove comments on next line to show this</span>
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<a name="l00103"></a>00103         <span class="comment">//User::Leave(KErrGeneral);</span>
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<a name="l00104"></a>00104
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<a name="l00105"></a>00105         <span class="comment">// now use T type</span>
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<a name="l00106"></a>00106         useTTypeL(t); <span class="comment">// pass by value</span>
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<a name="l00107"></a>00107         <span class="comment">// end demo: T will be destructed (for what it&#39;s worth)</span>
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<a name="l00108"></a>00108         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtFinishingDemoTTypeL,<span class="stringliteral">&quot;Finishing demonstrateTTypeL()\n&quot;</span>);
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<a name="l00109"></a>00109         console-&gt;Printf(KTxtFinishingDemoTTypeL);
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<a name="l00110"></a>00110         }
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<a name="l00111"></a>00111
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<a name="l00112"></a>00112 <span class="keywordtype">void</span> useTTypeL(TIntHolder aIntHolder)
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<a name="l00113"></a>00113         { <span class="comment">// function using a T</span>
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<a name="l00114"></a>00114         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtStartinguseTTypeL,<span class="stringliteral">&quot;Starting useTTypeL()\n&quot;</span>);
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<a name="l00115"></a>00115         console-&gt;Printf(KTxtStartinguseTTypeL);
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<a name="l00116"></a>00116         aIntHolder.Double(); <span class="comment">// double the value</span>
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<a name="l00117"></a>00117         TInt i=aIntHolder.Int(); <span class="comment">// get value</span>
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<a name="l00118"></a>00118         console-&gt;Printf(KCommonFormat1, i);
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<a name="l00119"></a>00119         <span class="comment">// optionally leave</span>
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<a name="l00120"></a>00120         <span class="comment">//</span>
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<a name="l00121"></a>00121         <span class="comment">// Remove comments on next line to show this</span>
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<a name="l00122"></a>00122         <span class="comment">//User::Leave(KErrGeneral);</span>
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<a name="l00123"></a>00123
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<a name="l00124"></a>00124         <span class="comment">// now finished</span>
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<a name="l00125"></a>00125         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtFinishinguseTTypeL,<span class="stringliteral">&quot;Finishing useTTypeL()\n&quot;</span>);
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<a name="l00126"></a>00126         console-&gt;Printf(KTxtFinishinguseTTypeL);
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<a name="l00127"></a>00127         }
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<a name="l00128"></a>00128
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<a name="l00129"></a>00129 <span class="comment">// stuff to demonstrate R type</span>
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<a name="l00130"></a>00130
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<a name="l00131"></a>00131 <span class="keywordtype">void</span> useRTypeL(RTimerWithCleanup aTimer);
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<a name="l00132"></a>00132
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<a name="l00133"></a>00133 <span class="keywordtype">void</span> demonstrateRTypeL()
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<a name="l00134"></a>00134         {
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<a name="l00135"></a>00135         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtStartDemoRTypeL,<span class="stringliteral">&quot;Starting demonstrateRTypeL()\n&quot;</span>);
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<a name="l00136"></a>00136         console-&gt;Printf(KTxtStartDemoRTypeL);
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<a name="l00137"></a>00137         <span class="comment">// declare R type on the stack, and push to clean-up stack</span>
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<a name="l00138"></a>00138         RTimerWithCleanup timer; <span class="comment">// declare on stack</span>
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<a name="l00139"></a>00139         timer.CreateLocalLC(); <span class="comment">// initialize, push to clean-up stack</span>
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<a name="l00140"></a>00140         <span class="comment">// use the R type</span>
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<a name="l00141"></a>00141         TRequestStatus status; <span class="comment">// needed for asynchronous service</span>
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<a name="l00142"></a>00142         timer.After(status,1000000); <span class="comment">// request completion in 1,000,000 micro seconds</span>
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<a name="l00143"></a>00143         User::WaitForRequest(status); <span class="comment">// wait for completion</span>
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<a name="l00144"></a>00144         <span class="comment">// optionally leave</span>
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<a name="l00145"></a>00145         <span class="comment">//</span>
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<a name="l00146"></a>00146         <span class="comment">// Remove comments on next line to show this</span>
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<a name="l00147"></a>00147         <span class="comment">//User::Leave(KErrGeneral);</span>
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<a name="l00148"></a>00148
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<a name="l00149"></a>00149         <span class="comment">// pass to another function</span>
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<a name="l00150"></a>00150         useRTypeL(timer); <span class="comment">// use in another function</span>
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<a name="l00151"></a>00151         <span class="comment">// now finished</span>
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<a name="l00152"></a>00152         CleanupStack::PopAndDestroy(); <span class="comment">// pop and destroy timer</span>
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<a name="l00153"></a>00153         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtFinishDemoRTypeL,<span class="stringliteral">&quot;Finishing demonstrateRTypeL()\n&quot;</span>);
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<a name="l00154"></a>00154         console-&gt;Printf(KTxtFinishDemoRTypeL);
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<a name="l00155"></a>00155         }
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<a name="l00156"></a>00156
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<a name="l00157"></a>00157 <span class="keywordtype">void</span> useRTypeL(RTimerWithCleanup aTimer)
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<a name="l00158"></a>00158         { <span class="comment">// use an R type</span>
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<a name="l00159"></a>00159         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtStartuseRTypeL,<span class="stringliteral">&quot;Starting useRTypeL()\n&quot;</span>);
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<a name="l00160"></a>00160         console-&gt;Printf(KTxtStartuseRTypeL);
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<a name="l00161"></a>00161         <span class="comment">// use the R type</span>
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<a name="l00162"></a>00162         TRequestStatus status; <span class="comment">// needed for asynchronous service</span>
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<a name="l00163"></a>00163         aTimer.After(status,1000000); <span class="comment">// request completion in 1000000 micro seconds</span>
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<a name="l00164"></a>00164         User::WaitForRequest(status); <span class="comment">// wait for completion</span>
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<a name="l00165"></a>00165         <span class="comment">// optionally leave</span>
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<a name="l00166"></a>00166         <span class="comment">//</span>
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<a name="l00167"></a>00167         <span class="comment">// Remove comments on next line to show this</span>
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<a name="l00168"></a>00168         <span class="comment">//User::Leave(KErrGeneral);</span>
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<a name="l00169"></a>00169
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<a name="l00170"></a>00170         <span class="comment">// now finished</span>
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<a name="l00171"></a>00171         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtFinishuseRTypeL,<span class="stringliteral">&quot;Finishing useRTypeL()\n&quot;</span>);
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<a name="l00172"></a>00172         console-&gt;Printf(KTxtFinishuseRTypeL);
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<a name="l00173"></a>00173         }
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</pre></div></div>
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<hr size="1"/><address style="text-align: right;"><small>Generated by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
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</body>
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</html>
MCL/sftools/depl/docscontent