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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_semaphore_example_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/Base/SemaphoreExample/src/SemaphoreExample.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/Base/SemaphoreExample/src/SemaphoreExample.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">// Contains the E32Main() function, which executes the example. The macro USE_SEMAPHORE is used at various</span>
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<a name="l00015"></a>00015 <span class="comment">// places to show synchronization mechanism using semaphores.</span>
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<a name="l00016"></a>00016
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<a name="l00017"></a>00017
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<a name="l00018"></a>00018 <span class="preprocessor">#include &quot;SemaphoreExample.h&quot;</span>
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<a name="l00019"></a>00019
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<a name="l00023"></a><a class="code" href="class_c_semaphore_example.html#aa1bde5ce9ac1befd3249c4ea56a2d214">00023</a> <a class="code" href="class_c_semaphore_example.html#aa1bde5ce9ac1befd3249c4ea56a2d214">CSemaphoreExample::~CSemaphoreExample</a>()
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<a name="l00024"></a>00024     {
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<a name="l00025"></a>00025     iReadThread.Close();<span class="comment">//Reader thread closed. </span>
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<a name="l00026"></a>00026     iWriteThread.Close();<span class="comment">//Writer thread closed. </span>
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<a name="l00027"></a>00027     <span class="keyword">delete</span> iConsole;
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<a name="l00028"></a>00028     }
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<a name="l00029"></a>00029
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<a name="l00033"></a><a class="code" href="class_c_semaphore_example.html#a12ed690de78daccf113004ba4ba02f42">00033</a> <a class="code" href="class_c_semaphore_example.html">CSemaphoreExample</a>* <a class="code" href="class_c_semaphore_example.html#a12ed690de78daccf113004ba4ba02f42">CSemaphoreExample::NewL</a>()
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<a name="l00034"></a>00034     {
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<a name="l00035"></a>00035     <a class="code" href="class_c_semaphore_example.html">CSemaphoreExample</a>* <span class="keyword">self</span>=<span class="keyword">new</span>(ELeave)<a class="code" href="class_c_semaphore_example.html">CSemaphoreExample</a>();
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<a name="l00036"></a>00036     CleanupStack::PushL(<span class="keyword">self</span>);
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<a name="l00037"></a>00037     <span class="keyword">self</span>-&gt;ConstructL();
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<a name="l00038"></a>00038     CleanupStack::Pop(<span class="keyword">self</span>);
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<a name="l00039"></a>00039     <span class="keywordflow">return</span> <span class="keyword">self</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="l00046"></a><a class="code" href="class_c_semaphore_example.html#a206ff3d040178008062e201ecf67577f">00046</a> <span class="keywordtype">void</span> <a class="code" href="class_c_semaphore_example.html#a206ff3d040178008062e201ecf67577f">CSemaphoreExample::ConstructL</a>()
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<a name="l00047"></a>00047     {
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<a name="l00048"></a>00048     <span class="comment">//Create a reader thread to read the database.</span>
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<a name="l00049"></a>00049     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KReader,<span class="stringliteral">&quot;ReaderThread&quot;</span>);
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<a name="l00050"></a>00050     User::LeaveIfError(iReadThread.Create(KReader,<a class="code" href="class_c_semaphore_example.html#a9a32bdc9ccf1e50c38b4accb4d7dfa56">ReadThreadFuncL</a>,KDefaultStackSize,KMinHeapSize,256*KMinHeapSize,<span class="keyword">this</span>,EOwnerProcess));
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<a name="l00051"></a>00051
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<a name="l00052"></a>00052     <span class="comment">//Create a writer thread to write into the database. </span>
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<a name="l00053"></a>00053     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KWriter,<span class="stringliteral">&quot;WriterThread&quot;</span>);
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<a name="l00054"></a>00054     User::LeaveIfError(iWriteThread.Create(KWriter,<a class="code" href="class_c_semaphore_example.html#a38d9e05692b6122e501d04a4c481bdeb">WriteThreadFuncL</a>,KDefaultStackSize,KMinHeapSize,256*KMinHeapSize,<span class="keyword">this</span>,EOwnerProcess));
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<a name="l00055"></a>00055
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<a name="l00056"></a>00056     <span class="comment">//Sets the priorities of the threads when not using a semaphore, but this is not a good practice to achieve serialized execution; the preferred way</span>
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<a name="l00057"></a>00057     <span class="comment">//should be using semaphores. If USE_SEMAPHORE is used, create a global semaphore. </span>
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<a name="l00058"></a>00058 <span class="preprocessor">    #ifndef USE_SEMAPHORE</span>
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<a name="l00059"></a>00059 <span class="preprocessor"></span>    iWriteThread.SetPriority(EPriorityMore);
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<a name="l00060"></a>00060     iReadThread.SetPriority(EPriorityLess);
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<a name="l00061"></a>00061 <span class="preprocessor">    #else</span>
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<a name="l00062"></a>00062 <span class="preprocessor"></span>    <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSemaphoreWrite, <span class="stringliteral">&quot;WriteSemaphore&quot;</span>);
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<a name="l00063"></a>00063     User::LeaveIfError(iSem.CreateGlobal(KSemaphoreWrite, 0, EOwnerProcess));
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<a name="l00064"></a>00064 <span class="preprocessor">    #endif</span>
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<a name="l00065"></a>00065 <span class="preprocessor"></span>    }
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<a name="l00066"></a>00066
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<a name="l00070"></a><a class="code" href="class_c_semaphore_example.html#a518cb178a863033b0eb4899035802924">00070</a> <span class="keywordtype">void</span> <a class="code" href="class_c_semaphore_example.html#a518cb178a863033b0eb4899035802924">CSemaphoreExample::StartThreads</a>()
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<a name="l00071"></a>00071     {
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<a name="l00072"></a>00072     TRequestStatus status1, status2;
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<a name="l00073"></a>00073
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<a name="l00074"></a>00074     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPressKey, <span class="stringliteral">&quot;\nPress any key to start writing to and reading from the database.\n&quot;</span>);
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<a name="l00075"></a>00075     iConsole-&gt;Printf(KPressKey);
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<a name="l00076"></a>00076     iConsole-&gt;Getch();
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<a name="l00077"></a>00077     <span class="comment">//Request a notification for iReadThread to terminate. </span>
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<a name="l00078"></a>00078     iReadThread.Logon(status2);
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<a name="l00079"></a>00079     iReadThread.Resume();
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<a name="l00080"></a>00080
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<a name="l00081"></a>00081     <span class="comment">//Request a notification for iWriteThread to terminate. </span>
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<a name="l00082"></a>00082     iWriteThread.Logon(status1);
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<a name="l00083"></a>00083     iWriteThread.Resume();
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<a name="l00084"></a>00084
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<a name="l00085"></a>00085     <span class="comment">//Control returns to the main thread when the two threads terminate. </span>
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<a name="l00086"></a>00086     User::WaitForRequest(status1);
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<a name="l00087"></a>00087     User::WaitForRequest(status2);
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<a name="l00088"></a>00088     }
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<a name="l00089"></a>00089
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<a name="l00090"></a>00090 <span class="keywordtype">void</span> CSemaphoreExample::PrintMessage()
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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>(KTextConsoleTitle, <span class="stringliteral">&quot;SemaphoreExample&quot;</span>);
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<a name="l00093"></a>00093     iConsole = <a class="code" href="class_c_semaphore_example.html#a12ed690de78daccf113004ba4ba02f42">Console::NewL</a>(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen));
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<a name="l00094"></a>00094     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KWelcome, <span class="stringliteral">&quot;Welcome to the SemaphoreExample.\n&quot;</span>);
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<a name="l00095"></a>00095
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<a name="l00096"></a>00096     iConsole-&gt;Printf(KWelcome);
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    94
 
<a name="l00097"></a>00097 <span class="preprocessor">    #ifdef USE_SEMAPHORE </span>
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    95
 
<a name="l00098"></a>00098 <span class="preprocessor"></span>    <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSemDefined, <span class="stringliteral">&quot;The USE_SEMAPHORE macro is defined.\n&quot;</span>);
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    96
 
<a name="l00099"></a>00099     iConsole-&gt;Printf(KSemDefined);
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    97
 
<a name="l00100"></a>00100 <span class="preprocessor">    #else  </span>
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    98
 
<a name="l00101"></a>00101 <span class="preprocessor"></span>    <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSemUnDefined, <span class="stringliteral">&quot;The USE_SEMAPHORE macro is undefined.\n&quot;</span>);
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    99
 
<a name="l00102"></a>00102     iConsole-&gt;Printf(KSemUnDefined);
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   100
 
<a name="l00103"></a>00103 <span class="preprocessor">    #endif</span>
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   101
 
<a name="l00104"></a>00104 <span class="preprocessor"></span>
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   102
 
<a name="l00105"></a>00105     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPurposel1, <span class="stringliteral">&quot;There are two threads running in the example: WriterThread calls a periodic function\n&quot;</span>);
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<a name="l00106"></a>00106     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPurposel2, <span class="stringliteral">&quot;which adds rows of integers to a database at an interval of 1 second.\n&quot;</span>);
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   104
 
<a name="l00107"></a>00107
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   105
 
<a name="l00108"></a>00108     iConsole-&gt;Printf(KPurposel1);
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   106
 
<a name="l00109"></a>00109     iConsole-&gt;Printf(KPurposel2);
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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="preprocessor">    #ifdef USE_SEMAPHORE  </span>
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<a name="l00113"></a>00113 <span class="preprocessor"></span>
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<a name="l00114"></a>00114     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPurposel4, <span class="stringliteral">&quot;ReaderThread waits for the WriterThread to complete inserting one row of integers\n&quot;</span>);
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<a name="l00115"></a>00115     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPurposel5, <span class="stringliteral">&quot;and then reads the data just written.\n&quot;</span>);
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<a name="l00116"></a>00116
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   114
 
<a name="l00117"></a>00117     iConsole-&gt;Printf(KPurposel4);
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   115
 
<a name="l00118"></a>00118     iConsole-&gt;Printf(KPurposel5);
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<a name="l00119"></a>00119 <span class="preprocessor">    #else   </span>
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   117
 
<a name="l00120"></a>00120 <span class="preprocessor"></span>    <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPurposel31, <span class="stringliteral">&quot;ReaderThread also calls a periodic function to read each row of integers\n&quot;</span>);
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<a name="l00121"></a>00121     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPurposel32, <span class="stringliteral">&quot;and displays them in the console.\n&quot;</span>);
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<a name="l00122"></a>00122     iConsole-&gt;Printf(KPurposel31);
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   120
 
<a name="l00123"></a>00123     iConsole-&gt;Printf(KPurposel32);
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   121
 
<a name="l00124"></a>00124 <span class="preprocessor">    #endif</span>
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<a name="l00125"></a>00125 <span class="preprocessor"></span>
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<a name="l00126"></a>00126 <span class="preprocessor">    #ifdef USE_SEMAPHORE  </span>
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<a name="l00127"></a>00127 <span class="preprocessor"></span>    <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSemaphoreNote, <span class="stringliteral">&quot;RSemaphore is used to synchronize the two threads.\n&quot;</span>);
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<a name="l00128"></a>00128     iConsole-&gt;Printf(KSemaphoreNote);
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<a name="l00129"></a>00129 <span class="preprocessor">    #else</span>
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<a name="l00130"></a>00130 <span class="preprocessor"></span>    <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KNoSemaphoreNotel, <span class="stringliteral">&quot;This implementation does not use Semaphores, instead it uses thread priorities and doesn&#39;t\n&quot;</span>);
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<a name="l00131"></a>00131     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KNoSemaphoreNote2, <span class="stringliteral">&quot;guarantee correct thread synchronization.\n&quot;</span>);
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<a name="l00132"></a>00132     iConsole-&gt;Printf(KNoSemaphoreNotel);
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<a name="l00133"></a>00133     iConsole-&gt;Printf(KNoSemaphoreNote2);
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<a name="l00134"></a>00134 <span class="preprocessor">    #endif</span>
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<a name="l00135"></a>00135 <span class="preprocessor"></span>    }
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<a name="l00136"></a>00136
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<a name="l00141"></a>00141 <span class="keyword">static</span> <span class="keywordtype">void</span> ReadDbFuncL()
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<a name="l00142"></a>00142     {
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<a name="l00143"></a>00143     CActiveScheduler* scheduler = <span class="keyword">new</span> (ELeave) CActiveScheduler();
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<a name="l00144"></a>00144     CleanupStack::PushL(scheduler);
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<a name="l00145"></a>00145     CActiveScheduler::Install(scheduler);
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<a name="l00146"></a>00146
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<a name="l00147"></a>00147     <a class="code" href="class_c_database.html">CDatabase</a>* db = <a class="code" href="class_c_database.html#aab355b9be127debd7a5d54e5ac8f9021">CDatabase::NewL</a>();
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<a name="l00148"></a>00148     CleanupStack::PushL(db);
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<a name="l00149"></a>00149
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<a name="l00150"></a>00150     <span class="comment">//Start reading the database. </span>
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<a name="l00151"></a>00151     db-&gt;<a class="code" href="class_c_database.html#ae9fea33b26bf2ba7cdad59361ee45221">ReadfromDatabaseL</a>();
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<a name="l00152"></a>00152
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<a name="l00153"></a>00153     CleanupStack::PopAndDestroy(db);
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<a name="l00154"></a>00154     CleanupStack::PopAndDestroy(scheduler);
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<a name="l00155"></a>00155     }
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<a name="l00156"></a>00156
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<a name="l00161"></a><a class="code" href="class_c_semaphore_example.html#a9a32bdc9ccf1e50c38b4accb4d7dfa56">00161</a> TInt <a class="code" href="class_c_semaphore_example.html#a9a32bdc9ccf1e50c38b4accb4d7dfa56">CSemaphoreExample::ReadThreadFuncL</a>(TAny* <span class="comment">/*aPtr*/</span>)
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<a name="l00162"></a>00162     {
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<a name="l00163"></a>00163     __UHEAP_MARK;
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<a name="l00164"></a>00164     <span class="comment">//Create cleanup stack.</span>
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<a name="l00165"></a>00165     CTrapCleanup* cleanup = CTrapCleanup::New();
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   155
 
<a name="l00166"></a>00166     <span class="keywordflow">if</span>(!cleanup)
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<a name="l00167"></a>00167         {
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<a name="l00168"></a>00168         <span class="keywordflow">return</span> KErrNoMemory;
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<a name="l00169"></a>00169         }
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<a name="l00170"></a>00170
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<a name="l00171"></a>00171     TRAPD(error, ReadDbFuncL());
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<a name="l00172"></a>00172     <span class="keywordflow">if</span>(error != KErrNone)
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<a name="l00173"></a>00173         {
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<a name="l00174"></a>00174         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KUserPanic,<span class="stringliteral">&quot;Failed&quot;</span>);
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<a name="l00175"></a>00175         User::Panic(KUserPanic, error);
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<a name="l00176"></a>00176         }
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<a name="l00177"></a>00177     <span class="keyword">delete</span> cleanup;
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<a name="l00178"></a>00178     __UHEAP_MARKEND;
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<a name="l00179"></a>00179     <span class="keywordflow">return</span> KErrNone;
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<a name="l00180"></a>00180     }
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<a name="l00181"></a>00181
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<a name="l00186"></a>00186 <span class="keyword">static</span> <span class="keywordtype">void</span> WriteDbFuncL()
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<a name="l00187"></a>00187     {
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<a name="l00188"></a>00188     CActiveScheduler* scheduler = <span class="keyword">new</span> (ELeave) CActiveScheduler();
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<a name="l00189"></a>00189     CleanupStack::PushL(scheduler);
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<a name="l00190"></a>00190     CActiveScheduler::Install(scheduler);
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<a name="l00191"></a>00191
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<a name="l00192"></a>00192     <a class="code" href="class_c_database.html">CDatabase</a>* db = <a class="code" href="class_c_database.html#aab355b9be127debd7a5d54e5ac8f9021">CDatabase::NewL</a>();
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<a name="l00193"></a>00193     CleanupStack::PushL(db);
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<a name="l00194"></a>00194     <span class="comment">//Create a database.</span>
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<a name="l00195"></a>00195     db-&gt;<a class="code" href="class_c_database.html#a89047671e6c027e4551a8b7a276add96">CreateDatabaseL</a>();
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<a name="l00196"></a>00196
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<a name="l00197"></a>00197     <span class="comment">//Write into the database. </span>
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<a name="l00198"></a>00198     db-&gt;<a class="code" href="class_c_database.html#a5df7d7393cfb36c850d562df4f35a0f6">WritetoDatabaseL</a>();
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<a name="l00199"></a>00199
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<a name="l00200"></a>00200     CleanupStack::PopAndDestroy(db);
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<a name="l00201"></a>00201     CleanupStack::PopAndDestroy(scheduler);
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<a name="l00202"></a>00202     }
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<a name="l00203"></a>00203
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<a name="l00208"></a><a class="code" href="class_c_semaphore_example.html#a38d9e05692b6122e501d04a4c481bdeb">00208</a> TInt <a class="code" href="class_c_semaphore_example.html#a38d9e05692b6122e501d04a4c481bdeb">CSemaphoreExample::WriteThreadFuncL</a>(TAny* <span class="comment">/*aPtr*/</span>)
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<a name="l00209"></a>00209     {
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<a name="l00210"></a>00210     __UHEAP_MARK;
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<a name="l00211"></a>00211     <span class="comment">//Create cleanup stack.</span>
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<a name="l00212"></a>00212     CTrapCleanup* cleanup = CTrapCleanup::New();
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<a name="l00213"></a>00213     <span class="keywordflow">if</span>(!cleanup)
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<a name="l00214"></a>00214         {
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<a name="l00215"></a>00215         <span class="keywordflow">return</span> KErrNoMemory;
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<a name="l00216"></a>00216         }
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<a name="l00217"></a>00217
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<a name="l00218"></a>00218     TRAPD(err, WriteDbFuncL());
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<a name="l00219"></a>00219     <span class="keywordflow">if</span>(err != KErrNone)
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<a name="l00220"></a>00220         {
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<a name="l00221"></a>00221         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KUserPanic,<span class="stringliteral">&quot;Failed&quot;</span>);
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<a name="l00222"></a>00222         User::Panic(KUserPanic, err);
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<a name="l00223"></a>00223         }
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<a name="l00224"></a>00224     <span class="keyword">delete</span> cleanup;
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<a name="l00225"></a>00225     __UHEAP_MARKEND;
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<a name="l00226"></a>00226     <span class="keywordflow">return</span> KErrNone;
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<a name="l00227"></a>00227     }
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<a name="l00228"></a>00228
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<a name="l00232"></a>00232 <span class="keyword">static</span> <span class="keywordtype">void</span> MainL()
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<a name="l00233"></a>00233     {
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<a name="l00234"></a>00234     <a class="code" href="class_c_semaphore_example.html">CSemaphoreExample</a>* semExample = <a class="code" href="class_c_semaphore_example.html#a12ed690de78daccf113004ba4ba02f42">CSemaphoreExample::NewL</a>();
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<a name="l00235"></a>00235     CleanupStack::PushL(semExample);
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<a name="l00236"></a>00236     semExample-&gt;PrintMessage();
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<a name="l00237"></a>00237     semExample-&gt;<a class="code" href="class_c_semaphore_example.html#a518cb178a863033b0eb4899035802924">StartThreads</a>();
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<a name="l00238"></a>00238     CleanupStack::PopAndDestroy(semExample);
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<a name="l00239"></a>00239     }
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<a name="l00240"></a>00240
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<a name="l00244"></a>00244 <span class="keyword">extern</span> TInt E32Main()
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<a name="l00245"></a>00245     {
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<a name="l00246"></a>00246     <span class="comment">//Create cleanup stack.</span>
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<a name="l00247"></a>00247     __UHEAP_MARK;
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<a name="l00248"></a>00248     CTrapCleanup* cleanup = CTrapCleanup::New();
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<a name="l00249"></a>00249     <span class="keywordflow">if</span>(!cleanup)
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<a name="l00250"></a>00250         {
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<a name="l00251"></a>00251         <span class="keywordflow">return</span> KErrNoMemory;
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<a name="l00252"></a>00252         }
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<a name="l00253"></a>00253     <span class="comment">//Run application code inside a TRAP harness.</span>
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<a name="l00254"></a>00254     TRAPD(mainError, MainL());
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<a name="l00255"></a>00255     <span class="keywordflow">if</span>(mainError != KErrNone)
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<a name="l00256"></a>00256         {
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<a name="l00257"></a>00257         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KUserPanic,<span class="stringliteral">&quot;Failed&quot;</span>);
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<a name="l00258"></a>00258         User::Panic(KUserPanic, mainError);
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<a name="l00259"></a>00259         }
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<a name="l00260"></a>00260     <span class="keyword">delete</span> cleanup;
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<a name="l00261"></a>00261     __UHEAP_MARKEND;
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<a name="l00262"></a>00262     <span class="keywordflow">return</span> KErrNone;
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<a name="l00263"></a>00263     }
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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>
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