Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/threadaoengine_8cpp_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
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Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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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/ForumNokia/ThreadAndActiveObjectsEx/src/threadaoengine.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/ForumNokia/ThreadAndActiveObjectsEx/src/threadaoengine.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment"> * Copyright © 2008 Nokia Corporation.</span>
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<a name="l00003"></a>00003 <span class="comment"> */</span>
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<a name="l00004"></a>00004 
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<a name="l00006"></a>00006 <span class="comment">// INCLUDES</span>
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<a name="l00007"></a>00007 <span class="preprocessor">#include &lt;e32base.h&gt;</span> 
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<a name="l00008"></a>00008 <span class="preprocessor">#include &lt;aknnotewrappers.h&gt;</span>
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<a name="l00010"></a>00010 <span class="preprocessor">#include &quot;..\inc\threadaoengine.h&quot;</span>
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<a name="l00011"></a>00011 <span class="preprocessor">#include &quot;SharedIntermediator.h&quot;</span>
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<a name="l00012"></a>00012 <span class="preprocessor">#include &quot;BluetoothRefreshTimer.h&quot;</span>
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<a name="l00013"></a>00013 <span class="preprocessor">#include &quot;Devicelistcontainer.h&quot;</span>
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<a name="l00014"></a>00014 
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<a name="l00015"></a>00015 <span class="comment">// CONSTANTS</span>
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<a name="l00016"></a>00016 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>( KThreadOneName, <span class="stringliteral">&quot;thread1&quot;</span> );
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<a name="l00017"></a>00017 <span class="keyword">const</span> TInt KStackSize = 4096;
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<a name="l00018"></a>00018 
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<a name="l00019"></a>00019 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00020"></a>00020 <span class="comment">// CThreadAOEngine::CThreadAOEngine(CSharedIntermediator* aSMediator)</span>
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<a name="l00021"></a>00021 <span class="comment">//</span>
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<a name="l00022"></a>00022 <span class="comment">// Constructor.</span>
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<a name="l00023"></a>00023 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00024"></a>00024 CThreadAOEngine::CThreadAOEngine( <a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>* aSMediator ) :
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<a name="l00025"></a>00025     iCreatedThreads(EFalse), 
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<a name="l00026"></a>00026     iSMediator(aSMediator), iListener(0)
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<a name="l00027"></a>00027         {
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<a name="l00028"></a>00028         }
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<a name="l00029"></a>00029 
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<a name="l00030"></a>00030 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00031"></a>00031 <span class="comment">// CThreadAOEngine::~CThreadAOEngine()</span>
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<a name="l00032"></a>00032 <span class="comment">//</span>
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<a name="l00033"></a>00033 <span class="comment">// Destructor.</span>
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<a name="l00034"></a>00034 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00035"></a><a class="code" href="class_c_thread_a_o_engine.html#a74d5ebd45dff44ee13467a48ab9ad46c">00035</a> <a class="code" href="class_c_thread_a_o_engine.html#a74d5ebd45dff44ee13467a48ab9ad46c">CThreadAOEngine::~CThreadAOEngine</a>()
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<a name="l00036"></a>00036         {
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<a name="l00037"></a>00037     <span class="comment">// Thread should be killed allready, if thread is already killed this does</span>
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<a name="l00038"></a>00038     <span class="comment">// nothing</span>
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<a name="l00039"></a>00039         iThreadOne.Kill(KErrNone);
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<a name="l00040"></a>00040         <span class="comment">// Handles should be closed</span>
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<a name="l00041"></a>00041         iThreadOne.Close();
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<a name="l00042"></a>00042 
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<a name="l00043"></a>00043         <span class="keyword">delete</span> iListener;
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<a name="l00044"></a>00044         }
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<a name="l00045"></a>00045 
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<a name="l00046"></a><a class="code" href="class_c_thread_a_o_engine.html#ae47fec51f868c97d25af41502cedb93c">00046</a> <a class="code" href="class_c_thread_a_o_engine.html">CThreadAOEngine</a>* <a class="code" href="class_c_thread_a_o_engine.html#ae47fec51f868c97d25af41502cedb93c">CThreadAOEngine::NewL</a>(<a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>* aSMediator)
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<a name="l00047"></a>00047         {
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<a name="l00048"></a>00048         <a class="code" href="class_c_thread_a_o_engine.html">CThreadAOEngine</a>* <span class="keyword">self</span> = <a class="code" href="class_c_thread_a_o_engine.html#af60ccf499b44adb966152a3b970309a1">CThreadAOEngine::NewLC</a>(aSMediator);
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<a name="l00049"></a>00049         CleanupStack::Pop(<span class="keyword">self</span>);
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<a name="l00050"></a>00050         <span class="keywordflow">return</span> <span class="keyword">self</span>;
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<a name="l00051"></a>00051         }
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<a name="l00052"></a>00052 
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<a name="l00053"></a><a class="code" href="class_c_thread_a_o_engine.html#af60ccf499b44adb966152a3b970309a1">00053</a> <a class="code" href="class_c_thread_a_o_engine.html">CThreadAOEngine</a>* <a class="code" href="class_c_thread_a_o_engine.html#af60ccf499b44adb966152a3b970309a1">CThreadAOEngine::NewLC</a>(<a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>* aSMediator)
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<a name="l00054"></a>00054         {
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<a name="l00055"></a>00055         <a class="code" href="class_c_thread_a_o_engine.html">CThreadAOEngine</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_thread_a_o_engine.html">CThreadAOEngine</a>(aSMediator);
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<a name="l00056"></a>00056         CleanupStack::PushL(<span class="keyword">self</span>);
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<a name="l00057"></a>00057         <span class="keyword">self</span>-&gt;ConstructL();
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<a name="l00058"></a>00058         <span class="keywordflow">return</span> <span class="keyword">self</span>;
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<a name="l00059"></a>00059         }
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<a name="l00060"></a>00060 
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<a name="l00061"></a>00061 <span class="comment">// Standard Symbian OS 2nd phase constructor</span>
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<a name="l00062"></a>00062 <span class="keywordtype">void</span> CThreadAOEngine::ConstructL()
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<a name="l00063"></a>00063         {
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<a name="l00064"></a>00064         }
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<a name="l00065"></a>00065 
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<a name="l00066"></a>00066 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00067"></a>00067 <span class="comment">// CThreadAOEngine::StartL()</span>
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<a name="l00068"></a>00068 <span class="comment">//</span>
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<a name="l00069"></a>00069 <span class="comment">// Create a new thread (= thread1).</span>
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<a name="l00070"></a>00070 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00071"></a><a class="code" href="class_c_thread_a_o_engine.html#ac6e884d9c4dec96288fa725385924382">00071</a> <span class="keywordtype">void</span> <a class="code" href="class_c_thread_a_o_engine.html#ac6e884d9c4dec96288fa725385924382">CThreadAOEngine::StartL</a>()
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<a name="l00072"></a>00072         {
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<a name="l00073"></a>00073         
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<a name="l00074"></a>00074         <span class="comment">// Create threads only once</span>
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<a name="l00075"></a>00075         <span class="keywordflow">if</span> ( iCreatedThreads == <span class="keyword">false</span> )
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<a name="l00076"></a>00076                 {
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<a name="l00077"></a>00077                 CreateThreadsL();
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<a name="l00078"></a>00078                 }
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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">// ----------------------------------------------------------------------------</span>
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<a name="l00082"></a>00082 <span class="comment">// CThreadAOEngine::Stop()</span>
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<a name="l00083"></a>00083 <span class="comment">//</span>
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<a name="l00084"></a>00084 <span class="comment">// Stop thread1. Stop thread1 ActiveScheduler.</span>
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<a name="l00085"></a>00085 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00086"></a><a class="code" href="class_c_thread_a_o_engine.html#a5fce7387851b38d1e5ae0b295511909f">00086</a> <span class="keywordtype">void</span> <a class="code" href="class_c_thread_a_o_engine.html#a5fce7387851b38d1e5ae0b295511909f">CThreadAOEngine::Stop</a>()
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<a name="l00087"></a>00087         {
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<a name="l00088"></a>00088         <span class="comment">// Notify that the BT search should be cancelled.</span>
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<a name="l00089"></a>00089         iSMediator-&gt;<a class="code" href="class_c_shared_intermediator.html#a90e24ea996df35031bcee2bd575abbcb">SetStopSearching</a>(ETrue);
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<a name="l00090"></a>00090         }
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<a name="l00091"></a>00091 
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<a name="l00092"></a>00092 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00093"></a>00093 <span class="comment">// CThreadAOEngine::ExecuteThread(TAny *aPtr)</span>
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<a name="l00094"></a>00094 <span class="comment">//</span>
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<a name="l00095"></a>00095 <span class="comment">// Threadfunction of threadOne. Executed only by threadOne.</span>
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<a name="l00096"></a>00096 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00097"></a><a class="code" href="class_c_thread_a_o_engine.html#a466c0b37441e2a42ad7d4d237f543f37">00097</a> TInt <a class="code" href="class_c_thread_a_o_engine.html#a466c0b37441e2a42ad7d4d237f543f37">CThreadAOEngine::ExecuteThreadOne</a>(TAny *aPtr)
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<a name="l00098"></a>00098         {
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<a name="l00099"></a>00099         <a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>* sharedMediator = 
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<a name="l00100"></a>00100                              <span class="keyword">static_cast&lt;</span><a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>*<span class="keyword">&gt;</span>( aPtr );
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<a name="l00101"></a>00101         
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<a name="l00102"></a>00102         <span class="comment">// Create cleanupstack  </span>
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<a name="l00103"></a>00103         CTrapCleanup* cleanupStack = CTrapCleanup::New();
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<a name="l00104"></a>00104 
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<a name="l00105"></a>00105         <span class="comment">// Test cleanup stack, additional cleanup stack must be prosessed under TRAP</span>
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<a name="l00106"></a>00106         <span class="comment">// We can&#39;t use low level cleanup stack handling</span>
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<a name="l00107"></a>00107         TRAPD( error, <a class="code" href="class_c_thread_a_o_engine.html#aa3a782d96f8123de748ed4a95d652db8">CThreadAOEngine::CreateActiveSchedulerL</a>( sharedMediator ) )
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<a name="l00108"></a>00108 
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<a name="l00109"></a>00109         <span class="keyword">delete</span> cleanupStack;
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<a name="l00110"></a>00110         
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<a name="l00111"></a>00111         <span class="keywordflow">return</span> 0;
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<a name="l00112"></a>00112         }
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<a name="l00113"></a>00113 
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<a name="l00114"></a>00114 
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<a name="l00115"></a>00115 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00116"></a>00116 <span class="comment">// CThreadAOEngine::CreateActiveScheduler(CSharedIntermediator* aSMediator)</span>
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<a name="l00117"></a>00117 <span class="comment">//</span>
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<a name="l00118"></a>00118 <span class="comment">// Create ActiveScheduler for thread1.</span>
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<a name="l00119"></a>00119 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00120"></a><a class="code" href="class_c_thread_a_o_engine.html#aa3a782d96f8123de748ed4a95d652db8">00120</a> <span class="keywordtype">void</span> <a class="code" href="class_c_thread_a_o_engine.html#aa3a782d96f8123de748ed4a95d652db8">CThreadAOEngine::CreateActiveSchedulerL</a>(<a class="code" href="class_c_shared_intermediator.html">CSharedIntermediator</a>* aSMediator)
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<a name="l00121"></a>00121         {
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<a name="l00122"></a>00122         <span class="comment">// create a new active scheduler</span>
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<a name="l00123"></a>00123         CActiveScheduler* activeScheduler = <span class="keyword">new</span> (ELeave) CActiveScheduler;
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<a name="l00124"></a>00124         CleanupStack::PushL(activeScheduler);
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<a name="l00125"></a>00125 
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<a name="l00126"></a>00126         <span class="comment">// use static function Install to install previously created scheduler</span>
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<a name="l00127"></a>00127         CActiveScheduler::Install(activeScheduler);
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<a name="l00128"></a>00128 
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<a name="l00129"></a>00129         CActiveSchedulerWait* wait = <span class="keyword">new</span> (ELeave) CActiveSchedulerWait;
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<a name="l00130"></a>00130         CleanupStack::PushL(wait);
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<a name="l00131"></a>00131         
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<a name="l00132"></a>00132         <a class="code" href="class_c_bluetooth_refresh_timer.html">CBluetoothRefreshTimer</a>* timer = <a class="code" href="class_c_thread_a_o_engine.html#ae47fec51f868c97d25af41502cedb93c">CBluetoothRefreshTimer::NewL</a>(
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<a name="l00133"></a>00133                                                          aSMediator, wait );
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<a name="l00134"></a>00134         CleanupStack::PushL(timer);
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<a name="l00135"></a>00135 
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<a name="l00136"></a>00136         CActiveScheduler::Add(timer);
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<a name="l00137"></a>00137 
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<a name="l00138"></a>00138         <span class="comment">// Scheduler must have one outstanding request before it can be started.</span>
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<a name="l00139"></a>00139         timer-&gt;<a class="code" href="class_c_bluetooth_refresh_timer.html#a8f2c8cdde49f04754b4ed693228da3e0">StartL</a>();
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<a name="l00140"></a>00140         wait-&gt;Start();  
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<a name="l00141"></a>00141 
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<a name="l00142"></a>00142     <span class="comment">// Remove and delete scheduler and the rest.</span>
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<a name="l00143"></a>00143         CleanupStack::PopAndDestroy(3);
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<a name="l00144"></a>00144         }
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<a name="l00145"></a>00145 
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<a name="l00146"></a>00146 
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<a name="l00147"></a>00147 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00148"></a>00148 <span class="comment">// CThreadAOEngine::CreateThreadsL()</span>
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<a name="l00149"></a>00149 <span class="comment">//</span>
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<a name="l00150"></a>00150 <span class="comment">// Create thread1 and resume it. Activate thread1 listener.</span>
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<a name="l00151"></a>00151 <span class="comment">// ----------------------------------------------------------------------------</span>
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<a name="l00152"></a>00152 <span class="keywordtype">void</span> CThreadAOEngine::CreateThreadsL()
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<a name="l00153"></a>00153         {
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<a name="l00154"></a>00154         <span class="comment">// Create thread which uses the same heap as main program.</span>
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<a name="l00155"></a>00155         iThreadOne.Create( KThreadOneName, <a class="code" href="class_c_thread_a_o_engine.html#a466c0b37441e2a42ad7d4d237f543f37">ExecuteThreadOne</a>, KStackSize, NULL, iSMediator);
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<a name="l00156"></a>00156         iThreadOne.Resume();
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<a name="l00157"></a>00157         
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<a name="l00158"></a>00158         <span class="comment">// Listen to thread1 state. </span>
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<a name="l00159"></a>00159         iListener = <a class="code" href="class_c_thread_a_o_engine.html#ae47fec51f868c97d25af41502cedb93c">CThreadListener::NewL</a>(iThreadOne);
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<a name="l00160"></a>00160 
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<a name="l00161"></a>00161         iCreatedThreads = ETrue;
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<a name="l00162"></a>00162         }
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<a name="l00163"></a>00163 
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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>