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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_task_manager_engine_reader_8cpp_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
changeset 14 578be2adaf3e
parent 6 43e37759235e
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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/Symbian_OS_End-to-End_Sockets_API_Example/SocketTaskManager_S60/engine/TaskManagerEngineReader.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/Symbian_OS_End-to-End_Sockets_API_Example/SocketTaskManager_S60/engine/TaskManagerEngineReader.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">* ============================================================================</span>
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<a name="l00003"></a>00003 <span class="comment">*  Name     : CTaskManagerEngineReader from TaskManagerEngineReader.cpp</span>
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<a name="l00004"></a>00004 <span class="comment">*  Part of  : TaskManager</span>
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<a name="l00005"></a>00005 <span class="comment">*  Created  : 15/03/2006 by Forum Nokia</span>
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<a name="l00006"></a>00006 <span class="comment">*  Version  : 1.2</span>
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<a name="l00007"></a>00007 <span class="comment">*  Copyright: Nokia Corporation</span>
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<a name="l00008"></a>00008 <span class="comment">* ============================================================================</span>
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<a name="l00009"></a>00009 <span class="comment">*/</span>
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<a name="l00010"></a>00010
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<a name="l00011"></a>00011 <span class="comment">// INCLUDE FILES</span>
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<a name="l00012"></a>00012 <span class="preprocessor">#include &quot;TaskManager.pan&quot;</span>
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<a name="l00013"></a>00013 <span class="preprocessor">#include &quot;TaskManagerEngineReader.h&quot;</span>
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<a name="l00014"></a>00014
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<a name="l00015"></a>00015 <span class="preprocessor">#include &lt;securesocket.h&gt;</span>
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<a name="l00016"></a>00016
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<a name="l00017"></a>00017 <span class="comment">// ================= MEMBER FUNCTIONS =======================</span>
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<a name="l00018"></a>00018
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<a name="l00019"></a>00019 <span class="comment">// Constructor</span>
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<a name="l00020"></a>00020 CTaskManagerEngineReader::CTaskManagerEngineReader( <a class="code" href="class_m_engine_notifier.html">MEngineNotifier</a>&amp; aNotifier )
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<a name="l00021"></a>00021 : CActive( EPriorityStandard ), iSocket( NULL ), iNotifier( aNotifier )
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<a name="l00022"></a>00022         {
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<a name="l00023"></a>00023         }
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<a name="l00024"></a>00024
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<a name="l00025"></a>00025 <span class="comment">// Destructor</span>
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<a name="l00026"></a><a class="code" href="class_c_task_manager_engine_reader.html#af86e28ae1dfeef9980b4ed73f4d947e0">00026</a> <a class="code" href="class_c_task_manager_engine_reader.html#af86e28ae1dfeef9980b4ed73f4d947e0">CTaskManagerEngineReader::~CTaskManagerEngineReader</a>()
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<a name="l00027"></a>00027         {
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<a name="l00028"></a>00028         Cancel();
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<a name="l00029"></a>00029         }
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<a name="l00030"></a>00030
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<a name="l00031"></a>00031 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00032"></a>00032 <span class="comment">// CTaskManagerEngineReader::ConstructL()</span>
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<a name="l00033"></a>00033 <span class="comment">// Second-phase constructor</span>
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<a name="l00034"></a>00034 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00035"></a>00035 <span class="comment">//</span>
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<a name="l00036"></a>00036 <span class="keywordtype">void</span> CTaskManagerEngineReader::ConstructL()
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<a name="l00037"></a>00037         {
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<a name="l00038"></a>00038         CActiveScheduler::Add( <span class="keyword">this</span> );
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<a name="l00039"></a>00039         }
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<a name="l00040"></a>00040
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<a name="l00041"></a>00041 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00042"></a>00042 <span class="comment">// CTaskManagerEngineReader::NewL()</span>
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<a name="l00043"></a>00043 <span class="comment">// Two-phased construction.</span>
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<a name="l00044"></a>00044 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00045"></a>00045 <span class="comment">//</span>
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<a name="l00046"></a><a class="code" href="class_c_task_manager_engine_reader.html#a3268ffb41848c210626da2696a2d10a6">00046</a> <a class="code" href="class_c_task_manager_engine_reader.html">CTaskManagerEngineReader</a>* <a class="code" href="class_c_task_manager_engine_reader.html#a3268ffb41848c210626da2696a2d10a6">CTaskManagerEngineReader::NewL</a>( <a class="code" href="class_m_engine_notifier.html">MEngineNotifier</a>&amp; aNotifier )
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<a name="l00047"></a>00047         {
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<a name="l00048"></a>00048         <a class="code" href="class_c_task_manager_engine_reader.html">CTaskManagerEngineReader</a>* <span class="keyword">self</span> = CTaskManagerEngineReader::NewLC( aNotifier );
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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>00053 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00054"></a>00054 <span class="comment">// CTaskManagerEngineReader::NewLC()</span>
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<a name="l00055"></a>00055 <span class="comment">// Two-phased construction.</span>
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<a name="l00056"></a>00056 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00057"></a>00057 <span class="comment">//</span>
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<a name="l00058"></a>00058 <a class="code" href="class_c_task_manager_engine_reader.html">CTaskManagerEngineReader</a>* CTaskManagerEngineReader::NewLC( <a class="code" href="class_m_engine_notifier.html">MEngineNotifier</a>&amp; aNotifier )
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<a name="l00059"></a>00059         {
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<a name="l00060"></a>00060         <a class="code" href="class_c_task_manager_engine_reader.html">CTaskManagerEngineReader</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_task_manager_engine_reader.html">CTaskManagerEngineReader</a>( aNotifier );
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<a name="l00061"></a>00061         CleanupStack::PushL( <span class="keyword">self</span> );
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<a name="l00062"></a>00062         <span class="keyword">self</span>-&gt;ConstructL();
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<a name="l00063"></a>00063         <span class="keywordflow">return</span> <span class="keyword">self</span>;
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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">// CTaskManagerEngineReader::Start()</span>
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<a name="l00068"></a>00068 <span class="comment">// Initiates the reader.</span>
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<a name="l00069"></a>00069 <span class="comment">// ----------------------------------------------------</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_task_manager_engine_reader.html#aea3e0c03c3fb85f2a5e492dc9032c9cd">00071</a> <span class="keywordtype">void</span> <a class="code" href="class_c_task_manager_engine_reader.html#aea3e0c03c3fb85f2a5e492dc9032c9cd">CTaskManagerEngineReader::Start</a>()
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<a name="l00072"></a>00072         {
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<a name="l00073"></a>00073         <span class="comment">// Initiate a new read from socket into iBuffer</span>
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<a name="l00074"></a>00074     <span class="keywordflow">if</span> (!IsActive())
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<a name="l00075"></a>00075         {
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<a name="l00076"></a>00076         IssueRead();
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<a name="l00077"></a>00077         }
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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 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00081"></a>00081 <span class="comment">// CTaskManagerEngineReader::DoCancel()</span>
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<a name="l00082"></a>00082 <span class="comment">// Cancels an outstanding request.</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">//</span>
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<a name="l00085"></a><a class="code" href="class_c_task_manager_engine_reader.html#a8cfb1523772302d883dd3c858e341ff9">00085</a> <span class="keywordtype">void</span> <a class="code" href="class_c_task_manager_engine_reader.html#a8cfb1523772302d883dd3c858e341ff9">CTaskManagerEngineReader::DoCancel</a>()
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<a name="l00086"></a>00086         {
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<a name="l00087"></a>00087         iSocket-&gt;CancelRecv();
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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="comment">// ----------------------------------------------------</span>
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<a name="l00091"></a>00091 <span class="comment">// CTaskManagerEngineReader::RunL()</span>
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<a name="l00092"></a>00092 <span class="comment">// Handles an active object’s request completion event.</span>
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<a name="l00093"></a>00093 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00094"></a>00094 <span class="comment">//</span>
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<a name="l00095"></a><a class="code" href="class_c_task_manager_engine_reader.html#af48cc56a6b19d794490ffde2c04e4e13">00095</a> <span class="keywordtype">void</span> <a class="code" href="class_c_task_manager_engine_reader.html#af48cc56a6b19d794490ffde2c04e4e13">CTaskManagerEngineReader::RunL</a>()
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<a name="l00096"></a>00096         {
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<a name="l00097"></a>00097         <span class="keywordflow">switch</span>( iStatus.Int() )
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<a name="l00098"></a>00098                 {
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<a name="l00099"></a>00099                 <span class="keywordflow">case</span> KErrNone:
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<a name="l00100"></a>00100                         {
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<a name="l00101"></a>00101                         <span class="comment">// Something was read from socket. Pass it to upper levels</span>
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<a name="l00102"></a>00102                 <span class="keywordflow">if</span>( iNotifier.PackageReceivedL( iBuffer ) )
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<a name="l00103"></a>00103                     {
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<a name="l00104"></a>00104                     IssueRead(); <span class="comment">// Immediately start another read</span>
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<a name="l00105"></a>00105                     }
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<a name="l00106"></a>00106
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<a name="l00107"></a>00107                         <span class="keywordflow">break</span>;
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<a name="l00108"></a>00108                         }
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<a name="l00109"></a>00109                 <span class="keywordflow">default</span>:
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<a name="l00110"></a>00110                     {
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<a name="l00111"></a>00111                     Panic( ETaskManagerInvalidState );
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<a name="l00112"></a>00112                     <span class="keywordflow">break</span>;
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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         }
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<a name="l00116"></a>00116
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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">// CTaskManagerEngineReader::IssueRead()</span>
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<a name="l00119"></a>00119 <span class="comment">// Initiate a single new read from socket.</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">//</span>
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<a name="l00122"></a>00122 <span class="keywordtype">void</span> CTaskManagerEngineReader::IssueRead()
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<a name="l00123"></a>00123         {
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<a name="l00124"></a>00124         <span class="comment">// This deletion is needed for some reason in S60 3rd Edition (at least for the emulator).</span>
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<a name="l00125"></a>00125         <span class="comment">// Otherwise the data in iBuffer will not get replaced on successive read operations to</span>
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<a name="l00126"></a>00126         <span class="comment">// the secure socket.</span>
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<a name="l00127"></a>00127         iBuffer.Delete(0, iBuffer.Length());
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<a name="l00128"></a>00128     iSocket-&gt;RecvOneOrMore(iBuffer, iStatus, iDummyLength);
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<a name="l00129"></a>00129     SetActive();
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<a name="l00130"></a>00130     }
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<a name="l00131"></a>00131
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<a name="l00132"></a>00132 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00133"></a>00133 <span class="comment">// CTaskManagerEngineReader::SetSecureSocket()</span>
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<a name="l00134"></a>00134 <span class="comment">// Sets a new socket from which to read.</span>
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<a name="l00135"></a>00135 <span class="comment">// ----------------------------------------------------</span>
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<a name="l00136"></a>00136 <span class="comment">//</span>
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<a name="l00137"></a><a class="code" href="class_c_task_manager_engine_reader.html#a4d1cc1f1545b71300d64d8d6fd9e3549">00137</a> <span class="keywordtype">void</span> <a class="code" href="class_c_task_manager_engine_reader.html#a4d1cc1f1545b71300d64d8d6fd9e3549">CTaskManagerEngineReader::SetSecureSocket</a>( CSecureSocket* aSocket )
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<a name="l00138"></a>00138     {
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<a name="l00139"></a>00139     iSocket = aSocket;
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<a name="l00140"></a>00140     }
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<a name="l00141"></a>00141
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<a name="l00142"></a>00142 <span class="comment">// End of file</span>
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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