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3 <title>TB10.1 Example Applications: examples/Base/IPC/condvar/condvarlocal/src/producer.cpp Source File</title> |
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8 <h1>examples/Base/IPC/condvar/condvarlocal/src/producer.cpp</h1><a href="producer_8cpp.html">Go to the documentation of this file.</a><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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9 <a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span> |
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10 <a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span> |
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11 <a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span> |
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12 <a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span> |
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13 <a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span> |
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14 <a name="l00007"></a>00007 <span class="comment">//</span> |
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15 <a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span> |
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16 <a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span> |
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17 <a name="l00010"></a>00010 <span class="comment">//</span> |
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18 <a name="l00011"></a>00011 <span class="comment">// Contributors:</span> |
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19 <a name="l00012"></a>00012 <span class="comment">//</span> |
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20 <a name="l00013"></a>00013 <span class="comment">// Description:</span> |
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21 <a name="l00014"></a>00014 <span class="comment">// Contains the definition of member functions of the CProducer class.</span> |
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22 <a name="l00015"></a>00015 <span class="comment">//</span> |
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23 <a name="l00016"></a>00016 |
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24 <a name="l00017"></a>00017 |
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25 <a name="l00018"></a>00018 |
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26 <a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="producer_8h.html">producer.h</a>"</span> |
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27 <a name="l00024"></a>00024 |
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28 <a name="l00031"></a><a class="code" href="class_c_producer.html#3897c9436f1aae1654b3ae1c5a4b6673">00031</a> <a class="code" href="class_c_producer.html">CProducer</a>* <a class="code" href="class_c_producer.html#3897c9436f1aae1654b3ae1c5a4b6673">CProducer::NewL</a>(CConsoleBase* aConsole,<a class="code" href="class_c_queue.html">CQueue</a>* aTokens) |
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29 <a name="l00032"></a>00032 { |
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30 <a name="l00033"></a>00033 <a class="code" href="class_c_producer.html">CProducer</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave)<a class="code" href="class_c_producer.html">CProducer</a>; |
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31 <a name="l00034"></a>00034 CleanupStack::PushL(<span class="keyword">self</span>); |
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32 <a name="l00035"></a>00035 <span class="keyword">self</span>->ConstructL(aConsole,aTokens); |
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33 <a name="l00036"></a>00036 CleanupStack::Pop(<span class="keyword">self</span>); |
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34 <a name="l00037"></a>00037 <span class="keywordflow">return</span> <span class="keyword">self</span>; |
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35 <a name="l00038"></a>00038 } |
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36 <a name="l00039"></a>00039 |
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37 <a name="l00051"></a><a class="code" href="class_c_producer.html#0040101a0f8608387a61d40dcd1df1e1">00051</a> <span class="keywordtype">void</span> <a class="code" href="class_c_producer.html#0040101a0f8608387a61d40dcd1df1e1">CProducer::ConstructL</a>(CConsoleBase* aConsole,<a class="code" href="class_c_queue.html">CQueue</a>* aTokens) |
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38 <a name="l00052"></a>00052 { |
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39 <a name="l00053"></a>00053 iConsole = aConsole; |
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40 <a name="l00054"></a>00054 iQueue = aTokens; |
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41 <a name="l00055"></a>00055 |
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42 <a name="l00056"></a>00056 <span class="comment">// Create an object of the CPeriodic class.</span> |
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43 <a name="l00057"></a>00057 iPeriodicProd = CPeriodic::NewL(CActive::EPriorityUserInput); |
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44 <a name="l00058"></a>00058 |
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45 <a name="l00059"></a>00059 <span class="comment">// Create the producer thread.</span> |
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46 <a name="l00060"></a>00060 _LIT(KProducer,<span class="stringliteral">"ProducerThread"</span>); |
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47 <a name="l00061"></a>00061 User::LeaveIfError(iProdThread.Create(KProducer,<a class="code" href="class_c_producer.html#1dc386d260d55e131f450a61553a49c7">ProdThreadFunc</a>,KDefaultStackSize,KMinHeapSize,256*KMinHeapSize,iQueue,EOwnerThread)); |
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48 <a name="l00062"></a>00062 iProdThread.SetPriority(EPriorityMore); |
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49 <a name="l00063"></a>00063 |
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50 <a name="l00064"></a>00064 <span class="comment">// The producer thread invokes the InsertFunction() function every two seconds.</span> |
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51 <a name="l00065"></a>00065 <span class="comment">// Associate InsertFunction() as the call back function for the iPeriodicCons object.</span> |
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52 <a name="l00066"></a>00066 iPeriodicProd->Start(0,3000000,TCallBack(<a class="code" href="class_c_producer.html#2a8f3ef760142c8e424936df25c167d3">InsertFunction</a>,<span class="keyword">this</span>)); |
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53 <a name="l00067"></a>00067 } |
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54 <a name="l00068"></a>00068 |
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55 <a name="l00072"></a>00072 CProducer::CProducer() |
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56 <a name="l00073"></a>00073 { |
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57 <a name="l00074"></a>00074 } |
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58 <a name="l00075"></a>00075 |
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59 <a name="l00079"></a><a class="code" href="class_c_producer.html#18ffcf23a5cb4d45b6e4ed9399b4c026">00079</a> <span class="keywordtype">void</span> <a class="code" href="class_c_producer.html#18ffcf23a5cb4d45b6e4ed9399b4c026">CProducer::Display</a>() |
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60 <a name="l00080"></a>00080 { |
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61 <a name="l00081"></a>00081 RArray<TInt> array; |
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62 <a name="l00082"></a>00082 <span class="comment">// Initialize the array.</span> |
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63 <a name="l00083"></a>00083 <span class="comment">// The array reflects the contents of the CQueue queue.</span> |
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64 <a name="l00084"></a>00084 iQueue-><a class="code" href="class_c_queue.html#b4d7758aee550b3f77a800959979e9fd">GetTokens</a>(array); |
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65 <a name="l00085"></a>00085 <span class="comment">// Print the array.</span> |
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66 <a name="l00086"></a>00086 iConsole->Printf(KNewLine); |
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67 <a name="l00087"></a>00087 _LIT(KTextQueue,<span class="stringliteral">"Queue Contents:\n[ "</span>); |
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68 <a name="l00088"></a>00088 iConsole->Printf(KTextQueue); |
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69 <a name="l00089"></a>00089 |
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70 <a name="l00090"></a>00090 _LIT(KTextIntFormat,<span class="stringliteral">"%d "</span>); |
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71 <a name="l00091"></a>00091 |
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72 <a name="l00092"></a>00092 <span class="keywordflow">for</span>(TInt ix = 0 ; ix < array.Count() ; ix++) |
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73 <a name="l00093"></a>00093 { |
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74 <a name="l00094"></a>00094 iConsole->Printf(KTextIntFormat,array[ix]); |
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75 <a name="l00095"></a>00095 } |
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76 <a name="l00096"></a>00096 |
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77 <a name="l00097"></a>00097 _LIT(KTextQueueEnd,<span class="stringliteral">"]"</span>); |
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78 <a name="l00098"></a>00098 iConsole->Printf(KTextQueueEnd); |
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79 <a name="l00099"></a>00099 iConsole->Printf(KNewLine); |
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80 <a name="l00100"></a>00100 iConsole->Printf(KNewLine); |
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81 <a name="l00101"></a>00101 array.Close(); |
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82 <a name="l00102"></a>00102 } |
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83 <a name="l00103"></a>00103 |
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84 <a name="l00109"></a><a class="code" href="class_c_producer.html#1dc386d260d55e131f450a61553a49c7">00109</a> TInt <a class="code" href="class_c_producer.html#1dc386d260d55e131f450a61553a49c7">CProducer::ProdThreadFunc</a>(TAny* aPtr) |
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85 <a name="l00110"></a>00110 { |
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86 <a name="l00111"></a>00111 <span class="comment">// The while loop mechanism ensures that the thread performs the CQueue::Insert() operation each time RThread::Resume() is invoked on the thread handle.</span> |
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87 <a name="l00112"></a>00112 <span class="keywordflow">while</span>(<span class="keyword">true</span>) |
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88 <a name="l00113"></a>00113 { |
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89 <a name="l00114"></a>00114 <a class="code" href="class_c_queue.html">CQueue</a>* ptr = (<a class="code" href="class_c_queue.html">CQueue</a>*)aPtr; |
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90 <a name="l00115"></a>00115 __ASSERT_ALWAYS(ptr,User::Panic(KTxtPanic,-1)); |
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91 <a name="l00116"></a>00116 <span class="comment">// Insert a token into the queue.</span> |
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92 <a name="l00117"></a>00117 ptr-><a class="code" href="class_c_queue.html#cf8845b17955c6cf4e6b779630aa7f50">Insert</a>(); |
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93 <a name="l00118"></a>00118 <span class="comment">// Suspend the thread.</span> |
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94 <a name="l00119"></a>00119 RThread().Suspend(); |
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95 <a name="l00120"></a>00120 } |
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96 <a name="l00121"></a>00121 <span class="keywordflow">return</span> KErrNone; |
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97 <a name="l00122"></a>00122 } |
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98 <a name="l00123"></a>00123 |
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99 <a name="l00127"></a><a class="code" href="class_c_producer.html#bcfcc99dcdc64e03c08243375822dcf0">00127</a> <span class="keywordtype">void</span> <a class="code" href="class_c_producer.html#bcfcc99dcdc64e03c08243375822dcf0">CProducer::ResumeProd</a>() |
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100 <a name="l00128"></a>00128 { |
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101 <a name="l00129"></a>00129 <span class="comment">// Call the RThread::Resume() function on the producer thread.</span> |
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102 <a name="l00130"></a>00130 <span class="comment">// Control goes to the CProducer::ProdThreadFunc() function after this statement.</span> |
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103 <a name="l00131"></a>00131 iProdThread.Resume(); |
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104 <a name="l00132"></a>00132 } |
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105 <a name="l00133"></a>00133 |
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106 <a name="l00137"></a><a class="code" href="class_c_producer.html#0d0ebcf368ff02703286cfae62965e8f">00137</a> <span class="keywordtype">void</span> <a class="code" href="class_c_producer.html#0d0ebcf368ff02703286cfae62965e8f">CProducer::Produce</a>() |
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107 <a name="l00138"></a>00138 { |
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108 <a name="l00139"></a>00139 <span class="comment">// Call the CQueue::Insert() function.</span> |
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109 <a name="l00140"></a>00140 iQueue-><a class="code" href="class_c_queue.html#cf8845b17955c6cf4e6b779630aa7f50">Insert</a>(); |
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110 <a name="l00141"></a>00141 } |
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111 <a name="l00142"></a>00142 |
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112 <a name="l00146"></a><a class="code" href="class_c_producer.html#8edcde2babed9948f65057d75e6b3899">00146</a> <a class="code" href="class_c_producer.html#8edcde2babed9948f65057d75e6b3899">CProducer::~CProducer</a>() |
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113 <a name="l00147"></a>00147 { |
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114 <a name="l00148"></a>00148 iProdThread.Kill(KErrCancel); |
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115 <a name="l00149"></a>00149 <span class="keyword">delete</span> iPeriodicProd; |
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116 <a name="l00150"></a>00150 } |
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117 <a name="l00151"></a>00151 |
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118 <a name="l00152"></a>00152 |
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119 <a name="l00158"></a><a class="code" href="class_c_producer.html#2a8f3ef760142c8e424936df25c167d3">00158</a> TInt <a class="code" href="class_c_producer.html#2a8f3ef760142c8e424936df25c167d3">CProducer::InsertFunction</a>(TAny* aPtr) |
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120 <a name="l00159"></a>00159 { |
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121 <a name="l00160"></a>00160 <a class="code" href="class_c_producer.html">CProducer</a>* ptr = <span class="keyword">static_cast<</span><a class="code" href="class_c_producer.html">CProducer</a>*<span class="keyword">></span> (aPtr); |
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122 <a name="l00161"></a>00161 __ASSERT_ALWAYS(ptr,User::Panic(KTxtPanic,-1)); |
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123 <a name="l00162"></a>00162 <span class="comment">// Invoke the RThread::Resume() function on the producer thread repeatedly.</span> |
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124 <a name="l00163"></a>00163 ptr-><a class="code" href="class_c_producer.html#bcfcc99dcdc64e03c08243375822dcf0">ResumeProd</a>(); |
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125 <a name="l00164"></a>00164 <span class="keywordflow">return</span> KErrNone; |
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126 <a name="l00165"></a>00165 } |
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127 </pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Thu Jan 21 10:32:56 2010 for TB10.1 Example Applications by |
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128 <a href="http://www.doxygen.org/index.html"> |
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129 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address> |
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