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3 <title>TB10.1 Example Applications: examples/Base/IPC/pubsub/publishstd.cpp Source File</title> |
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8 <h1>examples/Base/IPC/pubsub/publishstd.cpp</h1><a href="publishstd_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">// Demonstrates standard state pattern of publishing a byte-array property</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="publish_8h.html">publish.h</a>"</span> |
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27 <a name="l00024"></a>00024 |
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28 <a name="l00025"></a><a class="code" href="publishstd_8cpp.html#d789d40251baeb2f60e118de4856583d">00025</a> LOCAL_D CConsoleBase* <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>; |
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29 <a name="l00026"></a>00026 |
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30 <a name="l00032"></a><a class="code" href="publishstd_8cpp.html#e3dba9d5ec6d59791d61680c67729f0e">00032</a> <span class="keywordtype">void</span> <a class="code" href="publish_8h.html#e3dba9d5ec6d59791d61680c67729f0e">PublishL</a>(RProperty& aProperty,TDes16& aBuf) |
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31 <a name="l00033"></a>00033 { |
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32 <a name="l00034"></a>00034 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtPublish); |
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33 <a name="l00035"></a>00035 |
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34 <a name="l00036"></a>00036 <span class="comment">// Publish the property</span> |
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35 <a name="l00037"></a>00037 <span class="comment">// Failure to publish values in standard state publishing pattern is treated as a serious error</span> |
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36 <a name="l00038"></a>00038 User::LeaveIfError(aProperty.Set(aBuf)); |
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37 <a name="l00039"></a>00039 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtArray); |
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38 <a name="l00040"></a>00040 |
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39 <a name="l00041"></a>00041 <span class="comment">// Print the value of the byte-array</span> |
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40 <a name="l00042"></a>00042 TInt bufLength = aBuf.Length(); |
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41 <a name="l00043"></a>00043 <span class="keywordflow">for</span>(TInt ix = 0; ix < bufLength; ix++) |
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42 <a name="l00044"></a>00044 { |
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43 <a name="l00045"></a>00045 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtArrayElement,aBuf[ix]); |
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44 <a name="l00046"></a>00046 } |
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45 <a name="l00047"></a>00047 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtNewLine); |
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46 <a name="l00048"></a>00048 } |
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47 <a name="l00049"></a>00049 |
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48 <a name="l00050"></a><a class="code" href="publishstd_8cpp.html#109e92336b785fe1dd555ef92fbaeb9c">00050</a> <span class="keywordtype">void</span> <a class="code" href="_i_p_c_2condvar_2condvarglobal_2src_2adder_8cpp.html#feaed5465c78704271678cde943d7e8a">DoExampleL</a>() |
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49 <a name="l00051"></a>00051 { |
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50 <a name="l00052"></a>00052 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtStPublish); |
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51 <a name="l00053"></a>00053 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtDefine); |
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52 <a name="l00054"></a>00054 |
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53 <a name="l00055"></a>00055 <span class="comment">// Define and pre-allocate memory to the byte-array property</span> |
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54 <a name="l00056"></a>00056 RProperty::Define(<a class="code" href="pubsub_8h.html#0ca92acc78f916915b7e1cf2b2c3c809">KMyPropertyCat</a>, <a class="code" href="pubsub_8h.html#ecb6127867eb677890bbf45edc8e4e76">KMyPropertyName</a>,RProperty::EByteArray,KAllowAllPolicy,KAllowAllPolicy,<a class="code" href="pubsub_8h.html#a0735bf327c9644c10281b7815bf519d">KArraySize</a>); |
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55 <a name="l00057"></a>00057 RProperty myProperty; |
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56 <a name="l00058"></a>00058 <span class="comment">// Create a handle to the property</span> |
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57 <a name="l00059"></a>00059 User::LeaveIfError(myProperty.Attach(<a class="code" href="pubsub_8h.html#0ca92acc78f916915b7e1cf2b2c3c809">KMyPropertyCat</a>,<a class="code" href="pubsub_8h.html#ecb6127867eb677890bbf45edc8e4e76">KMyPropertyName</a>,EOwnerThread)); |
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58 <a name="l00060"></a>00060 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtCreateHandle); |
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59 <a name="l00061"></a>00061 |
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60 <a name="l00062"></a>00062 <span class="comment">// Byte-Array property value to be published</span> |
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61 <a name="l00063"></a>00063 TUint16 array[<a class="code" href="pubsub_8h.html#a0735bf327c9644c10281b7815bf519d">KArraySize</a>] = {10,20,30,40}; |
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62 <a name="l00064"></a>00064 |
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63 <a name="l00065"></a>00065 <span class="comment">// Descriptor that the array contents are copied into</span> |
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64 <a name="l00066"></a>00066 TBuf16<KBufSize> buf; |
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65 <a name="l00067"></a>00067 |
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66 <a name="l00068"></a>00068 <span class="comment">// Copy array contents into the descriptor</span> |
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67 <a name="l00069"></a>00069 buf.Copy(&array[0],<span class="keyword">sizeof</span>(array)); |
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68 <a name="l00070"></a>00070 buf.SetLength(<a class="code" href="pubsub_8h.html#a0735bf327c9644c10281b7815bf519d">KArraySize</a>); |
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69 <a name="l00071"></a>00071 |
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70 <a name="l00072"></a>00072 <span class="comment">// Publish the property</span> |
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71 <a name="l00073"></a>00073 <a class="code" href="publish_8h.html#e3dba9d5ec6d59791d61680c67729f0e">PublishL</a>(myProperty,buf); |
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72 <a name="l00074"></a>00074 |
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73 <a name="l00075"></a>00075 <span class="comment">// Change the array contents</span> |
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74 <a name="l00076"></a>00076 array[0] = 0x00ab; |
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75 <a name="l00077"></a>00077 array[1] = 0x00bc; |
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76 <a name="l00078"></a>00078 array[2] = 0x00cd; |
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77 <a name="l00079"></a>00079 array[3] = 0x00de; |
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78 <a name="l00080"></a>00080 array[4] = 0x00ef; |
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79 <a name="l00081"></a>00081 array[5] = 0x00fa; |
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80 <a name="l00082"></a>00082 |
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81 <a name="l00083"></a>00083 buf.Copy(&array[0],<span class="keyword">sizeof</span>(array)); |
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82 <a name="l00084"></a>00084 <span class="comment">// Copy array contents into the descriptor</span> |
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83 <a name="l00085"></a>00085 buf.SetLength(<a class="code" href="pubsub_8h.html#a0735bf327c9644c10281b7815bf519d">KArraySize</a>); |
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84 <a name="l00086"></a>00086 |
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85 <a name="l00087"></a>00087 <span class="comment">// Wait for a key press</span> |
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86 <a name="l00088"></a>00088 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtEnter); |
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87 <a name="l00089"></a>00089 <span class="keywordflow">while</span>(<a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch()!= EKeyEnter) |
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88 <a name="l00090"></a>00090 { |
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89 <a name="l00091"></a>00091 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtEnter); |
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90 <a name="l00092"></a>00092 } |
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91 <a name="l00093"></a>00093 |
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92 <a name="l00094"></a>00094 <span class="comment">// Publish the property</span> |
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93 <a name="l00095"></a>00095 <a class="code" href="publish_8h.html#e3dba9d5ec6d59791d61680c67729f0e">PublishL</a>(myProperty,buf); |
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94 <a name="l00096"></a>00096 |
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95 <a name="l00097"></a>00097 <span class="comment">// Indicate the publisher will not publish any more values</span> |
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96 <a name="l00098"></a>00098 <span class="comment">// The subscriber stops its subscription to the property when this value is published</span> |
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97 <a name="l00099"></a>00099 buf.Copy(KStop); |
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98 <a name="l00100"></a>00100 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtEnter); |
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99 <a name="l00101"></a>00101 |
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100 <a name="l00102"></a>00102 <span class="comment">// Wait for a key press</span> |
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101 <a name="l00103"></a>00103 <span class="keywordflow">while</span>(<a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch()!= EKeyEnter) |
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102 <a name="l00104"></a>00104 { |
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103 <a name="l00105"></a>00105 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtEnter); |
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104 <a name="l00106"></a>00106 } |
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105 <a name="l00107"></a>00107 |
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106 <a name="l00108"></a>00108 <span class="comment">// Publish the property</span> |
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107 <a name="l00109"></a>00109 <a class="code" href="publish_8h.html#e3dba9d5ec6d59791d61680c67729f0e">PublishL</a>(myProperty,buf); |
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108 <a name="l00110"></a>00110 |
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109 <a name="l00111"></a>00111 <span class="comment">// Close the handle to the property</span> |
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110 <a name="l00112"></a>00112 |
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111 <a name="l00113"></a>00113 myProperty.Close(); |
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112 <a name="l00114"></a>00114 |
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113 <a name="l00115"></a>00115 <span class="comment">// Wait for a key press</span> |
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114 <a name="l00116"></a>00116 <span class="keywordflow">while</span>(<a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch()!= EKeyEnter) |
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115 <a name="l00117"></a>00117 { |
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116 <a name="l00118"></a>00118 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtEnter); |
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117 <a name="l00119"></a>00119 } |
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118 <a name="l00120"></a>00120 |
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119 <a name="l00121"></a>00121 <span class="comment">// The publisher has finished so delete the property</span> |
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120 <a name="l00122"></a>00122 User::LeaveIfError(RProperty::Delete(<a class="code" href="pubsub_8h.html#0ca92acc78f916915b7e1cf2b2c3c809">KMyPropertyCat</a>, <a class="code" href="pubsub_8h.html#ecb6127867eb677890bbf45edc8e4e76">KMyPropertyName</a>)); |
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121 <a name="l00123"></a>00123 } |
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122 <a name="l00124"></a>00124 |
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123 <a name="l00125"></a><a class="code" href="publishstd_8cpp.html#0f358e9c4355138f629b8c4f37310295">00125</a> GLDEF_C TInt <a class="code" href="dbllist_8cpp.html#0f358e9c4355138f629b8c4f37310295">E32Main</a>() |
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124 <a name="l00126"></a>00126 { |
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125 <a name="l00127"></a>00127 __UHEAP_MARK; |
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126 <a name="l00128"></a>00128 CTrapCleanup* cleanup = CTrapCleanup::New(); |
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127 <a name="l00129"></a>00129 |
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128 <a name="l00130"></a>00130 TRAPD(createError, <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a> = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen))); |
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129 <a name="l00131"></a>00131 <span class="keywordflow">if</span> (createError) |
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130 <a name="l00132"></a>00132 <span class="keywordflow">return</span> createError; |
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131 <a name="l00133"></a>00133 |
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132 <a name="l00134"></a>00134 TRAPD(mainError, <a class="code" href="_i_p_c_2condvar_2condvarglobal_2src_2adder_8cpp.html#feaed5465c78704271678cde943d7e8a">DoExampleL</a>()); |
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133 <a name="l00135"></a>00135 <span class="keywordflow">if</span> (mainError) |
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134 <a name="l00136"></a>00136 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTextFailed, mainError); |
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135 <a name="l00137"></a>00137 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTextPressAnyKey); |
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136 <a name="l00138"></a>00138 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch(); |
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137 <a name="l00139"></a>00139 |
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138 <a name="l00140"></a>00140 <span class="keyword">delete</span> <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>; |
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139 <a name="l00141"></a>00141 <span class="keyword">delete</span> cleanup; |
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140 <a name="l00142"></a>00142 __UHEAP_MARKEND; |
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141 <a name="l00143"></a>00143 <span class="keywordflow">return</span> KErrNone; |
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142 <a name="l00144"></a>00144 } |
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143 </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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145 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address> |
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