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3 <title>TB10.1 Example Applications: examples/Base/IPC/pubsub/subscribestd.cpp Source File</title> |
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8 <h1>examples/Base/IPC/pubsub/subscribestd.cpp</h1><a href="subscribestd_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 the standard state pattern of subscribing to 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="subscribe_8h.html">subscribe.h</a>"</span> |
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27 <a name="l00024"></a><a class="code" href="subscribestd_8cpp.html#d789d40251baeb2f60e118de4856583d">00024</a> LOCAL_D CConsoleBase* <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>; |
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28 <a name="l00025"></a>00025 |
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29 <a name="l00029"></a>00029 CArrayPropertyWatch::CArrayPropertyWatch():CActive(EPriority) |
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30 <a name="l00030"></a>00030 { |
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31 <a name="l00031"></a>00031 } |
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32 <a name="l00032"></a>00032 |
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33 <a name="l00037"></a>00037 <span class="keywordtype">void</span> CArrayPropertyWatch::ConstructL(CConsoleBase* aConsole) |
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34 <a name="l00038"></a>00038 { |
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35 <a name="l00039"></a>00039 User::LeaveIfError(iProperty.Attach(<a class="code" href="pubsub_8h.html#0ca92acc78f916915b7e1cf2b2c3c809">KMyPropertyCat</a>,<a class="code" href="pubsub_8h.html#ecb6127867eb677890bbf45edc8e4e76">KMyPropertyName</a>)); |
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36 <a name="l00040"></a>00040 iConsole = aConsole; |
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37 <a name="l00041"></a>00041 CActiveScheduler::Add(<span class="keyword">this</span>); |
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38 <a name="l00042"></a>00042 } |
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39 <a name="l00043"></a>00043 |
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40 <a name="l00049"></a>00049 <a class="code" href="class_c_array_property_watch.html">CArrayPropertyWatch</a>* <a class="code" href="class_c_array_property_watch.html#54b576da65400b50b8845f0ea8ad5c8e">CArrayPropertyWatch::NewL</a>(CConsoleBase* aConsole) |
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41 <a name="l00050"></a>00050 { |
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42 <a name="l00051"></a>00051 <a class="code" href="class_c_array_property_watch.html">CArrayPropertyWatch</a>* <span class="keyword">self</span> = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_array_property_watch.html">CArrayPropertyWatch</a>; |
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43 <a name="l00052"></a>00052 CleanupStack::PushL(<span class="keyword">self</span>); |
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44 <a name="l00053"></a>00053 <span class="keyword">self</span>->ConstructL(aConsole); |
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45 <a name="l00054"></a>00054 CleanupStack::Pop(<span class="keyword">self</span>); |
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46 <a name="l00055"></a>00055 <span class="keywordflow">return</span> <span class="keyword">self</span>; |
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47 <a name="l00056"></a>00056 } |
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48 <a name="l00057"></a>00057 |
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49 <a name="l00061"></a>00061 CArrayPropertyWatch::~CArrayPropertyWatch() |
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50 <a name="l00062"></a>00062 { |
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51 <a name="l00063"></a>00063 iProperty.Close(); |
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52 <a name="l00064"></a>00064 Cancel(); |
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53 <a name="l00065"></a>00065 } |
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54 <a name="l00066"></a>00066 |
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55 <a name="l00070"></a>00070 <span class="keywordtype">void</span> CArrayPropertyWatch::DoCancel() |
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56 <a name="l00071"></a>00071 { |
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57 <a name="l00072"></a>00072 iProperty.Cancel(); |
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58 <a name="l00073"></a>00073 } |
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59 <a name="l00074"></a>00074 |
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60 <a name="l00079"></a>00079 <span class="keywordtype">void</span> CArrayPropertyWatch::RunL() |
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61 <a name="l00080"></a>00080 { |
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62 <a name="l00081"></a>00081 <span class="comment">// Get the value of the property</span> |
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63 <a name="l00082"></a>00082 TBuf16<KArraySize> buf; |
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64 <a name="l00083"></a>00083 TInt err = iProperty.Get(buf); |
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65 <a name="l00084"></a>00084 <span class="keywordflow">if</span>(err == KErrNotFound) |
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66 <a name="l00085"></a>00085 { |
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67 <a name="l00086"></a>00086 <span class="comment">// Leave the function if the property is not defined</span> |
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68 <a name="l00087"></a>00087 CActiveScheduler::Stop(); |
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69 <a name="l00088"></a>00088 User::Leave(err); |
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70 <a name="l00089"></a>00089 } |
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71 <a name="l00090"></a>00090 <span class="keywordflow">else</span> |
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72 <a name="l00091"></a>00091 { |
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73 <a name="l00092"></a>00092 <span class="keywordflow">if</span>(buf == KStop) |
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74 <a name="l00093"></a>00093 { |
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75 <a name="l00094"></a>00094 CActiveScheduler::Stop(); |
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76 <a name="l00095"></a>00095 } |
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77 <a name="l00096"></a>00096 <span class="keywordflow">else</span> |
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78 <a name="l00097"></a>00097 { |
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79 <a name="l00098"></a>00098 <span class="comment">// Re-subscribe to the property</span> |
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80 <a name="l00099"></a>00099 <a class="code" href="class_c_array_property_watch.html#fd703433c800398b4e9b82aa348a3164">WatchL</a>(); |
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81 <a name="l00100"></a>00100 } |
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82 <a name="l00101"></a>00101 } |
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83 <a name="l00102"></a>00102 } |
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84 <a name="l00103"></a>00103 |
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85 <a name="l00108"></a>00108 <span class="keywordtype">void</span> CArrayPropertyWatch::PrintProperty(TDes16& aBuf) |
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86 <a name="l00109"></a>00109 { |
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87 <a name="l00110"></a>00110 iConsole->Printf(KTxtArray); |
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88 <a name="l00111"></a>00111 TInt bufLength = aBuf.Length(); |
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89 <a name="l00112"></a>00112 <span class="keywordflow">for</span>(TInt ix = 0; ix < bufLength;ix++) |
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90 <a name="l00113"></a>00113 { |
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91 <a name="l00114"></a>00114 iConsole->Printf(KTxtArrayElement,aBuf[ix]); |
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92 <a name="l00115"></a>00115 } |
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93 <a name="l00116"></a>00116 iConsole->Printf(KTxtNewLine); |
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94 <a name="l00117"></a>00117 } |
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95 <a name="l00118"></a>00118 |
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96 <a name="l00122"></a><a class="code" href="class_c_array_property_watch.html#fd703433c800398b4e9b82aa348a3164">00122</a> <span class="keywordtype">void</span> <a class="code" href="class_c_array_property_watch.html#fd703433c800398b4e9b82aa348a3164">CArrayPropertyWatch::WatchL</a>() |
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97 <a name="l00123"></a>00123 { |
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98 <a name="l00124"></a>00124 <span class="comment">// Get the value of the property</span> |
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99 <a name="l00125"></a>00125 TBuf16<KArraySize> buf; |
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100 <a name="l00126"></a>00126 TInt err = iProperty.Get(buf); |
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101 <a name="l00127"></a>00127 <span class="keywordflow">if</span>(err == KErrNotFound) |
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102 <a name="l00128"></a>00128 { |
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103 <a name="l00129"></a>00129 <span class="comment">// Leave if the property is not found</span> |
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104 <a name="l00130"></a>00130 User::Leave(err); |
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105 <a name="l00131"></a>00131 } |
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106 <a name="l00132"></a>00132 PrintProperty(buf); |
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107 <a name="l00133"></a>00133 <span class="comment">// Subscribe to the property</span> |
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108 <a name="l00134"></a>00134 iProperty.Subscribe(iStatus); |
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109 <a name="l00135"></a>00135 <span class="comment">// Issue an outstanding request</span> |
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110 <a name="l00136"></a>00136 SetActive(); |
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111 <a name="l00137"></a>00137 } |
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112 <a name="l00138"></a>00138 |
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113 <a name="l00139"></a><a class="code" href="subscribestd_8cpp.html#109e92336b785fe1dd555ef92fbaeb9c">00139</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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114 <a name="l00140"></a>00140 { |
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115 <a name="l00141"></a>00141 CActiveScheduler* scheduler = <span class="keyword">new</span> (ELeave) CActiveScheduler(); |
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116 <a name="l00142"></a>00142 CleanupStack::PushL(scheduler); |
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117 <a name="l00143"></a>00143 CActiveScheduler::Install(scheduler); |
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118 <a name="l00144"></a>00144 |
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119 <a name="l00145"></a>00145 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtSpecSt); |
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120 <a name="l00146"></a>00146 |
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121 <a name="l00147"></a>00147 <span class="comment">// Create the byte-array property watch active object</span> |
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122 <a name="l00148"></a>00148 <a class="code" href="class_c_array_property_watch.html">CArrayPropertyWatch</a>* obj = <a class="code" href="class_c_array_property_watch.html#54b576da65400b50b8845f0ea8ad5c8e">CArrayPropertyWatch::NewL</a>(<a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>); |
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123 <a name="l00149"></a>00149 CleanupStack::PushL(obj); |
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124 <a name="l00150"></a>00150 |
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125 <a name="l00151"></a>00151 <span class="comment">// Subscribe to the property and start the scheduler</span> |
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126 <a name="l00152"></a>00152 obj-><a class="code" href="class_c_array_property_watch.html#fd703433c800398b4e9b82aa348a3164">WatchL</a>(); |
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127 <a name="l00153"></a>00153 CActiveScheduler::Start(); |
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128 <a name="l00154"></a>00154 |
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129 <a name="l00155"></a>00155 CleanupStack::PopAndDestroy(obj); |
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130 <a name="l00156"></a>00156 CleanupStack::PopAndDestroy(scheduler); |
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131 <a name="l00157"></a>00157 } |
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132 <a name="l00158"></a>00158 |
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133 <a name="l00159"></a><a class="code" href="subscribestd_8cpp.html#0f358e9c4355138f629b8c4f37310295">00159</a> GLDEF_C TInt <a class="code" href="dbllist_8cpp.html#0f358e9c4355138f629b8c4f37310295">E32Main</a>() |
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134 <a name="l00160"></a>00160 { |
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135 <a name="l00161"></a>00161 __UHEAP_MARK; |
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136 <a name="l00162"></a>00162 CTrapCleanup* cleanup = CTrapCleanup::New(); |
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137 <a name="l00163"></a>00163 |
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138 <a name="l00164"></a>00164 TRAPD(createError, <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a> = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen))); |
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139 <a name="l00165"></a>00165 <span class="keywordflow">if</span> (createError) |
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140 <a name="l00166"></a>00166 <span class="keywordflow">return</span> createError; |
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141 <a name="l00167"></a>00167 |
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142 <a name="l00168"></a>00168 TRAPD(mainError, <a class="code" href="_i_p_c_2condvar_2condvarglobal_2src_2adder_8cpp.html#feaed5465c78704271678cde943d7e8a">DoExampleL</a>()); |
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143 <a name="l00169"></a>00169 <span class="keywordflow">if</span> (mainError) |
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144 <a name="l00170"></a>00170 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTextFailed, mainError); |
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145 <a name="l00171"></a>00171 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTextPressAnyKey); |
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146 <a name="l00172"></a>00172 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch(); |
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147 <a name="l00173"></a>00173 |
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148 <a name="l00174"></a>00174 <span class="keyword">delete</span> <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>; |
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149 <a name="l00175"></a>00175 <span class="keyword">delete</span> cleanup; |
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150 <a name="l00176"></a>00176 __UHEAP_MARKEND; |
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151 <a name="l00177"></a>00177 <span class="keywordflow">return</span> KErrNone; |
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152 <a name="l00178"></a>00178 } |
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153 </pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Thu Jan 21 10:32:57 2010 for TB10.1 Example Applications by |
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154 <a href="http://www.doxygen.org/index.html"> |
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155 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address> |
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