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3 <title>TB10.1 Example Applications: examples/Base/IPC/pubsub/publishpe.cpp Source File</title> |
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8 <h1>examples/Base/IPC/pubsub/publishpe.cpp</h1><a href="publishpe_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 pure event distribution pattern of publishing an integer 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="publishpe_8h.html">publishpe.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="publishpe_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="l00027"></a><a class="code" href="publishpe_8cpp.html#109e92336b785fe1dd555ef92fbaeb9c">00027</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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31 <a name="l00028"></a>00028 { |
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32 <a name="l00029"></a>00029 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtPEPublish); |
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33 <a name="l00030"></a>00030 RProperty myProperty; |
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34 <a name="l00031"></a>00031 |
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35 <a name="l00032"></a>00032 <span class="comment">// Define the property and create a handle to it</span> |
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36 <a name="l00033"></a>00033 User::LeaveIfError(RProperty::Define(<a class="code" href="pubsub_8h.html#0ca92acc78f916915b7e1cf2b2c3c809">KMyPropertyCat</a>, <a class="code" href="pubsub_8h.html#ecb6127867eb677890bbf45edc8e4e76">KMyPropertyName</a>,RProperty::EInt,KAllowAllPolicy,KAllowAllPolicy)); |
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37 <a name="l00034"></a>00034 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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38 <a name="l00035"></a>00035 |
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39 <a name="l00036"></a>00036 <span class="comment">// The value of the property</span> |
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40 <a name="l00037"></a>00037 TInt value; |
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41 <a name="l00038"></a>00038 |
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42 <a name="l00039"></a>00039 <span class="comment">// Publish the property after every 3 seconds</span> |
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43 <a name="l00040"></a>00040 <span class="keywordflow">for</span>(TInt ix = 0; ix <= <a class="code" href="pubsub_8h.html#7764fafcf6f031968904a2ab1965dcc9">KMax</a> ; ix += 20) |
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44 <a name="l00041"></a>00041 { |
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45 <a name="l00042"></a>00042 User::After(<a class="code" href="pubsub_8h.html#a34c75c4ca70d89fe2aaf1ab8444d420">KTimeInterval</a>); |
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46 <a name="l00043"></a>00043 <span class="comment">// Publish random values</span> |
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47 <a name="l00044"></a>00044 <span class="comment">// In the pure event pattern of publishing, the value of the property is insignificant</span> |
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48 <a name="l00045"></a>00045 <span class="comment">// Multiple publishing is only to let the subscriber know that an event has occurred</span> |
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49 <a name="l00046"></a>00046 value = Math::Random(); |
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50 <a name="l00047"></a>00047 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTxtInt,value); |
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51 <a name="l00048"></a>00048 User::LeaveIfError(myProperty.Set(value)); |
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52 <a name="l00049"></a>00049 } |
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53 <a name="l00050"></a>00050 |
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54 <a name="l00051"></a>00051 <span class="comment">// Free the handle to the property</span> |
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55 <a name="l00052"></a>00052 myProperty.Close(); |
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56 <a name="l00053"></a>00053 |
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57 <a name="l00054"></a>00054 <span class="comment">// The publisher has finished so delete the property</span> |
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58 <a name="l00055"></a>00055 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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59 <a name="l00056"></a>00056 } |
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60 <a name="l00057"></a>00057 |
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61 <a name="l00058"></a><a class="code" href="publishpe_8cpp.html#0f358e9c4355138f629b8c4f37310295">00058</a> GLDEF_C TInt <a class="code" href="dbllist_8cpp.html#0f358e9c4355138f629b8c4f37310295">E32Main</a>() |
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62 <a name="l00059"></a>00059 { |
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63 <a name="l00060"></a>00060 __UHEAP_MARK; |
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64 <a name="l00061"></a>00061 CTrapCleanup* cleanup = CTrapCleanup::New(); |
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65 <a name="l00062"></a>00062 |
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66 <a name="l00063"></a>00063 TRAPD(createError, <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a> = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen))); |
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67 <a name="l00064"></a>00064 <span class="keywordflow">if</span> (createError) |
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68 <a name="l00065"></a>00065 <span class="keywordflow">return</span> createError; |
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69 <a name="l00066"></a>00066 |
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70 <a name="l00067"></a>00067 TRAPD(mainError, <a class="code" href="_i_p_c_2condvar_2condvarglobal_2src_2adder_8cpp.html#feaed5465c78704271678cde943d7e8a">DoExampleL</a>()); |
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71 <a name="l00068"></a>00068 <span class="keywordflow">if</span> (mainError) |
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72 <a name="l00069"></a>00069 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTextFailed, mainError); |
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73 <a name="l00070"></a>00070 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KTextPressAnyKey); |
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74 <a name="l00071"></a>00071 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch(); |
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75 <a name="l00072"></a>00072 |
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76 <a name="l00073"></a>00073 <span class="keyword">delete</span> <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>; |
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77 <a name="l00074"></a>00074 <span class="keyword">delete</span> cleanup; |
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78 <a name="l00075"></a>00075 __UHEAP_MARKEND; |
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79 <a name="l00076"></a>00076 <span class="keywordflow">return</span> KErrNone; |
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80 <a name="l00077"></a>00077 } |
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81 </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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82 <a href="http://www.doxygen.org/index.html"> |
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83 <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address> |
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