|
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
|
2 <html xmlns="http://www.w3.org/1999/xhtml"> |
|
3 <head> |
|
4 <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> |
|
5 <title>TB9.2 Example Applications: examples/Base/IPC/pubsub/publishpe.cpp Source File</title> |
|
6 <link href="tabs.css" rel="stylesheet" type="text/css"/> |
|
7 <link href="doxygen.css" rel="stylesheet" type="text/css"/> |
|
8 </head> |
|
9 <body> |
|
10 <!-- Generated by Doxygen 1.6.2 --> |
|
11 <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> |
|
12 <a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span> |
|
13 <a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span> |
|
14 <a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span> |
|
15 <a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span> |
|
16 <a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span> |
|
17 <a name="l00007"></a>00007 <span class="comment">//</span> |
|
18 <a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span> |
|
19 <a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span> |
|
20 <a name="l00010"></a>00010 <span class="comment">//</span> |
|
21 <a name="l00011"></a>00011 <span class="comment">// Contributors:</span> |
|
22 <a name="l00012"></a>00012 <span class="comment">//</span> |
|
23 <a name="l00013"></a>00013 <span class="comment">// Description:</span> |
|
24 <a name="l00014"></a>00014 <span class="comment">// Demonstrates the pure event distribution pattern of publishing an integer property</span> |
|
25 <a name="l00015"></a>00015 <span class="comment">//</span> |
|
26 <a name="l00016"></a>00016 |
|
27 <a name="l00017"></a>00017 |
|
28 <a name="l00018"></a>00018 |
|
29 <a name="l00023"></a>00023 <span class="preprocessor">#include "<a class="code" href="publishpe_8h.html">publishpe.h</a>"</span> |
|
30 <a name="l00024"></a>00024 |
|
31 <a name="l00025"></a>00025 LOCAL_D CConsoleBase* console; |
|
32 <a name="l00026"></a>00026 |
|
33 <a name="l00027"></a>00027 <span class="keywordtype">void</span> DoExampleL() |
|
34 <a name="l00028"></a>00028 { |
|
35 <a name="l00029"></a>00029 console->Printf(KTxtPEPublish); |
|
36 <a name="l00030"></a>00030 RProperty myProperty; |
|
37 <a name="l00031"></a>00031 |
|
38 <a name="l00032"></a>00032 <span class="comment">// Define the property and create a handle to it</span> |
|
39 <a name="l00033"></a>00033 User::LeaveIfError(RProperty::Define(KMyPropertyCat, KMyPropertyName,RProperty::EInt,KAllowAllPolicy,KAllowAllPolicy)); |
|
40 <a name="l00034"></a>00034 User::LeaveIfError(myProperty.Attach(KMyPropertyCat,KMyPropertyName,EOwnerThread)); |
|
41 <a name="l00035"></a>00035 |
|
42 <a name="l00036"></a>00036 <span class="comment">// The value of the property</span> |
|
43 <a name="l00037"></a>00037 TInt value; |
|
44 <a name="l00038"></a>00038 |
|
45 <a name="l00039"></a>00039 <span class="comment">// Publish the property after every 3 seconds</span> |
|
46 <a name="l00040"></a>00040 <span class="keywordflow">for</span>(TInt ix = 0; ix <= KMax ; ix += 20) |
|
47 <a name="l00041"></a>00041 { |
|
48 <a name="l00042"></a>00042 User::After(KTimeInterval); |
|
49 <a name="l00043"></a>00043 <span class="comment">// Publish random values</span> |
|
50 <a name="l00044"></a>00044 <span class="comment">// In the pure event pattern of publishing, the value of the property is insignificant</span> |
|
51 <a name="l00045"></a>00045 <span class="comment">// Multiple publishing is only to let the subscriber know that an event has occurred</span> |
|
52 <a name="l00046"></a>00046 value = Math::Random(); |
|
53 <a name="l00047"></a>00047 console->Printf(KTxtInt,value); |
|
54 <a name="l00048"></a>00048 User::LeaveIfError(myProperty.Set(value)); |
|
55 <a name="l00049"></a>00049 } |
|
56 <a name="l00050"></a>00050 |
|
57 <a name="l00051"></a>00051 <span class="comment">// Free the handle to the property</span> |
|
58 <a name="l00052"></a>00052 myProperty.Close(); |
|
59 <a name="l00053"></a>00053 |
|
60 <a name="l00054"></a>00054 <span class="comment">// The publisher has finished so delete the property</span> |
|
61 <a name="l00055"></a>00055 User::LeaveIfError(RProperty::Delete(KMyPropertyCat,KMyPropertyName)); |
|
62 <a name="l00056"></a>00056 } |
|
63 <a name="l00057"></a>00057 |
|
64 <a name="l00058"></a><a class="code" href="publishpe_8cpp.html#a0f358e9c4355138f629b8c4f37310295">00058</a> GLDEF_C TInt E32Main() |
|
65 <a name="l00059"></a>00059 { |
|
66 <a name="l00060"></a>00060 __UHEAP_MARK; |
|
67 <a name="l00061"></a>00061 CTrapCleanup* cleanup = CTrapCleanup::New(); |
|
68 <a name="l00062"></a>00062 |
|
69 <a name="l00063"></a>00063 TRAPD(createError, console = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen))); |
|
70 <a name="l00064"></a>00064 <span class="keywordflow">if</span> (createError) |
|
71 <a name="l00065"></a>00065 <span class="keywordflow">return</span> createError; |
|
72 <a name="l00066"></a>00066 |
|
73 <a name="l00067"></a>00067 TRAPD(mainError, DoExampleL()); |
|
74 <a name="l00068"></a>00068 <span class="keywordflow">if</span> (mainError) |
|
75 <a name="l00069"></a>00069 console->Printf(KTextFailed, mainError); |
|
76 <a name="l00070"></a>00070 console->Printf(KTextPressAnyKey); |
|
77 <a name="l00071"></a>00071 console->Getch(); |
|
78 <a name="l00072"></a>00072 |
|
79 <a name="l00073"></a>00073 <span class="keyword">delete</span> console; |
|
80 <a name="l00074"></a>00074 <span class="keyword">delete</span> cleanup; |
|
81 <a name="l00075"></a>00075 __UHEAP_MARKEND; |
|
82 <a name="l00076"></a>00076 <span class="keywordflow">return</span> KErrNone; |
|
83 <a name="l00077"></a>00077 } |
|
84 </pre></div></div> |
|
85 <hr size="1"/><address style="text-align: right;"><small>Generated by |
|
86 <a href="http://www.doxygen.org/index.html"> |
|
87 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address> |
|
88 </body> |
|
89 </html> |