Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_basic_timer_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/Base/Timers/BasicTimer/BasicTimer.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">// Show how RTimer, the basic timer class, works</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#include "CommonFramework.h"</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="keywordtype">void</span> showTimeL(TTime aTime)
<a name="l00021"></a>00021 {
<a name="l00022"></a>00022 <span class="comment">// Format time, using system default locale settings</span>
<a name="l00023"></a>00023 <span class="comment">// and then print the time using system default time</span>
<a name="l00024"></a>00024 <span class="comment">// separator character (':') in 24 hour clock format.</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 TBuf<40> timeString; <span class="comment">// Holds the formatted date and time</span>
<a name="l00027"></a>00027 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormat1,<span class="stringliteral">"%:0%H%:1%T%:2%S%:3"</span>);
<a name="l00028"></a>00028 aTime.FormatL(timeString,KFormat1);
<a name="l00029"></a>00029 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormat2,<span class="stringliteral">"(24 hr clock) = %S\n"</span>);
<a name="l00030"></a>00030 console->Printf(KFormat2, &timeString);
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="keywordtype">void</span> WaitForKey()
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtPressAnyKey,<span class="stringliteral">"Press any key to continue\n\n"</span>);
<a name="l00037"></a>00037 console->Printf(KTxtPressAnyKey);
<a name="l00038"></a>00038 console->Getch();
<a name="l00039"></a>00039 }
<a name="l00040"></a>00040
<a name="l00041"></a>00041
<a name="l00042"></a>00042 LOCAL_C <span class="keywordtype">void</span> doExampleL()
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 RTimer timer; <span class="comment">// The asynchronous timer and ...</span>
<a name="l00045"></a>00045 TRequestStatus timerStatus; <span class="comment">// ... its associated request status</span>
<a name="l00046"></a>00046 timer.CreateLocal(); <span class="comment">// Always created for this thread.</span>
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="comment">// do some After() requests</span>
<a name="l00049"></a>00049 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxt1,<span class="stringliteral">"Doing 10 after requests\n"</span>);
<a name="l00050"></a>00050 console->Printf(KTxt1);
<a name="l00051"></a>00051 <span class="keywordflow">for</span> (TInt i=0; i<10; i++)
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="comment">// issue and wait for single request</span>
<a name="l00054"></a>00054 timer.After(timerStatus,1000000); <span class="comment">// wait 1 second</span>
<a name="l00055"></a>00055 User::WaitForRequest(timerStatus); <span class="comment">// wait for request to complete</span>
<a name="l00056"></a>00056 <span class="comment">// display the tick count</span>
<a name="l00057"></a>00057 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormat3,<span class="stringliteral">"Request count %d\n"</span>);
<a name="l00058"></a>00058 console->Printf(KFormat3, i);
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060
<a name="l00061"></a>00061 WaitForKey(); <span class="comment">// wait until a key is pressed</span>
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="comment">// do an At() request</span>
<a name="l00064"></a>00064 TTime time; <span class="comment">// time in microseconds since 0AD nominal Gregorian</span>
<a name="l00065"></a>00065 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxt2,<span class="stringliteral">"The time now is, "</span>);
<a name="l00066"></a>00066 console->Printf(KTxt2);
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="comment">// set and print current time</span>
<a name="l00069"></a>00069 time.HomeTime();
<a name="l00070"></a>00070 showTimeL(time);
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="comment">// add 10 seconds to the time</span>
<a name="l00073"></a>00073 TTimeIntervalSeconds timeIntervalSeconds(10);
<a name="l00074"></a>00074 time += timeIntervalSeconds;
<a name="l00075"></a>00075 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxt3,<span class="stringliteral">"Doing a request ten seconds from now at, "</span>);
<a name="l00076"></a>00076 console->Printf(KTxt3);
<a name="l00077"></a>00077 showTimeL(time); <span class="comment">// print the time the request should complete</span>
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="comment">// issue and wait for single request.</span>
<a name="l00080"></a>00080 <span class="comment">// set timer to go off in 10 seconds</span>
<a name="l00081"></a>00081 timer.At(timerStatus,time);
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="comment">// wait for request to complete</span>
<a name="l00084"></a>00084 User::WaitForRequest(timerStatus);
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="comment">// say it's over, and set and print the time again</span>
<a name="l00087"></a>00087 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxt4,<span class="stringliteral">"Your 10 seconds are up\nThe time now is, "</span>);
<a name="l00088"></a>00088 console->Printf(KTxt4);
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="comment">// set time to now</span>
<a name="l00091"></a>00091 time.HomeTime();
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="comment">// print the time</span>
<a name="l00094"></a>00094 showTimeL(time);
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="comment">// close timer</span>
<a name="l00097"></a>00097 timer.Close();
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
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