TB10.1 Example Applications: examples/Base/Timers/BasicTimer/BasicTimer.cpp Source File

00001 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
-00002 // All rights reserved.
-00003 // This component and the accompanying materials are made available
-00004 // under the terms of "Eclipse Public License v1.0"
-00005 // which accompanies this distribution, and is available
-00006 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
-00007 //
-00008 // Initial Contributors:
-00009 // Nokia Corporation - initial contribution.
-00010 //
-00011 // Contributors:
-00012 //
-00013 // Description:
-00014 // Show how RTimer, the basic timer class, works
-00015 //
-00016 
-00017 #include "CommonFramework.h"
-00018 
-00019 
-00020 void showTimeL(TTime aTime)
-00021         {
-00022                 // Format time, using system default locale settings
-00023                 // and then print the time using system default time
-00024                 // separator character (':') in 24 hour clock format.
-00025 
-00026         TBuf<40> timeString; // Holds the formatted date and time
-00027         _LIT(KFormat1,"%:0%H%:1%T%:2%S%:3");
-00028         aTime.FormatL(timeString,KFormat1);
-00029         _LIT(KFormat2,"(24 hr clock) = %S\n");
-00030         console->Printf(KFormat2, &timeString);
-00031         }
-00032 
-00033 
-00034 void WaitForKey()
-00035         {
-00036         _LIT(KTxtPressAnyKey,"Press any key to continue\n\n");
-00037         console->Printf(KTxtPressAnyKey);
-00038         console->Getch();
-00039         }
-00040 
-00041 
-00042 LOCAL_C void doExampleL()
-00043     {
-00044         RTimer timer;                            // The asynchronous timer and ...
-00045         TRequestStatus timerStatus;  // ... its associated request status
-00046         timer.CreateLocal();         // Always created for this thread.
-00047 
-00048                 // do some After() requests
-00049         _LIT(KTxt1,"Doing 10 after requests\n");
-00050         console->Printf(KTxt1);
-00051         for (TInt i=0; i<10; i++)
-00052                 {
-00053                         // issue and wait for single request
-00054                 timer.After(timerStatus,1000000);  // wait 1 second
-00055                 User::WaitForRequest(timerStatus); // wait for request to complete
-00056                         // display the tick count
-00057                 _LIT(KFormat3,"Request count %d\n");
-00058                 console->Printf(KFormat3, i);
-00059                 }
-00060 
-00061     WaitForKey(); // wait until a key is pressed
-00062 
-00063                 // do an At() request
-00064         TTime time; // time in microseconds since 0AD nominal Gregorian
-00065         _LIT(KTxt2,"The time now is, ");
-00066         console->Printf(KTxt2);
-00067                 
-00068                 // set and print current time
-00069         time.HomeTime(); 
-00070         showTimeL(time); 
-00071                 
-00072                 // add 10 seconds to the time
-00073         TTimeIntervalSeconds timeIntervalSeconds(10);
-00074         time += timeIntervalSeconds;
-00075         _LIT(KTxt3,"Doing a request ten seconds from now at, ");
-00076         console->Printf(KTxt3);
-00077         showTimeL(time); // print the time the request should complete
-00078                 
-00079                 // issue and wait for single request.
-00080                 // set timer to go off in 10 seconds
-00081         timer.At(timerStatus,time); 
-00082         
-00083            // wait for request to complete
-00084         User::WaitForRequest(timerStatus); 
-00085                 
-00086                 // say it's over, and set and print the time again
-00087         _LIT(KTxt4,"Your 10 seconds are up\nThe time now is, ");
-00088         console->Printf(KTxt4);
-00089         
-00090            // set time to now
-00091         time.HomeTime(); 
-00092         
-00093            // print the time
-00094         showTimeL(time); 
-00095                 
-00096                 // close timer
-00097         timer.Close();
-00098         }
-00099 
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