TB10.1 Example Applications: examples/Base/IPC/ClientServer/Complex/ComplexClient.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 //
-00015 
-00016 
-00017 #include "ComplexClientAndServer.h"
-00018 #include "ComplexClient.h"
-00019 #include "CommonFramework.h"
-00020 
-00021 
-00022 
-00035 LOCAL_C void doExampleL()
-00036         {
-00037         _LIT(KTxtTestingCountServer,"Testing the count server test with 2 client subsessions; these represent independent counters \n\n");
-00038         _LIT(KTxtInitCounterAWith,"\nInitialize counter A with : ");
-00039         _LIT(KTxtInitCounterBWith,"\nInitialize counter B with : ");
-00040         _LIT(KTxtInitCounterFailed,"\nSetting the counter from string failed: non-numeric character detected\n");
-00041         _LIT(KTxtInitCounterSucceeded,"\nSetting the counter from string succeededd\n");
-00042     _LIT(KTxtGetCounterAValue,"Getting counterA value from server: %d \n");
-00043     _LIT(KTxtGetCounterBValue,"Getting counterB value from server: %d \n");     
-00044     _LIT(KMsgPressAnyKey," (press any key to continue)\n");
-00045           // Useful integer variable.
-00046         TInt ret;
-00047                         
-00048           // Say that we are testing the count server.
-00049         console->Printf(KTxtTestingCountServer);
-00050         
-00051           // This is our handle to the server.
-00052     RCountSession countserv;
-00053 
-00054           // Connect to the count server, starting it up if we need to 
-00055           // (which in this example we do need to).
-00056           // This creates a session with the server.
-00057         User::LeaveIfError(countserv.Connect());
-00058         
-00059 
-00060           // Set up the first subsession with the count server.
-00061           // We need to pass our handle to the server.
-00062         RCountSubSession counterA;
-00063         counterA.Open(countserv);
-00064         console->Printf(KTxtInitCounterAWith);
-00065         
-00066         
-00067       // Initialise the counter by passing an illegal string - this 
-00068       // should fail - but we will check anyway before reporting
-00069       // a failure.
-00070         _LIT(KTxtIllegalString,"2a");
-00071         console->Printf(KTxtIllegalString);
-00072         ret = counterA.SetFromString(KTxtIllegalString);
-00073         if (ret==ENonNumericString)
-00074             {
-00075                 console->Printf(KTxtInitCounterFailed);
-00076             }
-00077         else
-00078             {
-00079             console->Printf(KTxtInitCounterSucceeded);  
-00080             }
-00081         
-00082                 
-00083           // Set up the second subsession with the count server.
-00084           // We need to pass our handle to the server.
-00085         RCountSubSession counterB;
-00086         counterB.Open(countserv);
-00087         console->Printf(KTxtInitCounterBWith);
-00088         
-00089         
-00090       // Initialise the counter by passing a legal string.
-00091         _LIT(KTxtLegalString,"100");
-00092         console->Printf(KTxtLegalString);
-00093         ret = counterB.SetFromString(KTxtLegalString);
-00094         if (ret==ENonNumericString)
-00095             {
-00096                 console->Printf(KTxtInitCounterFailed);
-00097             }
-00098         else
-00099             {
-00100             console->Printf(KTxtInitCounterSucceeded);  
-00101             }
-00102             
-00103         console->Printf(KMsgPressAnyKey);
-00104         console->Getch();
-00105         console->ClearScreen();
-00106         
-00107   
-00108           // Now get the initial values back from the server.
-00109           // The 1st subsession should have a default value (because we initialised it with an illegal value).
-00110           // The 2nd subsession should have the value we specified (because we initialised it witha legal value).
-00111         console->Printf(KTxtGetCounterAValue,counterA.CounterValue());  
-00112         console->Printf(KTxtGetCounterBValue,counterB.CounterValue()); 
-00113         
-00114 
-00115                 // Increase CounterA by the default value
-00116         _LIT(KTxt1,"\nIncrease counterA by default value (i.e. 1)..\n");
-00117         console->Printf(KTxt1);
-00118         counterA.Increase();
-00119         console->Printf(KTxtGetCounterAValue,counterA.CounterValue());  
-00120 
-00121                 // Increase CounterA by 2
-00122         _LIT(KTxt2,"\nIncrease counterA by 2..\n");
-00123         console->Printf(KTxt2);
-00124         counterA.IncreaseBy(2);
-00125         console->Printf(KTxtGetCounterAValue,counterA.CounterValue());  
-00126         
-00127           // Increase CounterB by the default value
-00128     _LIT(KTxt3,"\nIncrease counterB by default value (i.e. 1)..\n");
-00129         console->Printf(KTxt3);
-00130         counterB.Increase();
-00131         console->Printf(KTxtGetCounterBValue,counterB.CounterValue());  
-00132         
-00133       // Increase CounterA by 7 
-00134         _LIT(KTxt4,"\nIncrease counterA by 7..\n");
-00135         console->Printf(KTxt4);
-00136         counterA.IncreaseBy(7);
-00137     console->Printf(KTxtGetCounterAValue,counterA.CounterValue());      
-00138         
-00139           // Increase CounterB by 5     
-00140         _LIT(KTxt5,"\nIncrease counterB by 5..\n");
-00141         console->Printf(KTxt5);
-00142         counterB.IncreaseBy(5);
-00143     console->Printf(KTxtGetCounterBValue,counterB.CounterValue());      
-00144         
-00145           // Decrease CounterA by the default value
-00146         _LIT(KTxt6,"\nDecrease counterA..\n");
-00147         console->Printf(KTxt6);
-00148         counterA.Decrease();
-00149     console->Printf(KTxtGetCounterAValue,counterA.CounterValue());      
-00150    
-00151       // Decrease CounterB by 3
-00152         _LIT(KTxt7,"\nDecrease counterB by 3..\n");
-00153         console->Printf(KTxt7);
-00154         counterB.DecreaseBy(3);
-00155         console->Printf(KTxtGetCounterBValue,counterB.CounterValue());          
-00156 
-00157       // Show the number of resources in use.
-00158         _LIT(KTxt8,"\nResource count is.. %d \n");
-00159     console->Printf(KTxt8,countserv.ResourceCount());
-00160 
-00161                 //close both subsessions
-00162                 
-00163         _LIT(KTxt9,"\nClosing counterA and then CounterB..\n");
-00164         console->Printf(KTxt9);
-00165         counterA.Close();
-00166         counterB.Close();
-00167         
-00168 
-00169           // Close the sesssion with the count server.
-00170         countserv.Close();
-00171         
-00172           // NB in this example, it is possible to close the session before closing the 
-00173           // subsessions. This is because the subsessions are themsleves closed as a
-00174           // consequence of closing the session - also the subsessions offer a simple
-00175           // (almost trivial) synchronous service.
-00176           // In more complex cases, you would need to think through the consequences
-00177           // of closing a session, while a subsession is sill open.
-00178         }
-00179 
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