examples/Base/ThreadsAndProcesses/Rendezvous/ThreadRendezvous.cpp

00001 /*
00002 Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
00003 
00004 Redistribution and use in source and binary forms, with or without
00005 modification, are permitted provided that the following conditions are met:
00006 
00007 * Redistributions of source code must retain the above copyright notice, this
00008   list of conditions and the following disclaimer.
00009 * Redistributions in binary form must reproduce the above copyright notice,
00010   this list of conditions and the following disclaimer in the documentation
00011   and/or other materials provided with the distribution.
00012 * Neither the name of Nokia Corporation nor the names of its contributors
00013   may be used to endorse or promote products derived from this software
00014   without specific prior written permission.
00015 
00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00017 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00018 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00019 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00020 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00021 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00022 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00023 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00024 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00025 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00026 
00027 Description: Example to demonstrate the use of Rendezvous() with threads   
00028 */
00029 
00030 
00031 
00032 #include "CommonFramework.h"
00033 #include <e32math.h>
00034 
00035 //
00036 // Common literal text
00037 //
00038 
00039 
00040 _LIT(KMsgMyThreadName, "MyThread");
00041 _LIT(KMsgStartThread, "Start thread\n");
00042 _LIT(KMsgThreadRendezvousReached,"Thread rendezvous reached\n");
00043 _LIT(KMsgEndOfTest,"End of test\n");
00044 _LIT(KMsgSomethingIsWrong, "Something is wrong\n");
00045 _LIT(KMsgCreateThreadFailed, "Create thread failed\n");
00046 
00047 //Define
00048 const TInt KHeapSize = 0x2000;
00049 
00050 //************************************************************
00051 // Declare Thread functions
00052 //************************************************************
00053 TInt MyThread(TAny* aParameter)
00054         {
00055                 // simulate some processing
00056         User::After((TInt)aParameter);          
00057                         
00058                         // signal Rendezvous
00059         RThread::Rendezvous(KErrNone);
00060         
00061                 // simulate some processing
00062         User::After((TInt)aParameter);          
00063         
00064         return(KErrNone);
00065         }
00066 
00067 //************************************************************
00068 // Main example code function
00069 //************************************************************
00070 LOCAL_C void doExampleL()
00071         {                                 
00072                 // create threads to wait for
00073         RThread thread;
00074 
00075                 // indicate completion status
00076         TRequestStatus myThreadRendezvousStatus;
00077 
00078                 // pass 500 as the parameter to MyThread                
00079         TInt r=thread.Create(KMsgMyThreadName, MyThread, KDefaultStackSize, KHeapSize,KHeapSize,(TAny*) 2000000, EOwnerThread); 
00080         if (r!=KErrNone)
00081                 {       
00082                 console->Printf(KMsgCreateThreadFailed);
00083                 return;
00084                 }
00085                 // create rendezvous
00086         thread.Rendezvous(myThreadRendezvousStatus);
00087 
00088                 //EXCECUTE THREAD!
00089         console->Printf(KMsgStartThread);                                       
00090         thread.Resume();
00091 
00092         User::WaitForRequest(myThreadRendezvousStatus);
00093         if(myThreadRendezvousStatus==KErrNone)
00094                 {
00095                 console->Printf(KMsgThreadRendezvousReached);
00096                 }
00097                 else
00098                 {
00099                 console->Printf(KMsgSomethingIsWrong);  
00100                 }       
00101                 
00102         thread.Close();
00103         console->Printf(KMsgEndOfTest);         
00104         
00105         }
00106 
00107 
00108         
00109 
00110 
00111 
00112         
00113         

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