sl@0: // Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // e32test\active\t_idle.cpp
sl@0: // Overview:
sl@0: // Test the CIdle class. A CIdle and CTimer run on the same active scheduler and
sl@0: // the test displays how their callback function and RunL respectively are called.
sl@0: // API Information:
sl@0: // CIdle 
sl@0: // Details:
sl@0: // - Create and install active scheduler.
sl@0: // - Create and start a timer, add this to the active scheduler, request an event
sl@0: // after a specified interval. The timer will reschedule itself for a finite
sl@0: // number of times, then it will cancel the CIdle object and then reschedule
sl@0: // itself again and eventually it will stop the active scheduler.
sl@0: // - Create a CIdle active object, start a background task that is encapsulated in
sl@0: // callback function. The CIdle will keep reschedule itself by always returning
sl@0: // TRUE from the callback.
sl@0: // - Output some text from timer's RunL and CIdle's callback to show when they are
sl@0: // called and how they interleave.
sl@0: // Platforms/Drives/Compatibility:
sl@0: // All.
sl@0: // Assumptions/Requirement/Pre-requisites:
sl@0: // Failures and causes:
sl@0: // Base Port information:
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32test.h>
sl@0: 
sl@0: enum {EIdlePriority=1000,EMoreIdlePriority=800};
sl@0: 
sl@0: class CMyRequestManager : public CActiveScheduler
sl@0: 	{
sl@0: public:
sl@0: 	virtual void Error(TInt anError) const;
sl@0: 	};
sl@0: 
sl@0: class CMyTimer : public CTimer
sl@0: 	{
sl@0: public:
sl@0: 	static CMyTimer* New();
sl@0: 	void Start();
sl@0: 	virtual void RunL();
sl@0: protected:
sl@0: 	CMyTimer(TInt aPriority);
sl@0: private:
sl@0: 	enum {EMaxCount=10,EStopCount=5,ETimeReq=100000};
sl@0: 	TInt iCount;
sl@0: 	};
sl@0: 
sl@0: LOCAL_D RTest test(_L("T_IDLE"));
sl@0: LOCAL_D CIdle* MoreIdle;
sl@0: LOCAL_D TInt TheCount=0;
sl@0: 
sl@0: void CMyRequestManager::Error(TInt anError) const
sl@0: //
sl@0: // Called if any Run() method leaves.
sl@0: //
sl@0: 	{
sl@0: 
sl@0: 	test.Panic(anError,_L("CMyRequestManager::Error"));
sl@0: 	}
sl@0: 
sl@0: CMyTimer* CMyTimer::New()
sl@0: //
sl@0: // Create a new CMyTimer.
sl@0: //
sl@0: 	{
sl@0: 
sl@0: 	return(new CMyTimer(EIdlePriority));
sl@0: 	}
sl@0: 
sl@0: CMyTimer::CMyTimer(TInt aPriority)
sl@0: //
sl@0: // Constructor
sl@0: //
sl@0: 	: CTimer(aPriority),iCount(0)
sl@0: 	{}
sl@0: 
sl@0: void CMyTimer::Start()
sl@0: //
sl@0: // The timer has completed.
sl@0: //
sl@0: 	{
sl@0: 
sl@0: 	TRAPD(r, ConstructL());
sl@0: 	test(r==KErrNone);
sl@0: 	CActiveScheduler::Add(this);
sl@0: 	After(ETimeReq);
sl@0: 	}
sl@0: 
sl@0: void CMyTimer::RunL()
sl@0: //
sl@0: // The timer has completed.
sl@0: //
sl@0: 	{
sl@0: 
sl@0: 	iCount++;
sl@0: 	test.Printf(_L("Timer %03d\n"),iCount);
sl@0: 	if (iCount==EStopCount)
sl@0: 		MoreIdle->Cancel();
sl@0: 	if (iCount<EMaxCount)
sl@0: 		After(ETimeReq);
sl@0: 	else
sl@0: 		{
sl@0: 		test.Printf(_L("\n"));
sl@0: 		DoCancel();
sl@0: 		CActiveScheduler::Stop();
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: TInt IdleResponse(TAny*)
sl@0: //
sl@0: //	Respond to the idle callback
sl@0: //
sl@0: 	{
sl@0: 
sl@0: 	test.Printf(_L("\rIdle response number : %6d "),++TheCount);
sl@0: 	return(TRUE);
sl@0: 	}
sl@0: 
sl@0: TInt IdleCancel(TAny*)
sl@0: //
sl@0: //	Cancel the other idle object
sl@0: //
sl@0: 	{
sl@0: 
sl@0: 	if (TheCount>9)
sl@0: 		{
sl@0: 		MoreIdle->Cancel();
sl@0: 		return(FALSE);
sl@0: 		}
sl@0: 	return(TRUE);
sl@0: 	}
sl@0: 		
sl@0: GLDEF_C TInt E32Main()
sl@0: //
sl@0: // Test idle objects.
sl@0: //
sl@0:     {
sl@0: 	
sl@0: 	test.Title();
sl@0: 	test.Start(_L("Testing idle object cancellation"));
sl@0: //
sl@0: 	CMyRequestManager* pR=new CMyRequestManager;
sl@0: 	test(pR!=NULL);
sl@0: 	CActiveScheduler::Install(pR);
sl@0: //
sl@0: 	CMyTimer* pT=CMyTimer::New();
sl@0: 	pT->Start();
sl@0: 	MoreIdle=CIdle::New(EIdlePriority);
sl@0: 	MoreIdle->Start(&IdleResponse);
sl@0: 	CActiveScheduler::Start();	
sl@0: //
sl@0: 	test.End();
sl@0: 	return(0);
sl@0:     }
sl@0: