examples/SFExamples/Symbian_OS_Explained_Hercules-v9_Example_Code/src/asynchandler.cpp

// 
// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
// 
// Initial Contributors:
// Nokia Corporation - initial contribution.
// 
// Contributors:
// 
// Description:
// 
// asynchandler.cpp
// Skeleton active object, for asynchronous server requests

#include <e32base.h>
#include "server.h"

CAsyncHandler* CAsyncHandler::NewL()
        {
        CAsyncHandler* me = CAsyncHandler::NewLC();
        CleanupStack::Pop(me);
        return (me);
        }

CAsyncHandler* CAsyncHandler::NewLC()
        {
        CAsyncHandler* me = new (ELeave) CAsyncHandler();
        CleanupStack::PushL(me);
        me->ConstructL();
        return (me);
        }

CAsyncHandler::~CAsyncHandler()
        {
        Cancel();
        iTimer.Close(); 
        }

CAsyncHandler::CAsyncHandler()
: CActive(EPriorityStandard) 
        { 
        CActiveScheduler::Add(this); 
        }

void CAsyncHandler::ConstructL()
        {
        User::LeaveIfError(iTimer.CreateLocal());
        }

void CAsyncHandler::ServiceAsyncRequest(const RMessage2& aMessage)
        {// Only allow one request to be submitted at a time
        _LIT(KOutstandingRequestPanic, "InUse");
        __ASSERT_ALWAYS(!IsActive(), User::Panic(KOutstandingRequestPanic, KErrInUse));
        iMessage = aMessage;
        iTimer.After(iStatus, 2000000); // Set the RTimer to expire in 2 seconds
        SetActive(); // Mark this object active 
        }

void CAsyncHandler::DoCancel()
        {
        iTimer.Cancel();
        iMessage.Complete(KErrCancel);
        }

void CAsyncHandler::RunL()
        {
        iMessage.Complete(iStatus.Int());
        }

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