--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/sit/src/taskhandler.cpp	Thu Dec 17 09:14:51 2009 +0200
@@ -0,0 +1,194 @@
+/*
+* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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: Base class for all task handlers.
+*
+*/
+
+
+
+#include "taskhandler.h"
+#include "log.h"
+
+CTaskHandler::CTaskHandler(MTaskHandlerManager* aManager, const TTaskArrivedEventData& aTaskInfo,
+                           TEventType aCancelEventType, TDes8* aEventSpecPtr)
+    : CActive(EPriorityNormal), iManager(aManager), iTaskInfo(aTaskInfo),
+      iCancelEventType(aCancelEventType), iEventSpecPtr(aEventSpecPtr)
+    {
+    LOG(Log::Printf(_L("CTaskHandler::CTaskHandler - iCancelEventType = %d\n"), iCancelEventType));
+    }
+
+void CTaskHandler::Start()
+    {
+    LOG(Log::Printf(_L("CTaskHandler::Start\n")));
+    // First fetch the event specification of the
+    // task request that we are supposed to fulfill
+    TPckg<TTaskArrivedEventData> taskInfoDes(iTaskInfo);
+    iEventMediator.ListenToEvent(EFetchTaskInfoEvent, taskInfoDes, *this);
+    // Operation continues from CTaskHandler::EventOccured
+    // that calls StartTaskHandlingL if all goes well
+    }
+
+void CTaskHandler::RunL()
+    {
+    ChangeStateL();
+    }
+
+void CTaskHandler::GotoState(TInt aState)
+    {
+    SetNextState(aState);
+    SetActive();
+    TRequestStatus* status = &iStatus;
+    User::RequestComplete(status, KErrNone);
+    }
+    
+void CTaskHandler::SetCurrState(TInt aState)
+    {
+    iCurrState = aState;
+    }
+
+void CTaskHandler::SetNextState(TInt aState)
+    {
+    iNextState = aState;
+    }
+
+TInt CTaskHandler::CurrState()
+    {
+    return iCurrState;
+    }
+
+TInt CTaskHandler::NextState()
+    {
+    return iNextState;
+    }
+
+void CTaskHandler::DoCancel()
+    {
+    LOG(Log::Printf(_L("CTaskHandler::DoCancel\n")));
+    // Cancel listening to the task cancellation
+    iEventMediator.CancelListening(iCancelEventType, *iEventSpecPtr);
+
+    CancelOngoingOperation();
+            
+    TaskDone();
+    }
+
+TInt CTaskHandler::RunError(TInt aError)
+    {
+    LOG(Log::Printf(_L("CTaskHandler::RunError - error = %d\n"), aError));
+    TaskComplete(aError);
+    return KErrNone;
+    }
+
+void CTaskHandler::EventOccured(TInt aStatus, TEventType aType, TDesC8* aData)
+    {
+    LOG(Log::Printf(_L("CTaskHandler::EventOccured\n")));
+    if (aType == EFetchTaskInfoEvent)
+        {
+        OnFetchTaskInfoEvent(aStatus, aData);
+        }
+    else if (aType == iCancelEventType)
+        {
+        OnTaskRequestCancelledEvent(aStatus);
+        }
+    else
+        {
+        User::Panic(KSitName, EPanicUnexpectedEventOccured);
+        }
+    }
+
+void CTaskHandler::OnFetchTaskInfoEvent(TInt aStatus, TDesC8* aData)
+    {
+    LOG(Log::Printf(_L("CTaskHandler::OnFetchTaskInfoEvent\n")));
+    if (aStatus == KErrNone && aData)
+        {
+        // Copy the task request event specification
+        // so that the actual task handler can start using it
+        iEventSpecPtr->Copy(*aData);
+        
+        // Listen to the cancellation of this task
+        iEventMediator.ListenToEvent(iCancelEventType, *iEventSpecPtr, *this);
+        
+        StartTaskHandling();
+        }
+    else if (aStatus == KErrNotFound)
+        {
+        // The task request was cancelled before 
+        // we had the change to get its data
+        TaskDone();
+        }
+    else
+        {
+        FatalError(aStatus);
+        }
+    }
+
+void CTaskHandler::OnTaskRequestCancelledEvent(TInt aStatus)
+    {
+    LOG(Log::Printf(_L("CTaskHandler::OnTaskRequestCancelledEvent\n")));
+    if (aStatus == KErrNone)
+        {
+        // Event Mediator tells that the task request
+        // has been cancelled so we stop performing the task
+        Cancel();
+        }
+    else if (aStatus != KErrCancel)
+        {
+        FatalError(aStatus);
+        }
+    }
+
+void CTaskHandler::TaskComplete(TInt aError)
+    {
+    LOG(Log::Printf(_L("CTaskHandler::TaskComplete - aError = %d\n"), aError));
+    // Cancel listening to the task cancellation
+    iEventMediator.CancelListening(iCancelEventType, *iEventSpecPtr);
+
+    ReportResult(aError);
+    }
+    
+void CTaskHandler::ReportEvent(TEventType aEventType, TDesC8& aEventSpec, TDesC8& aEventData)
+    {
+    LOG(Log::Printf(_L("CTaskHandler::ReportEvent - aEventType = %d\n"), aEventType));
+    TInt ret = iEventMediator.ReportEvent(aEventType, aEventSpec, aEventData);
+
+    if (ret != KErrNone)
+        {
+        FatalError(ret);
+        }
+    else
+        {
+        TaskDone();
+        }
+    }
+
+void CTaskHandler::TaskDone()
+    {
+    LOG(Log::Printf(_L("CTaskHandler::TaskDone\n")));
+    if (!iDelayedTaskEnd)
+        {
+        LOG(Log::Printf(_L("CTaskHandler::TaskDone - calling iManager->TaskHandlerComplete\n")));
+        iManager->TaskHandlerComplete(this);
+        }
+    }
+
+void CTaskHandler::FatalError(TInt aError)
+    {
+    LOG(Log::Printf(_L("CTaskHandler::FatalError - error = %d\n"), aError));
+    iManager->TaskHandlerFatalError(this, aError);
+    }
+
+void CTaskHandler::SetDelayedTaskEnd(TBool aDelayedTaskEnd)
+    {
+    iDelayedTaskEnd = aDelayedTaskEnd;
+    }