--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/sit/src/sit.cpp	Thu Dec 17 09:14:51 2009 +0200
@@ -0,0 +1,202 @@
+/*
+* Copyright (c) 2006 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: Socket Interaction Thread implementation.
+*
+*/
+
+
+
+#include <e32math.h>
+#include "sit.h"
+#include "sitdeathobserver.h"
+#include "taskarrivalobserver.h"
+#include "taskhandlercreator.h"
+#include "log.h"
+
+// Exports
+
+EXPORT_C CSit::CSit(MSitDeathListener* aSitDeathListener)
+    : iTaskThread(NULL), iSitDeathListener(aSitDeathListener)
+    {
+    LOG(Log::Printf(_L("CSit::CSit\n")));
+    }
+
+EXPORT_C CSit::~CSit()
+    {
+    LOG(Log::Printf(_L("CSit::~CSit\n")));
+    delete iSitDeathObserver;
+    
+    if (iTaskThread != NULL)
+        {
+        LOG(Log::Printf(_L("CSit::~CSit - closing task thread\n")));
+        iTaskThread->Close();
+        }
+    delete iTaskThread;
+    }
+
+EXPORT_C void CSit::StartL()
+    {
+    LOG(Log::Printf(_L("CSit::StartL\n")));
+
+    // Only start the thread if it is not already running
+    if (!iTaskThread)
+        {
+        LOG(Log::Printf(_L("CSit::StartL - thread not running, starting it\n")));
+        StartThreadL();
+        }
+    }
+    
+EXPORT_C TThreadId CSit::ThreadId()
+    {
+    if (iTaskThread)
+        {
+        return iTaskThread->Id();
+        }
+    else
+        {
+        return 0;
+        }
+    }
+
+EXPORT_C TBool CSit::EventRequiresSit(TEventType aEventType)
+    {
+    return TaskHandlerCreator::EventRequiresSit(aEventType);
+    }
+
+EXPORT_C TEventType CSit::FindTaskRequestEventType(TEventType aCancelEventType)
+    {
+    return TaskHandlerCreator::FindTaskRequestEventType(aCancelEventType);
+    }
+    
+EXPORT_C TEventType CSit::FindCancelEventType(TEventType aTaskRequestEventType)
+    {
+    return TaskHandlerCreator::FindCancelEventType(aTaskRequestEventType);
+    }
+
+EXPORT_C TBool CSit::IsTaskCancellationObservationRequest(TEventType aEventType)
+    {
+    return TaskHandlerCreator::IsTaskCancellationObservationRequest(aEventType);
+    }
+
+// Internals    
+
+
+void CSit::StartThreadL()
+    {
+    LOG(Log::Printf(_L("CSit::StartThreadL\n")));
+    TName threadName(KSitName);
+    
+    iTaskThread = new (ELeave) RThread;
+    
+    TInt ret = iTaskThread->Create(threadName,
+                                   ThreadFunction,
+                                   KDefaultStackSize,
+                                   KMinHeapSize,
+                                   KSitMaxHeapSize,
+                                   this,
+                                   EOwnerProcess);
+
+    LOG(Log::Printf(_L("CSit::StartThreadL - iTaskThread->Create returned %d\n"), ret));
+    User::LeaveIfError(ret);
+
+    iSitDeathObserver = new (ELeave) CSitDeathObserver(iTaskThread->Id(), this);
+    iSitDeathObserver->StartObservingL();
+    
+    iTaskThread->Resume();
+    }
+
+TInt CSit::ThreadFunction(TAny* aParameters)
+    {
+    LOG(Log::Printf(_L("CSit::ThreadFunction - begin\n")));
+    __UHEAP_MARK;
+    
+    CTrapCleanup* cleanup = CTrapCleanup::New();
+    
+    TInt ret = KErrNoMemory;
+    
+    if (cleanup)
+        {
+        CSit* const sit = STATIC_CAST(CSit*, aParameters);
+        TRAP(ret, sit->StartWorkingL());
+        delete cleanup;
+        }
+    
+    __UHEAP_MARKEND;
+
+    LOG(Log::Printf(_L("CSit::ThreadFunction - end\n")));
+    return ret;
+    }
+
+void CSit::StartWorkingL()
+    {
+    LOG(Log::Printf(_L("CSit::StartWorkingL - begin\n")));
+    // Create and install the active scheduler we need
+    CActiveScheduler* scheduler = new(ELeave) CActiveScheduler;
+    CleanupStack::PushL(scheduler);
+    CActiveScheduler::Install(scheduler);
+    
+    // Create the task arrival observer active object
+    CTaskArrivalObserver* taskArrivalObserver = CTaskArrivalObserver::NewL();
+    CleanupStack::PushL(taskArrivalObserver);
+
+    // Start observing task arrivals
+    taskArrivalObserver->Start();
+
+    // Start running active objects
+    CActiveScheduler::Start();
+
+    // Cleanup the task handler and scheduler
+    CleanupStack::PopAndDestroy(2); // taskArrivalObserver, scheduler
+
+    LOG(Log::Printf(_L("CSit::StartWorkingL - end\n")));
+    }
+
+void CSit::SitDied()
+    {
+    LOG(Log::Printf(_L("CSit::SitDied\n")));
+    
+    if (iTaskThread != NULL)
+        {
+        iTaskThread->Close();
+        delete iTaskThread;
+        iTaskThread = NULL;
+
+        iSitDeathListener->SitDied();
+
+        // We must delete the observer object as well.
+        // With this, the StartThreadL method works
+        // correctly as it creates a new observer.
+        delete iSitDeathObserver;
+        iSitDeathObserver = NULL;
+        }
+    }
+
+HBufC16* CSit::To16BitL(const TDesC8& aDes)
+    {
+    HBufC16* desCopy;
+    
+    TInt desLength = aDes.Length();
+    
+    if (desLength > 0)
+        {
+        desCopy = HBufC16::NewL(desLength);
+        desCopy->Des().Copy(aDes);
+        }
+    else
+        {
+        desCopy = HBufC16::NewL(1);
+        }
+
+    return desCopy;
+    }