// Copyright (c) 2005-2009 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:

// ss_connstates.cpp

// 

//

#include "ss_subconn.h"

#include "ss_subconnstates.h"

#include <comms-infras/ss_log.h>

#include <comms-infras/ss_coreprstates.h>

#include <comms-infras/ss_corepractivities.h>

#include <comms-infras/ss_esockactivities.h>

#include "ss_subconn.h"

#include "SS_conn.H"

#include <ss_glob.h>

#include <comms-infras/ss_nodemessages_subconn.h>

#include <comms-infras/ss_nodemessages_rejoiningprovider.h>

#include <comms-infras/ss_nodemessages_dataclient.h>

#include <elements/nm_messages_peer.h>

#ifdef _DEBUG

// Panic category for "absolutely impossible!" vanilla ASSERT()-type panics from this module

// (if it could happen through user error then you should give it an explicit, documented, category + code)

_LIT(KSpecAssert_ESockSSocksbcnst, "ESockSSocksbcnst");

#endif

using namespace ESock;

using namespace SubSessActivities;

using namespace Messages;

using namespace MeshMachine;

#ifdef _DEBUG

_LIT (KCSubConnectionPanic,"CSubConnectionPanic");

#endif

//-=========================================================

//

//

//States

//

//

//-=========================================================

//-=========================================================

// Build stack

//-=========================================================

DEFINE_SMELEMENT(SubConnStates::TAwaitingBuildStackResponse, NetStateMachine::MState, SubConnStates::TContext)

TBool SubConnStates::TAwaitingBuildStackResponse::Accept()

	{

	return iContext.iMessage.IsMessage<TCFInternalEsock::TBuildStackResponse>();

	}

DEFINE_SMELEMENT(SubConnStates::TSendBuildStack, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSendBuildStack::DoL()

	{

    // The flow request parameters are stored within the subconnection node

    RCFParameterFamilyBundleC subConnectionParameters = iContext.Node().iParameterBundle;

	// Send build stack to ourself to kick off a stack building activity

	iContext.iNodeActivity->PostRequestTo( iContext.Node().Id(),

	    TCFInternalEsock::TBuildStackRequest(subConnectionParameters).CRef());

	}

DEFINE_SMELEMENT(SubConnActivities::CBuildStack::TAwaitingBuildStack, NetStateMachine::MState, SubConnActivities::CBuildStack::TContext)

TBool SubConnActivities::CBuildStack::TAwaitingBuildStack::Accept()

	{

	return iContext.iMessage.IsMessage<TCFInternalEsock::TBuildStackRequest>();

	}

DEFINE_SMELEMENT(SubConnActivities::CNoBearer::TStoreFlowParams, NetStateMachine::MStateTransition, SubConnActivities::CNoBearer::TContext)

void SubConnActivities::CNoBearer::TStoreFlowParams::DoL()

	{

	// Store the received flow params in the activity

	TCFControlProvider::TNoBearer& noBearerMessage = message_cast<TCFControlProvider::TNoBearer>(iContext.iMessage);

    SubConnActivities::CNoBearer* noBearerActivity = static_cast<SubConnActivities::CNoBearer*>(iContext.iNodeActivity);

	noBearerActivity->SetFlowRequestParameters(noBearerMessage.iFamilyBundle);

	}

//-=========================================================

//Create

//-=========================================================

DEFINE_SMELEMENT(SubConnStates::TJoinCPR, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TJoinCPR::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    if (iContext.Node().ControlProvider().ServiceProvider() == NULL)

        {

        User::Leave(KErrNotReady);

        }

    iContext.Node().AddClientL(iContext.Node().ControlProvider().ServiceProvider()->RecipientId(), TClientType(TCFClientType::EServProvider));

    iContext.iNodeActivity->PostRequestTo(*iContext.Node().ControlProvider().ServiceProvider(),

        TCFServiceProvider::TJoinRequest(iContext.NodeId(), TCFClientType::ECtrl).CRef());

	}

DEFINE_SMELEMENT(SubConnStates::TRequestServiceProvider, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TRequestServiceProvider::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    // The flow request parameters are stored within the activity itself

    SubConnActivities::CNoBearer* noBearerActivity = static_cast<SubConnActivities::CNoBearer*>(iContext.iNodeActivity);

    RCFParameterFamilyBundleC flowParams = noBearerActivity->GetFlowRequestParameters();

	// Send our service provider a comms binder carrying the necessary flow request parameters

    iContext.iNodeActivity->PostRequestTo(

		*iContext.Node().ServiceProvider(),

        TCFServiceProvider::TCommsBinderRequest(

			TSubConnOpen::ECreateNew,

			flowParams

			).CRef()

		);

	}

DEFINE_SMELEMENT(SubConnStates::TLeaveCPR, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TLeaveCPR::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    __ASSERT_DEBUG(iContext.Node().ControlProvider().ServiceProvider() != NULL, User::Panic(KSpecAssert_ESockSSocksbcnst, 1));

#ifdef _DEBUG

    TInt count = iContext.Node().CountClients<TDefaultClientMatchPolicy>(TClientType(TCFClientType::EServProvider), TClientType(0, TCFClientType::EActive));

	// Now the subconn had joined SCPR, and CPR. The relationship between subconn and CPR is temporary and 

	// should be terminate here in this transition. So in here make sure there's ONLY 1 SP inactive and 

	// that's supposed to be the CPR, any other cases are wrong

    __ASSERT_DEBUG(count == 1, User::Panic(KCSubConnectionPanic, KPanicNoServiceProvider));

#endif

	// Find the SP which is not EActive because EActive is not set on the CPR's flag in the first place

    RNodeInterface * cpr = iContext.Node().GetFirstClient<TDefaultClientMatchPolicy>(TClientType(TCFClientType::EServProvider), TClientType(0, TCFClientType::EActive));

    iContext.iNodeActivity->PostRequestTo(*cpr, TEPeer::TLeaveRequest().CRef());

    cpr->SetFlags(TCFClientType::ELeaving);

	}

//-=========================================================

//Rejoin

//-=========================================================

DEFINE_SMELEMENT(SubConnStates::TJoinTheOtherOwner, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TJoinTheOtherOwner::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    SubConnActivities::CRejoin* rejoinActivity = static_cast<SubConnActivities::CRejoin*>(iContext.iNodeActivity);

    rejoinActivity->InitialiseL(iContext.Node());

	//MZTODO: activity using this transition - and possibly the whole approach - must be redesigned

	//so that all destinations are safe! (used to be: TCtrlClientJoinRequestUnsafeDst).

    rejoinActivity->SetOldOwnerIntf(iContext.Node().AddClientL(rejoinActivity->TheOtherOwner(), TClientType(TCFClientType::EServProvider)));

	iContext.iNodeActivity->ClearPostedTo();

    RClientInterface::OpenPostMessageClose(iContext.NodeId(), rejoinActivity->TheOtherOwner(),

    	TCFServiceProvider::TJoinRequest(iContext.NodeId(), TClientType(TCFClientType::ECtrl)).CRef());

	}

DEFINE_SMELEMENT(SubConnStates::TLeaveTheOtherOwner, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TLeaveTheOtherOwner::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    SubConnActivities::CRejoin* rejoinActivity = static_cast<SubConnActivities::CRejoin*>(iContext.iNodeActivity);

    RClientInterface::OpenPostMessageClose(iContext.NodeId(), rejoinActivity->TheOtherOwner(),

    	TEPeer::TLeaveRequest().CRef());

	rejoinActivity->OldOwnerIntf()->SetFlags(ESock::TCFClientType::ELeaving);

	}

DEFINE_SMELEMENT(SubConnStates::TSendRejoinDataClientRequestToOldOwner, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSendRejoinDataClientRequestToOldOwner::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    SubConnActivities::CRejoin* rejoinActivity = static_cast<SubConnActivities::CRejoin*>(iContext.iNodeActivity);

    RClientInterface::OpenPostMessageClose(iContext.NodeId(), rejoinActivity->OldOwner(),

    	TCFRejoiningProvider::TRejoinDataClientRequest(rejoinActivity->Flow(), rejoinActivity->NewOwner()).CRef());

	}

DEFINE_SMELEMENT(SubConnStates::TSendApplyToOldOwner, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSendApplyToOldOwner::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    SubConnActivities::CRejoin* rejoinActivity = static_cast<SubConnActivities::CRejoin*>(iContext.iNodeActivity);

    RClientInterface::OpenPostMessageClose(iContext.NodeId(), rejoinActivity->OldOwner(),

    	TCFScpr::TApplyRequest().CRef());

	}

DEFINE_SMELEMENT(SubConnStates::TSendApplyToNewOwner, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSendApplyToNewOwner::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    SubConnActivities::CRejoin* rejoinActivity = static_cast<SubConnActivities::CRejoin*>(iContext.iNodeActivity);

    RClientInterface::OpenPostMessageClose(iContext.NodeId(), rejoinActivity->NewOwner(),

    	TCFScpr::TApplyRequest().CRef());

	}

DEFINE_SMELEMENT(SubConnStates::TSendCancelToOldOwner, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSendCancelToOldOwner::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    SubConnActivities::CRejoin* rejoinActivity = static_cast<SubConnActivities::CRejoin*>(iContext.iNodeActivity);

    RClientInterface::OpenPostMessageClose(iContext.NodeId(), rejoinActivity->OldOwner(),

    	TEBase::TCancel().CRef());

	}

//-=========================================================

//SetParameters

//-=========================================================

DEFINE_SMELEMENT(SubConnStates::TSendParamsToServiceProvider, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSendParamsToServiceProvider::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

	SubConnActivities::CSetParameters& setParamsActivity =

	    static_cast<SubConnActivities::CSetParameters&>(*iContext.iNodeActivity);

    if (iContext.Node().SubConnType() == RSubConnection::EAttachToDefault)

      {

      // SubConnections opened with EAttachToDefault require the NetworkControl capability for changing QoS

      setParamsActivity.HasCapabilityL (ECapabilityNetworkControl, "CSubConnection::SetParametersL(): EAttachToDefault requires NetworkControl");

      }

#ifdef SYMBIAN_ADAPTIVE_TCP_RECEIVE_WINDOW

	iContext.iNodeActivity->PostRequestTo(*iContext.Node().ServiceProvider(),

	    TCFScpr::TSetParamsRequest(setParamsActivity.GetParameterBundleL()).CRef());

#else

	iContext.iNodeActivity->PostRequestTo(*iContext.Node().ServiceProvider(),

	    TCFScpr::TParamsRequest(setParamsActivity.GetParameterBundleL()).CRef());

#endif // SYMBIAN_ADAPTIVE_TCP_RECEIVE_WINDOW

	}

DEFINE_SMELEMENT(SubConnStates::TStoreParams, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TStoreParams::DoL()

	{

#ifdef SYMBIAN_ADAPTIVE_TCP_RECEIVE_WINDOW

	TCFScpr::TSetParamsResponse& paramResponse = message_cast<TCFScpr::TSetParamsResponse>(iContext.iMessage);

#else

	TCFScpr::TParamsResponse& paramResponse = message_cast<TCFScpr::TParamsResponse>(iContext.iMessage);

#endif // SYMBIAN_ADAPTIVE_TCP_RECEIVE_WINDOW

	if(! iContext.Node().iParameterBundle.IsNull())

    	{

		iContext.Node().iParameterBundle.Close();

    	}

    iContext.Node().iParameterBundle.Open(paramResponse.iFamilyBundle);

	}

DEFINE_SMELEMENT(SubConnStates::TSendParamRequest, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSendParamRequest::DoL()

    {

    __ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KSpecAssert_ESockSSocksbcnst, 2));

    __ASSERT_DEBUG(iContext.Node().ServiceProvider(), User::Panic(KSpecAssert_ESockSSocksbcnst, 3));

#ifdef SYMBIAN_ADAPTIVE_TCP_RECEIVE_WINDOW

	iContext.iNodeActivity->PostRequestTo(*iContext.Node().ServiceProvider(),

  	    TCFScpr::TSetParamsRequest(iContext.Node().iParameterBundle).CRef());

#else

	iContext.iNodeActivity->PostRequestTo(*iContext.Node().ServiceProvider(),

  	    TCFScpr::TParamsRequest(iContext.Node().iParameterBundle).CRef());

#endif // SYMBIAN_ADAPTIVE_TCP_RECEIVE_WINDOW

    }

DEFINE_SMELEMENT(SubConnStates::TNoTagOrParamsPresent, NetStateMachine::MStateFork, SubConnStates::TContext)

TInt SubConnStates::TNoTagOrParamsPresent::TransitionTag()

    {

    return iContext.Node().iParameterBundle.IsNull() ? MeshMachine::KNoTag : PRStates::KParamsPresent;

    }

DEFINE_SMELEMENT(SubConnStates::TWriteSubConnParamsLength, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TWriteSubConnParamsLength::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

	__ASSERT_DEBUG( ! iContext.Node().iParameterBundle.IsNull() , User::Panic(KSpecAssert_ESockSSocksbcnst, 4));

	CESockClientActivityBase& esockActivity =

	    static_cast<CESockClientActivityBase&>(*iContext.iNodeActivity);

	//I know!!

	esockActivity.SetError(iContext.Node().iParameterBundle.IsNull() ? KErrNotReady : (TInt) iContext.Node().iParameterBundle.Length() );

	}

DEFINE_SMELEMENT(SubConnStates::TWriteSubConnParams, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TWriteSubConnParams::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

	__ASSERT_DEBUG(! iContext.Node().iParameterBundle.IsNull() , User::Panic(KSpecAssert_ESockSSocksbcnst, 5));	

	CESockClientActivityBase& esockActivity =

	    static_cast<CESockClientActivityBase&>(*iContext.iNodeActivity);

	RCFParameterFamilyBundleC& pfb = iContext.Node().iParameterBundle;

	pfb.CheckOpenL();

	RBuf8 buffer;

	buffer.CreateL(pfb.Length());

	CleanupClosePushL(buffer);

	User::LeaveIfError(pfb.Store(buffer));

	#ifdef ESOCK_LOGGING_ACTIVE

		if(esockActivity.GetDesMaxLengthL(0) < buffer.Length())

			{

			LOG(ESockLog::Printf(_L("ESock: SubConnStates[%x]\tTWriteSubConnParams: client supplied buffer of size %d is too small to store parameter bundle of size %d"), this, esockActivity.GetDesMaxLengthL(0), buffer.Length()));

			}

	#endif

	esockActivity.WriteL(0, buffer);

	CleanupStack::PopAndDestroy();	// buffer

	}

//-=========================================================

//Events

//-=========================================================

DEFINE_SMELEMENT(SubConnStates::TAwaitingEventNotificationSubscription, NetStateMachine::MState, SubConnStates::TContext)

TBool SubConnStates::TAwaitingEventNotificationSubscription::Accept()

	{

    if (subsessmessage_cast<ESCEventNotificationSetup>(&iContext.iMessage) ||

        subsessmessage_cast<ESCEventAllNotifications>(&iContext.iMessage))

        {

        return ETrue;

        }

    return EFalse;

	}

DEFINE_SMELEMENT(SubConnStates::TNoTagOrAllNotifications, NetStateMachine::MStateFork, SubConnStates::TContext)

TInt SubConnStates::TNoTagOrAllNotifications::TransitionTag()

	{

    if (subsessmessage_cast<ESCEventAllNotifications>(&iContext.iMessage))

        {

        return ESCEventAllNotifications;

        }

    return MeshMachine::KNoTag;

	}

DEFINE_SMELEMENT(SubConnStates::TSetupFilteredEventNotification, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSetupFilteredEventNotification::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

	SubConnActivities::CEventNotification& eventNotificationActivity =

	    static_cast<SubConnActivities::CEventNotification&>(*iContext.iNodeActivity);

    eventNotificationActivity.RequestEventNotificationSetupL();

	}

DEFINE_SMELEMENT(SubConnStates::TSetupAllEventNotification, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TSetupAllEventNotification::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

	SubConnActivities::CEventNotification& eventNotificationActivity =

	    static_cast<SubConnActivities::CEventNotification&>(*iContext.iNodeActivity);

    eventNotificationActivity.RequestAllEventNotificationsL();

	}

DEFINE_SMELEMENT(SubConnStates::TFillInEvent, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TFillInEvent::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

	SubConnActivities::CEventNotification& eventNotificationActivity =

	    static_cast<SubConnActivities::CEventNotification&>(*iContext.iNodeActivity);

	if (iContext.iMessage.IsMessage<TCFSubConnControlClient::TSubConnNotification>())

    	{

        TEnqueueEvent enqueueEvent(iContext);

        enqueueEvent.DoL();

    	}

    CRefCountOwnedSubConNotification* eventRefCountOwner = NULL;

    TBool eventConsumed = EFalse;

    while (iContext.Node().iEventQueue.Deque(eventRefCountOwner))

        {

        __ASSERT_DEBUG(eventRefCountOwner && eventRefCountOwner->Ptr(), User::Panic(KSpecAssert_ESockSSocksbcnst, 6));

        eventConsumed = eventNotificationActivity.FillInEvent(*eventRefCountOwner->Ptr());

        eventRefCountOwner->Close();

        if (eventConsumed)

            {

            break;

            }

        }

	}

DEFINE_SMELEMENT(SubConnStates::TEnqueueEvent, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TEnqueueEvent::CreateOrUpdateBundleL(CSubConGenEventParamsGranted* aEvent)

    {

	RCFParameterFamilyBundleC& myBundle = iContext.Node().GetOrCreateParameterBundleL();

     RParameterFamily family=myBundle.FindFamily(KSubConQoSFamily);

	 if ( family.IsNull() )

        {

       	RCFParameterFamilyBundle newBundle;

		newBundle.CreateL();

		newBundle.Open(myBundle);

		family = newBundle.CreateFamilyL(KSubConQoSFamily);

        //family = myBundle.CreateFamilyL(KSubConQoSFamily); //PJLEFT

        newBundle.Close();

        }

	 family.ClearAllParameters (RParameterFamily::EGranted);

     CSubConGenericParameterSet* origGeneric = const_cast<CSubConGenericParameterSet*>(aEvent->GetGenericSet());

     if (origGeneric)

        {

        // A copy must be used because parameters owned by the event will be destructed

        // along with it.

        CSubConGenericParameterSet* copyGeneric = static_cast<CSubConGenericParameterSet*>(CSubConGenericParameterSet::NewL (origGeneric->GetTypeId()));

        CleanupStack::PushL (copyGeneric);

        copyGeneric->Copy (*origGeneric);

        family.AddParameterSetL (copyGeneric, RParameterFamily::EGranted);

        CleanupStack::Pop (copyGeneric);

        }

     TInt max = aEvent->GetNumExtensionSets();

     for (TInt i=0; i<max; i++)

        {

        CSubConExtensionParameterSet* origExtension = const_cast<CSubConExtensionParameterSet*>(aEvent->GetExtensionSet (i));

        CSubConExtensionParameterSet* copyExtension = static_cast<CSubConExtensionParameterSet*>(CSubConExtensionParameterSet::NewL(origExtension->GetTypeId()));

        CleanupStack::PushL (copyExtension);

        copyExtension->Copy (*origExtension);

        family.AddParameterSetL(copyExtension, RParameterFamily::EGranted);

        CleanupStack::Pop (copyExtension);

        }

    }

void SubConnStates::TEnqueueEvent::DoL()

	{

	TCFSubConnControlClient::TSubConnNotification& eventMsg = message_cast<TCFSubConnControlClient::TSubConnNotification>(iContext.iMessage);

	__ASSERT_DEBUG(eventMsg.iRefCountOwnedSubConNotification, User::Panic(KSpecAssert_ESockSSocksbcnst, 7));

	__ASSERT_DEBUG(eventMsg.iRefCountOwnedSubConNotification->Ptr(), User::Panic(KSpecAssert_ESockSSocksbcnst, 8));

	iContext.Node().iEventQueue.Enque(eventMsg.iRefCountOwnedSubConNotification);

    const CSubConNotificationEvent* event = eventMsg.iRefCountOwnedSubConNotification->Ptr();

	//If param related event - update the params.

    if (event->GroupId() == KSubConnGenericEventsImplUid

      && (event->Id() == KSubConGenericEventParamsGranted

         || event->Id() == KSubConGenericEventParamsChanged))

        {

        CreateOrUpdateBundleL(const_cast<CSubConGenEventParamsGranted*>(static_cast<const CSubConGenEventParamsGranted*>(event)));

        }

	}

DEFINE_SMELEMENT(SubConnStates::TNoTagOrActiveWhenEventEnqued, NetStateMachine::MStateFork, SubConnStates::TContext)

TInt SubConnStates::TNoTagOrActiveWhenEventEnqued::TransitionTag()

	{

	if (!iContext.Node().iEventQueue.IsEmpty())

    	{

    	return KActiveTag;

    	}

    return MeshMachine::KNoTag;

	}

//-=========================================================

//Start/Stop Connection

//-=========================================================

DEFINE_SMELEMENT(SubConnStates::TStartSubConnection, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TStartSubConnection::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    if (iContext.Node().ServiceProvider() == NULL)

        {

        User::Leave(KErrNotReady);

        }

    iContext.iNodeActivity->PostRequestTo(*iContext.Node().ServiceProvider(),

        TCFServiceProvider::TStart().CRef());

	}

DEFINE_SMELEMENT(SubConnStates::TStopSubConnection, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TStopSubConnection::DoL()

	{

	__ASSERT_DEBUG(iContext.iNodeActivity, User::Panic(KCSubConnectionPanic,KPanicNoActivity));

    if (iContext.Node().ServiceProvider() == NULL)

        {

        iContext.iNodeActivity->SetIdle();

        }

    else

        {

        iContext.iNodeActivity->PostRequestTo(*iContext.Node().ServiceProvider(),

            TCFServiceProvider::TStop(KErrCancel).CRef());

        }

	}

//-=========================================================

//Close

//-=========================================================

DEFINE_SMELEMENT(SubConnStates::TDetachControlProvider, NetStateMachine::MStateTransition, SubConnStates::TContext)

void SubConnStates::TDetachControlProvider::DoL()

	{

   	TClientIter<TDefaultClientMatchPolicy> iter = iContext.Node().GetClientIter<TDefaultClientMatchPolicy>(TClientType(TCFClientType::ECtrlProvider));

	if (iter[0])

    	{

#if defined(__GCCXML__)

    	CConnection& conn = *reinterpret_cast<CConnection*>(&(iter[0]->RecipientId().Node()));

#else

    	CConnection& conn = mcfnode_cast<CConnection>(iter[0]->RecipientId().Node());

#endif

    	iContext.Node().RemoveClient(conn.Id());

    	conn.RemoveClient(iContext.NodeId());

    	}

	}

//-=========================================================

//

//

//Activities

//

//

//-=========================================================

//-=========================================================

//CNoBearer

//-=========================================================

MeshMachine::CNodeActivityBase* SubConnActivities::CNoBearer::NewL(const MeshMachine::TNodeActivity& aActivitySig, MeshMachine::AMMNodeBase& aNode)

    {

    SubConnActivities::CNoBearer* noBearerActivity = new SubConnActivities::CNoBearer(aActivitySig, aNode);

    if (noBearerActivity == NULL)

        {

    	User::Leave(KErrNoMemory);

        }

    return noBearerActivity;

    }

SubConnActivities::CNoBearer::~CNoBearer()

    {

    //Destroy the subconnection if the ownership hasn't been released!