// Copyright (c) 2006-2009 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_APIEXT_REGISTER.CPP

// 

//

#include <ecom/ecom.h>

#include "sd_std.h"

#include "sd_apiextension.h"

#include "sd_apiextensionregister.h"

#include <e32base.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_ElemSvrDenApiXRC, "ElemSvrDenApiXRC");

#endif

using namespace Den;

//using namespace Messages;

TInt CompareApiExtIdentifications(const TApiExtIdentification& aExtItfId1, const TApiExtIdentification& aExtItfId2)

	{

	return Mem::Compare(aExtItfId1.Ptr(), sizeof(TInt)+sizeof(TInt), aExtItfId2.Ptr(), sizeof(TInt)+sizeof(TInt));

	}

TApiExtRegister::~TApiExtRegister()

	{

	//We should not have anything to cleanup here.

	//Every session and subsession must close all

	//remaining extensions from their destructors.

	__ASSERT_DEBUG(iApiExtList.Count()==0, User::Panic(KSpecAssert_ElemSvrDenApiXRC, 1)); //Panic in debug

	iApiExtList.Close();

	}

void TApiExtRegister::CleanupInterfaceRegistration(TAny* aSelf)

	{

	TApiExtRegister* reg = static_cast<TApiExtRegister*>(aSelf);

	__ASSERT_DEBUG(reg->iClenupInfoExtItfId, User::Panic(KSpecAssert_ElemSvrDenApiXRC, 2)); //We have just added..

	TLinearOrder<TApiExtIdentification> order(CompareApiExtIdentifications);

	TInt index = reg->iApiExtList.FindInOrder(*reg->iClenupInfoExtItfId, order);

	__ASSERT_DEBUG(index!=KErrNotFound, User::Panic(KSpecAssert_ElemSvrDenApiXRC, 3)); //We have just added..

	reg->iApiExtList.Remove(index);

	}

void TApiExtRegister::CleanupInterfaceDeregistrationPushL(const TApiExtIdentification& aExtItfId)

	{

	//Never call this fn twice without a Pop() in between

	TLinearOrder<TApiExtIdentification> order(CompareApiExtIdentifications);

	TInt index = iApiExtList.FindInOrder(aExtItfId, order);

	__ASSERT_DEBUG(index!=KErrNotFound, User::Panic(KSpecAssert_ElemSvrDenApiXRC, 4)); //We have just added..

	iClenupInfoExtItfId = &iApiExtList[index];

	CleanupStack::PushL(TCleanupItem(TApiExtRegister::CleanupInterfaceRegistration, this));

	}

void TApiExtRegister::RegisterOpenInterfaceLC(const TApiExtIdentification& aExtItfId)

	{

	//Never call this fn twice without a Pop() in between

	TLinearOrder<TApiExtIdentification> order(CompareApiExtIdentifications);

	TInt index = iApiExtList.FindInOrder(aExtItfId, order);

	User::LeaveIfError(index!=KErrNotFound? KErrAlreadyExists : KErrNone);

	iApiExtList.InsertInOrderL(aExtItfId, order);

	CleanupInterfaceDeregistrationPushL(aExtItfId);

	}

void TApiExtRegister::DeregisterClosedInterface(const TApiExtIdentification& aExtItfId)

	{

	TLinearOrder<TApiExtIdentification> order(CompareApiExtIdentifications);

	TInt index = iApiExtList.FindInOrder(aExtItfId, order);

	__ASSERT_DEBUG(index!=KErrNotFound, User::Panic(KSpecAssert_ElemSvrDenApiXRC, 5)); //UDEB

	if (index!=KErrNotFound)

		{

		iApiExtList.Remove(index);

		}

	}

TBool TApiExtRegister::IsOpened(const TApiExtIdentification& aExtItfId)

	{

	TLinearOrder<TApiExtIdentification> order(CompareApiExtIdentifications);

	return KErrNotFound==iApiExtList.FindInOrder(aExtItfId, order)?

		EFalse : ETrue;

	}

const TApiExtIdentification& TApiExtRegister::operator[](TInt aIndex)

	{

	__ASSERT_DEBUG(aIndex>=0 && aIndex<iApiExtList.Count(), User::Panic(KSpecAssert_ElemSvrDenApiXRC, 6));

	return iApiExtList[aIndex];

	}