/*

* 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:

* Name          : CProxyResolvingQueue.h

* Part of       : ProxyResolver

* Version       : SIP/4.0 

*

*/

/**

 @internalComponent

*/

#ifndef CPROXYRESOLVINGQUEUE_H

#define CPROXYRESOLVINGQUEUE_H

// INCLUDES

#include <e32base.h>

// FORWARD DECLARATIONS

class CProxyQuery;

const TUint KMinProxyResolveRequestId=1;

const TUint KMaxProxyResolveRequestId=KMaxTUint;

class CProxyResolvingQueue : public CBase

    {

public:

    static CProxyResolvingQueue* NewL();

    static CProxyResolvingQueue* NewLC();

    ~CProxyResolvingQueue ();

    // add a query

    void AddQuery( CProxyQuery& aQuery );

    // get next query

    CProxyQuery* NextQuery();

    // get next query which is opened

    CProxyQuery* NextReadyQuery();

    // detach this query from the queue (but do not delete)

    void DetachByRequestId( TUint aRequestId ); 

    // remove this query from the queue (and delete)

    void DeleteByRequestId( TUint aRequestId ); 

    // get ID for the next request

    TUint NextRequestId();

private:

    CProxyResolvingQueue();

    void ConstructL();

    CProxyQuery* FindQueryByRequestId( TUint aRequestId );

private: // Data

    TSglQue< CProxyQuery > iList;

    TSglQueIter< CProxyQuery > iListIter;    

    TUint iNextRequestId;

private:

    #ifdef CPPUNIT_TEST

        friend class CProxyResolvingQueueTest;

    #endif

    };

#endif // CPROXYRESOLVINGQUEUE_H

// End of File