/*

* Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Map of callback and transaction id.

*

*/

#ifndef __SYSINFOKCALLBACKMAP_H__

#define __SYSINFOKCALLBACKMAP_H__

//FORWARD DECLARATION

class MLiwNotifyCallback;

/**

* CSysInfoCallbackMap

* This class keeps a map of the transaction id allocated to an asynchronous 

* request with the callback of the request.

*/

// CLASS DECLARATION

NONSHARABLE_CLASS(CSysInfoCallbackMap): public CBase

    {

    public:// Constructors

    /**

    * CSysInfoCallbackMap

    * Constructor.

    *

    * @param aTransactionId The transaction id alloted to asynchronous request.

    * @param aCallback The callback associated with the asynchronous request.

    */

    inline CSysInfoCallbackMap( TInt32 aTransactionId, 

                                    MLiwNotifyCallback* aCallback );

    /**

    * ~CSysInfoCallbackMap

    * Destructor.

    */

    inline ~CSysInfoCallbackMap() {}

    public:

    /**

    * Set

    * Sets the transaction id and callback.

    *

    * @param aTransactionId The transaction id alloted to asynchronous request.

    * @param aCallback The callback associated with the asynchronous request.

    */

    inline void Set( TInt32 aTransactionId, MLiwNotifyCallback* aCallback );

    /**

    * Get

    * Gets the transaction id and callback.

    *

    * @param aTransactionId The transaction id alloted to asynchronous request.

    * @param aCallback The reference to the callback associated with the asynchronous request.

    * @return True if aCallback is set else False.

    */

    inline TBool Get( TInt32 aTransactionId, MLiwNotifyCallback*& aCallback) const;

    private:// Data

    /**

    * iTransactionId

    * The transaction id of the async call.

    */

    TInt32 iTransactionId;

    /**

    * iCallback

    * The handle to MLiwNotifyCallback.

    */

    MLiwNotifyCallback* iCallback;

    };

#include "sysinfocallbackmap.inl"

#endif // __SYSINFOKCALLBACKMAP_H__