/*

* Copyright (c) 2004,2006 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:  RAU manager

*

*/

#ifndef CAOCONNECTIONIMPL_H

#define CAOCONNECTIONIMPL_H

// INCLUDE FILES

#include <e32base.h>

#include <commdbconnpref.h>

#include <es_sock.h>

#include <commdb.h>

#include "maoconnectionmanager.h"

// FORWARD DECLARATIONS

class MAOSettings;

class CCommsDatabase;

class MAOConnectionObserver;

/**

 *  Connection implementation.

 *  @see CAOConnection

 *

 *  @lib PDPContextManager.lib

 *  @since S60 v3.1

 */

NONSHARABLE_CLASS( CAOConnectionImpl ): public CActive

    {

private: // Data types

    /**

     * Internal state bit

     */

    enum TInternalState

        {

        EDisconnected,

        EOpeningLink,

        EListeningAccessPoint

        };

public: // Constructors & destructors

    /**

     * Two-phased constructor.

     *

     * @since S60 v3.1

     * @param aObserver ?

     * @param aSettings ?

     * @param aSocketServ ?

     * @return ?

     */

    static CAOConnectionImpl* NewL( MAOConnectionObserver& aObserver,

                                    MAOSettings&           aSettings,

                                    RSocketServ*           aSocketServ );

    /**

     * Default destructor

     *

     * @since S60 v3.1

     */

    virtual ~CAOConnectionImpl();

    /**

     * Starts a new connection if none exists.

     *

     * @since S60 v3.1

     */ 

    void ActivateConnection();

    /**

     * Cancels any outstanding connections.

     *

     * @since S60 v3.1

     */

    void CancelConnection();

    /**

     * Checks if there is already a connection ongoing.

     *

     * @since S60 v3.1

     * @return ETrue if there is connection

     */ 

    TBool IsConnectedToDefaultIAP();

    /**

     * Returns number of ongoing connections.

     *

     * @since 3.0

     * @return TInt

     */ 

    TInt NumberOfConnections();

    /**

     * Closes connection (detaches) without stopping it.

     *

     * @since 3.2

     * @return void

     */ 

    void CloseConnection();

private: // New methods

    /**

    * Default constructor.

    * @param aObserver ?

    * @param aSettings ?

    * @param aSocketServ ?

    */

    CAOConnectionImpl( MAOConnectionObserver& aObserver,

                       MAOSettings&           aSettings,

                       RSocketServ*           aSocketServ );

    /**

    * Default Symbian constructor

    */

    void ConstructL();

    /**

     * Checks if current IAP is valid

     *

     * @since S60 v3.1

     * @param aId ?

     * @return ?

     */

    TBool IsValidIAP( TUint32 aId ) const;

    /**

     * Complete self

     *

     * @since S60 v3.1

     * @param aStatus ?

     * @param aReason ?

     */     

    void CompleteSelf( TRequestStatus& aStatus, TInt aReason );

    /**

     * Handle method for EOpeningLink state

     *

     * @since S60 v3.1

     * @param aStatus ?

     */

    void HandleOpeningLinkL( TInt aStatus );

    /**

     * Handle method for EListeningAccessPoint state

     *

     * @since S60 v3.1

     * @param aStatus ?

     */

    void HandleListeningAccessPointL( TInt aStatus );

    /**

     * Change state

     *

     * @since S60 v3.1

     * @param aNewState ?

     */

    void ChangeState( TInternalState aNewState );

    /**

     * Issue progress notification

     *

     * @since S60 v3.1

     */

    void IssueProgressNotification();

    /**

     * Sends 'disconnected' error

     *

     * @since S60 v3.1

     * @param aError ?

     */

    void BrodcastDisconnectedError( TInt aError );

    /**

     * Sends 'activation failed' error

     *

     * @since S60 v3.1

     * @param aError ?

     */

    void BrodcastActivationFailedError( TInt aError );

    /**

     * Converts error code to failure reason

     *

     * @since S60 v3.1

     * @param aError ?

     * @return ?

     */

    MAOConnectionManager::TFailureReason FailureReason( TInt aError );

    /**

     * Activates self

     *

     * @since S60 v3.1

     * @param aCode ?

     */

    void ActivateSelf( TInt aCode );

    /**

     * Stops connection

     *

     * @since S60 v3.1

     */

    void StopConnection();

// From base classes CActive

    /**

     * From CActive

     * ?

     *

     * @since S60 v3.1

     */

    void RunL();

    /**

     * From CActive

     * ?

     *

     * @since S60 v3.1

     */

    void DoCancel();

    /**

     * From CActive

     * ?

     *

     * @since S60 v3.1

     * @param aError ?

     * @return ?

     */     

    TInt RunError( TInt aError );

private: // Data

    /**

     * Ref: Connection observer

     */

    MAOConnectionObserver& iObserver;

    /**

     * Ref: Settings

     */

    MAOSettings& iSettings;

    /**

     * Not Own: Socket server session

     */

    RSocketServ* iSocketServ;

    /**

     * Own: Connection

     */

    RConnection iConnection;

    /**

     * Own: Progress notification buffer

     */

    TNifProgressBuf iProgressBuf;

    /**

     * Own: Internal state flag

     */

    TInternalState iState;

    /**

     * Own: Access point settings

     */

    TCommDbConnPref iAccessPointSettings;

    /**

     * Own: Comms database

     */

    CCommsDatabase* iCommsDatabase;

    };

#endif /* CAOCONNECTIONIMPL_H */