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/*
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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* Main implementation of Wlan Sniffer Keepalive application.
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*/
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#ifndef WSFKEEPALIVE_H
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#define WSFKEEPALIVE_H
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// System includes
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// User includes
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#include "wsfkeepalivetimer.h"
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// Forward declarations
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class CWsfKeepaliveCmm;
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class CWsfKeepaliveConnMon;
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class CWsfKeepaliveConnMonDisc;
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class CWsfKeepaliveEsock;
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// External data types
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// Global function prototypes
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// Constants
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// Class declaration
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/**
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* Main implementation of Wlan Sniffer Keepalive application.
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*
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* This class contains the actual application logic, which monitors
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* Wlan connections and keeps them alive, if needed.
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*/
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class CWsfKeepalive : public CBase, public MWsfKeepaliveTimerNotify
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{
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// Friend classes:
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friend class CWsfKeepaliveTestSuite;
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public:
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// Data types
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// Constants
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/** Invalid/not available connection ID */
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static const TUint KInvalidConnectionId = 0;
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/** Constructors */
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/**
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* Two-phased constructor.
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*
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* @return New object allocated from heap
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*/
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static CWsfKeepalive* NewL();
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/**> Destructor */
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virtual ~CWsfKeepalive();
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public:
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/**
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* Timer expiration handler. Disconnects the monitored connection,
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* if needed. Restarts timer, if needed.
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*
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* @param aError Status of the timer event
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*/
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void TimerExpired( TInt aError );
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/**
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* Wlan connection event handler. Shares and starts to monitor the
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* opened connection, if necessary.
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*
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* @param aConnectionId ID of the opened connection
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* @param aIapId IAP ID of the opened connection
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*/
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void WlanConnectionOpenedL( TUint aConnectionId, TUint aIapId );
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/**
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* Wlan connection event handler. Stops monitoring the connection.
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*/
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void WlanConnectionClosed();
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protected:
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private:
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CWsfKeepalive();
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void ConstructL();
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TBool OpenedByWlanSniffer( TUint aConnectionId );
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TBool NoRealClients( TUint aConnectionId );
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void SetState( TUint aState );
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private: // Data
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// Constants
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/**
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* State values for the keepalive implementation
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*/
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enum
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{
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/** Not monitoring any connection */
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EInactive,
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/** Monitoring connection, which has no real clients */
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EActiveNoClients,
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/** Monitoring connection, which has one or more real clients */
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EActiveWithClients
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};
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/**
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* Timer for polling users of a connection
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*/
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CWsfKeepaliveTimer* iTimer;
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/**
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* Connection Method Manager class reference
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*/
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CWsfKeepaliveCmm* iCmMgr;
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/**
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* Connection Monitor class reference
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*/
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CWsfKeepaliveConnMon* iConnMon;
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/**
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* Connection Disconnector class reference
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*/
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CWsfKeepaliveConnMonDisc* iConnMonDisc;
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/**
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* RConnection handler class reference
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*/
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CWsfKeepaliveEsock* iEsock;
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/**
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* Time when keepalive started for monitored connection
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*/
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TTime iKeepaliveStart;
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/**
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* ID of monitored connection, KInvalidConnectionId if not valid
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*/
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TUint iConnectionId;
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/**
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* State of the keepalive implementation
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*/
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TUint iState;
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/**
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* IapId of the connection
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*/
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TUint iIapId;
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};
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#endif // WSFKEEPALIVE_H
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