/*

* Copyright (c) 2003-2004 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:  Data Connection Logger.

*

*/

#ifndef DCLENGINE_H

#define DCLENGINE_H

#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

#include <logwraplimits.h>

#endif

#include <e32std.h>

#include <es_sock.h>

#include <e32base.h>

#include <commdb.h>

#include <commsdat.h>

#include <wlancontainer.h>

#include <rconnmon.h>

#include <mmtsy_names.h>

#include <etel.h>

#include <etelmm.h>

#include <etelpckt.h>

#include <pcktcs.h>

#ifdef __WLAN

#include <wlanloguid.h>

#endif // __WLAN

#include "dclevent.h"

#include "saeobserver.h"

// CONSTANTS

// UID of DataConnectionLogger

const TLogId    KGenconnLogWaitingForLogId      = KLogNullId -1;

const TInt      KBytesInfoNotAvailable          = -1;

const TUint     KGPRSDataThreshold              = 20480;

const TUint     KWCDMADataThreshold             = 51200;

const TUint     KWLANDataThreshold              = 102400;

const TUint     KSubConnectionId                = 0;

const TInt      KMaxAPName                      = KCommsDbSvrMaxFieldLength;

const TInt      KPhoneRetryCount                = 7; // Must be at least 1

const TInt      KPhoneRetryTimeout              = 100000;

const TInt      KConnectionStatusIdNotAvailable = -1;

// The granularity with which iLogEventQueue and iConnections will

// allocate memory chunks. If set to 20 there will be space for 20

// instances of CEvent before new memory will be allocated.

const TInt      KEventStateMaxCount             = 20;

const TInt      KDatabufferSize                 = 64;

// Timer mode constants

const TInt      KTimerInterval                  = 10;

_LIT( KDCLName, "DataConnectionLogger" );

#ifndef __WLAN

#define KLOGWLANDATAEVENTTYPE 0x1000595f

const TUid KLogWlanDataEventTypeUid = {KLOGWLANDATAEVENTTYPE};

#endif // __WLAN

//  DATA TYPES

enum TDCLPanic

    {

    ECannotCreateCleanup            = 600,

    ECannotCreateActiveScheduler,

    ECannotCreateCEngine,

    ECannotRequestNotification

    };

// FORWARD DECLARATIONS

class CDclTimerAO;

// CLASS DECLARATION

/**

*  CEngine

*  Gets information from connection monitor server using RCcnnectionMonitor

*  object. Implements MConnectionMonitorObserver interface.

*

*/

class CEngine : public CActive,

                private MConnectionMonitorObserver

    {

    public:

        // Constructors

        static CEngine* NewL( );

        static CEngine* NewLC( );

        // Destructor

        virtual ~CEngine();

    public: // New methods

        /**

        * Adds log events.

        */

        void LogDataAddEventL(

                TLogId        aConnectionId,

                TInt          aRConnectionStatusId,

                const TDesC&  aRemote,

                TInt          aLogDir,

                const TDesC&  aTelNum,

                const TUid&   aDataEventType );

        /**

        * Changes the remote party string for existing log events.

        */

        void LogDataChangeEventL(

                TLogId        aConnectionId,

                const TDesC&  aRemote );

        /**

        * Updates log events.

        */

        TInt LogDataUpdateEventL(

                TLogId        aConnectionId,

                TInt          aRConnectionStatusId,

                const TUid&   aDataEventType,

                const TInt64& aBytesSent,

                const TInt64& aBytesReceived );

        /**

        * Starts notifications.

        */

        void NotifyL() ;

        /**

        * Updates log event parameters.

        */

        TInt UpdateLogEventParamL(

                TLogId        aConnectionId,

                CLogEvent&    aLogEvent,

                TInt          aRConnectionStatusId,

                const TUid&   aDataEventType,

                const TInt64& aBytesSent,

                const TInt64& aBytesReceived );

        /**

        * Updates cumulative counters of SharedData

        */

        void UpdateSharedDataL(

                TLogId        aConnectionId,

                const TInt64& aBytesSent,

                const TInt64& aBytesReceived );

        /**

        * Gets the Attach Mode setting from CommDb and

        * sets ETel to use that value.

        */

        void SetAttachModeL() const;

        /**

        * Gets the default Access Point Name from CommDb and

        * sets ETel to use that APN.

        */

        void SetAPNL() const;

        // Following methods are from CActive.

        /**

        * Handles a cancel request to the service provider.

        * This function is defined as pure virtual in CActive and any

        * class derived from CActive must define and implement it.

        */

        void DoCancel();

        /**

        * Handles the completion of an asynchronous request.

        * This function is defined as pure virtual in CActive and any

        * class derived from CActive must define and implement it.

        */

        void RunL();

        /**

        * Writes to log databases in timer mode.

        */

        TInt LogDataInTimerModeL( const TUint aConnectionId );

        /**

        * Switches logging to the threshold mode.

        */

        void SwitchToThresholdMode( const TUint aConnectionId, const TUint aThreshold = 0 );

    private : // From MConnectionMonitorObserver

        void EventL( const CConnMonEventBase& aConnMonEvent ) ;

    private: // New methods

        CEngine();

        void ConstructL();

        void AddEventTypeL();

        /**

        * Copies aName to aResult as such. Both descriptors are 16-bit.

        */

        void ReplaceAPN( TDes& aResult, const TDesC& aName ) const ;

        /**

        * Converts aName to UTF-8 and copies it to aResult which is 8-bit descriptor.

        */

        void ReplaceAPN( TDes8& aResult, const TDesC& aName ) const;

        /**

        * Switches logging to the timer mode.

        */

        void SwitchToTimerMode( const TUint aConnectionId );

        /**

        * Gets duration of a connection.

        */

        TBool GetDuration( const TUint aConnectionId, TInt& aDuration );

        /**

        * Gets the default threshold for a connection.

        */

        TInt GetDefaultThreshold( const TUint aConnectionId, TUint& aThreshold );

        /**

        * Reads ini file settings.

        */

        void ReadIniFile();

    private: // Data

        RConnectionMonitor          iConnectionMonitor;

        CLogWrapper*                iLogWrap;

        CArrayPtrFlat<CEvent>*      iLogEventQueue;

        CArrayPtrFlat<CEvent>*      iConnections;

        CLogEvent*                  iCurrentLogEvent;

        RFs                         iFsEventLog;

        RPacketContext              iContext;

        // Handle to the telephony server

        RTelServer                  iTelServer;

        // Handle to the packet service

        RPacketService              iPacketService;

        // RMobilePhone handle

        RMobilePhone                iMobilePhone;

        // 1 = mmtsy is loaded, 0 = mmtsy is not loaded

        TUint8                      iTSYLoaded;

        // 1 = packet services are loaded, 0 = not loaded

        TUint8                      iPacketServLoaded;

        // to add wlan event type

        CLogEventType*              iLogEventType;

        CLogClient*                 iLogClient;

        // A pointer to the active object that logs connections that are in timer mode.

        CDclTimerAO*                iDclTimerAO;

        TInt                        iTimerInterval;

        TUint                       iGPRSThreshold;

        TUint                       iWCDMAThreshold;

        TUint                       iWLANThreshold;

        // a pointer to SaeObserver that updates P&S variables

        CSaeObserver*               iSaeObserver;

    };

#endif // DCLENGINE_H

// End of File