/*+
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* Copyright (c) 2006-2007 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:  Main client side interface of DUN+
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*+
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*/+
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+
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+
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#include "dunclient.h"+
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#include "dunserverdef.h"+
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#include "DunDebug.h"+
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#include "dunactive.h"+
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+
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const TInt KDunRetryCount        = 3;+
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const TInt KDunNumOfMessageSlots = 4;+
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+
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// ======== LOCAL FUNCTIONS ========+
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+
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// ---------------------------------------------------------------------------+
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// Create server thread/process+
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// ---------------------------------------------------------------------------+
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//+
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static TInt StartServer()+
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    {+
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    FTRACE(FPrint( _L("StartServer()") ));+
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    TInt retVal = KErrNone;+
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    TRequestStatus statusStarted;+
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+
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    RProcess server;+
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    retVal = server.Create( KDialupServerName, KNullDesC, EOwnerThread );+
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+
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    if ( retVal != KErrNone )+
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        {+
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        FTRACE(FPrint( _L("StartServer() complete (%d)"), retVal ));+
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        return retVal;+
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        }+
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+
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    TRequestStatus stat;+
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    server.Rendezvous( stat );+
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+
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    if ( stat != KRequestPending )+
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        {+
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        server.Kill( 0 );  //abort startup+
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        }+
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    else+
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        {+
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        server.Resume(); //logon OK - start the server+
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        }+
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+
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    User::WaitForRequest( stat ); //wait the start or death of the server+
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+
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    /*+
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    we can't use the 'exit reason' if the server panicked as this+
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    is the panic 'reason' and may be '0' which cannot be distinguished+
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    from KErrNone+
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    */+
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    retVal = stat.Int();+
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    if ( server.ExitType() == EExitPanic )+
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        {+
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        retVal = KErrServerTerminated;+
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        }+
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+
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    server.Close();+
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    FTRACE(FPrint( _L("StartServer() complete (%d)"), retVal ));+
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    return retVal;+
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    }+
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+
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// ======== MEMBER FUNCTIONS ========+
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+
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// ---------------------------------------------------------------------------+
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// RDun::RDun()+
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// ---------------------------------------------------------------------------+
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//+
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RDun::RDun()+
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    {+
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    }+
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+
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// ---------------------------------------------------------------------------+
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// This function starts DUN open/close for different medias+
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// ---------------------------------------------------------------------------+
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//+
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TInt RDun::ManageService( MDunActive* aRequest, TRequestStatus& aReqStatus )+
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    {+
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    FTRACE(FPrint( _L("RDun::ManageService()") ));+
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    SendReceive( EDunFuncManageService,+
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                 TIpcArgs(aRequest->Bearer(),+
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                          aRequest->BearerStatus()),+
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                 aReqStatus );+
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    FTRACE(FPrint( _L("RDun::ManageService() complete") ));+
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    return KErrNone;+
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    }+
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+
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// ---------------------------------------------------------------------------+
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// This function gets the active connection+
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// ---------------------------------------------------------------------------+
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//+
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TAny* RDun::ActiveConnection()+
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    {+
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    FTRACE(FPrint( _L("RDun::ActiveConnection()") ));+
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    TAny* connId = NULL;+
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    TPckg<TAny*> connIdPckg( connId );+
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    SendReceive( EDunFuncActiveConnection,+
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                 TIpcArgs(&connIdPckg) );+
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    FTRACE(FPrint( _L("RDun::ActiveConnection() complete") ));+
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    return connId;+
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    }+
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+
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// ---------------------------------------------------------------------------+
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// Version number+
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// ---------------------------------------------------------------------------+
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//+
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TVersion RDun::Version() const+
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    {+
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    FTRACE(FPrint( _L("RDun::Version()") ));+
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    FTRACE(FPrint( _L("RDun::Version() complete") ));+
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    return ( TVersion(KDunServerMajorVersionNumber,+
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                      KDunServerMinorVersionNumber,+
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                      KDunServerBuildVersionNumber) );+
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    }+
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+
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// ---------------------------------------------------------------------------+
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// This function connects to DUN server and creates a new session.+
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// ---------------------------------------------------------------------------+
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//+
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TInt RDun::Connect()+
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    {+
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    FTRACE(FPrint( _L("RDun::Connect()") ));+
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    TInt retry;+
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    TInt retVal = KErrNone;+
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    for ( retry=KDunRetryCount; retry>=0; retry-- )+
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        {+
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        retVal=CreateSession( KDialupServerName,+
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                              TVersion(KDunServerMajorVersionNumber,+
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                                       KDunServerMinorVersionNumber,+
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                                       KDunServerBuildVersionNumber),+
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                              KDunNumOfMessageSlots );+
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        if ( retVal == KErrNotFound || retVal == KErrServerTerminated )+
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            {+
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            retVal = StartServer();+
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            if ( retVal!=KErrNone && retVal!=KErrAlreadyExists )+
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                {+
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                FTRACE(FPrint( _L("RDun::Connect() complete (%d)"), retVal ));+
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                return retVal;+
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                }+
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            }+
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        else // KErrNone, or other error code.+
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            {+
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            FTRACE(FPrint( _L("RDun::Connect() complete (%d)"), retVal ));+
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            return retVal;+
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            }+
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        }+
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    FTRACE(FPrint( _L("RDun::Connect() complete (%d)"), retVal ));+
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    return retVal;+
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    }+
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