1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #ifndef DHCPSERVERIPADDRESSRESOLVER_H

    20 #define DHCPSERVERIPADDRESSRESOLVER_H

    21 

    22 #include <e32base.h>

    23 #include <in_sock.h>

    24 #include <comms-infras/netcfgextndhcpmsg.h> // TDhcp4RawOptionDataPckg

    25 

    26 #include "dhcpconstants.h"

    27 

    28 /**

    29 *  Resolve ip address of DHCP server from WLAN network.

    30 *

    31 *  @lib dhcppositionprovider

    32 *  @since S60 3.2

    33 */

    34 class CDhcpPsyDhcpServerIPResolver : public CActive

    35     {

    36     public:

    37 

    38         /**

    39          * Two-phased statical constructor which can leave

    40          *

    41          * @since S60 3.2

    42          */

    43         static CDhcpPsyDhcpServerIPResolver* NewL( RConnection& aConnection, TRequestStatus& aStatus );

    44 

    45         /**

    46          * Default destructor.

    47          *

    48          * @since S60 3.2

    49          */

    50         virtual ~CDhcpPsyDhcpServerIPResolver();

    51 

    52     public:

    53 

    54         /**

    55          *

    56          * Returns ip address of the dhcp server at WLAN network.

    57          *

    58          * @since S60 3.2

    59          * @return const TDesC8&

    60          */

    61         TInetAddr&  DhcpServerInetAddress ();

    62 

    63     public:

    64 

    65         /**

    66         * Called by static periodic timer callback

    67         */

    68         void CancelOutstandigRequest ();

    69 

    70     private:

    71 

    72         /**

    73          * C++ constructor

    74          *

    75          * @since S60 3.2

    76          */

    77         CDhcpPsyDhcpServerIPResolver( RConnection& aConnection, TRequestStatus& aStatus );

    78 

    79         /**

    80          * Finalize construction and launches the adddress to the WLAN network

    81          */

    82          void ConstructL();

    83 

    84     protected:

    85 

    86         /**

    87         * Cancellation of an outstanding request.

    88         */

    89         void DoCancel();

    90 

    91         /**

    92         * Handles an active object's request completion event.

    93         */

    94         void RunL();

    95 

    96     private:        // Methods

    97 

    98         /*

    99         * The callback function.

   100         * param aAny A pointer to this class.

   101         */

   102         static TInt PeriodicTimerCallBack(TAny* aAny);

   103 

   104         /*

   105         * Complete client request.

   106         */

   107         void  CompleteRequest(TInt aStatusCode);

   108 

   109     private: // data

   110 

   111         //

   112         RConnection& iConnection;

   113 

   114         // To cancel outstanding request if needed.

   115         CPeriodic*  iPeriodicTimer;

   116 

   117         // If true, we have received response from network

   118         TBool   iDhcpResponseReceived;

   119 

   120         // Client TRequestStatus to be notify after request

   121         //  has been completed.

   122         TRequestStatus& iClientStatus;

   123 

   124         //

   125         TConnectionAddrBuf iPckg;

   126 

   127         // Container for ip addres of the dhcp server.

   128         TInetAddr   iInetAddress;

   129 

   130     };

   131 

   132 #endif // DHCPSERVERIPADDRESSRESOLVER_H

   133 

   134