1 /*

     2 * Copyright (c) 2009 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:  Listens TCP port

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef CTCPPORTLISTENER_H

    21 #define CTCPPORTLISTENER_H

    22 

    23 //  INCLUDES

    24 #include <e32base.h>

    25 #include <es_sock.h>

    26 

    27 

    28 // FORWARD DECLARATIONS

    29 class MTCPPortListenerObserver;

    30 

    31 // CLASS DECLARATION

    32 

    33 /**

    34 *  ActiveObject which listens a TCP port.

    35 */

    36 NONSHARABLE_CLASS( CTCPPortListener ) : public CActive

    37     {

    38     public:  // Constructors and destructor

    39 

    40         /**

    41         * Factory function.

    42         * @param aPort TCP port to listen.

    43         * @param aObserver Pointer to observer.

    44         */

    45         static CTCPPortListener* NewL( TInt aPort,

    46                                        MTCPPortListenerObserver* aObserver );

    47 

    48         /**

    49         * Factory function.

    50         * @param aPort TCP port to listen.

    51         * @param aObserver Pointer to observer.

    52         */

    53         static CTCPPortListener* NewLC( TInt aPort,

    54                                         MTCPPortListenerObserver* aObserver );

    55 

    56         /**

    57         * Destructor.

    58         */

    59         ~CTCPPortListener();

    60 

    61     public: // New functions

    62 

    63         /**

    64         * Starts listening the port.

    65         */

    66         void IssueListen();

    67 

    68         /**

    69         * Retrieve current port number for this listener

    70         * @return Port number for this listening socket

    71         */

    72         TInt Port() const;

    73 

    74     public: // Functions from base classes

    75 

    76         /**

    77         * From CActive. Pending request has been completed.

    78         */

    79         void RunL();

    80 

    81         /**

    82         * From CActive. Pending request has been cancelled.

    83         */

    84         void DoCancel();

    85 

    86         /**

    87         * From CActive. RunL has leaved.

    88         */

    89         TInt RunError( TInt aError );

    90 

    91     private:

    92 

    93         /**

    94         * Default constructor.

    95         * @param aPort TCP port to listen.

    96         * @param aObserver Pointer to observer.

    97         */

    98         CTCPPortListener( TInt aPort,

    99                           MTCPPortListenerObserver* aObserver );

   100 

   101         /**

   102         * 2nd phase constructor.

   103         */

   104         void ConstructL();

   105 

   106     private:    // Data

   107         MTCPPortListenerObserver* iObserver;

   108         TInt iPort;

   109         RSocketServ iSocketServer;

   110         RSocket iListeningSocket;

   111         RSocket* iAcceptedSocket;

   112     };

   113 

   114 #endif      // CTCPPORTLISTENER_H

   115 

   116 // End of File