1 /*

     2 * Copyright (c) 2006-2008 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:    Send data to User of NAT Connectivity Framework.

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #ifndef C_SOCKET_SENDER_H

    22 #define C_SOCKET_SENDER_H

    23 

    24 #include <e32base.h>

    25 #include <es_sock.h> 

    26 #include <in_sock.h>

    27 #include "natfwsocketsenderobserver.h"

    28 #include "cnsmcwsenditem.h"

    29 

    30 /**

    31  *  Data sender

    32  *

    33  *  Send data to User of NAT Connectivity Framework.

    34  *

    35  *  @lib socketmediaconnwrapper.dll

    36  *  @since S60 v3.2

    37  */

    38 NONSHARABLE_CLASS( CNATFWSocketSender ) : public CActive

    39     {

    40     

    41     friend class ut_cnatfwsocketsender;

    42     

    43 public:

    44 

    45     /**

    46      * Two-phased constructor.

    47      * @param aObserver sender observer

    48      * @param aProtocol used protocol

    49      */    

    50     static CNATFWSocketSender* NewL( 

    51         MNATFWSocketSenderObserver& aObserver, TUint aProtocol );

    52 

    53     virtual ~CNATFWSocketSender();

    54     

    55     /**

    56      * Set remote address

    57      *

    58      * @since S60 v3.2

    59      * @param aRemoteAddress remote address

    60      * @param aSocket        socket handle

    61      * @return void

    62      */      

    63     void SetRemoteAddress( const TSockAddr& aRemoteAddress, 

    64                            const RSocket& aSocket );

    65     

    66     /**

    67      * Send data to connected media engine.

    68      *

    69      * @since S60 v3.2

    70      * @param aStreamPortion a reference to buffer where received data put

    71      * @return void

    72      */   

    73     void SendL( const TDesC8& aStreamPortion );

    74 

    75 private:

    76 

    77     CNATFWSocketSender( MNATFWSocketSenderObserver& aObserver, 

    78                         TUint aProtocol );

    79     

    80     /**

    81      * Send next packet from the queue

    82      *

    83      * @since S60 v3.2

    84      * @return void

    85      */  

    86     void SendNextPacket();

    87     

    88     /**

    89      * Remove item from queue

    90      *

    91      * @since S60 v3.2

    92      * @return void

    93      */  

    94     void RemoveFromQueue();

    95     

    96 // from base class CActive

    97     

    98     /* From CActive

    99      * 

   100      *

   101      * @since S60 v3.2

   102      */

   103     void RunL();

   104     

   105     /* From CActive

   106      * 

   107      *

   108      * @since S60 v3.2

   109      */

   110     void DoCancel();

   111 

   112 private: // data

   113 

   114     /**

   115      * Socket

   116      */

   117     RSocket iSocket;

   118     

   119     /**

   120      * Used protocol udp or tcp.

   121      */

   122     TUint iProtocol;

   123     

   124     /**

   125      * Remote address

   126      */

   127     TSockAddr iRemoteAddress;

   128 

   129     /**

   130      * Observer

   131      */

   132     MNATFWSocketSenderObserver& iObserver;

   133     

   134     /**

   135      * Send queue

   136      */

   137     TSglQue <CNsmcwSendItem> iSendQueue;

   138     

   139     /**

   140      * List iterator which is needed to delete all the items

   141      */

   142     TSglQueIter<CNsmcwSendItem> iQueueIter;

   143     

   144     };

   145 

   146 

   147 #endif // C_SOCKET_SENDER_H