natfw/natfwsocketmediaconnwrapper/src/natfwsocketsender.cpp
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     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 #include "natfwsocketsender.h"
       
    22 #include "natfwsocketmediaconnwrapperlogs.h"
       
    23 
       
    24 
       
    25 // ======== MEMBER FUNCTIONS ========
       
    26 
       
    27 // ---------------------------------------------------------------------------
       
    28 // CNATFWSocketSender::CNATFWSocketSender( )
       
    29 // ---------------------------------------------------------------------------
       
    30 //
       
    31 CNATFWSocketSender::CNATFWSocketSender( MNATFWSocketSenderObserver& aObserver,
       
    32     TUint aProtocol ) : CActive(EPriorityUserInput), iProtocol( aProtocol ),
       
    33     iObserver( aObserver ), iSendQueue( CNsmcwSendItem::iOffset ),
       
    34     iQueueIter( iSendQueue )
       
    35     {
       
    36     __SOCKETMEDIACONNWRAPPER( "CNATFWSocketSender::CNATFWSocketSender" )
       
    37 
       
    38     CActiveScheduler::Add(this);
       
    39     }
       
    40 
       
    41 
       
    42 // ---------------------------------------------------------------------------
       
    43 // CNATFWSocketSender::NewL(  )
       
    44 // ---------------------------------------------------------------------------
       
    45 //
       
    46 CNATFWSocketSender* CNATFWSocketSender::NewL( 
       
    47     MNATFWSocketSenderObserver& aObserver, TUint aProtocol )
       
    48     {
       
    49     __SOCKETMEDIACONNWRAPPER( "CNATFWSocketSender::NewL" )
       
    50     
       
    51     CNATFWSocketSender* self = 
       
    52             new (ELeave) CNATFWSocketSender ( aObserver, aProtocol );
       
    53 
       
    54     return self;
       
    55     }
       
    56 
       
    57 
       
    58 // ---------------------------------------------------------------------------
       
    59 // CNATFWSocketSender::~CNATFWSocketSender()
       
    60 // ---------------------------------------------------------------------------
       
    61 //
       
    62 CNATFWSocketSender::~CNATFWSocketSender()
       
    63     {
       
    64     __SOCKETMEDIACONNWRAPPER( "CNATFWSocketSender::~CNATFWSocketSender")
       
    65     
       
    66     Cancel();
       
    67     
       
    68     iQueueIter.SetToFirst();
       
    69     CNsmcwSendItem* item = iQueueIter++;
       
    70     while ( item )
       
    71         {
       
    72         iSendQueue.Remove( *item );
       
    73         delete item;
       
    74         item = iQueueIter++;
       
    75         }
       
    76     }
       
    77 
       
    78 
       
    79 // ---------------------------------------------------------------------------
       
    80 // CNATFWSocketSender::SetRemoteAddress( )
       
    81 // ---------------------------------------------------------------------------
       
    82 //
       
    83 void CNATFWSocketSender::SetRemoteAddress( const TSockAddr& aRemoteAddress,
       
    84                                            const RSocket& aSocket )
       
    85     {
       
    86     iRemoteAddress = aRemoteAddress;
       
    87     iSocket = aSocket;
       
    88     }
       
    89     
       
    90     
       
    91 // ---------------------------------------------------------------------------
       
    92 // CNATFWSocketSender::SendL(  )
       
    93 // ---------------------------------------------------------------------------
       
    94 //
       
    95 void CNATFWSocketSender::SendL( const TDesC8& aStreamPortion )
       
    96     {    
       
    97     CNsmcwSendItem* item = NULL;    
       
    98     TRAPD( err, item = CNsmcwSendItem::NewL( aStreamPortion ) );
       
    99     
       
   100     if ( KErrNone == err && item )
       
   101         {
       
   102         iSendQueue.AddLast( *item );
       
   103         }
       
   104     else
       
   105         {
       
   106         User::Leave( err );
       
   107         }
       
   108     if ( !IsActive() )
       
   109         {
       
   110         SendNextPacket();
       
   111         }
       
   112     }
       
   113 
       
   114 
       
   115 // ---------------------------------------------------------------------------
       
   116 // CNATFWSocketSender::SendNextPacket()
       
   117 // ---------------------------------------------------------------------------
       
   118 //
       
   119 void CNATFWSocketSender::SendNextPacket()
       
   120     {
       
   121     __SOCKETMEDIACONNWRAPPER( "CNATFWSocketSender::SendNextPacket" )
       
   122 
       
   123     iQueueIter.SetToFirst();
       
   124     CNsmcwSendItem* item = iQueueIter++;
       
   125     if ( item )
       
   126         {
       
   127         if( KProtocolInetUdp == iProtocol )
       
   128             {
       
   129             iSocket.SendTo( item->GetData(), iRemoteAddress, 0, iStatus );
       
   130             }
       
   131         if( KProtocolInetTcp == iProtocol )
       
   132             {
       
   133             iSocket.Send( item->GetData(), 0, iStatus );
       
   134             } 
       
   135         SetActive();
       
   136         }
       
   137         
       
   138     __SOCKETMEDIACONNWRAPPER( "CNATFWSocketSender::SendNextPacket - End" )    
       
   139     }
       
   140 
       
   141 
       
   142 // ---------------------------------------------------------------------------
       
   143 // CNATFWSocketSender::RemoveFromQueue()
       
   144 // ---------------------------------------------------------------------------
       
   145 //
       
   146 void CNATFWSocketSender::RemoveFromQueue()
       
   147     {    
       
   148     if ( !( iSendQueue.IsEmpty( ) ) )
       
   149         {
       
   150         CNsmcwSendItem* item = iSendQueue.First();
       
   151         iSendQueue.Remove( *item );
       
   152         delete item;
       
   153         }
       
   154     }
       
   155 
       
   156 
       
   157 // ---------------------------------------------------------------------------
       
   158 // CNATFWSocketSender::RunL( )
       
   159 // ---------------------------------------------------------------------------
       
   160 //
       
   161 void CNATFWSocketSender::RunL( )
       
   162     {
       
   163     __SOCKETMEDIACONNWRAPPER_INT1( 
       
   164         "CNATFWSocketSender::RunL iStatus:", iStatus.Int() )  
       
   165 
       
   166     iObserver.SendingCompleted( iStatus.Int() );
       
   167     
       
   168     if ( KErrNone == iStatus.Int() )
       
   169         {
       
   170         RemoveFromQueue();
       
   171         SendNextPacket();
       
   172         }
       
   173     else 
       
   174         {
       
   175         __SOCKETMEDIACONNWRAPPER( "CNATFWSocketSender::RunL - Sending failed" )
       
   176         
       
   177         iQueueIter.SetToFirst();
       
   178         CNsmcwSendItem* item = iQueueIter++;
       
   179         while ( item )
       
   180             {
       
   181             iSendQueue.Remove( *item );
       
   182             delete item;
       
   183             item = iQueueIter++;
       
   184             }
       
   185         }
       
   186     }
       
   187 
       
   188 
       
   189 // ---------------------------------------------------------------------------
       
   190 // CNATFWSocketSender::DoCancel( )
       
   191 // ---------------------------------------------------------------------------
       
   192 //
       
   193 void CNATFWSocketSender::DoCancel( )
       
   194     {
       
   195     __SOCKETMEDIACONNWRAPPER( "CNATFWSocketSender::DoCancel start" )
       
   196 
       
   197     iSocket.CancelAll();
       
   198     }