1 /*

     2 * Copyright (c) 2006-2007 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 

    20 

    21 #include "tnatfwunsafmsgstateheaderstart.h"

    22 #include "mnatfwunsafmsgassemblerctx.h"

    23 

    24 // ----------------------------------------------------------------------------

    25 // TNATFWUNSAFMsgStateHeaderStart::DataReceivedL

    26 // ----------------------------------------------------------------------------

    27 //

    28 TBool TNATFWUNSAFMsgStateHeaderStart::DataReceivedL(

    29     TPtr8 aData,

    30     TUint& aNextLength )

    31     {

    32     TInt messageLength( iMsgAssembler.MessageLength() );

    33     __ASSERT_ALWAYS( messageLength > 0,

    34                      User::Leave( KErrNotReady ) );

    35 

    36     TBool retVal( EFalse );

    37 

    38     if ( iMsgAssembler.MsgBuffer().Size() > 0 )

    39         {

    40         // If there's existing data in msg buffer insert the received data

    41         // to msg buffer.

    42         iMsgAssembler.MsgBuffer().InsertL( iMsgAssembler.MsgBuffer().Size(),

    43                                            aData );

    44         iMsgAssembler.MsgBuffer().Compress();

    45 

    46         // delete content of received data.

    47         aData.Delete( 0, aData.Length() );

    48         TPtr8 bufPtr = iMsgAssembler.MsgBuffer().Ptr( 0 );

    49 

    50         if ( bufPtr.Length() >= messageLength )

    51             {

    52             // There's enough data for complete NATFWUNSAF msg

    53 

    54             HBufC8* newData = HBufC8::NewLC( bufPtr.Length() );

    55 

    56             // copy the msg buffer data to new data

    57             TPtr8 newDataPtr = newData->Des();

    58             newDataPtr.Append( bufPtr );

    59 

    60             // clean the msg buffer

    61             iMsgAssembler.MsgBuffer().Reset();

    62             iMsgAssembler.MsgBuffer().Compress();

    63 

    64             iMsgAssembler.ChangeState(

    65                 TNATFWUNSAFMsgStateBase::EMsgHeaderEnd );

    66             retVal =

    67                 iMsgAssembler.CurrentState().DataReceivedL( newDataPtr,

    68                                                             aNextLength );

    69             CleanupStack::PopAndDestroy( newData );

    70             }

    71         }

    72     else if ( aData.Length() >= messageLength )

    73         {

    74         // There's enough data for complete NATFWUNSAF msg

    75 

    76         iMsgAssembler.ChangeState( TNATFWUNSAFMsgStateBase::EMsgHeaderEnd );

    77         retVal =

    78             iMsgAssembler.CurrentState().DataReceivedL( aData, aNextLength );

    79         }

    80     else

    81         {

    82         // There's not enough data for complete UNSAF message,

    83         // wait for more incoming data

    84         iMsgAssembler.MsgBuffer().InsertL( iMsgAssembler.MsgBuffer().Size(),

    85                                            aData );

    86 

    87         iMsgAssembler.MsgBuffer().Compress();

    88 

    89         aNextLength =

    90             messageLength - iMsgAssembler.MsgBuffer().Ptr( 0 ).Length();

    91         }

    92 

    93     return retVal;

    94     }

    95 

    96 // End of File

    97