dosservices/commondsy/src/CDSYMessageBufferItem.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 19 Aug 2010 11:09:10 +0300 (2010-08-19)
branchRCL_3
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permissions -rw-r--r--
Revision: 201031 Kit: 201033
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Implementation of CDSYMessageBufferItem class
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*
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*/
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// INCLUDE FILES 
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#include "CDSYMessageBufferItem.h"
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#include "CDSYController.h"
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#include "CDSYMessage.h"
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#include "CDSYMessageStructures.h"
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#include "CDSYDOSServerRequestManager.h"
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#include "commondsy_debug.h"
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// EXTERNAL DATA STRUCTURES
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// EXTERNAL FUNCTION PROTOTYPES  
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// CONSTANTS
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#ifdef _DEBUG
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    // 20 seconds
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    const TUint32 KTransactionExpirationTime = 20000000;
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#else
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    // 10 seconds
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    const TUint32 KTransactionExpirationTime = 10000000;
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#endif
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// MACROS
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// LOCAL CONSTANTS AND MACROS
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// MODULE DATA STRUCTURES
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// LOCAL FUNCTION PROTOTYPES
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// FORWARD DECLARATIONS
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// ============================= LOCAL FUNCTIONS ===============================
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::NewL
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// -----------------------------------------------------------------------------
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CCDSYMessageBufferItem* CCDSYMessageBufferItem::NewL( CCDSYController& aCDSYController, CCDSYDOSServerRequestManager& aCDSYDOSServerRequestManager, TCDSYMessage& aCDSYMessage )
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    {
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    COM_TRACE_3( "CDSY - CCDSYMessageBufferItem::NewL(0x%x, 0x%x, 0x%x)", &aCDSYController, &aCDSYDOSServerRequestManager, &aCDSYMessage );
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    CCDSYMessageBufferItem* messageBufferItem = new ( ELeave ) CCDSYMessageBufferItem( aCDSYController, aCDSYDOSServerRequestManager, aCDSYMessage );
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    CleanupStack::PushL( messageBufferItem );
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    messageBufferItem->ConstructL();
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    messageBufferItem->iTransactionID = aCDSYMessage.TransactionID();
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    CleanupStack::Pop( messageBufferItem );
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    COM_TRACE_1( "CDSY - CCDSYMessageBufferItem::NewL - return 0x%x", messageBufferItem );
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    return messageBufferItem;
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    }
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::NewL
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// -----------------------------------------------------------------------------
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CCDSYMessageBufferItem* CCDSYMessageBufferItem::NewL( CCDSYController& aCDSYController, CCDSYDOSServerRequestManager& aCDSYDOSServerRequestManager, TCDSYMessage& aCDSYMessage, RMessagePtr2 aMessage )
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    {
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    COM_TRACE_4( "CDSY - CCDSYMessageBufferItem::NewL(0x%x, 0x%x, 0x%x, 0x%x)", &aCDSYController, &aCDSYDOSServerRequestManager, &aCDSYMessage, &aMessage );
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    TRACE_ASSERT( !aMessage.IsNull() );
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    CCDSYMessageBufferItem* messageBufferItem = new ( ELeave ) CCDSYMessageBufferItem( aCDSYController, aCDSYDOSServerRequestManager, aCDSYMessage );
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    CleanupStack::PushL( messageBufferItem );
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    messageBufferItem->ConstructL();
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    // The message and its data are copied since in asynchronous case there is no active wait
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    // and the stack-allocated data gets deleted when SendMessageL returns
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    if ( aCDSYMessage.Data() != NULL )
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        {
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        messageBufferItem->iMessageData = HBufC8::NewL( aCDSYMessage.Data()->Length() );
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        *messageBufferItem->iMessageData = *aCDSYMessage.Data();
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        }
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    messageBufferItem->iCDSYMessage = new ( ELeave ) TCDSYMessage( aCDSYMessage.Group(), aCDSYMessage.ID(), messageBufferItem->iMessageData, aCDSYMessage.TransactionID() );
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    // The owned flag tells the destructor that the message needs to be deleted
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    messageBufferItem->iMessageOwned = ETrue;
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    messageBufferItem->iClientServerMessage = aMessage;
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    messageBufferItem->iTransactionID = aCDSYMessage.TransactionID();
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    CleanupStack::Pop( messageBufferItem );
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    COM_TRACE_1( "CDSY - CCDSYMessageBufferItem::NewL - return 0x%x", messageBufferItem );
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    return messageBufferItem;
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    }
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   112
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   113
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   114
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::CCDSYMessageBufferItem
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// -----------------------------------------------------------------------------
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CCDSYMessageBufferItem::CCDSYMessageBufferItem( CCDSYController& aCDSYController, CCDSYDOSServerRequestManager& aCDSYDOSServerRequestManager, TCDSYMessage& aCDSYMessage )
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: iCDSYController( aCDSYController )
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, iCDSYDOSServerRequestManager( aCDSYDOSServerRequestManager )
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, iCDSYMessage( &aCDSYMessage )
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, iMessageData( NULL )
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, iMessageOwned( EFalse )
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, iActiveWait( EFalse )
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, iTimer( NULL )
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, iTransactionID( 0xFFFFFFFF )
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    {
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    COM_TRACE_3( "CDSY - CCDSYMessageBufferItem::CCDSYMessageBufferItem(0x%x, 0x%x, 0x%x)", &aCDSYController, &aCDSYDOSServerRequestManager, &aCDSYMessage );
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::CCDSYMessageBufferItem - return void" );
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    }
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::~CCDSYMessageBufferItem
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// -----------------------------------------------------------------------------
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CCDSYMessageBufferItem::~CCDSYMessageBufferItem()
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    {
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::~CCDSYMessageBufferItem()" );
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    delete iTimer;
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    delete iMessageData;
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    if ( iMessageOwned )
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        {
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        delete iCDSYMessage;
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        }
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::~CCDSYMessageBufferItem - return void" );
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    }
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::ConstructL
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// -----------------------------------------------------------------------------
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void CCDSYMessageBufferItem::ConstructL()
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    {
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::ConstructL()" );
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    iTimer = CPeriodic::NewL( CActive::EPriorityHigh );
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::ConstructL - return void" );
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    }
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   167
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::SendMessageL
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// -----------------------------------------------------------------------------
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void CCDSYMessageBufferItem::SendMessageL()
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    {
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::SendMessage()" );
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    if ( iClientServerMessage.IsNull() )
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        {
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        iCDSYController.ProcessMessageL( *iCDSYMessage );
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        if ( iCDSYMessage->ReturnData() == NULL )
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            {
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            iTimer->Start( KTransactionExpirationTime,  KTransactionExpirationTime, TCallBack( NotifyTimerCallback, this ) );
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            // Response not received, since the datacount is same.
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            BeginActiveWait();
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            }
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        if ( iCDSYMessage->ReturnData() == NULL )
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            {
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            User::Leave( KErrGeneral );
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            }
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        }
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    else
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        {
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        iTimer->Start( KTransactionExpirationTime,  KTransactionExpirationTime, TCallBack( NotifyTimerCallback, this ) );
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        iCDSYController.ProcessMessageL( *iCDSYMessage );
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        }
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::SendMessage - return void" );
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    }
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   199
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::ProcessResponseL
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// -----------------------------------------------------------------------------
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void CCDSYMessageBufferItem::ProcessResponseL( const TCDSYMessage& aCDSYMessage )
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    {
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    COM_TRACE_1( "CDSY - CCDSYMessageBufferItem::ProcessResponseL(0x%x)", &aCDSYMessage );
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    if ( iClientServerMessage.IsNull() )
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        {
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        TRACE_ASSERT( aCDSYMessage.Data() != NULL );
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        iCDSYMessage->SetReturnDataL( aCDSYMessage.Data() );
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        EndActiveWait();
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        }
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    else
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        {
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        COM_TRACE_( "CDSY - CCDSYMessageBufferItem::ProcessResponseL - Completing async request" );
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        TRACE_ASSERT( aCDSYMessage.Data() != NULL );
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        TRACE_ASSERT( aCDSYMessage.Data()->Length() == sizeof ( TCDSYMsgDataReturn ) );
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        iClientServerMessage.Complete( ( ( TCDSYMsgDataReturn* )aCDSYMessage.Data()->Ptr() )->iReturn );
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        }
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::ProcessResponseL - return void" );
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    }
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::BeginActiveWait
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// -----------------------------------------------------------------------------
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void CCDSYMessageBufferItem::BeginActiveWait()
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    {
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::BeginActiveWait()" );
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    TRACE_ASSERT( iClientServerMessage.IsNull() );
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    if ( iActiveWait )
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        {
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        TRACE_ASSERT_ALWAYS;
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        }
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    else
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        {
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        iActiveWait = ETrue;
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        iWait.Start();
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        }
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::BeginActiveWait - return void" );
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    }
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::EndActiveWait
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// -----------------------------------------------------------------------------
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void CCDSYMessageBufferItem::EndActiveWait()
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    {
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::EndActiveWait()" );
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    TRACE_ASSERT( iClientServerMessage.IsNull() );
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    if ( iActiveWait )
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        {
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        iWait.AsyncStop();
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        iActiveWait = EFalse;
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        iTimer->Cancel();
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        }
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::EndActiveWait - return void" );
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    }
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::NotifyTimerCallback
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// -----------------------------------------------------------------------------
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TInt CCDSYMessageBufferItem::NotifyTimerCallback( TAny* aPtr )
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    {
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    COM_TRACE_1( "CDSY - CCDSYMessageBufferItem::NotifyTimerCallback(0x%x)", aPtr );
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    TRACE_ASSERT( aPtr != NULL );
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    TInt err;
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    TRAP( err, ( ( CCDSYMessageBufferItem* )aPtr )->DoNotifyTimerCallbackL() );
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    TRACE_ASSERT( err == KErrNone );
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    COM_TRACE_1( "CDSY - CCDSYMessageBufferItem::NotifyTimerCallback - return 0x%x", ETrue );
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    return ETrue;
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    }
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::DoNotifyTimerCallbackL
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// -----------------------------------------------------------------------------
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void CCDSYMessageBufferItem::DoNotifyTimerCallbackL()
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    {
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::DoNotifyTimerCallbackL()" );
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    TRACE_ASSERT_ALWAYS;
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    iCDSYController.ExpireMessageL( *iCDSYMessage );
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    if ( iClientServerMessage.IsNull() )
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        {
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        EndActiveWait();
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        }
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    else
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        {
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        iCDSYDOSServerRequestManager.Cancel( iCDSYMessage->TransactionID(), KErrGeneral );
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        }
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::DoNotifyTimerCallbackL - return void" );
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    }
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   311
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   313
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// -----------------------------------------------------------------------------
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// CCDSYMessageBufferItem::CancelAsyncCommand
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// -----------------------------------------------------------------------------
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void CCDSYMessageBufferItem::CancelAsyncCommand( TInt aReason ) const
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    {
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::CancelAsyncCommand()" );
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    iClientServerMessage.Complete( aReason );
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    COM_TRACE_( "CDSY - CCDSYMessageBufferItem::CancelAsyncCommand - return void" );
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    }
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