connectivitylayer/usbphonetlink/usbpnserver_exe/src/cusbpnisasender.cpp
author <dalarub>
Fri, 06 Nov 2009 17:28:23 +0000
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child 5 8ccc39f9d787
permissions -rw-r--r--
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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 the License "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:
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*
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*/
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// INCLUDE FILES
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#include "cusbpnisasender.h"
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#include "cusbpnpacket.h"
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#include "musbpnbufferlistener.h"
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#include "usbpndefinitions.h"
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#include "usbpntrace.h"
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#include "osttracedefinitions.h"
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#ifdef OST_TRACE_COMPILER_IN_USE
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#include "cusbpnisasenderTraces.h"
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#endif
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#include <iscapi.h>                 // For RIscApi
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// EXTERNAL DATA STRUCTURES
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// EXTERNAL FUNCTION PROTOTYPES
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// CONSTANTS
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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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// CUsbPnIsaSender::CUsbPnIsaSender
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// C++ default constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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CUsbPnIsaSender::CUsbPnIsaSender( MUsbPnBufferListener& aBufferListener, RIscApi& aIscApi  )
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    :CActive( CActive::EPriorityStandard )
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    ,iBufferListener( aBufferListener )
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    ,iIscApi( aIscApi )
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    ,iPacketCount( 0 )
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    {
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    OstTraceExt2( TRACE_NORMAL, CUSBPNISASENDER_CUSBPNISASENDER_ENTRY, "CUsbPnIsaSender::CUsbPnIsaSender;aBufferListener=%x;aIscApi=%x", ( TUint )&( aBufferListener ), ( TUint )&( aIscApi ) );
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    C_TRACE( ( _T( "CUsbPnIsaSender::CUsbPnIsaSender( aBufferListener:0x%x, aIscApi:0x%x )" ), &aBufferListener, &aIscApi ) );
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    CActiveScheduler::Add(this);
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_CUSBPNISASENDER_EXIT, "CUsbPnIsaSender::CUsbPnIsaSender - return" );
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    C_TRACE( ( _T( "CUsbPnIsaSender::CUsbPnIsaSender() - return" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CUsbPnIsaSender::ConstructL()
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    {
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_CONSTRUCTL_ENTRY, "CUsbPnIsaSender::ConstructL" );
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    C_TRACE( ( _T( "CUsbPnIsaSender::ConstructL()" ) ) );
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    // Create circular buffer objects
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    for(TUint i = 1; i < (KPnIsaPacketCount + 1); i++)
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        {
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        AddPacketBufferL(i);
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        }
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    iCurrentPacket = iPacket;
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_CONSTRUCTL_EXIT, "CUsbPnIsaSender::ConstructL - return void" );
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    C_TRACE( ( _T( "CUsbPnIsaSender::ConstructL() - return void" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CUsbPnIsaSender* CUsbPnIsaSender::NewL( MUsbPnBufferListener& aBufferListener, RIscApi& aIscApi )
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    {
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    OstTraceExt2( TRACE_NORMAL, CUSBPNISASENDER_NEWL_ENTRY, "CUsbPnIsaSender::NewL;aBufferListener=%x;aIscApi=%x", ( TUint )&( aBufferListener ), ( TUint )&( aIscApi ) );
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    C_TRACE( ( _T( "CUsbPnIsaSender::CUsbPnIsaSender( aBufferListener 0x%x, aIscApi:0x%x )" ), &aBufferListener, &aIscApi ) );
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    CUsbPnIsaSender* self = new( ELeave ) CUsbPnIsaSender( aBufferListener, aIscApi );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    OstTrace1( TRACE_NORMAL, CUSBPNISASENDER_NEWL_EXIT, "CUsbPnIsaSender::NewL - return;self=%x", self );
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    C_TRACE( ( _T( "CUsbPnIsaSender::CUsbPnIsaSender() - return 0x%x" ), self ) );
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    return self;
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    }
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// Destructor
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CUsbPnIsaSender::~CUsbPnIsaSender()
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    {
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_CUSBPNISASENDER_DESTRUCTOR_ENTRY, "CUsbPnIsaSender::~CUsbPnIsaSender" );
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    C_TRACE( ( _T( "CUsbPnIsaSender::~CUsbPnIsaSender()" ) ) );
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    Cancel();
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    // Delete circular buffer objects
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    CUsbPnPacket* packet;
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    while(iPacketCount > 0)
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        {
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        iPacketCount--;
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        packet = &iPacket->NextPacket();
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        delete iPacket;
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        iPacket = packet;
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        }
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    iCurrentPacket = NULL;
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    iPacket = NULL;
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_CUSBPNISASENDER_DESTRUCTOR_EXIT, "CUsbPnIsaSender::~CUsbPnIsaSender - return" );
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    C_TRACE( ( _T( "CUsbPnIsaSender::~CUsbPnIsaSender() - return" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::AddPacketBuffer
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// -----------------------------------------------------------------------------
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void CUsbPnIsaSender::AddPacketBufferL( TInt aIndex )
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    {
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_ADDPACKETBUFFERL_ENTRY, "CUsbPnIsaSender::AddPacketBufferL" );
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    C_TRACE((_T("CUsbPnIsaSender::AddPacketBuffer()")));
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    iPacketCount++;
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    iPacket = CUsbPnPacket::NewL( iPacket, aIndex );
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_ADDPACKETBUFFERL_EXIT, "CUsbPnIsaSender::AddPacketBufferL - return void" );
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    C_TRACE((_T("CUsbPnIsaSender::AddPacketBuffer - return void")));
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::DoCancel
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// ?implementation_description
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CUsbPnIsaSender::DoCancel( )
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    {
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_DOCANCEL_ENTRY, "CUsbPnIsaSender::DoCancel" );
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    C_TRACE( ( _T( "CUsbPnIsaSender::DoCancel()" ) ) );
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    iIscApi.SendCancel();
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_DOCANCEL_EXIT, "CUsbPnIsaSender::DoCancel - return void" );
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    C_TRACE( ( _T( "CUsbPnIsaSender::DoCancel() - return void" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::RunL
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// ?implementation_description
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CUsbPnIsaSender::RunL( )
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    {
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    OstTrace1( TRACE_API, CUSBPNISASENDER_RUNL_ENTRY, "CUsbPnIsaSender::RunL;iStatus=%d", iStatus.Int() );
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    A_TRACE( ( _T( "CUsbPnIsaSender::RunL() iStatus:%d" ), iStatus.Int() ) );
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    User::LeaveIfError( iStatus.Int() );
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    iCurrentPacket->ReleaseL();
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    iBufferListener.Receive( ETrue/*dummy*/ );
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    iCurrentPacket = &iCurrentPacket->NextPacket();
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    OstTraceExt2( TRACE_DETAILED, CUSBPNISASENDER_RUNL, "CUsbPnIsaSender::RunL;tail:%d,head:%d", iCurrentPacket->PacketNumber(), iPacket->PacketNumber() );
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    E_TRACE( ( _T( "CUsbPnIsaSender::RunL() - tail:%d,head:%d " ), iCurrentPacket->PacketNumber(), iPacket->PacketNumber()));
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    if(iCurrentPacket != iPacket)
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        {
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        // Continue write
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        OstTrace0( TRACE_DETAILED, CUSBPNISASENDER_RUNL_DUP1, "CUsbPnIsaSender::RunL - Write next in queue." );
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        E_TRACE( ( _T( "CUsbPnIsaSender::RunL() - Write next in queue." )));
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        TryToSendPacket( iCurrentPacket->NextPacket() );
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        }
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    OstTrace0( TRACE_API, CUSBPNISASENDER_RUNL_EXIT, "CUsbPnIsaSender::RunL - return void" );
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    A_TRACE( ( _T( "CUsbPnIsaSender::RunL() - return void" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::RunError
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// ?implementation_description
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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TInt CUsbPnIsaSender::RunError( TInt aError )
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    {
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    OstTrace1( TRACE_API, CUSBPNISASENDER_RUNERROR_ENTRY, "CUsbPnIsaSender::RunError;aError=%d", aError );
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    A_TRACE( ( _T( "CUsbPnIsaSender::RunError( aError:%d )" ), aError ) );
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    switch( aError )
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        {
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        case KErrNotReady:
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        case KErrBadDescriptor:
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        case KErrUnderflow:
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            {
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            TRACE_ASSERT_ALWAYS;
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            CActiveScheduler::Stop();
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            aError = KErrNone;
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            break;
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            }
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        default:
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            {
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            TRACE_ASSERT_ALWAYS;
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            User::Panic( KUsbPnPanicCat, aError );
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            break;
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            }
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        }
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    OstTrace1( TRACE_NORMAL, CUSBPNISASENDER_RUNERROR_EXIT, "CUsbPnIsaSender::RunError - return;aError=%d", aError );
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    C_TRACE( ( _T( "CUsbPnIsaSender::RunError() return - aError:%d )" ), aError ) );
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    return aError;
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::Packet
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// ?implementation_description
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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CUsbPnPacket& CUsbPnIsaSender::PacketL()
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    {
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    OstTrace0( TRACE_NORMAL, CUSBPNISASENDER_PACKETL_ENTRY, "CUsbPnIsaSender::PacketL" );
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    C_TRACE( ( _T( "CUsbPnIsaSender::PacketL()" ) ) );
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    CUsbPnPacket& packet( iPacket->NextPacket() );
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    TBool err = packet.PacketInUse();
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    if (EFalse != err)
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        {
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        User::Leave( err );
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        }
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    OstTrace1( TRACE_NORMAL, CUSBPNISASENDER_PACKETL_EXIT, "CUsbPnIsaSender::PacketL - return;packet=%d", packet.PacketNumber() );
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    C_TRACE((_T("CUsbPnIsaSender::PacketL() - return packet:%d"), packet.PacketNumber()));
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    return packet;
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::Send
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// ?implementation_description
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CUsbPnIsaSender::Send( CUsbPnPacket& aPacket )
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    {
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    OstTrace1( TRACE_API, CUSBPNISASENDER_SEND_ENTRY, "CUsbPnIsaSender::Send;aPacket=%x", ( TUint )&( aPacket ) );
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    A_TRACE( ( _T( "CUsbPnIsaSender::Send( aPacket:0x%x)" ), &aPacket ) );
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    CUsbPnPacket& packet( iPacket->NextPacket() );
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    if( &packet == &aPacket )
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        {
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        iPacket = &packet;
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        OstTrace1( TRACE_DETAILED, CUSBPNISASENDER_SEND, "CUsbPnIsaSender::Send;packet number:%d", iPacket->PacketNumber() );
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        E_TRACE( ( _T( "CUsbPnIsaSender::Send() - packet number:%d" ), iPacket->PacketNumber() ) );
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        TryToSendPacket( *iPacket );
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        }
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    else
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        {
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        TRACE_ASSERT_ALWAYS;
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        User::Panic(_L("USBPNSERVER"), KErrTotalLossOfPrecision);
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        }
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    OstTrace0( TRACE_API, CUSBPNISASENDER_SEND_EXIT, "CUsbPnIsaSender::Send - return void" );
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    A_TRACE( ( _T( "CUsbPnIsaSender::Send() - return void" ) ) );
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    }
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// -----------------------------------------------------------------------------
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// CUsbPnIsaSender::TryToSendPacket
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// ?implementation_description
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CUsbPnIsaSender::TryToSendPacket( CUsbPnPacket& aPacket )
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    {
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    OstTrace1( TRACE_API, CUSBPNISASENDER_TRYTOSENDPACKET_ENTRY, "CUsbPnIsaSender::TryToSendPacket;aPacket=%x", ( TUint )&( aPacket ) );
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    A_TRACE( ( _T( "CUsbPnIsaSender::TryToSendPacket( aPacket:0x%x )" ), &aPacket ) );
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    if(!IsActive())
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        {
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        if( &aPacket == &iCurrentPacket->NextPacket() || &aPacket == iCurrentPacket )
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            {
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            OstTrace0( TRACE_DETAILED, CUSBPNISASENDER_TRYTOSENDPACKET, "CUsbPnIsaSender::TryToSendPacket - Send to ISA" );
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            E_TRACE( ( _T( "CUsbPnIsaSender::TryToSendPacket() - Send to ISA")));
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#ifdef EXTENDED_TRACE_FLAG
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            TInt i(0);
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            HBufC8& data(aPacket.Buffer());
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            while(i < data.Length() )
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                {
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                OstTraceExt2( TRACE_DETAILED, CUSBPNISASENDER_TRYTOSENDPACKET_DUP1, "CUsbPnIsaSender::Send([%d] = %x )", i, data[i] );
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                E_TRACE( ( _T( "CUsbPnIsaSender::Send([%d] = %x )" ), i, data[i] ) );
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                i++;
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                }
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#endif
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            iIscApi.Send( iStatus, aPacket.Buffer() );
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            SetActive();
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            }
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        else
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            {
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            TRACE_ASSERT_ALWAYS;
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            User::Panic(_L("USBPNSERVER"), KErrTotalLossOfPrecision);
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            }
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        }
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    else
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        {
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        OstTrace0( TRACE_DETAILED, CUSBPNISASENDER_TRYTOSENDPACKET_DUP2, "CUsbPnIsaSender::TryToSendPacket - Already sending" );
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        E_TRACE( ( _T( "CUsbPnIsaSender::TryToSendPacket() - Already sending")));
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        }
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    OstTrace0( TRACE_API, CUSBPNISASENDER_TRYTOSENDPACKET_EXIT, "CUsbPnIsaSender::TryToSendPacket - return void" );
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    A_TRACE( ( _T( "CUsbPnIsaSender::TryToSendPacket() - return void" ) ) );
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    }
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// ========================== OTHER EXPORTED FUNCTIONS =========================
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//  End of File