devsoundextensions/mmfcustominterfaces/Ra8DecoderIntfc/Ra8DecoderIntfcMsgHdlr/src/ra8custominterfacemsghdlr.cpp
author hgs
Tue, 02 Nov 2010 12:13:59 +0000
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parent 0 b8ed18f6c07b
permissions -rw-r--r--
2010wk46_01
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/*
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* Copyright (c) 2002-2007 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:   Message handler for RA8 decoder custom interface.
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*
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*/
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// INCLUDE FILES
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#include    <Ra8CustomInterface.h>
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#include    "Ra8CustomInterfaceMsgHdlr.h"
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#include    "Ra8CustomInterfaceMsgs.h"
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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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// CRa8CustomInterfaceMsgHdlr::CRa8CustomInterfaceMsgHdlr
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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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CRa8CustomInterfaceMsgHdlr::CRa8CustomInterfaceMsgHdlr(
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                            CRa8CustomInterface* aRa8CustomInterface) :
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	CMMFObject(KUidRa8DecHwDeviceCI)
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    {
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    iRa8CustomInterface = aRa8CustomInterface;
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    }
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// -----------------------------------------------------------------------------
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// CRa8CustomInterfaceMsgHdlr::ConstructL
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// Symbian 2nd phase constructor can leave.
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// -----------------------------------------------------------------------------
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//
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void CRa8CustomInterfaceMsgHdlr::ConstructL()
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    {
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    }
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// -----------------------------------------------------------------------------
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// CRa8CustomInterfaceMsgHdlr::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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EXPORT_C CRa8CustomInterfaceMsgHdlr*
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    CRa8CustomInterfaceMsgHdlr::NewL(TAny*  aRa8CustomInterface)
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    {
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    CRa8CustomInterface* custominterface = 
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                         (CRa8CustomInterface*)aRa8CustomInterface;
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    CRa8CustomInterfaceMsgHdlr* self = 
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            new (ELeave) CRa8CustomInterfaceMsgHdlr(custominterface);
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop(self);
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// Destructor
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// -----------------------------------------------------------------------------
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//
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EXPORT_C CRa8CustomInterfaceMsgHdlr::~CRa8CustomInterfaceMsgHdlr()
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	{
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	}
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// -----------------------------------------------------------------------------
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// CRa8CustomInterfaceMsgHdlr::HandleRequest
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// Handles the messages from the proxy.
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// Calls a subfunction which determines which custom interface to call.
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// A subfunction is used to contain multiple leaving functions for a single
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// trap.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void CRa8CustomInterfaceMsgHdlr::HandleRequest(TMMFMessage& aMessage)
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	{
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	ASSERT(aMessage.Destination().InterfaceId() == KUidRa8DecHwDeviceCI);
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	TRAPD(error,DoHandleRequestL(aMessage));
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	if (error)
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		{
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		aMessage.Complete(error);
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		}
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	}
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// -----------------------------------------------------------------------------
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// CRa8CustomInterfaceMsgHdlr::DoHandleRequestL
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// Determines which custom interface to call.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CRa8CustomInterfaceMsgHdlr::DoHandleRequestL(TMMFMessage& aMessage)
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	{
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	switch (aMessage.Function())
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		{
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		case ERa8CiFrameNumber:
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			{
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    		DoFrameNumberL(aMessage);
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			break;
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			}
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		case ERa8CiSetInitString:
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			{
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    		DoSetInitStringL(aMessage);
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			break;
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			}
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		default:
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			{
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			aMessage.Complete(KErrNotSupported);
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			}
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		}
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	}
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// -----------------------------------------------------------------------------
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// CRa8CustomInterfaceMsgHdlr::DoFrameNumberL
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// Handles the message from the proxy and calls the custom interface method.
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// The data passed from the proxy is read from the message and passed to
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// the custom interface.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CRa8CustomInterfaceMsgHdlr::DoFrameNumberL(TMMFMessage& aMessage)
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    {
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	TInt frame = iRa8CustomInterface->FrameNumber();
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	TPckgBuf<TInt> pckg(frame);
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	aMessage.WriteDataToClientL(pckg);
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    aMessage.Complete(KErrNone);
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    }
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// -----------------------------------------------------------------------------
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// CRa8CustomInterfaceMsgHdlr::DoSetInitStringL
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// Handles the message from the proxy and calls the custom interface method.
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// The data passed from the proxy is read from the message and passed to
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// the custom interface.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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void CRa8CustomInterfaceMsgHdlr::DoSetInitStringL(TMMFMessage& aMessage)
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    {
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	TInt size = aMessage.SizeOfData1FromClient();
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	HBufC8* dataBuf = HBufC8::NewL(size);
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	CleanupStack::PushL( dataBuf );
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	TPtr8 dataPtr = dataBuf->Des();
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    aMessage.ReadData1FromClientL(dataPtr);
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	TInt status = iRa8CustomInterface->SetInitString(dataPtr);
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	CleanupStack::Pop(dataBuf);
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	delete dataBuf;
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    aMessage.Complete(status);
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    }
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// ========================== OTHER EXPORTED FUNCTIONS =========================
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// End of File