javauis/mmapi_qt/audiostreaming/src.mmf/cmmastreamrequest.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 14 May 2010 15:47:24 +0300
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/*
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* Copyright (c) 2002 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:  Request used to write or read data
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*
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*/
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//  INCLUDE FILES
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#include <logger.h>
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#include "CMMAStreamRequest.h"
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#include "MMMAStreamRequestListener.h"
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CMMAStreamRequest* CMMAStreamRequest::NewLC(MMMAStreamRequestListener* aListener)
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{
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    CMMAStreamRequest* self = new(ELeave)CMMAStreamRequest(aListener);
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    return self;
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}
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CMMAStreamRequest::~CMMAStreamRequest()
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{
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    Cancel();
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    delete iData;
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}
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TPtr8& CMMAStreamRequest::DataPtr()
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{
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    return iDataPtr;
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}
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void CMMAStreamRequest::CompleteRead(TInt aError)
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{
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    if (aError < KErrNone)
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    {
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        iListener->HandleError(this, aError);
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    }
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    else // OK
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    {
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        iListener->ReadComplete(this);
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    }
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}
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void CMMAStreamRequest::SetActive()
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{
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    CActive::SetActive();
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}
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TPckgBuf< TInt >& CMMAStreamRequest::RequestBuffer()
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{
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    return iRequestBuffer;
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}
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void CMMAStreamRequest::RunL()
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{
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    if (iStatus.Int() == KErrNone)
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    {
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        // data is processed, set ready for reuse
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        iDataPtr.SetLength(0);
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        iListener->WriteComplete(this);
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    }
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    else // error
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    {
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        iListener->HandleError(this, iStatus.Int());
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    }
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}
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TInt CMMAStreamRequest::RunError(TInt aError)
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{
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    iListener->HandleError(this, aError);
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    return KErrNone;
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}
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void CMMAStreamRequest::DoCancel()
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{
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    // Complete this request
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    TRequestStatus* s = &iStatus;
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    User::RequestComplete(s, KErrCancel);
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}
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CMMAStreamRequest::CMMAStreamRequest(MMMAStreamRequestListener* aListener):
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        CActive(EPriorityStandard),
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        iListener(aListener),
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        iDataPtr(NULL, 0)
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{
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    CActiveScheduler::Add(this);
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}
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void CMMAStreamRequest::ConstructL()
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{
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    iData = HBufC8::NewL(KMMAStreamRequestBufferSize);
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    iDataPtr.Set(iData->Des());
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}
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//  END OF FILE