usbmgmt/usbmgr/device/classdrivers/acm/classimplementation/ecacm/inc/ActiveWriter.h
/*
* Copyright (c) 1997-2010 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
#ifndef __ACTIVEWRITER_H__
#define __ACTIVEWRITER_H__
#include <e32base.h>
#ifndef __OVER_DUMMYUSBLDD__
#include <d32usbc.h>
#else
#include <dummyusblddapi.h>
#endif
class RDevUsbcClient;
class MWriteObserver;
NONSHARABLE_CLASS(CActiveWriter) : public CActive
/**
* Active object to post write requests on the LDD.
*/
{
public:
static CActiveWriter* NewL(MWriteObserver& aParent, RDevUsbcClient& aLdd, TEndpointNumber aEndpoint);
~CActiveWriter();
public:
void Write(const TDesC8& aDes,
TInt aLen,
TBool aZlp);
private:
CActiveWriter(MWriteObserver& aParent, RDevUsbcClient& aLdd, TEndpointNumber aEndpoint);
private: // from CActive
virtual void DoCancel();
virtual void RunL();
private: // unowned
MWriteObserver& iParent;
RDevUsbcClient& iLdd;
private: // owned
TEndpointNumber iEndpoint;
enum TWritingState
{
EFirstMessagePart,
EFinalMessagePart,
ECompleteMessage,
};
enum
{
KMaxPacketSize = 64,
};
TWritingState iWritingState;
TPtrC8 iFirstPortion;
TPtrC8 iSecondPortion;
};
#endif // __ACTIVEWRITER_H__