1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include "asyncwriter.h"

    17 

    18 

    19 CAsyncWriter* CAsyncWriter::NewL(CQoSMsgWriter* aWriter)

    20 	{

    21 	CAsyncWriter* self = new (ELeave) CAsyncWriter(aWriter);

    22 	CleanupStack::PushL(self);

    23 	self->ConstructL();

    24 	CleanupStack::Pop(self);

    25 	return self;

    26 	}

    27 	

    28 CAsyncWriter::CAsyncWriter(CQoSMsgWriter* aWriter) :

    29 	CActive(EPriorityNormal),

    30 	iWriter(aWriter)

    31 	{

    32         iPendingMsg.SetOffset(_FOFF(CQoSMsg, iLink));

    33         }

    34 

    35 void CAsyncWriter::ConstructL()

    36 	{

    37 	CActiveScheduler::Add(this);

    38 	}

    39 

    40 void CAsyncWriter::Send(CQoSMsg* aMessage)

    41 	{

    42 	if (IsActive())

    43  		{

    44  		iPendingMsg.AddLast(*aMessage);

    45  		}

    46  	else

    47  		{

    48  		iWriter->Send(aMessage);

    49  		SetActive();

    50  		TRequestStatus* stat = &iStatus;

    51  		User::RequestComplete(stat,KErrNone);

    52  		}

    53 	}

    54 	

    55 void CAsyncWriter::RunL()

    56 	{

    57 	ASSERT(iWriter);

    58 	if (!iPendingMsg.IsEmpty())

    59  		{

    60  		CQoSMsg* msg = iPendingMsg.First();

    61  		iPendingMsg.Remove(*msg);

    62  		iWriter->Send(msg);

    63  		SetActive();

    64  		}

    65 	}

    66 	

    67 void CAsyncWriter::DoCancel()

    68 	{

    69 	//No code needed here becuase the request is completed immediately on activation

    70 	}