/*
* Copyright (c) 2009 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:
* This file contains implementation of SafeQueue template class popAll method.
*/
#include "safequeue.h"
#include "common.h"
/*
* This method is used to pop all of the elements in queue and return them in single Data object
*/
template <>
(Data*)& SafeQueue<Data*>::popAll(DWORD timeout)
throw (TimeoutException)
{
if (Semaphore::Wait(timeout) == WAIT_TIMEOUT)
{
throw TimeoutException("queue front timed out");
}
Mutex::Lock();
Data*& first = queue<Data*>::front();
queue<Data*>::pop();
//add to the first the rest of queue
bool s = true;
while ( queue<Data*>::size() > 0 && s)
{
Data*& a = queue<Data*>::front();
int len = first->GetLength();
first->AppendData( a ); //?????
if ( first->GetLength() != len )
{
queue<Data*>::pop();
delete a; //????
}
else
{
s = false;
}
}
Mutex::Unlock();
return first;
}