/*

* Copyright (c) 2006 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:  Implementation of array of fixed size elements on global chunk

*

*/

#include "mpxfixedarray.h"

#include "mpxheapmanager.h"

// -----------------------------------------------------------------------------

// RMPXFixedArrayBase::RMPXFixedArrayBase

// -----------------------------------------------------------------------------

//

RMPXFixedArrayBase::RMPXFixedArrayBase()

    {    

    }

// -----------------------------------------------------------------------------

// RMPXFixedArrayBase::RMPXFixedArrayBase

// -----------------------------------------------------------------------------

//

RMPXFixedArrayBase::RMPXFixedArrayBase(const RMPXFixedArrayBase& aArray)

     : iCount(0),iDataOffset(0),iElementSize(aArray.iElementSize)

    {     

    (void)Copy(RMPXHeapManager::ClientHandle(),aArray);

    }

// -----------------------------------------------------------------------------

// RMPXFixedArrayBase::Set

// -----------------------------------------------------------------------------

//

TInt RMPXFixedArrayBase::Copy(TUint aClientHandle,const RMPXFixedArrayBase& aArray)

    {  

    MPX_ASSERT(aArray.iElementSize&&aArray.iCount&&aArray.iDataOffset&&aClientHandle);  

    // 

    Reset(aClientHandle); // Clears any current values

    TInt size=aArray.iElementSize*aArray.iCount;

    RMPXHeapManager& m=RMPXHeapManager::HeapManager(aClientHandle);

    TInt r=m.Copy(aClientHandle,aArray.iDataOffset,size);    

    if (r>0) // Its an offset

        {

        iDataOffset=r;

        iCount=aArray.iCount;

        iElementSize=aArray.iElementSize; 

        }

    // else the members are zero from Reset()

    return iDataOffset?KErrNone:KErrNoMemory; 

    }    

// -----------------------------------------------------------------------------

// RMPXFixedArrayBase::RMPXFixedArrayBase

// -----------------------------------------------------------------------------

//

RMPXFixedArrayBase::RMPXFixedArrayBase(TInt aElementSize)

    : iCount(0),iDataOffset(0),iElementSize(aElementSize)

    {    

    }

// -----------------------------------------------------------------------------

// RMPXFixedArrayBase::Reset

// -----------------------------------------------------------------------------

//

void RMPXFixedArrayBase::Reset(TUint aClientHandle)

    {

    if (iDataOffset)

        {

        TAny* buf=RMPXHeapManager::Ptr<TAny>(aClientHandle,iDataOffset);

        RMPXHeapManager::HeapManager(aClientHandle).Free(aClientHandle,buf);

        iDataOffset=0;

        iCount=0;

        }

    }

// -----------------------------------------------------------------------------

// RMPXFixedArrayBase::Alloc

// -----------------------------------------------------------------------------

//

TAny* RMPXFixedArrayBase::Alloc(TUint aClientHandle,TInt aCount)

    {

    Reset(aClientHandle); // Clear previous values

    TInt size=iElementSize*aCount;

    TAny* ptr=RMPXHeapManager::HeapManager(aClientHandle).Alloc(aClientHandle,size);

    if (ptr)

        {

        iDataOffset=RMPXHeapManager::Offset(aClientHandle,ptr);

        iCount=aCount;

        }    

    return ptr;

    }

// End of file