1 /*

     2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Implementation of array of fixed size elements on global chunk

    15 *

    16 */

    17 

    18 #include "mpxfixedarray.h"

    19 #include "mpxheapmanager.h"

    20 

    21 

    22 // -----------------------------------------------------------------------------

    23 // RMPXFixedArrayBase::RMPXFixedArrayBase

    24 // -----------------------------------------------------------------------------

    25 //

    26 RMPXFixedArrayBase::RMPXFixedArrayBase()

    27     {    

    28     }

    29 

    30 // -----------------------------------------------------------------------------

    31 // RMPXFixedArrayBase::RMPXFixedArrayBase

    32 // -----------------------------------------------------------------------------

    33 //

    34 RMPXFixedArrayBase::RMPXFixedArrayBase(const RMPXFixedArrayBase& aArray)

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

    36     {     

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

    38     }

    39     

    40 // -----------------------------------------------------------------------------

    41 // RMPXFixedArrayBase::Set

    42 // -----------------------------------------------------------------------------

    43 //

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

    45     {  

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

    47     // 

    48     Reset(aClientHandle); // Clears any current values

    49     TInt size=aArray.iElementSize*aArray.iCount;

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

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

    52     if (r>0) // Its an offset

    53         {

    54         iDataOffset=r;

    55         iCount=aArray.iCount;

    56         iElementSize=aArray.iElementSize; 

    57         }

    58     // else the members are zero from Reset()

    59     return iDataOffset?KErrNone:KErrNoMemory; 

    60     }    

    61 

    62 // -----------------------------------------------------------------------------

    63 // RMPXFixedArrayBase::RMPXFixedArrayBase

    64 // -----------------------------------------------------------------------------

    65 //

    66 RMPXFixedArrayBase::RMPXFixedArrayBase(TInt aElementSize)

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

    68     {    

    69     }

    70 

    71 // -----------------------------------------------------------------------------

    72 // RMPXFixedArrayBase::Reset

    73 // -----------------------------------------------------------------------------

    74 //

    75 void RMPXFixedArrayBase::Reset(TUint aClientHandle)

    76     {

    77     if (iDataOffset)

    78         {

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

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

    81         iDataOffset=0;

    82         iCount=0;

    83         }

    84     }

    85 

    86 // -----------------------------------------------------------------------------

    87 // RMPXFixedArrayBase::Alloc

    88 // -----------------------------------------------------------------------------

    89 //

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

    91     {

    92     Reset(aClientHandle); // Clear previous values

    93     TInt size=iElementSize*aCount;

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

    95     if (ptr)

    96         {

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

    98         iCount=aCount;

    99         }    

   100     return ptr;

   101     }

   102 

   103 // End of file