1 /*

     2 * Copyright (c) 2009 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:

    15 *

    16 */

    17 

    18 #ifndef MEMSPYDRIVERHEAPSTATISTICS_H

    19 #define MEMSPYDRIVERHEAPSTATISTICS_H

    20 

    21 // System includes

    22 #include <e32cmn.h>

    23 

    24 

    25 class TMemSpyHeapWalkStatistics

    26     {

    27 public:

    28 

    29     // Total number of cells enumerated

    30     TInt iNumberOfWalkedCells;

    31 

    32     // The type of the last cell

    33     TMemSpyDriverCellType iLastCellType;

    34 

    35     // The address of the last cell

    36     TLinAddr iLastCellAddress;

    37 

    38 public: // Free cell related

    39 

    40     // The address of the first free heap cell

    41     TLinAddr iFirstFreeCellAddress;

    42     

    43     // The length of the first free heap cell

    44     TUint iFirstFreeCellLength;

    45 

    46     // Whether the last cell in the entire heap was a free cell

    47     // (i.e. slack space)

    48     TBool iLastCellWasFreeCell;

    49 

    50     // The length of the last free cell in the heap

    51     TUint iLastFreeCellLength;

    52 

    53     // The total amount of free space in the heap

    54     TUint iTotalFreeSpace;

    55 

    56     // The number of free heap cells

    57     TUint iFreeCellCount;

    58 

    59     // The size of the largest free cell

    60     TUint iLargestCellSizeFree;

    61 

    62     // The previous largest free cell size

    63     TUint iLargestCellSizeFreePrevious;

    64 

    65     // The address of the largest free cell

    66     TLinAddr iLargestCellAddressFree;

    67 

    68     // The previous address of the largest free cell

    69     TUint iLargestCellAddressFreePrevious;

    70 

    71     // The overhead associated with a free cell (header length)

    72     TUint iFreeCellOverheadHeaderLength;

    73 

    74     // The slace space at the end of the heap

    75     TUint iSlackSpace;

    76 

    77     // The address of the slack space cell

    78     TLinAddr iSpackSpaceCellAddress;

    79 

    80     // A very simple XOR checksum of all the free cell addresses that were

    81     // detected during the heap navigation

    82     TUint32 iFreeCellCRC;

    83 

    84 public: // Alloc cell related

    85 

    86     // The number of allocated heap cells

    87     TUint iAllocCellCount;

    88 

    89     // The size of the largest allocated cell

    90     TUint iLargestCellSizeAlloc;

    91 

    92     // The address of the largest allocated cell

    93     TLinAddr iLargestCellAddressAlloc;

    94    

    95     // The overhead associated with an allocated cell (header length)

    96     TUint iAllocCellOverheadHeaderLength;

    97 

    98 public: // Common

    99 

   100     // The total amount of allocated space in the heap

   101     TUint iTotalAllocSpace;

   102     };

   103 

   104 

   105 

   106 #endif