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 MEMSPYDRIVERLOGICALCHANHEAPBASE_H

    19 #define MEMSPYDRIVERLOGICALCHANHEAPBASE_H

    20 

    21 // System includes

    22 #include <kern_priv.h>

    23 #include <memspy/driver/memspydriverobjectsshared.h>

    24 #include <memspy/driver/memspydriverenumerationsshared.h>

    25 

    26 // User includes

    27 #include "MemSpyDriverOpCodes.h"

    28 #include "MemSpyDriverLogChanBase.h"

    29 #include "MemSpyDriverObjectsInternal.h"

    30 #include "MemSpyDriverHeapWalker.h"

    31 #include "MemSpyDriverEnumerationsInternal.h"

    32 

    33 // Classes referenced

    34 class TMemSpyHeapInfo;

    35 class DMemSpyDriverDevice;

    36 class RMemSpyDriverRHeapUser;

    37 class RMemSpyMemStreamWriter;

    38 class RMemSpyDriverRHeapKernelInPlace;

    39 class RMemSpyDriverRHeapKernelFromCopy;

    40 

    41 

    42 class DMemSpyDriverLogChanHeapBase : public DMemSpyDriverLogChanBase, public MMemSpyHeapWalkerObserver

    43 	{

    44 public:

    45     enum TDrmMatchType

    46         {

    47         EMatchTypeNone = 0,

    48         EMatchTypeName,

    49         EMatchTypeUid

    50         };

    51 public:

    52 	~DMemSpyDriverLogChanHeapBase();

    53 

    54 protected:

    55 	DMemSpyDriverLogChanHeapBase( DMemSpyDriverDevice& aDevice, DThread& aThread );

    56     TInt Construct();

    57 

    58 protected: // From DMemSpyDriverLogChanBase

    59     TInt Request( TInt aFunction, TAny* a1, TAny* a2 );

    60 

    61 protected: // Capability checks for heap access

    62     TDrmMatchType IsDrmThread( DThread& aThread );

    63 

    64 protected: // From MHeapWalkerObserver

    65     void HandleHeapWalkInit();

    66     TBool HandleHeapCell( TMemSpyDriverCellType aCellType, TAny* aCellAddress, TInt aLength, TInt aNestingLevel, TInt aAllocNumber );

    67 

    68 protected: // Heap utility functions

    69     TInt OpenKernelHeap( RHeapK*& aHeap, DChunk*& aChunk, TDes8* aClientHeapChunkName = NULL );

    70     TInt OpenKernelHeap( RMemSpyDriverRHeapKernelFromCopy& aHeap, TDes8* aClientHeapChunkName = NULL );

    71     TInt GetHeapInfoKernel(RMemSpyDriverRHeapBase& aHeap, TMemSpyHeapInfo* aHeapInfo, TDes8* aTransferBuffer);

    72     void PrintHeapInfo( const TMemSpyHeapInfo& aInfo );

    73 

    74 private: // Data members

    75 

    76     // Points to stack-based object whilst walking in progress

    77     RMemSpyMemStreamWriter* iStackStream;

    78     TInt iFreeCellCount;

    79 	};

    80 

    81 

    82 #endif