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 MEMSPYDRIVERLOGICALCHANHEAPWALKUSER_H

    19 #define MEMSPYDRIVERLOGICALCHANHEAPWALKUSER_H

    20 

    21 // System includes

    22 #include <e32cmn.h>

    23 #include <kern_priv.h>

    24 #ifdef __MARM__

    25 #include <arm.h>

    26 #endif

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

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

    29 

    30 // User includes

    31 #include "MemSpyDriverOpCodes.h"

    32 #include "MemSpyDriverHeapWalker.h"

    33 #include "MemSpyDriverObjectsInternal.h"

    34 #include "MemSpyDriverLogChanHeapBase.h"

    35 #include "MemSpyDriverEnumerationsInternal.h"

    36 

    37 // Classes referenced

    38 class DMemSpyDriverDevice;

    39 class TMemSpyDriverLogChanHeapWalkObserver;

    40 

    41 

    42 class DMemSpyDriverLogChanHeapWalkUser : public DMemSpyDriverLogChanHeapBase

    43 	{

    44 public:

    45 	DMemSpyDriverLogChanHeapWalkUser( DMemSpyDriverDevice& aDevice, DThread& aThread );

    46 	~DMemSpyDriverLogChanHeapWalkUser();

    47 

    48 private: // from DMemSpyDriverLogChanBase

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

    50     TBool IsHandler( TInt aFunction ) const;

    51 

    52 private: // Channel operation handlers

    53     TInt WalkHeapInit( TMemSpyDriverInternalWalkHeapParamsInit* aParams );

    54     TInt WalkHeapNextCell( TUint aTid, TMemSpyDriverInternalWalkHeapParamsCell* aParams );

    55     TInt WalkHeapClose();

    56     TInt WalkHeapReadCellData( TMemSpyDriverInternalWalkHeapCellDataReadParams* aParams);

    57     TInt WalkHeapGetCellInfo( TAny* aCellAddress, TMemSpyDriverInternalWalkHeapParamsCell* aParams );

    58         

    59 private: // Internal methods

    60     const TMemSpyDriverInternalWalkHeapParamsCell* CellInfoForAddressWithinCellRange( TAny* aAddress ) const;

    61     const TMemSpyDriverInternalWalkHeapParamsCell* CellInfoForSpecificAddress( TAny* aAddress ) const;

    62 

    63 private: // Heap walker callback

    64     TBool WalkerHandleHeapCell(TMemSpyDriverCellType aCellType, TAny* aCellAddress, TInt aLength, TInt aNestingLevel, TInt aAllocNumber );

    65 

    66 private:

    67     TBool iHeapWalkInitialised;

    68     TInt iWalkHeapCellIndex;

    69     RMemSpyDriverRHeapUser iWalkHeap;

    70 	RArray< TMemSpyDriverInternalWalkHeapParamsCell > iWalkHeapCells;

    71     TMemSpyDriverInternalWalkHeapParamsInit iHeapWalkInitialParameters;

    72 

    73 private:

    74     friend class TMemSpyDriverLogChanHeapWalkObserver;

    75 	};

    76 

    77 

    78 class TMemSpyDriverLogChanHeapWalkObserver : public MMemSpyHeapWalkerObserver

    79     {

    80 public:

    81     inline TMemSpyDriverLogChanHeapWalkObserver( DMemSpyDriverLogChanHeapWalkUser& aChannel )

    82         : iChannel( aChannel )

    83         {

    84         }

    85 

    86 public: // From MHeapWalkerObserver

    87     void HandleHeapWalkInit() { }

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

    89         {

    90         return iChannel.WalkerHandleHeapCell( aCellType, aCellAddress, aLength, aNestingLevel, aAllocNumber );

    91         }

    92 

    93 private:

    94     DMemSpyDriverLogChanHeapWalkUser& iChannel;

    95     };

    96 

    97 

    98 

    99 #endif