author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 02:45:59 +0300 | |
changeset 55 | f2950aff7424 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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#include "MemSpyDriverLogChanHeapDataUser.h" |
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|
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// System includes |
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#include <u32hal.h> |
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#include <e32rom.h> |
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#include <memspy/driver/memspydriverconstants.h> |
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#include <memspy/driver/memspydriverobjectsshared.h> |
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|
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// Shared includes |
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#include "MemSpyDriverOpCodes.h" |
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#include "MemSpyDriverObjectsInternal.h" |
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// User includes |
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#include "MemSpyDriverLogChanHeapDataBase.h" |
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#include "MemSpyDriverHeap.h" |
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#include "MemSpyDriverUtils.h" |
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#include "MemSpyDriverDevice.h" |
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#include "MemSpyDriverOSAdaption.h" |
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#include "MemSpyDriverHeapWalker.h" |
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#include "MemSpyDriverUserEventMonitor.h" |
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#include "MemSpyDriverSuspensionManager.h" |
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DMemSpyDriverLogChanHeapDataBase::DMemSpyDriverLogChanHeapDataBase( DMemSpyDriverDevice& aDevice, DThread& aThread ) |
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: DMemSpyDriverLogChanHeapBase( aDevice, aThread ) |
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{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DMemSpyDriverLogChanHeapDataBase() - this: 0x%08x", this )); |
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} |
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|
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DMemSpyDriverLogChanHeapDataBase::~DMemSpyDriverLogChanHeapDataBase() |
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{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::~DMemSpyDriverLogChanHeapDataBase() - START - this: 0x%08x", this )); |
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ReleaseCellList(); |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::~DMemSpyDriverLogChanHeapDataBase() - END - this: 0x%08x", this )); |
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} |
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TInt DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() |
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{ |
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// Transfer free cells immediately from xfer stream |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - START - iHeapStream: 0x%08x", iHeapStream )); |
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__ASSERT_ALWAYS( !iHeapStream, MemSpyDriverUtils::PanicThread( ClientThread(), EPanicHeapFreeCellStreamNotClosed ) ); |
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// |
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TInt r = KErrNoMemory; |
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// |
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NKern::ThreadEnterCS(); |
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// |
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iHeapStream = new RMemSpyMemStreamWriter(); |
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if ( iHeapStream ) |
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{ |
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const TInt requiredMemory = CalculateCellListBufferSize(); |
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r = OpenXferStream( *iHeapStream, requiredMemory ); |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - requested %d bytes for free cell list, r: %d", requiredMemory, r )); |
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if ( r == KErrNone ) |
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{ |
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const TInt count = iCellList.Count(); |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - cell count: %d", count )); |
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// |
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iHeapStream->WriteInt32( count ); |
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for( TInt i=0; i<count; i++ ) |
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{ |
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const TMemSpyDriverCell& cell = iCellList[ i ]; |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - storing entry: %d", i )); |
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// |
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iHeapStream->WriteInt32( cell.iType ); |
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iHeapStream->WriteUint32( reinterpret_cast<TUint32>( cell.iAddress ) ); |
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iHeapStream->WriteInt32( cell.iLength ); |
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} |
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|
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// Finished with the array now |
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iCellList.Reset(); |
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|
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// We return the amount of client-side memory that needs to be allocated to hold the buffer |
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r = requiredMemory; |
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} |
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} |
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// |
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NKern::ThreadLeaveCS(); |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - END - r: %d", r)); |
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return r; |
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} |
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TInt DMemSpyDriverLogChanHeapDataBase::FetchCellList( TDes8* aBufferSink ) |
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{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::FetchCellList() - START - iHeapStream: 0x%08x", iHeapStream )); |
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__ASSERT_ALWAYS( iHeapStream, MemSpyDriverUtils::PanicThread( ClientThread(), EPanicHeapFreeCellStreamNotOpen ) ); |
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104 |
|
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TInt r = KErrNone; |
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106 |
|
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// Write buffer to client |
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NKern::ThreadEnterCS(); |
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r = iHeapStream->WriteAndClose( aBufferSink ); |
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110 |
|
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// Tidy up |
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ReleaseCellList(); |
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113 |
|
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NKern::ThreadLeaveCS(); |
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// |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::FetchCellList() - END - r: %d", r)); |
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return r; |
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} |
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119 |
|
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120 |
|
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121 |
|
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TInt DMemSpyDriverLogChanHeapDataBase::CalculateCellListBufferSize() const |
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123 |
{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::CalculateCellListBufferSize() - START" )); |
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125 |
|
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const TInt count = iCellList.Count(); |
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const TInt entrySize = sizeof( TInt32 ) + sizeof( TInt32 ) + sizeof( TUint32 ); |
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const TInt r = ( count * entrySize ) + sizeof( TInt ); // Extra TInt to hold count |
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|
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::CalculateCellListBufferSize() - END - r: %d, count: %d, entrySize: %d", r, count, entrySize )); |
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return r; |
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} |
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133 |
|
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134 |
|
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135 |
|
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void DMemSpyDriverLogChanHeapDataBase::ReleaseCellList() |
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137 |
{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::ReleaseCellList() - START - this: 0x%08x", this )); |
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139 |
|
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NKern::ThreadEnterCS(); |
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iCellList.Reset(); |
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delete iHeapStream; |
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iHeapStream = NULL; |
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NKern::ThreadLeaveCS(); |
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145 |
|
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::ReleaseCellList() - END - this: 0x%08x", this )); |
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} |
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|
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TBool DMemSpyDriverLogChanHeapDataBase::HandleHeapCell(TMemSpyDriverCellType aCellType, TAny* aCellAddress, TInt aLength, TInt /*aNestingLevel*/, TInt /*aAllocNumber*/) |
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150 |
{ |
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TInt err = KErrNone; |
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if (((aCellType & EMemSpyDriverFreeCellMask) && iHeapInfoParams.iBuildFreeCellList) || |
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((aCellType & EMemSpyDriverAllocatedCellMask) && iHeapInfoParams.iBuildAllocCellList)) |
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{ |
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TMemSpyDriverCell cell; |
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cell.iType = aCellType; |
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cell.iAddress = aCellAddress; |
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cell.iLength = aLength; |
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|
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NKern::ThreadEnterCS(); |
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err = iCellList.Append(cell); |
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NKern::ThreadLeaveCS(); |
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} |
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return err == KErrNone; |
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} |
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166 |
|
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void DMemSpyDriverLogChanHeapDataBase::HandleHeapWalkInit() |
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168 |
{ |
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} |
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|
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TInt DMemSpyDriverLogChanHeapDataBase::GetFullData( TMemSpyDriverInternalHeapDataParams* aParams ) |
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172 |
{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::GetFullData() - START")); |
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|
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TMemSpyDriverInternalHeapDataParams params; |
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TInt r = Kern::ThreadRawRead( &ClientThread(), aParams, ¶ms, sizeof(TMemSpyDriverInternalHeapDataParams) ); |
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// |
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if ( r == KErrNone ) |
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{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::GetFullData - thread id: %d, remaining: %8d, vtable: 0x%08x", params.iTid, params.iRemaining, params.iRHeapVTable)); |
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|
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// NB: The two 'get heap data' functions return either an error ( < KErrNone ) or then |
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// return the length of the descriptor data that was written to the client's address |
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// space. |
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// |
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r = GetFullData( params ); |
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|
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// Write back to user space if everything went okay. Remember that the |
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// return value above will be the length of data that was written to the |
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// client if there was no error. |
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if ( r >= KErrNone ) |
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{ |
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const TInt clientDescriptorLength = r; |
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|
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// Make sure we update client's remaining data |
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r = Kern::ThreadRawWrite( &ClientThread(), aParams, ¶ms, sizeof(TMemSpyDriverInternalHeapDataParams) ); |
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|
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// ... and if that went okay, then we return the length of the descriptor data |
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// back to the client. |
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if ( r == KErrNone ) |
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{ |
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r = clientDescriptorLength; |
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} |
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} |
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} |
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else |
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{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::GetFullData - params read error: %d", r)); |
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} |
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|
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// Done |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::GetFullData() - END - ret: %d", r)); |
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return r; |
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} |
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|
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TInt DMemSpyDriverLogChanHeapDataBase::DoGetFullData(TMemSpyDriverInternalHeapDataParams& aParams, |
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DThread* aThread, |
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RMemSpyDriverRHeapBase& aHeap) |
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{ |
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TInt r = KErrNone; |
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if ( aParams.iChecksum != 0 ) |
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{ |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - checksum validation requested - expecting: 0x%08x", aParams.iChecksum ) ); |
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|
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RMemSpyDriverHeapWalker heapWalker(aHeap); |
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|
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - starting traversal..." )); |
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#if ( defined( TRACE_TYPE_USERHEAP ) && defined( TRACE_TYPE_HEAPWALK ) ) |
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heapWalker.SetPrintDebug(); |
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#endif |
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r = heapWalker.Traverse(); |
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const TUint32 calculatedChecksum = heapWalker.Stats().iFreeCellCRC; |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - finished traversal - err: %d, checksum: 0x%08x", r, calculatedChecksum )); |
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|
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - comparing CALCULATED: 0x%08x vs EXPECTED: 0x%08x", calculatedChecksum, aParams.iChecksum )); |
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if ( calculatedChecksum != aParams.iChecksum ) |
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{ |
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Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - comparing CALCULATED: 0x%08x vs EXPECTED: 0x%08x for thread %O", calculatedChecksum, aParams.iChecksum, aThread ); |
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r = KErrCorrupt; |
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} |
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} |
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|
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// Get user side (MemSpyApp) descriptor length info |
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if ( r == KErrNone ) |
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{ |
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TInt destLen = 0; |
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TInt destMax = 0; |
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TUint8* destPtr = NULL; |
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r = Kern::ThreadGetDesInfo( &ClientThread(), aParams.iDes, destLen, destMax, destPtr, ETrue ); |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - user side descriptor: 0x%08x (0x%08x), len: %8d, maxLen: %8d, r: %d", aParams.iDes, destPtr, destLen, destMax, r )); |
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destMax = destMax & ~(KPageSize-1); // Round down dest max to page size |
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if (destMax <= 0 || (aParams.iReadAddress & (KPageSize-1))) |
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{ |
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// If destMax is less than a page or the read address isn't a multiple of page size then we don't want to know |
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r = KErrArgument; |
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} |
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|
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if ( r == KErrNone ) |
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{ |
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const TLinAddr chunkBase = aHeap.ChunkBase(); |
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const TLinAddr chunkMaxAddr = chunkBase + OSAdaption().DChunk().GetMaxSize(aHeap.Chunk()); |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - chunkBase: 0x%08x", chunkBase) ); |
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|
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TLinAddr readAddress = aParams.iReadAddress; |
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if (aParams.iRemaining < 0 ) |
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{ |
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// Initial case, start from the bottom |
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readAddress = chunkBase; |
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aParams.iRemaining = aHeap.Helper()->CommittedSize(); |
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} |
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|
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// The remaining number of bytes should allow us to calculate the position |
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// to read from. |
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TInt amountToRead = Min( aParams.iRemaining, destMax ); |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - amountToRead: %8d", amountToRead) ); |
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|
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// Do the read from the heap we are spying on into MemSpy's address space |
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do |
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{ |
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r = Kern::ThreadRawRead( aThread, (const void*)readAddress, destPtr, amountToRead ); |
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TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - reading %d bytes starting at 0x%08x result: %d", |
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amountToRead, readAddress, r) ); |
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|
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if (r == KErrBadDescriptor) |
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{ |
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// This is not necessarily an error - it could be we've hit an unmapped page |
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if (amountToRead > KPageSize) |
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{ |
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// retry reading a single page instead |
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amountToRead = KPageSize; |
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} |
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else |
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293 |
{ |
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// Try the next page |
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readAddress += KPageSize; |
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} |
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} |
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} while (r == KErrBadDescriptor && readAddress < chunkMaxAddr); |
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// |
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if (r == KErrNone) |
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{ |
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// Client takes care of updating descriptor length. |
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r = amountToRead; |
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} |
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305 |
|
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// Update remaining bytes |
f2950aff7424
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
307 |
aParams.iRemaining -= amountToRead; |
f2950aff7424
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
308 |
aParams.iReadAddress = readAddress; |
f2950aff7424
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
309 |
} |
f2950aff7424
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
310 |
} |
f2950aff7424
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
311 |
return r; |
f2950aff7424
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
312 |
} |