--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/perfsrv/memspy/Driver/Kernel/Source/SubChannels/MemSpyDriverLogChanHeapDataBase.cpp Mon Oct 04 02:45:59 2010 +0300
@@ -0,0 +1,312 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#include "MemSpyDriverLogChanHeapDataUser.h"
+
+// System includes
+#include <u32hal.h>
+#include <e32rom.h>
+#include <memspy/driver/memspydriverconstants.h>
+#include <memspy/driver/memspydriverobjectsshared.h>
+
+// Shared includes
+#include "MemSpyDriverOpCodes.h"
+#include "MemSpyDriverObjectsInternal.h"
+
+// User includes
+#include "MemSpyDriverLogChanHeapDataBase.h"
+#include "MemSpyDriverHeap.h"
+#include "MemSpyDriverUtils.h"
+#include "MemSpyDriverDevice.h"
+#include "MemSpyDriverOSAdaption.h"
+#include "MemSpyDriverHeapWalker.h"
+#include "MemSpyDriverUserEventMonitor.h"
+#include "MemSpyDriverSuspensionManager.h"
+
+DMemSpyDriverLogChanHeapDataBase::DMemSpyDriverLogChanHeapDataBase( DMemSpyDriverDevice& aDevice, DThread& aThread )
+: DMemSpyDriverLogChanHeapBase( aDevice, aThread )
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DMemSpyDriverLogChanHeapDataBase() - this: 0x%08x", this ));
+ }
+
+DMemSpyDriverLogChanHeapDataBase::~DMemSpyDriverLogChanHeapDataBase()
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::~DMemSpyDriverLogChanHeapDataBase() - START - this: 0x%08x", this ));
+ ReleaseCellList();
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::~DMemSpyDriverLogChanHeapDataBase() - END - this: 0x%08x", this ));
+ }
+
+TInt DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer()
+ {
+ // Transfer free cells immediately from xfer stream
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - START - iHeapStream: 0x%08x", iHeapStream ));
+ __ASSERT_ALWAYS( !iHeapStream, MemSpyDriverUtils::PanicThread( ClientThread(), EPanicHeapFreeCellStreamNotClosed ) );
+ //
+ TInt r = KErrNoMemory;
+ //
+ NKern::ThreadEnterCS();
+ //
+ iHeapStream = new RMemSpyMemStreamWriter();
+ if ( iHeapStream )
+ {
+ const TInt requiredMemory = CalculateCellListBufferSize();
+ r = OpenXferStream( *iHeapStream, requiredMemory );
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - requested %d bytes for free cell list, r: %d", requiredMemory, r ));
+
+ if ( r == KErrNone )
+ {
+ const TInt count = iCellList.Count();
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - cell count: %d", count ));
+ //
+ iHeapStream->WriteInt32( count );
+ for( TInt i=0; i<count; i++ )
+ {
+ const TMemSpyDriverCell& cell = iCellList[ i ];
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - storing entry: %d", i ));
+ //
+ iHeapStream->WriteInt32( cell.iType );
+ iHeapStream->WriteUint32( reinterpret_cast<TUint32>( cell.iAddress ) );
+ iHeapStream->WriteInt32( cell.iLength );
+ }
+
+ // Finished with the array now
+ iCellList.Reset();
+
+ // We return the amount of client-side memory that needs to be allocated to hold the buffer
+ r = requiredMemory;
+ }
+ }
+ //
+ NKern::ThreadLeaveCS();
+
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::PrepareCellListTransferBuffer() - END - r: %d", r));
+ return r;
+ }
+
+TInt DMemSpyDriverLogChanHeapDataBase::FetchCellList( TDes8* aBufferSink )
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::FetchCellList() - START - iHeapStream: 0x%08x", iHeapStream ));
+ __ASSERT_ALWAYS( iHeapStream, MemSpyDriverUtils::PanicThread( ClientThread(), EPanicHeapFreeCellStreamNotOpen ) );
+
+ TInt r = KErrNone;
+
+ // Write buffer to client
+ NKern::ThreadEnterCS();
+ r = iHeapStream->WriteAndClose( aBufferSink );
+
+ // Tidy up
+ ReleaseCellList();
+
+ NKern::ThreadLeaveCS();
+ //
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::FetchCellList() - END - r: %d", r));
+ return r;
+ }
+
+
+
+TInt DMemSpyDriverLogChanHeapDataBase::CalculateCellListBufferSize() const
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::CalculateCellListBufferSize() - START" ));
+
+ const TInt count = iCellList.Count();
+ const TInt entrySize = sizeof( TInt32 ) + sizeof( TInt32 ) + sizeof( TUint32 );
+ const TInt r = ( count * entrySize ) + sizeof( TInt ); // Extra TInt to hold count
+
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::CalculateCellListBufferSize() - END - r: %d, count: %d, entrySize: %d", r, count, entrySize ));
+ return r;
+ }
+
+
+
+void DMemSpyDriverLogChanHeapDataBase::ReleaseCellList()
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::ReleaseCellList() - START - this: 0x%08x", this ));
+
+ NKern::ThreadEnterCS();
+ iCellList.Reset();
+ delete iHeapStream;
+ iHeapStream = NULL;
+ NKern::ThreadLeaveCS();
+
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::ReleaseCellList() - END - this: 0x%08x", this ));
+ }
+
+TBool DMemSpyDriverLogChanHeapDataBase::HandleHeapCell(TMemSpyDriverCellType aCellType, TAny* aCellAddress, TInt aLength, TInt /*aNestingLevel*/, TInt /*aAllocNumber*/)
+ {
+ TInt err = KErrNone;
+ if (((aCellType & EMemSpyDriverFreeCellMask) && iHeapInfoParams.iBuildFreeCellList) ||
+ ((aCellType & EMemSpyDriverAllocatedCellMask) && iHeapInfoParams.iBuildAllocCellList))
+ {
+ TMemSpyDriverCell cell;
+ cell.iType = aCellType;
+ cell.iAddress = aCellAddress;
+ cell.iLength = aLength;
+
+ NKern::ThreadEnterCS();
+ err = iCellList.Append(cell);
+ NKern::ThreadLeaveCS();
+ }
+ return err == KErrNone;
+ }
+
+void DMemSpyDriverLogChanHeapDataBase::HandleHeapWalkInit()
+ {
+ }
+
+TInt DMemSpyDriverLogChanHeapDataBase::GetFullData( TMemSpyDriverInternalHeapDataParams* aParams )
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::GetFullData() - START"));
+
+ TMemSpyDriverInternalHeapDataParams params;
+ TInt r = Kern::ThreadRawRead( &ClientThread(), aParams, ¶ms, sizeof(TMemSpyDriverInternalHeapDataParams) );
+ //
+ if ( r == KErrNone )
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::GetFullData - thread id: %d, remaining: %8d, vtable: 0x%08x", params.iTid, params.iRemaining, params.iRHeapVTable));
+
+ // NB: The two 'get heap data' functions return either an error ( < KErrNone ) or then
+ // return the length of the descriptor data that was written to the client's address
+ // space.
+ //
+ r = GetFullData( params );
+
+ // Write back to user space if everything went okay. Remember that the
+ // return value above will be the length of data that was written to the
+ // client if there was no error.
+ if ( r >= KErrNone )
+ {
+ const TInt clientDescriptorLength = r;
+
+ // Make sure we update client's remaining data
+ r = Kern::ThreadRawWrite( &ClientThread(), aParams, ¶ms, sizeof(TMemSpyDriverInternalHeapDataParams) );
+
+ // ... and if that went okay, then we return the length of the descriptor data
+ // back to the client.
+ if ( r == KErrNone )
+ {
+ r = clientDescriptorLength;
+ }
+ }
+ }
+ else
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::GetFullData - params read error: %d", r));
+ }
+
+ // Done
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::GetFullData() - END - ret: %d", r));
+ return r;
+ }
+
+TInt DMemSpyDriverLogChanHeapDataBase::DoGetFullData(TMemSpyDriverInternalHeapDataParams& aParams,
+ DThread* aThread,
+ RMemSpyDriverRHeapBase& aHeap)
+ {
+ TInt r = KErrNone;
+ if ( aParams.iChecksum != 0 )
+ {
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - checksum validation requested - expecting: 0x%08x", aParams.iChecksum ) );
+
+ RMemSpyDriverHeapWalker heapWalker(aHeap);
+
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - starting traversal..." ));
+#if ( defined( TRACE_TYPE_USERHEAP ) && defined( TRACE_TYPE_HEAPWALK ) )
+ heapWalker.SetPrintDebug();
+#endif
+ r = heapWalker.Traverse();
+ const TUint32 calculatedChecksum = heapWalker.Stats().iFreeCellCRC;
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - finished traversal - err: %d, checksum: 0x%08x", r, calculatedChecksum ));
+
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - comparing CALCULATED: 0x%08x vs EXPECTED: 0x%08x", calculatedChecksum, aParams.iChecksum ));
+ if ( calculatedChecksum != aParams.iChecksum )
+ {
+ Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - comparing CALCULATED: 0x%08x vs EXPECTED: 0x%08x for thread %O", calculatedChecksum, aParams.iChecksum, aThread );
+ r = KErrCorrupt;
+ }
+ }
+
+ // Get user side (MemSpyApp) descriptor length info
+ if ( r == KErrNone )
+ {
+ TInt destLen = 0;
+ TInt destMax = 0;
+ TUint8* destPtr = NULL;
+ r = Kern::ThreadGetDesInfo( &ClientThread(), aParams.iDes, destLen, destMax, destPtr, ETrue );
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - user side descriptor: 0x%08x (0x%08x), len: %8d, maxLen: %8d, r: %d", aParams.iDes, destPtr, destLen, destMax, r ));
+ destMax = destMax & ~(KPageSize-1); // Round down dest max to page size
+ if (destMax <= 0 || (aParams.iReadAddress & (KPageSize-1)))
+ {
+ // 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
+ r = KErrArgument;
+ }
+
+ if ( r == KErrNone )
+ {
+ const TLinAddr chunkBase = aHeap.ChunkBase();
+ const TLinAddr chunkMaxAddr = chunkBase + OSAdaption().DChunk().GetMaxSize(aHeap.Chunk());
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - chunkBase: 0x%08x", chunkBase) );
+
+ TLinAddr readAddress = aParams.iReadAddress;
+ if (aParams.iRemaining < 0 )
+ {
+ // Initial case, start from the bottom
+ readAddress = chunkBase;
+ aParams.iRemaining = aHeap.Helper()->CommittedSize();
+ }
+
+ // The remaining number of bytes should allow us to calculate the position
+ // to read from.
+ TInt amountToRead = Min( aParams.iRemaining, destMax );
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - amountToRead: %8d", amountToRead) );
+
+ // Do the read from the heap we are spying on into MemSpy's address space
+ do
+ {
+ r = Kern::ThreadRawRead( aThread, (const void*)readAddress, destPtr, amountToRead );
+ TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataBase::DoGetFullData - reading %d bytes starting at 0x%08x result: %d",
+ amountToRead, readAddress, r) );
+
+ if (r == KErrBadDescriptor)
+ {
+ // This is not necessarily an error - it could be we've hit an unmapped page
+ if (amountToRead > KPageSize)
+ {
+ // retry reading a single page instead
+ amountToRead = KPageSize;
+ }
+ else
+ {
+ // Try the next page
+ readAddress += KPageSize;
+ }
+ }
+ } while (r == KErrBadDescriptor && readAddress < chunkMaxAddr);
+ //
+ if (r == KErrNone)
+ {
+ // Client takes care of updating descriptor length.
+ r = amountToRead;
+ }
+
+ // Update remaining bytes
+ aParams.iRemaining -= amountToRead;
+ aParams.iReadAddress = readAddress;
+ }
+ }
+ return r;
+ }