/*

* 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 "MemSpyDriverHeap.h"

#include "MemSpyDriverUtils.h"

#include "MemSpyDriverDevice.h"

#include "MemSpyDriverOSAdaption.h"

#include "MemSpyDriverHeapWalker.h"

#include "MemSpyDriverUserEventMonitor.h"

#include "MemSpyDriverSuspensionManager.h"

DMemSpyDriverLogChanHeapDataUser::DMemSpyDriverLogChanHeapDataUser( DMemSpyDriverDevice& aDevice, DThread& aThread )

:   DMemSpyDriverLogChanHeapDataBase( aDevice, aThread )

    {

    TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::DMemSpyDriverLogChanHeapDataUser() - this: 0x%08x", this ));

    }

TInt DMemSpyDriverLogChanHeapDataUser::Request( TInt aFunction, TAny* a1, TAny* a2 )

	{

	TInt r = DMemSpyDriverLogChanHeapBase::Request( aFunction, a1, a2 );

    if  ( r == KErrNone )

        {

        if  ( aFunction != EMemSpyDriverOpCodeHeapUserDataFetchCellList )

            {

            ReleaseCellList();

            }

        //

        switch( aFunction )

		    {

        case EMemSpyDriverOpCodeHeapUserDataGetInfo:

            r = GetInfoData( (TMemSpyDriverInternalHeapRequestParameters*) a1 );

            break;

        case EMemSpyDriverOpCodeHeapUserDataFetchCellList:

            r = FetchCellList( (TDes8*) a1 );

            break;

        case EMemSpyDriverOpCodeHeapUserDataGetFull:

            r = DMemSpyDriverLogChanHeapDataBase::GetFullData( (TMemSpyDriverInternalHeapDataParams*) a1 );

            break;

        default:

            r = KErrNotSupported;

		    break;

            }

        }

    //

    return r;

	}

TBool DMemSpyDriverLogChanHeapDataUser::IsHandler( TInt aFunction ) const

    {

    return ( aFunction > EMemSpyDriverOpCodeHeapUserDataBase && aFunction < EMemSpyDriverOpCodeHeapUserDataEnd );

    }

TInt DMemSpyDriverLogChanHeapDataUser::GetInfoData( TMemSpyDriverInternalHeapRequestParameters* aParams )

    {

    TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData() - START" ) );

    TInt r = Kern::ThreadRawRead( &ClientThread(), aParams, &iHeapInfoParams, sizeof(TMemSpyDriverInternalHeapRequestParameters) );

    if  ( r != KErrNone )

        {

    	TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - params read error: %d", r));

        }

    else

        {

        TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - thread id: %d, vtable: 0x%08x, debugAllocator: %d", iHeapInfoParams.iTid, iHeapInfoParams.iRHeapVTable, iHeapInfoParams.iDebugAllocator) );

	    r = OpenTempObject( iHeapInfoParams.iTid, EThread );

	    if  ( r != KErrNone )

		    {

    	    TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - thread not found") );

            }

        else

            {

            // Check that the process' thread's are suspended

            DThread* thread = (DThread*) TempObject();

            if  ( SuspensionManager().IsSuspended( *thread ) )

                {

                // Open client's heap

                RMemSpyDriverRHeapUser rHeap( OSAdaption() );

				r = rHeap.OpenUserHeap(*thread, iHeapInfoParams.iDebugAllocator);

                TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - opening client heap returned: %d", r) );

                if  ( r == KErrNone )

    {

                    // This object holds all of the info we will accumulate for the client.

                    TMemSpyHeapInfo masterHeapInfo;

                    masterHeapInfo.SetType(rHeap.GetTypeFromHelper());

                    masterHeapInfo.SetTid( iHeapInfoParams.iTid );

                    masterHeapInfo.SetPid( OSAdaption().DThread().GetOwningProcessId( *thread ) );

                    // This is the RHeap-specific object that contains all RHeap info

                    TMemSpyHeapInfoRHeap& rHeapInfo = masterHeapInfo.AsRHeap();

                    // We must walk the client's heap in order to build statistics

                    TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - calling heap walker constructor..."));

					RMemSpyDriverHeapWalker heapWalker(rHeap);

                    if  (iHeapInfoParams.iBuildFreeCellList || iHeapInfoParams.iBuildAllocCellList)

                        {

                        heapWalker.SetObserver( this );

                        TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - collecting cells"));

                        }

                    else

                        {

                        TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - not collecting cells"));

                        }

                    TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - starting traversal ..." ));

#if ( defined( TRACE_TYPE_USERHEAP ) && defined( TRACE_TYPE_HEAPWALK ) )

                    heapWalker.SetPrintDebug();

#endif

                    if (r == KErrNone) r = heapWalker.Traverse();

                    TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - finished traversal - err: %d", r ));

                    TMemSpyHeapStatisticsRHeap& rHeapStats = rHeapInfo.Statistics();

                    heapWalker.CopyStatsTo( rHeapStats );

                    // Get remaining meta data that isn't stored elsewhere

                    TMemSpyHeapMetaDataRHeap& rHeapMetaData = rHeapInfo.MetaData();

					DChunk& userHeapChunk = rHeap.Chunk();

					TFullName chunkName;

					userHeapChunk.FullName(chunkName);

					rHeapMetaData.SetChunkName( chunkName );

		            rHeapMetaData.SetChunkSize( (TUint) OSAdaption().DChunk().GetSize( userHeapChunk ) );

					rHeapMetaData.SetChunkHandle( &userHeapChunk );

					rHeapMetaData.SetChunkBaseAddress( OSAdaption().DChunk().GetBase( userHeapChunk ) );

                    rHeapMetaData.SetDebugAllocator(rHeap.Helper()->AllocatorIsUdeb());

                    rHeapMetaData.SetUserThread( ETrue );

					rHeapMetaData.iHeapSize = rHeap.Helper()->CommittedSize();

					rHeapMetaData.iAllocatorAddress = (TAny*)rHeap.Helper()->AllocatorAddress();

					rHeapMetaData.iMinHeapSize = rHeap.Helper()->MinCommittedSize();

					rHeapMetaData.iMaxHeapSize = rHeap.Helper()->MaxCommittedSize();

                    PrintHeapInfo( masterHeapInfo );

                    // Write free cells if requested

                    if  ( r == KErrNone && (iHeapInfoParams.iBuildFreeCellList || iHeapInfoParams.iBuildAllocCellList))

                        {

                        r = PrepareCellListTransferBuffer();

                        }

                    // Update info ready for writing back to the user-side

                    if  ( r >= KErrNone )

                        {

                        // Write results back to user-side

                        TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - writing to user-side..."));

                        TMemSpyHeapInfo* userMasterInfo = iHeapInfoParams.iMasterInfo;

                        const TInt error = Kern::ThreadRawWrite( &ClientThread(), userMasterInfo, &masterHeapInfo, sizeof(TMemSpyHeapInfo) );

                        if  ( error < 0 )

                            {

                            r = error;

                            }

                        }

                    // Release resources

					rHeap.Close();

                    }

                }

            else

                {

                r = KErrAccessDenied;

                TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData - parent process not suspended => KErrAccessDenied"));

                }

	        CloseTempObject();

            }

        }

	TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetInfoData() - END - ret: %d", r));

    return r;

    }

TInt DMemSpyDriverLogChanHeapDataUser::GetFullData( TMemSpyDriverInternalHeapDataParams& aParams )

    {

    TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetFullData() - START") );

	TInt r = OpenTempObject( aParams.iTid, EThread );

	if  ( r != KErrNone )

		{

    	Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetFullData() - END - thread not found");

		return r;

		}

    else 

        {

        const DMemSpyDriverLogChanHeapBase::TDrmMatchType drmMatchType = IsDrmThread( TempObjectAsThread() );

        if  ( drmMatchType != DMemSpyDriverLogChanHeapBase::EMatchTypeNone )

            {

            // Check whether it's a DRM thread...

            DThread* thread = (DThread*) TempObject();

    	    Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetFullData() - END - Not allowing dump of DRM heap - matchType: %d, thread: %O", drmMatchType, thread );

            CloseTempObject();

		    return KErrAccessDenied;

            }

        }

    // Check that the process' thread's are suspended

    DThread* thread = (DThread*) TempObject();

    if  ( SuspensionManager().IsSuspended( *thread ) )

        {

        // Open the heap

	    TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetFullData - thread: %O", thread) );

        RMemSpyDriverRHeapUser heap( OSAdaption() );

		r = heap.OpenUserHeap(*thread, aParams.iDebugAllocator);

		TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetFullData - opening heap returned: %d", r) );

        if  (r == KErrNone)

            {

            r = DoGetFullData(aParams, thread, heap);

			}

        else

            {

    	    Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetFullData - couldnt open heap for thread %O, err=%d", thread, r);

            r = KErrNotSupported;

            }

		heap.Close();

        }

    else

        {

        Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetFullData - parent process not suspended => KErrAccessDenied - thread: %O", thread );

        r = KErrAccessDenied;

        }

	CloseTempObject();

	TRACE( Kern::Printf("DMemSpyDriverLogChanHeapDataUser::GetFullData() - END - ret: %d", r) );

    return r;

    }