perfsrv/memspy/Driver/Kernel/Source/SubChannels/MemSpyDriverLogChanBase.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 04 Oct 2010 02:45:59 +0300
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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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#include "MemSpyDriverLogChanBase.h"
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// System includes
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#include <u32hal.h>
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#include <kernel.h>
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#include <memspy/driver/memspydriverobjectsshared.h>
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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 "MemSpyDriverUtils.h"
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#include "MemSpyDriverDevice.h"
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#include "MemSpyDriverOSAdaption.h"
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#include "MemSpyDriverXferBuffer.h"
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DMemSpyDriverLogChanBase::DMemSpyDriverLogChanBase( DMemSpyDriverDevice& aDevice, DThread& aThread )
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:   iDevice( aDevice ), iClientThread( aThread )
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    {
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	TRACE( Kern::Printf("DMemSpyDriverLogChanBase::DMemSpyDriverLogChanBase() - this: 0x%08x", this ));
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    }
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DMemSpyDriverLogChanBase::~DMemSpyDriverLogChanBase()
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	{
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	TRACE( Kern::Printf("DMemSpyDriverLogChanBase::~DMemSpyDriverLogChanBase() - START - this: 0x%08x", this ));
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    NKern::ThreadEnterCS();
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    if  ( iTempObj != NULL )
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        {
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    	Kern::SafeClose( iTempObj, NULL );
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        }
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    delete iXferBuffer;
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    NKern::ThreadLeaveCS();
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    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::~DMemSpyDriverLogChanBase() - END - this: 0x%08x", this ));
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	}
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TInt DMemSpyDriverLogChanBase::BaseConstruct( TInt aTransferBufferSize )
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    {
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    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::BaseConstruct() - START - this: 0x%08x, aTransferBufferSize: %d", this, aTransferBufferSize ));
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    TInt ret = KErrNone;
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    //
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    if  ( aTransferBufferSize != 0 )
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        {
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        iXferBuffer = new DMemSpyDriverXferBuffer( iDevice, iClientThread );
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        if  ( !iXferBuffer )
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            {
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            ret = KErrNoMemory;
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            }
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        else
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            {
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            ret = iXferBuffer->Construct( aTransferBufferSize );
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            if  ( ret != KErrNone )
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                {
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                delete iXferBuffer;
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                iXferBuffer = NULL;
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                }
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            }
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        }
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    //
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    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::BaseConstruct() - END - this: 0x%08x, aTransferBufferSize: %d, size: %d", this, aTransferBufferSize, iXferBuffer ? iXferBuffer->Size() : 0 ));
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    return ret;
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    }
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TInt DMemSpyDriverLogChanBase::Construct()
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    {
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    const TInt baseErr = BaseConstruct();
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    return baseErr;
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    }
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TInt DMemSpyDriverLogChanBase::Request( TInt /*aFunction*/, TAny* /*a1*/, TAny* /*a2*/ )
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    {
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    return KErrNone;
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    }
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DMemSpyDriverDevice& DMemSpyDriverLogChanBase::MemSpyDevice()
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    {
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    return iDevice;
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    }
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DMemSpySuspensionManager& DMemSpyDriverLogChanBase::SuspensionManager()
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    {
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    return MemSpyDevice().SuspensionManager();
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    }
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parents:
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   119
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   120
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parents:
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   121
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parents:
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   122
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parents:
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   123
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parents:
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   124
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   125
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parents:
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   126
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   127
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parents:
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   128
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TInt DMemSpyDriverLogChanBase::OpenTempObject( TUint aId, TObjectType aType, TBool aAllowDeadObjects )
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	{
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   131
	__ASSERT_DEBUG( aType == EProcess || aType == EThread, MemSpyDriverUtils::Fault( __LINE__ ) );
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	__ASSERT_DEBUG( !iTempObj, MemSpyDriverUtils::Fault( __LINE__ ) );
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	TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - START - aId: %d, aType: %d, aAllowDeadObjects: %d", aId, aType, aAllowDeadObjects ));
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   135
	DObjectCon* pC = Kern::Containers()[ aType ];
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	NKern::ThreadEnterCS();
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	pC->Wait();
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   138
	iTempObj = (aType == EProcess) ? (DObject*) Kern::ProcessFromId( aId ) : (DObject*) Kern::ThreadFromId( aId );
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parents:
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   139
	TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - kernel obj from id returned: 0x%08x %O", iTempObj, iTempObj ));
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   140
    //
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   141
    TBool openedOkay = EFalse;
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    TInt r = KErrNone;
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   143
    //
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   144
	if ( iTempObj )
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   145
        {
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		r = iTempObj->Open();
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	    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - open returned: %d", r ));
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		//
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   149
        if  ( r == KErrNone )
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   150
            {
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            openedOkay = ETrue;
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            if  ( aType == EProcess )
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                {
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                // Check the process is still alive
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                DProcess* process = (DProcess*) iTempObj;
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parents:
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                const TExitType exitType = OSAdaption().DProcess().GetExitType( *process );
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parents:
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   157
                TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - process exitType: %d", exitType ));
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parents:
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   158
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   159
                if  ( !aAllowDeadObjects && exitType != EExitPending )
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parents:
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   160
					{
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   161
                    r = KErrDied;
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   162
                    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - PROCESS IS DEAD!" ));
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parents:
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   163
					}
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parents:
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   164
                }
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parents:
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   165
            else if ( aType == EThread )
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parents:
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   166
                {
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                // Check the thread is still alive
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parents:
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   168
                DThread* thread = (DThread*) iTempObj;
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                const TExitType exitType = OSAdaption().DThread().GetExitType( *thread );
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parents:
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   170
                TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - thread exitType: %d", exitType ));
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parents:
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   171
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                if  ( !aAllowDeadObjects && exitType != EExitPending )
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parents:
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   173
                    {
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   174
                    r = KErrDied;
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   175
                    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - THREAD IS DEAD!" ));
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   176
                    }
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   177
                }
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   178
            }
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parents:
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   179
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   180
        }
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   181
    else if ( !iTempObj )
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parents:
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        {
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   183
        r = KErrNotFound;
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   184
	    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - ENTITY NOT FOUND!" ));
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parents:
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   185
        }
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parents:
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   186
    //
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   187
	pC->Signal();
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parents:
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   188
	TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - signalled container..." ));
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   189
	NKern::ThreadLeaveCS();
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parents:
diff changeset
   190
	TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - left CS..." ));
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parents:
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   191
    //
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   192
    if  ( r != KErrNone && iTempObj )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   193
        {
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parents:
diff changeset
   194
	    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - ERROR CASE - closing temp object (r: %d, openedOkay: %d)...", r, openedOkay ));
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parents:
diff changeset
   195
        //
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diff changeset
   196
        if ( openedOkay )
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parents:
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   197
            {
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parents:
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   198
            CloseTempObject();
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   199
            }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   200
        else
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parents:
diff changeset
   201
            {
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parents:
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   202
            NKern::SafeSwap( NULL, (TAny*&) iTempObj );
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parents:
diff changeset
   203
            }
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parents:
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   204
        //
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
	    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - ERROR CASE - closed temp object" ));
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parents:
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   206
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   207
    //
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
	TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenTempObject() - END - r: %d", r ));
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parents:
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   209
	return r;
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   210
	}
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parents:
diff changeset
   211
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parents:
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   212
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parents:
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   213
void DMemSpyDriverLogChanBase::CloseTempObject()
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parents:
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   214
	{
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   215
	TRACE( Kern::Printf("DMemSpyDriverLogChanBase::CloseTempObject() - START - iTempObj: 0x%08x %O", iTempObj, iTempObj ));
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parents:
diff changeset
   216
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   217
	__ASSERT_DEBUG( iTempObj, MemSpyDriverUtils::Fault( __LINE__ ) );
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parents:
diff changeset
   218
    if  ( iTempObj )
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parents:
diff changeset
   219
        {
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parents:
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   220
	    NKern::ThreadEnterCS();
516af714ebb4 Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
        TRACE( Kern::Printf("DMemSpyDriverLogChanBase::CloseTempObject() - in CS..." ));
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parents:
diff changeset
   222
        //
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223
	    Kern::SafeClose( iTempObj, NULL );
516af714ebb4 Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   224
        TRACE( Kern::Printf("DMemSpyDriverLogChanBase::CloseTempObject() - done safe close..." ));
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parents:
diff changeset
   225
        //
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   226
	    NKern::ThreadLeaveCS();
516af714ebb4 Revision: 201037
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   227
        TRACE( Kern::Printf("DMemSpyDriverLogChanBase::CloseTempObject() - left CS" ));
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parents:
diff changeset
   228
        }
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    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::CloseTempObject() - END" ));
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	}
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DThread& DMemSpyDriverLogChanBase::TempObjectAsThread()
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    {
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	__ASSERT_DEBUG( iTempObj, MemSpyDriverUtils::Fault( __LINE__ ) );
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    DThread* ret = (DThread*) iTempObj;
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    return *ret;
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    }
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DProcess& DMemSpyDriverLogChanBase::TempObjectAsProcess()
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    {
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	__ASSERT_DEBUG( iTempObj, MemSpyDriverUtils::Fault( __LINE__ ) );
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    DProcess* ret = (DProcess*) iTempObj;
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    return *ret;
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    }
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RMemSpyMemStreamWriter DMemSpyDriverLogChanBase::OpenXferStream()
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    {
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	__ASSERT_ALWAYS( iXferBuffer, MemSpyDriverUtils::Fault( __LINE__ ) );
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    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenXferStream() - this: 0x%08x, xferSize: %d", this, iXferBuffer->Size() ) );
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    RMemSpyMemStreamWriter ret( *iXferBuffer );
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    return ret;
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    }
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TInt DMemSpyDriverLogChanBase::OpenXferStream( RMemSpyMemStreamWriter& aWriter, TInt aRequiredSize )
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    {
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    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenXferStream() - START - this: 0x%08x, xferSize: %d, aRequiredSize: %d", this, iXferBuffer->Size(), aRequiredSize ) );
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    __ASSERT_ALWAYS( iXferBuffer, MemSpyDriverUtils::Fault( __LINE__ ) );
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    TInt err = KErrNone;
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    // Never make the buffer smaller - but we will make it bigger if needs be.
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    if  ( aRequiredSize > iXferBuffer->Size() )
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        {
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        TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenXferStream() - Need to grow Xfer buffer..." ));
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        err = iXferBuffer->EnsureCapacity( aRequiredSize );
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        TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenXferStream() - grow result: %d", err ));
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        }
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    //
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    if  ( err == KErrNone )
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        {
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        TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenXferStream() - creating writer... with xfer buffer size: %d", iXferBuffer->Size() ));
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        aWriter = RMemSpyMemStreamWriter( *iXferBuffer );
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        }
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    //
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    TRACE( Kern::Printf("DMemSpyDriverLogChanBase::OpenXferStream() - END - this: 0x%08x, xferSize: %d, aRequiredSize: %d", this, iXferBuffer->Size(), aRequiredSize ) );
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    return err;
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    }
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DMemSpyDriverOSAdaption& DMemSpyDriverLogChanBase::OSAdaption()
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    {
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    return iDevice.OSAdaption();
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    }
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parents:
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   306