/*

* 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 "MemSpyDriverLogicalChannel.h"

// System includes

#include <u32hal.h>

#include <e32rom.h>

// User includes

#include "MemSpyDriverUtils.h"

#include "MemSpyDriverDevice.h"

#include <memspy/driver/memspydriverconstants.h>

#include "MemSpyDriverLogChanChunks.h"

#include "MemSpyDriverLogChanClientServer.h"

#include "MemSpyDriverLogChanCodeSegs.h"

#include "MemSpyDriverLogChanContainers.h"

#include "MemSpyDriverLogChanMisc.h"

#include "MemSpyDriverLogChanProcessInspection.h"

#include "MemSpyDriverLogChanStack.h"

#include "MemSpyDriverLogChanRawMemory.h"

#include "MemSpyDriverLogChanUserEventMonitor.h"

#include "MemSpyDriverLogChanThreadAndProcess.h"

DMemSpyDriverLogicalChannel::DMemSpyDriverLogicalChannel()

    {

    }

DMemSpyDriverLogicalChannel::~DMemSpyDriverLogicalChannel()

	{

	TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::~DMemSpyDriverLogicalChannel() - START"));

    NKern::ThreadEnterCS();

    SubChannelsDestroy();

    TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::~DMemSpyDriverLogicalChannel() - closing client thread..."));

    Kern::SafeClose( (DObject*&) iClientThread, NULL );

    NKern::ThreadLeaveCS();

    TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::~DMemSpyDriverLogicalChannel() - calling device to cleanup..."));

    MemSpyDevice().Cleanup();

    TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::~DMemSpyDriverLogicalChannel() - END"));

	}

TInt DMemSpyDriverLogicalChannel::DoCreate( TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& aVer )

	{

	TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::DoCreate() - START - heldFM: %d, device: 0x%08x", Kern::CurrentThread().iNThread.iHeldFastMutex != NULL, &MemSpyDevice() ) );

    TInt error = KErrNone;

    //

    if  ( !Kern::QueryVersionSupported( KMemSpyDriverVersion(), aVer ) )

        {

        error = KErrNotSupported;

        }

    else

        {

        // Try to get the memory model type

    	TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::DoCreate - opening client thread..."));

        iClientThread = &Kern::CurrentThread();

	    error = iClientThread->Open();

        TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::DoCreate - client thread open error: %d", error ));

        if  ( error == KErrNone )

            {

            TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::DoCreate - creating sub channels error: %d", error ));

            error = SubChannelsRegister();

            }

        }

    //

	TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::DoCreate() - END - heldFM: %d", Kern::CurrentThread().iNThread.iHeldFastMutex != NULL ) );

    return error;

	}

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

	{

	TRACE( Kern::Printf(" " ) );

	TRACE( Kern::Printf(" " ) );

	TRACE( Kern::Printf("--------------------------------------------------------------------------------------------------------------------- " ) );

	TRACE_OP( Kern::Printf("DMemSpyDriverLogicalChannel::Request() - START - fn: %3d, a1: 0x%08x, a2: 0x%08x, heldFM: %d", aFunction, a1, a2, iClientThread->iNThread.iHeldFastMutex != NULL ) );

	TRACE( Kern::Printf("--------------------------------------------------------------------------------------------------------------------- " ) );

	//

    TInt r = KErrNotSupported;

    //

    DMemSpyDriverLogChanBase* handler = SubChannelForFunction( aFunction );

    if  ( handler )

        {

        r = handler->Request( aFunction, a1, a2 );

        }

    //

#ifdef _DEBUG

    if  ( r < 0 && r != KErrEof )

        {

	    Kern::Printf( "DMemSpyDriverLogicalChannel::Request() - END - fn: %3d, a1: 0x%08x, a2: 0x%08x, heldFM: %d, r: %d", aFunction, a1, a2, iClientThread->iNThread.iHeldFastMutex != NULL, r );

        }

#endif

	TRACE( Kern::Printf(" " ) );

	TRACE( Kern::Printf(" " ) );

    //

    return r;

	}

TInt DMemSpyDriverLogicalChannel::SubChannelsRegister()

    {

    TInt r = KErrNone;

    DMemSpyDriverDevice& device = MemSpyDevice();

    DMemSpyDriverLogChanBase* subChan = NULL;

    //

    subChan = new DMemSpyDriverLogChanChunks( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanClientServer( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanCodeSegs( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanContainers( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanMisc( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanProcessInspection( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanRawMemory( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanStack( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanThreadAndProcess( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    subChan = new DMemSpyDriverLogChanUserEventMonitor( device, *iClientThread );

    r = SubChannelConstructAndSave( subChan );

    if ( r != KErrNone )

        {

        return r;

        }

    //

    return r;

    }

TInt DMemSpyDriverLogicalChannel::SubChannelConstructAndSave( DMemSpyDriverLogChanBase*& aSubChannel )

    {

    TInt r = KErrNoMemory;

    //

    if ( aSubChannel )

        {

        NKern::ThreadEnterCS();

        r = aSubChannel->Construct();

        //

        if  ( r == KErrNone )

            {

            r = iSubChannels.Append( aSubChannel );

            if  ( r != KErrNone )

                {

                delete aSubChannel;

                }

            }

        else

            {

            delete aSubChannel;

            }

        //

        NKern::ThreadLeaveCS();

        }

    //

    aSubChannel = NULL;

    return r;

    }

void DMemSpyDriverLogicalChannel::SubChannelsDestroy()

    {

    const TInt count = iSubChannels.Count();

	TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::SubChannelsDestroy() - START - count: %d", count ) );

    //

    NKern::ThreadEnterCS();

    for( TInt i=0; i<count; i++ )

        {

        DMemSpyDriverLogChanBase* subChan = iSubChannels[ i ];

	    TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::SubChannelsDestroy() - deleting subChannel: 0x%08x", subChan ) );

        delete subChan;

        }

    //

    iSubChannels.Reset();

    NKern::ThreadLeaveCS();

    //

	TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::SubChannelsDestroy() - END" ) );

    }

DMemSpyDriverLogChanBase* DMemSpyDriverLogicalChannel::SubChannelForFunction( TInt aFunction )

    {

	TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::SubChannelForFunction() - START - aFunction: %d", aFunction ) );

    //

    DMemSpyDriverLogChanBase* ret = NULL;

    const TInt count = iSubChannels.Count();

    for( TInt i=0; i<count; i++ )

        {

        DMemSpyDriverLogChanBase* subChan = iSubChannels[ i ];

        if  ( subChan->IsHandler( aFunction ) )

            {

            ret = subChan;

            break;

            }

        }

    //

	TRACE( Kern::Printf("DMemSpyDriverLogicalChannel::SubChannelForFunction() - END - aFunction: %d, subChannel: 0x%08x", aFunction, ret ) );

    return ret;

    }

DMemSpyDriverDevice& DMemSpyDriverLogicalChannel::MemSpyDevice()

    {

    DMemSpyDriverDevice& device = *((DMemSpyDriverDevice*) iDevice);

    return device;

    }