// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// e32test\mmu\d_asid.cpp

// 

//

#include <kernel/kern_priv.h>

#include "d_asid.h"

//

// Class definitions

//

class DAsidFactory : public DLogicalDevice

	{

public:

	~DAsidFactory();

	virtual TInt Install();

	virtual void GetCaps(TDes8& aDes) const;

	virtual TInt Create(DLogicalChannelBase*& aChannel);

	};

class DAsidChannel : public DLogicalChannelBase

	{

public:

	DAsidChannel();

	~DAsidChannel();

	virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);

	virtual TInt Request(TInt aFunction, TAny* a1, TAny* a2);

public:

	DAsidFactory*	iFactory;

private:

	DThread* iThread;

	};

//

// DAsidFactory

//

TInt DAsidFactory::Install()

	{

	return SetName(&KMemoryTestLddName);

	}

DAsidFactory::~DAsidFactory()

	{

	}

void DAsidFactory::GetCaps(TDes8& /*aDes*/) const

	{

	// Not used but required as DLogicalDevice::GetCaps is pure virtual

	}

TInt DAsidFactory::Create(DLogicalChannelBase*& aChannel)

	{

	aChannel = NULL;

	DAsidChannel* channel=new DAsidChannel;

	if(!channel)

		return KErrNoMemory;

	channel->iFactory = this;

	aChannel = channel;

	return KErrNone;

	}

DECLARE_STANDARD_LDD()

	{

	return new DAsidFactory;

	}

//

// DAsidChannel

//

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

	{

	return KErrNone;

	}

DAsidChannel::DAsidChannel() : iThread(NULL)

	{

	}

DAsidChannel::~DAsidChannel()

	{

	if (iThread)

		iThread->Close(NULL);

	}

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

	{

	TInt r=KErrNotSupported;

	switch(aFunction)

		{

		case RAsidLdd::EGetCurrentThread:

			{

			DThread* thread = &Kern::CurrentThread();

			kumemput32(a1, (TAny*)&thread, sizeof(DThread*));

			r = KErrNone;

			}

			break;

		case RAsidLdd::EOpenThread:

			{

			if (iThread)

				{

				r = KErrInUse;

				break;

				}

			iThread = (DThread*) a1;

			iThread->Open();

			r = KErrNone;

			}

			break;

		case RAsidLdd::ECloseThread:

			{

			if (!iThread)

				{

				r = KErrNotFound;

				break;

				}

			NKern::ThreadEnterCS();

			iThread->Close(NULL);

			iThread = NULL;

			r = KErrNone;

			NKern::ThreadLeaveCS();

			}

			break;

		case RAsidLdd::EReadDesHeader:

			{

			SDesHeader hdr;

			TUint8* ptr;

			kumemget32((TAny*)&hdr, a2, sizeof(SDesHeader));

			r = Kern::ThreadGetDesInfo((DThread*)a1, hdr.iDes, hdr.iLength, hdr.iMaxLength, ptr, ETrue);

			if (r == KErrNone)

				{// copy the data back to user side struct.

				kumemput32(a2, &hdr, sizeof(SDesHeader));

				}

			}

			break;

		}

	return r;

	}