sl@0: // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // e32\e32test\demandpaging\d_pagingexample_1_pre.cpp
sl@0: // Demand paging migration example device driver d_pagingexample_1_pre: a DLogicalChannel-dervied
sl@0: // driver, pre-migration
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "d_pagingexample.h"
sl@0: #include <kernel/kernel.h>
sl@0: #include <kernel/kern_priv.h>
sl@0: 
sl@0: const TInt KDfcQThreadPriority = 25;
sl@0: const TInt KBufferSize = KMaxTransferSize;
sl@0: 
sl@0: //
sl@0: // Logical channel
sl@0: //
sl@0: 
sl@0: class DExampleChannel : public DLogicalChannel
sl@0: 	{
sl@0: public:
sl@0: 	typedef RPagingExample::TConfigData TConfigData;
sl@0: 	typedef RPagingExample::TValueStruct TValueStruct;
sl@0: public:
sl@0: 	DExampleChannel();
sl@0: 	~DExampleChannel();
sl@0: 	virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
sl@0: 	virtual void HandleMsg(TMessageBase* aMsg);
sl@0: 	TInt DoControl(TInt aFunction, TAny* a1, TAny* a2);
sl@0: 	TInt DoRequest(TInt aFunction, TRequestStatus* aStatus, TAny* a1, TAny* a2);
sl@0: 	TInt DoCancel(TUint aMask);
sl@0: private:
sl@0: 	TDfcQue* DfcQ();
sl@0: 	void Shutdown();
sl@0: 	void SetConfig(const TConfigData&);
sl@0: 	TInt StartNotify(TRequestStatus* aStatus);
sl@0: 	TInt StartAsyncGetValue(TInt* aValue, TRequestStatus* aStatus);
sl@0: 	TInt StartAsyncGetValue2(TInt* aValue1, TInt* aValue2, TRequestStatus* aStatus);
sl@0: 	TInt StartRead(TAny* aBuffer, TInt aLength, TRequestStatus* aStatus);
sl@0: 	TInt StartReadDes(TDes8* aDesOut, TRequestStatus* aStatus);
sl@0: 	TInt StartWrite(TAny* aBuffer, TInt aLength, TRequestStatus* aStatus);
sl@0: 	TInt StartWriteDes(const TDesC8* aDesIn, TRequestStatus* aStatus);
sl@0: 	void ReceiveToReadBuffer();
sl@0: 	void SendFromWriteBuffer();
sl@0: 	static void AsyncGetValueCompleteDfcFunc(TAny* aPtr);
sl@0: 	static void AsyncGetValue2CompleteDfcFunc(TAny* aPtr);
sl@0: 	static void ReceiveCompleteDfcFunc(TAny* aPtr);
sl@0: 	static void SendCompleteDfcFunc(TAny* aPtr);
sl@0: 	void CompleteNotify();
sl@0: 	void CompleteAsyncGetValue();
sl@0: 	void CompleteAsyncGetValue2();
sl@0: 	void CompleteRead();
sl@0: 	void CompleteWrite();
sl@0: private:
sl@0: 	TDynamicDfcQue* iDynamicDfcQ;
sl@0: 	TConfigData iConfig;
sl@0: 	DThread* iClient;
sl@0: 	
sl@0: 	// Notify
sl@0: 	TRequestStatus* iNotifyStatus;
sl@0: 	
sl@0: 	// Async get value
sl@0: 	TRequestStatus* iAsyncGetValueStatus;
sl@0: 	TInt* iAsyncGetValueDest;
sl@0: 	NTimer iAsyncGetValueTimer;
sl@0: 	TDfc iAsyncGetValueDfc;
sl@0: 	
sl@0: 	// Async get value 2
sl@0: 	TRequestStatus* iAsyncGetValue2Status;
sl@0: 	TInt* iAsyncGetValue2Dest1;
sl@0: 	TInt* iAsyncGetValue2Dest2;
sl@0: 	NTimer iAsyncGetValue2Timer;
sl@0: 	TDfc iAsyncGetValue2Dfc;
sl@0: 	
sl@0: 	// Read
sl@0: 	TRequestStatus* iReadStatus;
sl@0: 	NTimer iReadTimer;
sl@0: 	TAny* iReadDest;
sl@0: 	TInt iReadLength;
sl@0: 	TDes8* iReadDes;
sl@0: 	TDfc iCompleteReadDfc;
sl@0: 	
sl@0: 	// Write
sl@0: 	TRequestStatus* iWriteStatus;
sl@0: 	NTimer iWriteTimer;
sl@0: 	TAny* iWriteSrc;
sl@0: 	TInt iWriteLength;
sl@0: 	const TDesC8* iWriteDes;
sl@0: 	TDfc iCompleteWriteDfc;
sl@0: 	TUint8 iBuffer[KBufferSize];
sl@0: 	};
sl@0: 
sl@0: DExampleChannel::DExampleChannel() :
sl@0: 	iAsyncGetValueTimer(NULL, this),
sl@0: 	iAsyncGetValueDfc(AsyncGetValueCompleteDfcFunc, this, 0),
sl@0: 	iAsyncGetValue2Timer(NULL, this),
sl@0: 	iAsyncGetValue2Dfc(AsyncGetValue2CompleteDfcFunc, this, 0),
sl@0: 	iReadTimer(NULL, this),
sl@0: 	iCompleteReadDfc(ReceiveCompleteDfcFunc, this, 0),
sl@0: 	iWriteTimer(NULL, this),
sl@0: 	iCompleteWriteDfc(SendCompleteDfcFunc, this, 0)
sl@0: 	{
sl@0: 	iClient = &Kern::CurrentThread();
sl@0: 	iClient->Open();
sl@0: 	}
sl@0: 
sl@0: DExampleChannel::~DExampleChannel()
sl@0: 	{
sl@0: 	Kern::SafeClose((DObject*&)iClient, NULL);
sl@0: 	if (iDynamicDfcQ)
sl@0: 		iDynamicDfcQ->Destroy();
sl@0: 	}
sl@0: 
sl@0: TDfcQue* DExampleChannel::DfcQ()
sl@0: 	{
sl@0: 	return iDynamicDfcQ;
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
sl@0: 	{
sl@0: 	// Existing drivers may use the kernel global DFC queue, but for testing purposes we actually
sl@0: 	// allocate our own so we can control its realtime state.
sl@0: 	TInt r = Kern::DynamicDfcQCreate(iDynamicDfcQ, KDfcQThreadPriority, KPagingExample1PreLdd);
sl@0: 	if (r != KErrNone)
sl@0: 		return r;
sl@0: 	iDynamicDfcQ->SetRealtimeState(ERealtimeStateWarn);
sl@0: 	
sl@0: 	SetDfcQ(DfcQ());
sl@0: 	iAsyncGetValueDfc.SetDfcQ(DfcQ());
sl@0: 	iAsyncGetValue2Dfc.SetDfcQ(DfcQ());
sl@0: 	iCompleteReadDfc.SetDfcQ(DfcQ());
sl@0: 	iCompleteWriteDfc.SetDfcQ(DfcQ());
sl@0: 	iMsgQ.Receive();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::HandleMsg(TMessageBase* aMsg)
sl@0: 	{
sl@0: 	TThreadMessage& m=*(TThreadMessage*)aMsg;
sl@0:     TInt id=m.iValue;
sl@0: 	
sl@0: 	if (id==(TInt)ECloseMsg)
sl@0: 		{
sl@0: 		Shutdown();
sl@0: 		m.Complete(KErrNone,EFalse);
sl@0: 		return;
sl@0: 		}
sl@0: 
sl@0: 	// we only support one client
sl@0: 	if (m.Client() != iClient)
sl@0: 		{
sl@0: 		m.Complete(KErrAccessDenied,ETrue);
sl@0: 		return;
sl@0: 		}
sl@0: 	
sl@0:     if (id==KMaxTInt)
sl@0: 		{
sl@0: 		// DoCancel
sl@0: 		DoCancel(m.Int0());
sl@0: 		m.Complete(KErrNone,ETrue);
sl@0: 		return;
sl@0: 		}
sl@0:     else if (id<0)
sl@0: 		{
sl@0: 		// DoRequest
sl@0: 		TRequestStatus* pS=(TRequestStatus*)m.Ptr0();
sl@0: 		TInt r=DoRequest(~id,pS,m.Ptr1(),m.Ptr2());
sl@0: 		if (r!=KErrNone)
sl@0: 			Kern::RequestComplete(m.Client(),pS,r);
sl@0: 		m.Complete(KErrNone,ETrue);
sl@0: 		}
sl@0:     else
sl@0: 		{
sl@0: 		// DoControl
sl@0: 		TInt r=DoControl(id,m.Ptr0(),m.Ptr1());
sl@0: 		m.Complete(r,ETrue);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::DoControl(TInt aFunction,TAny* a1,TAny* /*a2*/)
sl@0: 	{
sl@0: 	TInt r = KErrNone;
sl@0: 	switch (aFunction)
sl@0: 		{
sl@0: 		case RPagingExample::ESetRealtimeState:
sl@0: 			iDynamicDfcQ->SetRealtimeState(a1 ? ERealtimeStateOn : ERealtimeStateWarn);
sl@0: 			break;
sl@0: 			
sl@0: 		case RPagingExample::EGetConfig:
sl@0: 			r = Kern::ThreadRawWrite(iClient, a1, (TAny*)&iConfig, sizeof(TConfigData), iClient);
sl@0: 			break;
sl@0: 
sl@0: 		case RPagingExample::ESetConfig:
sl@0: 			{
sl@0: 			TConfigData newConfig;
sl@0: 			r = Kern::ThreadRawRead(iClient, a1, &newConfig, sizeof(TConfigData));
sl@0: 			if (r == KErrNone)
sl@0: 				SetConfig(newConfig);
sl@0: 			}
sl@0: 			break;
sl@0: 
sl@0: 		default:
sl@0: 			r = KErrNotSupported;
sl@0: 		}
sl@0: 	return r;
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::DoRequest(TInt aFunction, TRequestStatus* aStatus, TAny* a1, TAny* a2)
sl@0: 	{
sl@0: 	TInt r = KErrNotSupported;
sl@0: 	switch (aFunction)
sl@0: 		{
sl@0: 		case RPagingExample::ERequestNotify:
sl@0: 			r = StartNotify(aStatus);
sl@0: 			break;
sl@0: 			
sl@0: 		case RPagingExample::ERequestAsyncGetValue:
sl@0: 			r = StartAsyncGetValue((TInt*)a1, aStatus);
sl@0: 			break;
sl@0: 			
sl@0: 		case RPagingExample::ERequestAsyncGetValue2:
sl@0: 			r = StartAsyncGetValue2((TInt*)a1, (TInt*)a2, aStatus);
sl@0: 			break;
sl@0: 			
sl@0: 		case RPagingExample::ERequestRead:
sl@0: 			r = StartRead(a1, (TInt)a2, aStatus);
sl@0: 			break;
sl@0: 			
sl@0: 		case RPagingExample::ERequestReadDes:
sl@0: 			r = StartReadDes((TDes8*)a1, aStatus);
sl@0: 			break;
sl@0: 
sl@0: 		case RPagingExample::ERequestWrite:
sl@0: 			r = StartWrite(a1, (TInt)a2, aStatus);
sl@0: 			break;
sl@0: 			
sl@0: 		case RPagingExample::ERequestWriteDes:
sl@0: 			r = StartWriteDes((TDes8*)a1, aStatus);
sl@0: 			break;
sl@0: 		}
sl@0: 	return r;
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::DoCancel(TUint /*aMask*/)
sl@0: 	{
sl@0: 	if (iAsyncGetValueStatus)
sl@0: 		{
sl@0: 		iAsyncGetValueTimer.Cancel();
sl@0: 		iAsyncGetValueDfc.Cancel();
sl@0: 		Kern::RequestComplete(iClient, iAsyncGetValueStatus, KErrCancel);
sl@0: 		}
sl@0: 
sl@0: 	if (iAsyncGetValue2Status)
sl@0: 		{
sl@0: 		iAsyncGetValue2Timer.Cancel();
sl@0: 		iAsyncGetValue2Dfc.Cancel();
sl@0: 		Kern::RequestComplete(iClient, iAsyncGetValue2Status, KErrCancel);
sl@0: 		}
sl@0: 
sl@0: 	if (iReadStatus)
sl@0: 		{
sl@0: 		iReadTimer.Cancel();
sl@0: 		iCompleteReadDfc.Cancel();
sl@0: 		Kern::RequestComplete(iClient, iReadStatus, KErrCancel);
sl@0: 		}
sl@0: 
sl@0: 	if (iWriteStatus)
sl@0: 		{
sl@0: 		iWriteTimer.Cancel();
sl@0: 		iCompleteWriteDfc.Cancel();
sl@0: 		Kern::RequestComplete(iClient, iWriteStatus, KErrCancel);
sl@0: 		}
sl@0: 	
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::Shutdown()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::SetConfig(const TConfigData& aNewConfig)
sl@0: 	{
sl@0: 	iConfig = aNewConfig;
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::StartNotify(TRequestStatus* aStatus)
sl@0: 	{
sl@0: 	iNotifyStatus = aStatus;	
sl@0: 	CompleteNotify(); // example implementation completes the request immediately
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::CompleteNotify()
sl@0: 	{
sl@0: 	Kern::RequestComplete(iClient, iNotifyStatus, KErrNone);
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::StartAsyncGetValue(TInt* aValue, TRequestStatus* aStatus)
sl@0: 	{
sl@0: 	iAsyncGetValueDest = aValue;
sl@0: 	iAsyncGetValueStatus = aStatus;
sl@0: 
sl@0: 	// queue a timer to simulate an asynchronous operation
sl@0: 	iAsyncGetValueTimer.OneShot(KAsyncDelay, iAsyncGetValueDfc);
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::AsyncGetValueCompleteDfcFunc(TAny* aPtr)
sl@0: 	{
sl@0: 	DExampleChannel* self = (DExampleChannel*)aPtr;
sl@0: 	self->CompleteAsyncGetValue();
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::CompleteAsyncGetValue()
sl@0: 	{
sl@0: 	TValueStruct value;
sl@0: 	value.iValue1 = 1;
sl@0: 	value.iValue2 = _L8("shrt");
sl@0: 	TInt r = Kern::ThreadRawWrite(iClient, iAsyncGetValueDest, (TAny*)&value, sizeof(TValueStruct), iClient);
sl@0: 	Kern::RequestComplete(iClient, iAsyncGetValueStatus, r);
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::StartAsyncGetValue2(TInt* aValue1, TInt* aValue2, TRequestStatus* aStatus)
sl@0: 	{
sl@0: 	iAsyncGetValue2Dest1 = aValue1;
sl@0: 	iAsyncGetValue2Dest2 = aValue2;
sl@0: 	iAsyncGetValue2Status = aStatus;
sl@0: 
sl@0: 	// queue a timer to simulate an asynchronous operation
sl@0: 	iAsyncGetValue2Timer.OneShot(KAsyncDelay, iAsyncGetValue2Dfc);
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::AsyncGetValue2CompleteDfcFunc(TAny* aPtr)
sl@0: 	{
sl@0: 	DExampleChannel* self = (DExampleChannel*)aPtr;
sl@0: 	self->CompleteAsyncGetValue2();
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::CompleteAsyncGetValue2()
sl@0: 	{
sl@0: 	TInt value1 = 1;
sl@0: 	TInt value2 = 2;
sl@0: 	TInt r = Kern::ThreadRawWrite(iClient, iAsyncGetValue2Dest1, (TAny*)&value1, sizeof(TInt), iClient);
sl@0: 	if (r == KErrNone)
sl@0: 		r = Kern::ThreadRawWrite(iClient, iAsyncGetValue2Dest2, (TAny*)&value2, sizeof(TInt), iClient);
sl@0: 	Kern::RequestComplete(iClient, iAsyncGetValue2Status, r);
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::StartRead(TAny* aBuffer, TInt aLength, TRequestStatus* aStatus)
sl@0: 	{
sl@0: 	if (iReadStatus)
sl@0: 		return KErrInUse;
sl@0: 	if (aLength < 1 || aLength > KBufferSize)
sl@0: 		return KErrArgument;
sl@0: 	iReadStatus = aStatus;
sl@0: 	iReadDest = aBuffer;
sl@0: 	iReadLength = aLength;
sl@0: 	ReceiveToReadBuffer();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::StartReadDes(TDes8* aDesOut, TRequestStatus* aStatus)
sl@0: 	{
sl@0: 	if (iReadStatus)
sl@0: 		return KErrInUse;
sl@0: 	TInt r = Kern::ThreadGetDesMaxLength(iClient, aDesOut);
sl@0: 	if (r < 0)
sl@0: 		return r;
sl@0: 	TInt length = r;
sl@0: 	if (length < 1 || length > KBufferSize)
sl@0: 		return KErrArgument;
sl@0: 	iReadStatus = aStatus;
sl@0: 	iReadDes = aDesOut;
sl@0: 	iReadLength = length;
sl@0: 	ReceiveToReadBuffer();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::StartWrite(TAny* aBuffer, TInt aLength, TRequestStatus* aStatus)
sl@0: 	{
sl@0: 	if (iWriteStatus)
sl@0: 		return KErrInUse;
sl@0: 	if (aLength < 1 || aLength > KBufferSize)
sl@0: 		return KErrArgument;
sl@0: 	iWriteStatus = aStatus;
sl@0: 	iWriteSrc = aBuffer;
sl@0: 	iWriteLength = aLength;
sl@0: 	SendFromWriteBuffer();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: TInt DExampleChannel::StartWriteDes(const TDesC8* aDesIn, TRequestStatus* aStatus)
sl@0: 	{
sl@0: 	if (iWriteStatus)
sl@0: 		return KErrInUse;
sl@0: 	TInt r = Kern::ThreadGetDesLength(iClient, aDesIn);
sl@0: 	if (r < 0)
sl@0: 		return r;
sl@0: 	TInt length = r;
sl@0: 	if (length < 1 || length > KBufferSize)
sl@0: 		return KErrArgument;
sl@0: 	iWriteStatus = aStatus;
sl@0: 	iWriteLength = length;
sl@0: 	iWriteDes = aDesIn;
sl@0: 	SendFromWriteBuffer();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::ReceiveToReadBuffer()
sl@0: 	{
sl@0: 	// just queue a timer to simulate an asynchronous receive operation
sl@0: 	// actually will return the previous contents of the buffer
sl@0: 	iReadTimer.OneShot(KAsyncDelay, iCompleteReadDfc);
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::SendFromWriteBuffer()
sl@0: 	{
sl@0: 	// just queue a timer to simulate an asynchronous send operation
sl@0: 	iWriteTimer.OneShot(KAsyncDelay, iCompleteWriteDfc);
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::ReceiveCompleteDfcFunc(TAny* aPtr)
sl@0: 	{
sl@0: 	DExampleChannel* self = (DExampleChannel*)aPtr;
sl@0: 	self->CompleteRead();
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::SendCompleteDfcFunc(TAny* aPtr)
sl@0: 	{
sl@0: 	DExampleChannel* self = (DExampleChannel*)aPtr;
sl@0: 	self->CompleteWrite();
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::CompleteRead()
sl@0: 	{
sl@0: 	TInt r;
sl@0: 	if (iReadDest)
sl@0: 		{
sl@0: 		r = Kern::ThreadRawWrite(iClient, iReadDest, iBuffer, iReadLength, iClient);
sl@0: 		iReadDest = NULL;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TPtrC8 des(iBuffer, iReadLength);
sl@0: 		r = Kern::ThreadDesWrite(iClient, iReadDes, des, 0, KChunkShiftBy0, iClient);
sl@0: 		iReadDes = NULL;
sl@0: 		}
sl@0: 	
sl@0: 	iReadLength = 0;
sl@0: 	Kern::RequestComplete(iClient, iReadStatus, r);
sl@0: 	}
sl@0: 
sl@0: void DExampleChannel::CompleteWrite()
sl@0: 	{
sl@0: 	TInt r;
sl@0: 	if (iWriteSrc)
sl@0: 		{
sl@0: 		r = Kern::ThreadRawRead(iClient, iWriteSrc, iBuffer, iWriteLength);
sl@0: 		iWriteSrc = NULL;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TPtr8 des(iBuffer, iWriteLength);
sl@0: 		r = Kern::ThreadDesRead(iClient, iWriteDes, des, 0);
sl@0: 		iWriteDes = NULL;
sl@0: 		}
sl@0: 	
sl@0: 	iWriteLength = 0;
sl@0: 	Kern::RequestComplete(iClient, iWriteStatus, r);
sl@0: 	}
sl@0: 
sl@0: //
sl@0: // Logical device
sl@0: //
sl@0: 
sl@0: class DExampleFactory : public DLogicalDevice
sl@0: 	{
sl@0: public:
sl@0: 	DExampleFactory();
sl@0: 	virtual TInt Install();
sl@0: 	virtual void GetCaps(TDes8& aDes) const;
sl@0: 	virtual TInt Create(DLogicalChannelBase*& aChannel);
sl@0: 	};
sl@0: 
sl@0: DExampleFactory::DExampleFactory()
sl@0: 	{
sl@0: 	iParseMask = 0;
sl@0: 	iVersion = TVersion(1, 0, 0);
sl@0: 	}
sl@0: 
sl@0: TInt DExampleFactory::Install()
sl@0: 	{
sl@0: 	return SetName(&KPagingExample1PreLdd);
sl@0: 	}
sl@0: 
sl@0: void DExampleFactory::GetCaps(TDes8& /*aDes*/) const
sl@0: 	{
sl@0: 	// not used but required as DLogicalDevice::GetCaps is pure virtual
sl@0: 	}
sl@0: 
sl@0: TInt DExampleFactory::Create(DLogicalChannelBase*& aChannel)
sl@0: 	{
sl@0: 	aChannel = new DExampleChannel;
sl@0: 	return aChannel ? KErrNone : KErrNoMemory;
sl@0: 	}
sl@0: 
sl@0: DECLARE_STANDARD_LDD()
sl@0: 	{
sl@0: 	return new DExampleFactory;
sl@0: 	}