sl@0: // Copyright (c) 2007-2009 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: // e32test\earlyextension\d_testearlyextension.cpp
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <kernel/kernel.h>
sl@0: #include "d_wsdextension.h"
sl@0: 
sl@0: _LIT(KWsdExtName, "D_WSDEXTENSION.LDD");
sl@0: 
sl@0: /** Factory class */
sl@0: class DWsdExtLddFactory : public DLogicalDevice
sl@0: 	{
sl@0: public:
sl@0: 	DWsdExtLddFactory();
sl@0: 	virtual TInt Install();
sl@0: 	virtual void GetCaps(TDes8 &aDes) const;
sl@0: 	virtual TInt Create(DLogicalChannelBase*& aChannel);
sl@0: 	static TInt iData;
sl@0: 	};
sl@0: 
sl@0: /** Logical channel */
sl@0: class DWsdExtension : public DLogicalChannelBase
sl@0: 	{
sl@0: public:
sl@0: 	DWsdExtension();
sl@0: 	~DWsdExtension();
sl@0: protected:
sl@0: 	virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
sl@0: 	virtual TInt Request(TInt aReqNo, TAny* a1, TAny* a2);
sl@0: 	virtual TInt RequestUserHandle(DThread* aThread, TOwnerType aType);
sl@0: private:
sl@0: 	DThread* iClient;
sl@0: 	};
sl@0: 
sl@0: TInt DWsdExtLddFactory::iData = 0xEFEFEFEF;
sl@0: 
sl@0: /** Factory class */
sl@0: DWsdExtLddFactory::DWsdExtLddFactory()
sl@0: 	{
sl@0:     iParseMask=0;
sl@0:     iUnitsMask=0;
sl@0: 	}
sl@0: 
sl@0: /** Entry point for this driver */
sl@0: //DECLARE_EXTENSION_WITH_PRIORITY(LATE_EXTENSION_PRIORITY)
sl@0: DECLARE_STANDARD_EXTENSION()
sl@0: 	{
sl@0: 	Kern::Printf("D_WSDEXTENSION.LDD Start");
sl@0: 	DWsdExtLddFactory* device = new DWsdExtLddFactory;
sl@0: 	if(!device)
sl@0: 		return KErrNoMemory;
sl@0: 	TInt r = Kern::InstallLogicalDevice(device);
sl@0: 	return r;
sl@0: 	}
sl@0: 
sl@0: DECLARE_EXTENSION_LDD()
sl@0: 	{
sl@0: 	Kern::Printf("D_WSDEXTENSION.LDD Start 2");
sl@0: 	return new DWsdExtLddFactory;
sl@0: 	}
sl@0: /** Second stage constuctor */
sl@0: TInt DWsdExtLddFactory::Install()
sl@0: 	{
sl@0: 	Kern::Printf("D_WSDEXTENSION.LDD Install");
sl@0:     return(SetName(&KWsdExtName));
sl@0: 	}
sl@0: 
sl@0: /** Device capabilities */
sl@0: void DWsdExtLddFactory::GetCaps(TDes8& aDes)const
sl@0: 	{
sl@0: 		aDes.FillZ();
sl@0: 	}
sl@0: 
sl@0: /** Create logical channel, only open of one channel is allowed at a time */
sl@0: TInt DWsdExtLddFactory::Create(DLogicalChannelBase*& aChannel)
sl@0: 	{
sl@0:     if (iOpenChannels != 0) //A Channel is already open
sl@0: 		return KErrInUse;
sl@0:     aChannel = new DWsdExtension;
sl@0:     if(!aChannel)
sl@0: 		return KErrNoMemory;
sl@0:     return KErrNone;
sl@0: 	}
sl@0: 
sl@0: /** Create channel */
sl@0: TInt DWsdExtension::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
sl@0: 	{
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: /** Constructor of Logical channel */
sl@0: DWsdExtension::DWsdExtension()
sl@0: 	{
sl@0: 	iClient = &Kern::CurrentThread();
sl@0: 	((DObject*)iClient)->Open();
sl@0: 	}
sl@0: 
sl@0: /** Destructor */
sl@0: DWsdExtension::~DWsdExtension()
sl@0: 	{
sl@0: 	// Close our reference on the client thread
sl@0: 	Kern::SafeClose((DObject*&)iClient,NULL);
sl@0: 	}
sl@0: 
sl@0: /** Handle user side requests */
sl@0: TInt DWsdExtension::Request(TInt aReqNo, TAny* a1, TAny*)
sl@0: 	{
sl@0: 	switch(aReqNo)
sl@0: 		{
sl@0: 		case (RLddWsdExtension::EGET_STATIC_DATA):
sl@0: 			{ 
sl@0: 				TInt i=0;
sl@0: 				i=DWsdExtLddFactory::iData;
sl@0: 				kumemput(a1, &DWsdExtLddFactory::iData, sizeof(TInt));
sl@0: 				return KErrNone;
sl@0: 			}
sl@0: 		}
sl@0: 	return KErrNotSupported;
sl@0: 	}
sl@0: 
sl@0: /** Restricting handle duplication */
sl@0: TInt DWsdExtension::RequestUserHandle(DThread* aThread, TOwnerType aType)
sl@0: 	{
sl@0: 	if (aType!=EOwnerThread || aThread!=iClient)
sl@0: 		return KErrAccessDenied;
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: