diff -r 9aca3be14c27 -r 75252ea6123b kerneltest/e32test/system/d_khal.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/system/d_khal.cpp	Mon Jul 26 10:52:56 2010 +0100
@@ -0,0 +1,284 @@
+// Copyright (c) 2010 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\system\d_khal.cpp
+// LDD for testing class Kern HAL APIs
+// Kern::AddHalEntry(), Kern::RemoveHalEntry(), Kern::FindHalEntry()
+// 
+//
+
+#include <kernel/kernel.h>
+
+#include "d_khal.h"
+
+#define KMaxDeviceNumber 8 // same as KMaxHalEntries
+
+TUint 	gDeviceNumber=1;			// Device Number
+TUint	gRegisteredDeviceNumber;	// Holds the device number which we managed to register for
+TBool	gEntryForDevice0Registered; // indicator whether the device0 got registered
+TBool	gEntryForDeviceXRegistered;	// States HAL Entry Successfully registered or not
+TBool	gFirstCall=ETrue;			// for add function, this tells if this is first call or not
+
+class DKHalLDDTestFactory : public DLogicalDevice
+//
+// Test LDD factory
+//
+	{
+public:
+	DKHalLDDTestFactory();
+	virtual TInt Install(); 								//overriding pure virtual
+	virtual void GetCaps(TDes8& aDes) const;				//overriding pure virtual
+	virtual TInt Create(DLogicalChannelBase*& aChannel); 	//overriding pure virtual
+	};
+
+class DKHalLDDTestChannel : public DLogicalChannelBase
+//
+// Test logical channel
+//
+	{
+public:
+	virtual ~DKHalLDDTestChannel();
+protected:
+	virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
+	virtual TInt Request(TInt aReqNo, TAny* a1, TAny* a2);
+	};
+
+
+LOCAL_C TInt halFunction0(TAny* /*aPtr*/, TInt aFunction, TAny* /*a1*/, TAny* /*a2*/)
+	{
+	TInt r=KErrNotSupported;
+
+	switch(aFunction)
+		{
+		case RLddKHalTest::ETestHalFunc:
+			Kern::Printf("HAL function0 called successfully !");
+			r=KErrNone; // just return KErrNone
+			break;
+		default:
+			break;
+		}
+	return r;
+	}
+
+
+LOCAL_C TInt halFunctionX(TAny* /*aPtr*/, TInt aFunction, TAny* /*a1*/, TAny* /*a2*/)
+	{
+	TInt r=KErrNotSupported;
+
+	switch(aFunction)
+		{
+		case RLddKHalTest::ETestHalFunc:
+			Kern::Printf("HAL functionX called successfully !");
+			r=KErrNone; // just return KErrNone
+			break;
+		default:
+			break;
+		}
+	return r;
+	}
+
+DECLARE_STANDARD_LDD()
+	{
+	return new DKHalLDDTestFactory;
+	}
+
+//
+// Constructor
+//
+DKHalLDDTestFactory::DKHalLDDTestFactory()
+	{
+	}
+
+TInt DKHalLDDTestFactory::Create(DLogicalChannelBase*& aChannel)
+	{
+//
+// Create new channel
+//  
+	aChannel=new DKHalLDDTestChannel;
+	return aChannel?KErrNone:KErrNoMemory;
+	}
+
+TInt DKHalLDDTestFactory::Install()
+//
+// Install the LDD - overriding pure virtual
+	{
+	return SetName(&KLddName);
+	}
+
+void DKHalLDDTestFactory::GetCaps(TDes8& /*aDes*/) const
+//
+// Get capabilities - overriding pure virtual
+//
+	{
+	}
+
+TInt DKHalLDDTestChannel::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
+//
+// Create channel
+//
+	{
+	return KErrNone;
+	}
+
+DKHalLDDTestChannel::~DKHalLDDTestChannel()
+//
+// Destructor
+//
+	{
+	}
+
+TInt DKHalLDDTestChannel::Request(TInt aReqNo, TAny* /*a1*/, TAny* /*a2*/)
+	{
+	TInt r=KErrNone;
+	switch(aReqNo)
+		{
+		case RLddKHalTest::EAddHalEntryDevice0:
+			{
+			// try to register the halfunction for PlatformSpecific category, device 0
+            NKern::ThreadEnterCS();
+			r=Kern::AddHalEntry(EHalGroupPlatformSpecific2,halFunction0,this);
+			NKern::ThreadLeaveCS();
+			//this function gets called twice, second time must not changed these values
+			if (gFirstCall)
+				{
+				if (r==KErrNone)
+					{
+					gEntryForDevice0Registered=ETrue;
+					}
+				else
+					{
+					gEntryForDevice0Registered=EFalse;
+					}
+				gFirstCall=EFalse;
+				}
+
+			break;
+			}
+		case RLddKHalTest::EAddHalEntryDeviceX:
+			{
+			// try to register the halfunction for PlatformSpecific category, device x
+            NKern::ThreadEnterCS();
+			do
+				{
+				r=Kern::AddHalEntry(EHalGroupPlatformSpecific2,halFunctionX,this,gDeviceNumber);
+				}
+            while((r==KErrInUse) && (++gDeviceNumber < KMaxDeviceNumber));
+			NKern::ThreadLeaveCS();
+
+			if((gDeviceNumber < KMaxDeviceNumber) && (r==KErrNone))
+				{
+				gEntryForDeviceXRegistered=ETrue;
+				gRegisteredDeviceNumber=gDeviceNumber;
+				}
+			else
+				{
+				gEntryForDeviceXRegistered=EFalse;
+				r=KErrInUse;
+				}
+
+			break;
+			}
+		case RLddKHalTest::EAddHalEntryForExistingFixed:
+			{
+			// try to add HAL entry for Kernel, should fail
+            NKern::ThreadEnterCS();
+			r=Kern::AddHalEntry(EHalGroupKernel,halFunction0,this);
+			NKern::ThreadLeaveCS();
+			break;
+			}
+		case RLddKHalTest::ERemoveHalEntryDevice0:
+			{
+			// try to remove the registered halfunction for device 0
+			if(gEntryForDevice0Registered)
+				r=Kern::RemoveHalEntry(EHalGroupPlatformSpecific2);
+		
+			break;
+			}
+		case RLddKHalTest::ERemoveHalEntryDeviceX:
+			{
+			// try to remove the registered halfunction for device x
+			if(gEntryForDeviceXRegistered)
+				r=Kern::RemoveHalEntry(EHalGroupPlatformSpecific2,gRegisteredDeviceNumber);
+			break;
+			}
+		case RLddKHalTest::ERemoveHalEntryExistingFixed:
+			{
+			// try to remove EGroupHalKernel. This operation should return an error
+			r=Kern::RemoveHalEntry(EHalGroupKernel);
+			break;
+			}
+		case RLddKHalTest::EGetRegisteredDeviceNumber:
+			{
+			// return the device number which we managed to register
+			if(gEntryForDeviceXRegistered)
+				{
+				r=gRegisteredDeviceNumber;
+				}
+			else
+				{
+				r=KErrNotFound;
+				}
+			break;
+			}
+		case RLddKHalTest::EFindHalEntryDevice0:
+			{
+			SHalEntry* pEntry=Kern::FindHalEntry(EHalGroupPlatformSpecific2);
+			// returns valid pEntry if EAddHalEntryForDevice0 managed to register
+			// an entry earlier
+			if (pEntry && pEntry->iFunction!=NULL)
+				{
+				r=KErrNone;
+				}
+			else
+				{
+				r=KErrNotFound;
+				}
+			break;
+			}
+		case RLddKHalTest::EFindHalEntryDevice0Other:
+			{
+			SHalEntry* pEntry=Kern::FindHalEntry(EHalGroupKernel);
+			//try to find an existing HAL group (kernel must exist)
+			if (pEntry && pEntry->iFunction!=NULL)
+				{
+				r=KErrNone;
+				}
+			else
+				{
+				r=KErrNotFound;
+				}
+			break;
+			}
+		case RLddKHalTest::EFindHalEntryDeviceX:
+			{
+			SHalEntry* pEntry=Kern::FindHalEntry(EHalGroupPlatformSpecific2,gRegisteredDeviceNumber);
+			// Should return valid pEntry if EAddHalEntryForDeviceX managed to register
+			// one earlier
+			if (pEntry && pEntry->iFunction!=NULL)
+				{
+				r=KErrNone;
+				}
+			else
+				{
+				r=KErrNotFound; 
+				}
+			break;
+			}
+
+		default:
+			r=KErrNotSupported;
+			break;
+		} 
+
+	return r;
+	}