loggingservices/eventlogger/LogCli/src/LogChangeDefinition.cpp
changeset 0 08ec8eefde2f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/loggingservices/eventlogger/LogCli/src/LogChangeDefinition.cpp	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,241 @@
+// Copyright (c) 2002-2009 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 "LogChangeDefinition.h"
+
+// User includes
+#include "logclipanic.h"
+
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// -----> CLogChangeDefinition (source)
+/////////////////////////////////////////////////////////////////////////////////////////
+
+CLogChangeDefinition::CLogChangeDefinition(TInt aGranularity)
+:	iChanges(aGranularity)
+	{
+	}
+
+EXPORT_C CLogChangeDefinition::~CLogChangeDefinition()
+	{
+	iChanges.Close();
+	}
+
+void CLogChangeDefinition::ConstructL(const CLogChangeDefinition& aCopy)
+	{
+	const TInt count = aCopy.Count();
+	for(TInt i=0; i<count; i++)
+		{
+		const TLogShdChangeDetails& item = aCopy.iChanges[i];
+		User::LeaveIfError(iChanges.Append(item));
+		}
+	}
+
+EXPORT_C CLogChangeDefinition* CLogChangeDefinition::NewL(TInt aGranularity)
+	{
+	CLogChangeDefinition* self = new(ELeave) CLogChangeDefinition(aGranularity);
+	return self;
+	}
+
+EXPORT_C CLogChangeDefinition* CLogChangeDefinition::NewL(const CLogChangeDefinition& aCopy)
+	{
+	const TInt count = Max(1, aCopy.Count());
+	CLogChangeDefinition* self = new(ELeave) CLogChangeDefinition(count);
+	CleanupStack::PushL(self);
+	self->ConstructL(aCopy);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+EXPORT_C CLogChangeDefinition* CLogChangeDefinition::NewL(RReadStream& aStream)
+	{
+	CLogChangeDefinition* self = new(ELeave) CLogChangeDefinition(KLogChangeDefinitionDefaultGranularity);
+	CleanupStack::PushL(self);
+	aStream >> *self;
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////
+
+EXPORT_C TInt CLogChangeDefinition::Count() const
+	{
+	return iChanges.Count();
+	}
+
+EXPORT_C TLogDatabaseChangeType CLogChangeDefinition::At(TInt aIndex) const
+	{
+	const TLogShdChangeDetails& entry = iChanges[aIndex];
+	return entry.iType;
+	}
+
+EXPORT_C TLogDatabaseChangeType CLogChangeDefinition::At(TInt aIndex, TLogId& aId) const
+	{
+	const TLogShdChangeDetails& entry = iChanges[aIndex];
+	aId = entry.iId;
+	return entry.iType;
+	}
+
+EXPORT_C TLogDatabaseChangeType CLogChangeDefinition::At(TInt aIndex, TLogId& aId, TInt& aViewIndex) const
+	{
+	const TLogShdChangeDetails& entry = iChanges[aIndex];
+	aId = entry.iId;
+	aViewIndex = entry.iViewIndex;
+	return entry.iType;
+	}
+
+EXPORT_C TInt CLogChangeDefinition::Find(TLogId aId) const
+	{
+	// Linear search
+	const TLogShdChangeDetails entryToFind(aId);
+	TIdentityRelation<TLogShdChangeDetails> relation(CompareEntryIds);
+	const TInt position = iChanges.Find(entryToFind, relation);
+	return position;
+	}
+
+EXPORT_C TInt CLogChangeDefinition::Find(TLogId aId, TLogDatabaseChangeType aType) const
+	{
+	// First try and find any log id regardless of change type
+	TInt position = Find(aId);
+	if	(position >= 0)
+		{
+		const TInt count = iChanges.Count();
+
+		// Keep iterating through the changes until we 
+		//
+		// a) Reach the end of the changes OR
+		// b) Reach a change corresponding to a different log id OR
+		// c) Find the change we're interested in
+		TInt i = position;
+		position = KErrNotFound;
+		//
+		for(; i<count; i++)
+			{
+			const TLogShdChangeDetails& entry = iChanges[i];
+			if	(entry.iId == aId)
+				{
+				// Now check the change type
+				if	(entry.iType == aType)
+					{
+					// (c)
+					position = i;
+					break;
+					}
+				}
+			else
+				{
+				// (b)
+				break;
+				}
+			}
+		// (a) is implicit
+		}
+	return position;
+	}
+
+EXPORT_C TInt CLogChangeDefinition::FindByViewIndex(TInt aViewIndex) const
+	{
+	// Cannot use binary search
+	const TLogShdChangeDetails entryToFind(KLogNullId, ELogChangeTypeUndefined, aViewIndex);
+	TIdentityRelation<TLogShdChangeDetails> relation(CompareViewIndicies);
+	const TInt position = iChanges.Find(entryToFind, relation);
+	return position;
+	}
+
+EXPORT_C void CLogChangeDefinition::AddL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex)
+	{
+	switch(aType)
+		{
+	case ELogChangeTypeEventChanged:
+	case ELogChangeTypeEventChangedHidden:
+	case ELogChangeTypeEventAdded:
+	case ELogChangeTypeEventDeleted:
+	case ELogChangeTypeLogCleared:
+		AddToContainerL(aId, aType, aViewIndex);
+		break;
+	//
+	default:
+	case ELogChangeTypeUndefined:
+		__ASSERT_ALWAYS(0, Panic(ELogUndefinedChangeType));
+		break;
+		}
+	}
+
+EXPORT_C void CLogChangeDefinition::Reset()
+	{
+	iChanges.Reset();
+	iChanges.GranularCompress();
+	}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////
+
+EXPORT_C void CLogChangeDefinition::InternalizeL(RReadStream& aStream)
+	{
+	TLogShdChangeDetails entry;
+	//
+	TCardinality count;
+	aStream >> count;
+	//
+	for(TInt i=0; i<count; i++)
+		{
+		entry.iId = static_cast<TLogId>(aStream.ReadInt32L());
+		entry.iType = static_cast<TLogDatabaseChangeType>(aStream.ReadUint8L());
+		entry.iViewIndex = static_cast<TInt>(aStream.ReadInt32L());
+		//
+		User::LeaveIfError(iChanges.Append(entry));
+		}
+	}
+
+EXPORT_C void CLogChangeDefinition::ExternalizeL(RWriteStream& aStream) const
+	{
+	TCardinality count = Count();
+	aStream << count;
+	//
+	for(TInt i=0; i<count; i++)
+		{
+		const TLogShdChangeDetails& entry = iChanges[i];
+		//
+		aStream.WriteInt32L(entry.iId);
+		aStream.WriteUint8L(entry.iType);
+		aStream.WriteInt32L(entry.iViewIndex);
+		}
+	}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////
+
+TBool CLogChangeDefinition::CompareEntryIds(const TLogShdChangeDetails& aLeft, const TLogShdChangeDetails& aRight)
+	{
+	return (aLeft.iId == aRight.iId);
+	}
+
+TBool CLogChangeDefinition::CompareViewIndicies(const TLogShdChangeDetails& aLeft, const TLogShdChangeDetails& aRight)
+	{
+	return (aLeft.iViewIndex == aRight.iViewIndex);
+	}
+
+void CLogChangeDefinition::AddToContainerL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex)
+	{
+	const TLogShdChangeDetails entry(aId, aType, aViewIndex);
+	const TInt error = iChanges.Append(entry);
+	User::LeaveIfError(error);
+	}
+
+