messagingfw/msgsrvnstore/server/src/msvcacheindextableentry.Cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 18 Jan 2010 20:36:02 +0200
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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// CMSVCACHEINDEXTABLEENTRY.CPP
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// HEADER FILES
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// 
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//
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#include "msvcacheindextableentry.h"
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#include "msventryfreepool.h"
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#include "msvcacheentry.h"
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#if (defined SYMBIAN_MSGS_ENHANCED_REMOVABLE_MEDIA_SUPPORT)	
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	#include "msvindexadapter.h"
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#endif
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/**
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 * FUNCTION DEFINITION
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 */
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//****************************
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//CMsvCacheIndexTableEntry
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//****************************
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/**
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 * NewL()
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 * @param None.
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 * @return The newly created index table entry
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 * 
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 * It returns an instance of the CMsvCacheIndexTableEntry class, i.e. a newly 
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 * constructed index table with no entries in it.
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 */
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CMsvCacheIndexTableEntry* CMsvCacheIndexTableEntry::NewL()
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	{
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	CMsvCacheIndexTableEntry *self = new(ELeave) CMsvCacheIndexTableEntry();
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	return self;
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	}
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/**
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 * NewL()
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 * @param CMsvCacheEntry& : a new cache entry
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 * @return The newly created index table entry
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 * 
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 * It returns an instance of the CMsvCacheIndexTableEntry class with the passed entry
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 * added.
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 */
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CMsvCacheIndexTableEntry* CMsvCacheIndexTableEntry::NewL(CMsvCacheEntry*& aEntry)
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	{
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	CMsvCacheIndexTableEntry *self = CMsvCacheIndexTableEntry::NewLC(aEntry);
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	CleanupStack::Pop();
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	return self;
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	}
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/**
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 * NewLC()
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 * @param CMsvCacheEntry& : a new cache entry
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 * @return The newly created index table entry
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 * 
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 * It returns an instance of the CMsvCacheIndexTableEntry class 
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 * with the passed entry added. It leaves the object into cleanup stack.
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 */
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CMsvCacheIndexTableEntry* CMsvCacheIndexTableEntry::NewLC(CMsvCacheEntry*& aEntry)
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	{
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	CMsvCacheIndexTableEntry *self = new(ELeave) CMsvCacheIndexTableEntry();
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	CleanupStack::PushL(self);
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	self->AddEntryL(aEntry);
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	return self;
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	}
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/**
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 * NewL()
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 * @param RPointerArrayCMsvCacheEntry>& : RPointerArray reference to child entries
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 * @return The newly created index table entry
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 * 
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 * It returns an instance of the CMsvCacheIndexTableEntry class filled with child
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 * entries.
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 */
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CMsvCacheIndexTableEntry* CMsvCacheIndexTableEntry::NewL(RPointerArray<CMsvCacheEntry>& aEntries, TInt aInitIndex /*(DEFALUT=0)*/, TInt aCount /* DEFAULT = -1*/)
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	{
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	CMsvCacheIndexTableEntry *self = CMsvCacheIndexTableEntry::NewLC(aEntries, aInitIndex, aCount);
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	CleanupStack::Pop();
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	return self;
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	}
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/**
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 * NewLC()
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 * @param RPointerArrayCMsvCacheEntry>& : RPointerArray reference to child entries
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 * @return The newly created index table entry
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 * 
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 * It returns an instance of the CMsvCacheIndexTableEntry class filled with child
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 * entries. It leaves the object into cleanup stack.
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 */
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CMsvCacheIndexTableEntry* CMsvCacheIndexTableEntry::NewLC(RPointerArray<CMsvCacheEntry>& aEntries, TInt aInitIndex /*(DEFALUT=0)*/, TInt aCount /* DEFAULT = -1*/)
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	{
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	CMsvCacheIndexTableEntry *self = new(ELeave) CMsvCacheIndexTableEntry();
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	CleanupStack::PushL(self);
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	self->AddEntrySetL(aEntries, aInitIndex, aCount);
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	return self;
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	}
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   121
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/**
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 * CMsvCacheIndexTableEntry()
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 * @param None.
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 * @return None.
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 * 
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 * Constructor
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 */
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CMsvCacheIndexTableEntry::CMsvCacheIndexTableEntry()
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:iMinMsvId(0), iMaxMsvId(0), iFlags(EMsvCacheIndexTableClearFlag)
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	{
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	iTimeStamp.HomeTime(); //set the timestamp to number of seconds since Epoc.
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	iBlockPtr = NULL;
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	}
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/**
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 * ~CMsvCacheIndexTableEntry()
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 * @param None.
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 * @return None.
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 * 
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 * Destructor - releases the block to the cache free pool and sets it to NULL.
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 */
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CMsvCacheIndexTableEntry::~CMsvCacheIndexTableEntry()
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	{
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	//destructor should delete everything no matter if entries are locked or not
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	ReleaseBlock(ETrue);
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	}
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/**
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 * AddEntryL()
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 * @param CMsvCacheEntry& : reference to the CMsvCacheEntry to be added.
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 * @return None.
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 * 
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 * The function adds an entry into the index table. The entity who passes the entry
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 * to the function will give up ownership of the same and hence cannot modify or 
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 * delete it.
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 * 1. If the block is NULL, it creates a new one and appends the entry to the block
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 *    and accordingly sets the TMsvId ranges.
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 * 2. If block is not NULL, then append the entry to it.
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 * 	2.1 If the entry already exists in the block then release the old entry from the block and
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 *		append the new one.
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 * 	2.2 If the entry fits only at the end of the last block then we need to change
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 *      the iMaxMsvid.
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 *      If the indextable has not been created and if the folder has just one block, and this block contains
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 * 		random entries, then we may need to set the iMinMsvId.
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 */
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void CMsvCacheIndexTableEntry::AddEntryL(CMsvCacheEntry*& aEntry, TBool aReplace /* DEFAULT = EFalse*/)
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	{
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	TMsvId entryId = aEntry->GetId();
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	//	1. If the block is NULL, it creates a new one and appends the entry to the block
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	//     and accordingly sets the TMsvId ranges.
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	if(NULL == iBlockPtr)
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		{
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		iBlockPtr = new(ELeave) RPointerArray<CMsvCacheEntry>;
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		iBlockPtr->AppendL(aEntry);
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		SetMinMsvIdRange(entryId);
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		SetMaxMsvIdRange(entryId);
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		} //if(NULL == iBlockPtr)
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	//	2. If block is not NULL:
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	else
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		{
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		// 2.1 If the entry already exists in the block then release the old entry from the
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		//	   block and append the new one.
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		TInt blockSize = Size();
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		for(TInt blockIndex = 0; blockIndex < blockSize; ++blockIndex)
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			{
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			if((*iBlockPtr)[blockIndex]->GetId() == aEntry->GetId())
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				{
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				if(!aReplace)
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					{
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					CMsvEntryFreePool::Instance()->ReleaseEntry(aEntry);
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					aEntry = (*iBlockPtr)[blockIndex];
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					return;
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					}
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				CMsvEntryFreePool::Instance()->ReleaseEntry((*iBlockPtr)[blockIndex]);
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				iBlockPtr->Remove(blockIndex);
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				iBlockPtr->Insert(aEntry, blockIndex);
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				return;
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				}
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			}
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		iBlockPtr->AppendL(aEntry);
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		// 2.2 If the entry fits only at the end of the last block then we need to
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		//     change the iMaxMsvid.
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		//     If the indextable has not been created and if the folder has just
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		//     one block, and this block contains random entries, then we may need to 
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		//     set the iMinMsvId.
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		if(entryId > iMaxMsvId)
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			{
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			SetMaxMsvIdRange(entryId);
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			}
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		if(entryId < iMinMsvId)
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			{
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			SetMinMsvIdRange(entryId);
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			}
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		} //else
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	iTimeStamp.HomeTime();
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	}
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/**
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 * AddEntrySetL()
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 * @param RPointerArray<CMsvCacheEntry>& : reference to the new entry set to be added.
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 * 										   These entries can either be immediate children
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 * 										   or non-immediate children, but not both.
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 * @param TInt aInitIndex : Start index of the entry to be added in the entryList.
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 * @param TInt aCount     : Number of entries that should be added.
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 * @return None.
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 * 
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 * The function adds a set of entries to the index table. The caller who passes the 
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 * array of entries to the function will give up ownership of the entries in the array.
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 * 1. When the block is NULL:
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 * 	1.1 If children of a non-immediate folder are present in the array then set the 
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 *      grandchildren and dirty flags.
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 * 	1.2 If there aren't, then clear the above two flags.
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 * 	1.3 Assign the new entry set to the block, but reset the passed set so that
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 *	   the caller cannot modify or delete the cache entries.
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 * 2. When the block is not NULL:
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 *  2.1 If children of a non-immediate folder are present in the array then
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 *	    set the grandchildren flag and simply append entries to the block.
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 *  2.2 If there aren't, append entries avoiding duplication.
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 * 		2.2.1 Search for each entry that is present in the current block in the
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 *			  new set passed. If the entry is present then release it from the
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 *			  current block. If not then append to the new set.
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 * 		2.2.2 All entries are now in the passed array. Reset the current block,
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 *			  allocate space for it and copy the entries to it. Also reset the 
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 *			  passed array so that callers do not have access to the cache
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 *			  entries after the addition.
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 * 3. Calculate and set the maximum and minimum TMsvId ranges in the newly added set.
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 */
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void CMsvCacheIndexTableEntry::AddEntrySetL(RPointerArray<CMsvCacheEntry>& aEntries, TInt aInitIndex /*(DEFAULT=0)*/, TInt aCount /* DEFAULT=-1 */)
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	{
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	// Add all entries if aCount is -1.
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	TInt arrSize = aEntries.Count();
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	if(-1 == aCount)
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		{
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		aCount = arrSize;
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		}
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	if(aInitIndex < 0 || aInitIndex >= arrSize)
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		{
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		return;
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		}
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	// 1. When the block is NULL:
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	if(NULL == iBlockPtr)
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		{
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		//     Assign the new entry set to the block, but reset the passed set so that
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		//	   the caller cannot modify or delete the cache entries.
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		//	   Update the ranges of the block.
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		iBlockPtr = new(ELeave) RPointerArray<CMsvCacheEntry>;
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		for(TInt listIndex = 0; (listIndex < aCount) && (arrSize > listIndex+aInitIndex); ++listIndex)
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			{
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			iBlockPtr->AppendL(aEntries[listIndex+aInitIndex]);
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			}
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		} //if(NULL == iBlockPtr)
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	// 2. When the block is not NULL append the entries. If there is a duplicate entry,
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	//	  discard the new entry.
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	else
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		{
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		TBool entryFound = EFalse;
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		TInt blockSize = Size();
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		for(TInt listCount = 0; (listCount < aCount) && (arrSize > listCount+aInitIndex); ++listCount)
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			{
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			entryFound = EFalse;
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			for(TInt blockIndex = 0; blockIndex < blockSize; ++blockIndex)
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				{
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				if(aEntries[listCount+aInitIndex]->GetId() == (*iBlockPtr)[blockIndex]->GetId())
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					{
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					CMsvEntryFreePool::Instance()->ReleaseEntry(aEntries[listCount+aInitIndex]);
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					aEntries.Remove(listCount+aInitIndex);
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					aEntries.Insert((*iBlockPtr)[blockIndex], listCount+aInitIndex);
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					entryFound = ETrue;
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					break;
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					}
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				}   //for()
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			if(!entryFound)
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				{
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				iBlockPtr->AppendL(aEntries[listCount+aInitIndex]);
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				}			
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			}   //for()
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		} //else
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	iTimeStamp.HomeTime();
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	}
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/**
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 * GetEntry()
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 * @param TMsvId : the TMsvId of the entry to be fetched.
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 * @param CMsvCacheEntry*& : output parameter for the entry.
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 * @return TBool.
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 * 
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 * The function fetches the entry with the specified TMsvId.
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 * 1. If the block is NULL, there is no entry that can be fetched. Return EFalse.
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 * 2. Iterate through the block searching for the TMsvId and return ETrue for a hit
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 * 3. Return EFalse if the entry is not present in the block.
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 */
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TBool CMsvCacheIndexTableEntry::GetEntry(TMsvId aId, CMsvCacheEntry*& aEntry)
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	{
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	// 1. If the block is NULL, there is no entry that can be fetched. Return EFalse.
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	if(NULL == iBlockPtr)
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		{
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		aEntry = NULL;
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		return EFalse;
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		}
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   337
	
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	//	2. Iterate through the block searching for the TMsvId and return ETrue for a hit.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   339
	TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   340
	for(TInt index = 0 ; index < blockSize ; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   341
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   342
		if((*iBlockPtr)[index]->GetId() ==  aId)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
			{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
			aEntry = (*iBlockPtr)[index];
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
			iTimeStamp.HomeTime();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
			return ETrue;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
			}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
		} //for
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
	//	3. Return EFalse if the entry is not present in the block.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
	return EFalse;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
 * GetChildrenL()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
 * @param TMsvId : TMsvId of the parent entry of the entries to be fetched.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
 * @param RPointerArray<CMsvCacheEntry>*& : output parameter for the entries to be
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
 *        fetched.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
 * @return None.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
 * 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
 * The function fetches a set of entries with the specified parent TMsvId.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
 * 1. Check if there are grandchildren present in the block.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
 * 	1.1. If yes, then fetch only those entries with parent Id as aParentId.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
 * 		 If the array of entries is NULL, then allocate space for it.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
 * 	1.2. If not, then return a copy of the whole block.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
void CMsvCacheIndexTableEntry::GetChildrenL(TMsvId aParentId, RPointerArray<CMsvCacheEntry>& aEntries) /*const*/
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
	{ 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
	// 1. Check if there are grandchildren present in the block.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
	if(IsGrandChildPresent())
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
		// 1.1 If yes, then fetch only those entries with parent Id as aParentId.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
		//       If the array of entries is NULL, then allocate space for it.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
		TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
		for(TInt index = 0 ; index < blockSize ; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
			{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
			if((*iBlockPtr)[index]->Entry().Parent() == aParentId)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
				{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
				aEntries.AppendL((*iBlockPtr)[index]);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
				}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
			}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
		} //if(IsGrandChildPresent())
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
	else
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
		// 1.2 If not, then return a copy of the whole block.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
		TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
		for(TInt index = 0 ; index < blockSize ; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
			{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
			aEntries.AppendL((*iBlockPtr)[index]);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
			}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
		} //else
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
	iTimeStamp.HomeTime();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
 * DeleteEntryL()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
 * @param TMsvId : the TMsvId of the entry to be deleted.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
 * @param aParentIdOfEntry
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
 * @param aForceDelete TBool, it indicates whether the entry needs to be locked while deleting.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
 * @return None.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
 * 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
 * The function deletes an entry from the cache releasing the entry to the cache free
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
 * pool. The function is called when the entry is being deleted from both the DB and
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
 * cache.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
 * 1. Return if the block is NULL.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
 * 2. Iterate through the block searching for the TMsvId.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
 *	2.1 If the entry exists, remove it and release to the free pool. Deletion
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
 *		 is possible only if the entry is locked in the cache, otherwise the function
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
 * 		 returns KErrAccessDenied.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
 * 		 2.1.1 If the entry deleted was the last entry in the block, delete the
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
 *		        block.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
 * 3. Leave with KErrNotFound if the entry does not exist in the block.	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
void CMsvCacheIndexTableEntry::DeleteEntryL(TMsvId aId, TMsvId& aParentIdOfEntry /*DEFAULT = NULL*/, TBool aForceDelete /*DEFAULT=EFalse*/)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
	{ 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
	// 1. Return if the block is NULL.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
	if(NULL == iBlockPtr)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
		User::Leave(KErrNotFound);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
	//	2. Iterate through the block searching for the TMsvId.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
	TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
	for(TInt index = 0 ; index < blockSize ; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
		//	2.1 If the entry exists, remove it and release to the free pool. Deletion
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
		//		 is possible only if the entry is locked in the cache.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
		if((*iBlockPtr)[index]->GetId() ==  aId)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
			{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
			if(aForceDelete || (*iBlockPtr)[index]->IsEntryLocked())
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
				{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
				aParentIdOfEntry = (*iBlockPtr)[index]->Entry().Parent();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
				CMsvEntryFreePool::Instance()->ReleaseEntry((*iBlockPtr)[index]);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
				iBlockPtr->Remove(index);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
				// 2.1.1. If the entry deleted was the last entry in the block,
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
				//        delete the block.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
				if(iBlockPtr->Count() == 0)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
					{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
					iBlockPtr->Close();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
					delete iBlockPtr;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
					iBlockPtr = NULL;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
					}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
				iTimeStamp.HomeTime();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
				}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
			else
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
				{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
				User::Leave(KErrAccessDenied);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
				}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
			return;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
			}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
		} //for
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
	// 3. Leave with KErrNotFound if the entry does not exist in the block.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
	User::Leave(KErrNotFound);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
 * ReleaseBlock()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
 * @param TBool: internally used flag which is used by destructor to forcibly swap out
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
 * 				 the block even if entries have been locked.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
 * @return TBool: EFalse if block cannot be released as a result of entries having been
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
 * 				  locked in the cache, ETrue if otherwise.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
 * 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
 * The function releases a block to the cache free pool.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
 * 1. Return EFalse if any of the entries in the block have been locked. Do not
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
 *    swap out the block to the free pool if so.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
 * 2. No entries are locked and/or the block is to be swapped out forcibly.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
 *  2.1 Release the entries to the free pool.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
 *  2.2 Free the memory allocated to the block itself.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
 *  2.3 Set the dirty flag.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
TBool CMsvCacheIndexTableEntry::ReleaseBlock(TBool aForceRelease /*DEFAULT = EFalse*/)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
	{ 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
	if(NULL == iBlockPtr)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
		return ETrue;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
	// 1. Return EFalse if any of the entries in the block have been locked. Do not
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
	//	  swap out the block to the free pool if so.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
	if(!aForceRelease)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
		TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
		for(TInt index = 0; index < blockSize; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
			{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
			if(!(*iBlockPtr)[index]->IsEntrySwappable())
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
				{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
				return EFalse;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
				}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
			}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
	// 2. No entries are locked and the block can be swapped out safely.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
	CMsvEntryFreePool::Instance()->ReleaseEntrySet(*iBlockPtr);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
	iBlockPtr->Close();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
	delete iBlockPtr;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
	iBlockPtr = NULL;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
	SetDirty();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
	return ETrue;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
 * CompareOrder()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
 * @param const CMsvCacheEntry& : the first operand
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
 * @param const CMsvCacheEntry& : the second operand
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
 * @return TInt : the order (-1/0/+1)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
 * 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
 * The function returns the order for the sort operation.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
static TInt CompareOrder(const CMsvCacheEntry& aFirst, const CMsvCacheEntry& aSecond)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
	{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
	return aFirst.GetId() - aSecond.GetId();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
 * SortBlockL()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
 * @param None.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
 * @return None.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
 * 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
 * The function is called by a background active object to sort the index table
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
 * according to TMsvIds of the entries.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
 * 1. Sort based on the order in the TLinearOrder package.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
void CMsvCacheIndexTableEntry::SortBlock()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
	{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
	if(iBlockPtr != NULL)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
		//	1. Sort based on the order in the TLinearOrder package.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
		TLinearOrder<CMsvCacheEntry> order(CompareOrder);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
		iBlockPtr->Sort(order);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
 * EntryExists()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
 * @param TMsvId : the Id of the entry to be checked for existence.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
 * @return TBool : success/failure.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
 * 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
 * The function return EFalse if either the block is NULL or the entry does not exist.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
 * ETrue is returned for a hit.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
TBool CMsvCacheIndexTableEntry::EntryExists(TMsvId aId) const
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
 	{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
 	if(NULL == iBlockPtr)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
		return EFalse;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   553
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   554
 	TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   555
 	for(TInt index = 0 ; index < blockSize ; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   556
 		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   557
 		if(aId == (*iBlockPtr)[index]->GetId())
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   558
 			{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   559
 			return ETrue;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   560
 			}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   561
 		} //for
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   562
 	return EFalse;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   563
 	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   564
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   565
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   566
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   567
 * UpdateChildMsvIdsL()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   568
 * @param TMsvId : TMsvId of the parent entry.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   569
 * @param TMsvId : TMsvId of the child entry.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   570
 * @param TBool : flag, set to ETrue if aChildId is to be added, and EFalse if it is
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   571
 * 				  to be removed from the parent's child array.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   572
 * @return None.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   573
 * 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   574
 * The function updates the child array of the parent entry if it is not NULL.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   575
 * 1. Return if the block is NULL, i.e. the parent is not in the cache.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   576
 * 2. Iterate through the block searching for the parent entry.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   577
 * 	2.1 If the iChildIdArray is not NULL:
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   578
 * 		2.1.1 If the child has to be added as a consequence of it being
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   579
 *				  added to the cache, then append it to the child array.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   580
 * 		2.1.2 If the child has to be removed as a consequence to the child
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   581
 * 		       entry being deleted, then remove it from the child array.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   582
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   583
void CMsvCacheIndexTableEntry::UpdateChildMsvIdsL(TMsvId aParentId, TMsvId aChildId, TBool aAdd /*DEFAULT = ETrue*/)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   584
	{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   585
	// 1. Return if the block is NULL, i.e. the parent is not in the cache.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   586
	if(NULL == iBlockPtr)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   587
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   588
		return;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   589
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   590
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   591
	//	2. Iterate through the block searching for the parent entry.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   592
	TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   593
	for(TInt index = 0 ; index < blockSize ; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   594
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   595
		if((*iBlockPtr)[index]->GetId() ==  aParentId)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   596
			{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   597
			RArray<TMsvId>* childArr = (*iBlockPtr)[index]->ChildIdArray();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   598
			// 2.1 If the iChildIdArray is not NULL: i.e GetChildren has been performed
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   599
			if(childArr != NULL)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   600
				{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   601
				// 2.1.1 If the child has to be added as a consequence of it being
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   602
				//		  added to the cache, then append it to the child array.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   603
				TInt arrSize = childArr->Count();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   604
				if(aAdd)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   605
					{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   606
					TInt index = childArr->Find(aChildId);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   607
					if(index == KErrNotFound)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   608
						{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   609
						childArr->AppendL(aChildId);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   610
						}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   611
					}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   612
				
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   613
				// 2.1.2 If the child has to be removed as a consequence to the child
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   614
				//        entry being deleted, then remove it from the child array.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   615
				else
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   616
					{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   617
					TInt index = childArr->Find(aChildId);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   618
					if(index != KErrNotFound)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   619
						{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   620
						childArr->Remove(index);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   621
						}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   622
					}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   623
				} //if(((*iBlockPtr)[index]->ChildIdArray()) != NULL)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   624
			return;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   625
			} //if((*iBlockPtr)[index]->GetId() ==  aParentId)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   626
		} //for(TInt index = 0 ; index < Size() ; index++)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   627
}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   628
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   629
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   630
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   631
 * UpdateChildMsvIdsL()
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   632
 * @param RPointerArray<CMsvCacheEntry>& : array of complete set of child 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   633
 * 										   CMsvCacheEntries sorted by TMsvId.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   634
 * @return None.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   635
 * 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   636
 * The function updates, or creates if necessary, a parent entry's iChildIdArray with
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   637
 * the children entries passed to it in the form of a RPointerArray.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   638
 * 1. Return if the block is NULL, i.e. the parent is not in the cache.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   639
 * 2. Otherwise, find the parent sequentially.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   640
 * 	2.1 If the parent is found:
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   641
 * 		2.1.1 If the parent already has a iChildIdArray, i.e. if GetChildren() has
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   642
 * 			   been performed on it, delete and create a new child array with the 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   643
 * 			   entries passed. If iChildIdArray is NULL then GetChildren() has not been
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   644
 *			   performed on the entry yet, in which case append the passed children.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   645
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   646
void CMsvCacheIndexTableEntry::UpdateChildMsvIdsL(RPointerArray<CMsvCacheEntry>& aEntries)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   647
	{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   648
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   649
	// 1. Return if the block is NULL, i.e. the parent is not in the cache.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   650
	if(NULL == iBlockPtr)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   651
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   652
		return;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   653
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   654
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   655
	// 2. Otherwise, find the parent sequentially.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   656
	TMsvId parentId = aEntries[0]->Entry().Parent();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   657
	TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   658
	for(TInt index = 0 ; index < blockSize ; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   659
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   660
		// 2.1 If the parent is found:
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   661
		if((*iBlockPtr)[index]->Entry().Id() == parentId)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   662
			{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   663
			// 2.1.1 If the parent already has a iChildIdArray, i.e. if GetChildren() has
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   664
			// been performed on it, delete and create a new child array with the 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   665
			// entries passed. If iChildIdArray is NULL then GetChildren() has not been
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   666
			// performed on the entry yet, in which case append the passed children.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   667
			RArray<TMsvId>* childArr = (*iBlockPtr)[index]->ChildIdArray();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   668
			TInt entryCount = aEntries.Count();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   669
			if(NULL == childArr)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   670
				{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   671
				childArr = new(ELeave) RArray<TMsvId>;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   672
				(*iBlockPtr)[index]->SetChildIdArray(childArr);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   673
				}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   674
			else
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   675
				{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   676
				childArr->Reset();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   677
				}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   678
			while(0 < entryCount)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   679
				{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   680
				TInt leave = childArr->Append(aEntries[--entryCount]->GetId());
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   681
				if(KErrNone != leave)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   682
					{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   683
					childArr->Close();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   684
					delete childArr;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   685
					(*iBlockPtr)[index]->SetChildIdArray(NULL);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   686
					User::Leave(leave);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   687
					}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   688
				}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   689
			return;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   690
			} //if((*iBlockPtr)[index]->Entry().Parent() == parentId)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   691
		} //for(TInt index = 0 ; index < blockSize ; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   692
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   693
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   694
	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   695
/**
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   696
 *SplitBlock
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   697
 *This will be called when the block size will be more than 120, this will split the block
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   698
 * into 2 blocks.	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   699
 *@param aSplitBlock 	RPointerArray<CMsvCacheEntry>& that will be filled with CMsvCacheEntries,
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   700
 *@param aMaxId			The maximum TMsvId of the first block.		 
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   701
 *@return void
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   702
 *	
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   703
 */
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   704
void CMsvCacheIndexTableEntry::SplitBlockL(RPointerArray<CMsvCacheEntry>& aSplitBlock)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   705
	{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   706
	TInt size = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   707
	TInt i = size/2;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   708
	while(i < size)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   709
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   710
		aSplitBlock.AppendL((*iBlockPtr)[size/2]);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   711
		iBlockPtr->Remove(size/2);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   712
		i++;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   713
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   714
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   715
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   716
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   717
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   718
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   719
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   720
#if (defined SYMBIAN_MESSAGESTORE_UNIT_TESTCODE)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   721
#ifdef _DEBUG
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   722
// To print message index cache.
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   723
void CMsvCacheIndexTableEntry::Print(RFileLogger& aLogger)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   724
	{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   725
	_LIT(KId, "       ID: ");
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   726
	_LIT(KParentId, "    ParentId: ");
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   727
	TInt blockSize = Size();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   728
	for(TInt index=0; index<blockSize; ++index)
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   729
		{
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   730
		RBuf text;
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   731
		text.Create(150);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   732
		text.Append(KId);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   733
		text.AppendNum((*iBlockPtr)[index]->Entry().Id());
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   734
		text.Append(KParentId);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   735
		text.AppendNum((*iBlockPtr)[index]->Entry().Parent());
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   736
		text.Append(_L("    VisibleEntry: "));
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   737
		text.AppendNum((*iBlockPtr)[index]->Entry().VisibleFolderFlag());
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   738
		text.Append(_L("	Complete flag:"));
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   739
		text.AppendNum((*iBlockPtr)[index]->Entry().Complete());
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   740
		text.Append(_L("    	Description:"));
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   741
		text.Append((*iBlockPtr)[index]->Entry().iDetails);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   742
		aLogger.Write(text);
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   743
		text.Close();
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   744
		}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   745
	}
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   746
#endif 		// #ifdef _DEBUG
8e480a14352b Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   747
#endif		// #if (defined SYMBIAN_MESSAGESTORE_UNIT_TESTCODE)