--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/email/pop3andsmtpmtm/imapservermtm/src/FLDINDEX.CPP	Mon May 03 12:29:07 2010 +0300
@@ -0,0 +1,163 @@
+// Copyright (c) 1998-2009 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:
+// IMAP Folder indexing
+// 
+//
+
+#include "fldindex.h"
+#include "impspan.h"
+
+// Illegal UID we use for marker
+const TUint KIllegalUID	= 0xffffffff;
+
+CImImap4IndexEntry::CImImap4IndexEntry()
+	{
+	// Default values
+	iUid=0;
+	iMsvId=-1;
+	}
+
+CImImap4IndexEntry::CImImap4IndexEntry(CImImap4IndexEntry& aFrom)
+	{
+	// Copy entry
+	iUid=aFrom.iUid;
+	iMsvId=aFrom.iMsvId;
+	}
+
+CImImap4IndexEntry& CImImap4IndexEntry::operator=(CImImap4IndexEntry& aFrom)
+	{
+	// Copy entry
+	iUid=aFrom.iUid;
+	iMsvId=aFrom.iMsvId;
+	return(*this);
+	}
+
+CImImap4FolderIndex::CImImap4FolderIndex()
+	{
+	__DECLARE_NAME(_S("CImImap4FolderIndex"));
+	}
+
+CImImap4FolderIndex::~CImImap4FolderIndex()
+	{
+	// Dispose of index
+	delete iIndex;
+	}
+
+void CImImap4FolderIndex::Reset()
+	{
+	// Dispose of index
+	delete iIndex;
+	iIndex=NULL;
+	iSize=0;
+	}
+
+void CImImap4FolderIndex::SetSizeL(const TUint aEntries)
+	{
+	// Set number of entries
+	if (!iIndex)
+		{
+		// Create new array (granularity 8 entries)
+		iIndex=new (ELeave) CArrayFixFlat<CImImap4IndexEntry>(8);
+		}
+
+	// Alter size, filling unused entries with 0xffffffff
+	CImImap4IndexEntry blank;
+	blank.iUid=KIllegalUID;
+	blank.iMsvId=0;
+	iIndex->ResizeL(aEntries,blank);
+
+	// Save new size
+	iSize=aEntries;
+	}
+
+TInt CImImap4FolderIndex::Size()
+	{
+	// Return current size
+	return(iSize);
+	}
+
+void CImImap4FolderIndex::SetUid(const TUint aMsgNr, const TUint aMsgUid)
+	{
+	__ASSERT_ALWAYS(aMsgNr<=TUint(iSize),gPanic(EMsgnrOutOfRange));
+
+	// Is UID already set?
+	if ((*iIndex)[aMsgNr-1].iUid!=KIllegalUID && (*iIndex)[aMsgNr-1].iUid!=aMsgUid)
+		{
+		// CHANGING a UID? No way!
+		gPanic(ECantChangeUID);
+		}
+
+	// Set a UID for a message number
+	(*iIndex)[aMsgNr-1].iUid=aMsgUid;
+	}
+
+void CImImap4FolderIndex::SetMsvId(const TUint aMsgNr, const TMsvId aMsvId)
+	{
+	__ASSERT_ALWAYS(aMsgNr<=TUint(iSize),gPanic(EMsgnrOutOfRange));
+
+	// Is MsvId already set?
+	if ((*iIndex)[aMsgNr-1].iMsvId!=0 && (*iIndex)[aMsgNr-1].iMsvId!=aMsvId)
+		{
+		// CHANGING a MsvId? No way!
+		gPanic(ECantChangeMsvId);
+		}
+
+	// Set a MsvId for a message number
+	(*iIndex)[aMsgNr-1].iMsvId=aMsvId;
+	}
+
+void CImImap4FolderIndex::Expunge(const TUint aMsgNr)
+	{
+	__ASSERT_ALWAYS(aMsgNr<=TUint(iSize),gPanic(EMsgnrOutOfRange));
+
+	// Remove entry from index
+	iIndex->Delete(aMsgNr-1);
+	iSize--;
+	}
+
+TUint CImImap4FolderIndex::FindMsg(const TUint aMsgUid)
+	{
+	__ASSERT_ALWAYS(iSize>0,gPanic(EIndexEmpty));
+
+	// Replace this with a binary search...
+	TInt i=0;
+	do
+		{
+		// UID match?
+		if ((*iIndex)[i].iUid==aMsgUid)
+			return(i+1);
+
+		i++;
+		}
+	while(i<iSize);
+
+	// Failure (0 not a legal message number)
+	return(0);
+	}
+
+// Access entry directly
+CImImap4IndexEntry& CImImap4FolderIndex::operator[] (const TInt aIndex)
+	{
+	return((*iIndex)[aIndex]);
+	}
+
+// Sort index by UID
+void CImImap4FolderIndex::Sort()
+	{
+	// Sorting object
+	TKeyArrayFix uidKey(_FOFF(CImImap4IndexEntry,iUid),ECmpTUint32);
+
+	// Perform the sort
+	iIndex->Sort(uidKey);
+	}