--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zeroconf/cachemanager/inc/mdnscachemgr.h	Thu Jun 24 19:09:47 2010 +0530
@@ -0,0 +1,88 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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: 
+*
+*/
+
+#ifndef MDNSCACHEMGR_H_
+#define MDNSCACHEMGR_H_
+
+
+#include <e32cmn.h> 
+#include <mdns/dnsconstants.h>
+
+
+class CDnsResourceData;
+class CCacheEntry;
+
+
+class MDNSCacheMgr
+	{
+	public:
+
+	/*Inserts a new entry into the Cache
+	 @param CDnsResourceData, Resource Record
+	 @param aAuthoritative indicates whether the record being inserted is authoritative
+	 @param aSessionId, to indicate to which Session does the entry belong to
+	 @leave KErrNoMemory if memory could not be allocated to store the copies of Key and Value*/
+	virtual void UpdateCacheL(CDnsResourceData& aEntry,TBool aAuthoritative,TUint32 aSessionId)=0;
+	
+	/*Caters to finding varying types of records, for e.g:- find all the entries
+	 that correspond to a particular service type or find the host name through the address record
+	 @param aEntries List of entries that match the search constraint
+	 @param	aInfo could represent any serach constraint Service Instance Type or the Host Name
+	 @param aType the desired record type
+	 */
+	virtual TInt FindServiceL(RPointerArray <CCacheEntry> & aEntries,const TDesC8& aName,TDnsType aType)const=0;
+
+	/*Deletes the specified entry from the Cache
+	 @param aServiceInstanceName Instance Name , whose entry needs to be deleted 
+	 @leave KErrNotFound if specified entry is not found
+	 */
+	virtual TInt DeleteEntryL(const TDesC8& aServiceInstanceName)=0;
+
+	
+	/*Flush all the entries in the cache
+		 * 1. On start up
+		 * 2. On Failure
+		 * 3. On Topology change
+		 */
+	virtual void FlushCache()=0;		
+	
+	/*During Iteration, fetches the next stale entry ( entry whose ttl has expired - to be deleted 
+	  or whose 80% ttl has expired - to be queried on the network)
+	 @param aActiveCacheMgmtEnabled flag to indicate if Pro-active Cache Mgmt is to be enabled
+	 */
+	virtual CCacheEntry* NextStaleEntry(TBool aActiveCacheMgmtEnabled,TBool aIteratorReset)=0;
+	
+	/*Returns all the Authoritative Cache En tries for Announcement
+	@param aEntries Output param ,containing all authoritative entries
+	*/
+	virtual void AuthoritativeEntriesL(RPointerArray <CCacheEntry> & aEntries)=0;
+	
+	/*Returns the current number of entries in Cache*/
+	virtual TUint NumberOfEntries()=0;
+	
+	/*Dump all the entries in Cache- Debug Purposes*/
+	virtual void DumpCacheL()=0;
+	
+	/*Virtual destructor so that the delete gets called for all the
+	 Cache Implementation Interfaces*/ 	
+	virtual ~MDNSCacheMgr(){}
+		
+	};
+
+
+
+#endif /*MDNSCACHEMGR_H_*/