diff -r 5b6f26637ad3 -r f4a778e096c2 presencecache/presencecacheutils/inc/presenceobjecthelpers.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/presencecache/presencecacheutils/inc/presenceobjecthelpers.h	Wed Sep 01 12:29:52 2010 +0100
@@ -0,0 +1,79 @@
+/*
+* Copyright (c) 2006 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:  Templated algorithms to simplify object handling
+*
+*/
+
+#ifndef PRESENCEOBJECTHELPERS_H
+#define PRESENCEOBJECTHELPERS_H
+
+#include <s32mem.h>
+
+class MPresenceBuddyInfo2;
+
+// const TInt KObjectBufGranurality = 100;
+
+
+class TPresenceArrayPacker
+    {
+public:
+    /**
+     * Pack array of buffers to buffer.
+     * @param aBufferArray Array of buffers to pack.
+     * @return Buffer containing buffers.
+     */
+    IMPORT_C static HBufC8* PackArrayL( const RPointerArray< MPresenceBuddyInfo2 >& aBufferArray );
+    
+    /**
+     * Unpack array of buffers to array.
+     * @param aBufferArray. Target array for new buffers. Ownhersip of items in array is transferred to caller.
+     * @param aPack Packet containing array of buffers.
+     */
+    IMPORT_C static void UnPackArrayL( RPointerArray< MPresenceBuddyInfo2 >& aBufferArray, const TDesC8& aPack  );
+    };
+
+class PresenceCacheBuddyUtils
+    {
+public:
+    /**
+     * Reset buddy info expiry time stamp
+     */
+    IMPORT_C static void ResetBuddyInfoTimeStamp(MPresenceBuddyInfo2& aBuddy);
+
+    /**
+     * Check is buddy info expired
+     */
+    IMPORT_C static TBool IsBuddyInfoExpired(const MPresenceBuddyInfo2& aBuddy);
+private:
+    // Hide constructor and destructor
+    PresenceCacheBuddyUtils();
+    ~PresenceCacheBuddyUtils();
+    };
+
+// CleanupStack helpers for item owning RPointerArrays
+template <class T>
+class CleanupResetAndDestroy
+    {
+public:
+    inline static void PushL(T& aRef)
+        { CleanupStack::PushL(TCleanupItem(&ResetAndDestroy,&aRef)); }
+private:
+    inline static void ResetAndDestroy(TAny *aPtr)
+        { static_cast<T*>(aPtr)->ResetAndDestroy(); }
+    };
+
+template <class T>
+inline void CleanupResetAndDestroyPushL(T& aRef)
+    { CleanupResetAndDestroy<T>::PushL(aRef); }
+#endif // PRESENCEOBJECTHELPERS_H