diff -r 000000000000 -r ba25891c3a9e iaupdate/IAD/ui/inc/iaupdategloballockhandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/iaupdate/IAD/ui/inc/iaupdategloballockhandler.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,93 @@
+/*
+* Copyright (c) 2008 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:   This file contains the header file of the CIAUpdateGlobalLockHandler
+*                class 
+*
+*/
+
+
+#ifndef __IAUPDATE_GLOBALLOCKHANDLER_H__
+#define __IAUPDATE_GLOBALLOCKHANDLER_H__
+
+// INCLUDES
+#include <e32base.h>
+#include <eikenv.h>
+
+// FORWARD DECLARATIONS
+
+
+// CLASS DECLARATION
+/**
+*
+*/
+
+class CIAUpdateGlobalLockHandler : public CBase
+    {
+public:
+
+    /**
+    * Construct a CIAUpdateGlobalLockHandler using two phase construction,
+    * and return a pointer to the created object
+    * @return A pointer to the created instance of CIAUpdateGlobalLockHandler
+    */
+    static CIAUpdateGlobalLockHandler* NewL();
+    
+    /**
+    * Construct a CIAUpdateGlobalLockHandler using two phase construction,
+    * and return a pointer to the created object
+    * @return A pointer to the created instance of CIAUpdateGlobalLockHandler
+    */
+    static CIAUpdateGlobalLockHandler* NewLC();
+    
+    /**
+    * Destructor
+    */
+    ~CIAUpdateGlobalLockHandler();
+
+public: // new functions
+    
+    /**
+     * Check if another IAD instance is just performing operation
+     */ 
+    TBool InUseByAnotherInstanceL();
+    
+    /**
+     * Set in use flag to another instances on/off
+     *
+     * @param aInUse True value when operation (update,refresh) is ongoing
+     */ 
+    void SetToInUseForAnotherInstancesL( TBool aInUse );
+
+private:
+
+    /**
+    * C++ constructor 
+    */
+    CIAUpdateGlobalLockHandler();
+    
+    /**
+     * Perform the second phase construction of a CIAUpdateGlobalLockHandler object
+     */
+    void ConstructL();
+    
+    private: //data
+
+    CEikonEnv* iEikEnv; //not owned
+    
+    TBool iSetAsLocked;
+    
+    };
+
+
+#endif // __IAUPDATE_GLOBALLOCKHANDLER_H__