--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natfw/natfwicecandidatehandler/inc/cicecallbackexecuter.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,156 @@
+/*
+* Copyright (c) 2007 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:    Executes client specified callbacks in timely manner.
+*
+*/
+
+
+
+
+#ifndef C_ICECALLBACKEXECUTER_H
+#define C_ICECALLBACKEXECUTER_H
+
+#include <e32base.h>
+#include "natfwinternaldefs.h"    //UNIT_TEST
+
+/**
+ *  Encapsulates callback function.
+ *
+ *  @lib icecandidatehandler.lib
+ *  @since S60 v3.2
+ */
+class TIceCallBack
+    {
+
+public:
+    
+    TIceCallBack( void ( *aFunction )( CBase& aObjectRef, TInt aData ),
+        CBase& aObjectRef, TInt aData, 
+        const TTimeIntervalMicroSeconds32& aDelay )
+        :
+        iFunction( aFunction ),
+        iObjectRef( aObjectRef ),
+        iData( aData ),
+        iDelay( aDelay ) { };
+    
+    /**
+     * Calls encapsulated callback function with client specified parameters.
+     *
+     * @since   S60 v3.2
+     */
+    void CallBack() const
+        { 
+        if ( iFunction )
+            {
+            (*iFunction)( iObjectRef, iData );
+            }
+        }
+    
+    /**
+     * Returns a wait time after which callback should be called.
+     *
+     * @since   S60 v3.2
+     */
+    TTimeIntervalMicroSeconds32 Delay() const { return iDelay; }
+    
+private:
+    
+    TIceCallBack();
+    
+public:
+    
+    /**
+     * A pointer to the callback function.
+     */
+    void ( *iFunction )( CBase& aObjectRef, TInt aData );
+    
+    /**
+     * A pointer that is passed to the callback function when
+     * the function is called.
+     */
+    CBase& iObjectRef;
+    
+    /**
+     * A data that is passed to the callback function when
+     * the function is called.
+     */
+    TInt iData;
+    
+    /**
+     * A delay after which callback is issued.
+     */    
+    TTimeIntervalMicroSeconds32 iDelay;
+    };
+
+
+/**
+ *  Executes client specified callbacks in timely manner.
+ *
+ *  @lib icecandidatehandler.lib
+ *  @since S60 v3.2
+ */
+class CIceCallBackExecuter : public CTimer
+    {
+    
+    UNIT_TEST( UT_CIceCallBackExecuter )
+    
+public:
+
+    /**
+     * Two-phased constructor.
+     * @param aPriority         Active object priority
+     */
+    static CIceCallBackExecuter* NewL( TInt aPriority );
+    
+    /**
+     * Two-phased constructor.
+     * @param aPriority         Active object priority
+     */
+    static CIceCallBackExecuter* NewLC( TInt aPriority );
+    
+    /**
+     * Destructor.
+     */
+    virtual ~CIceCallBackExecuter();
+
+    /**
+     * Adds specified callback to the queue. Starts executing callbacks
+     * if queue was empty.
+     *
+     * @since   S60 v3.2
+     * @param   aCallBack       The callback to add to the queue
+     */
+    void AddCallBackL( const TIceCallBack& aCallBack );
+
+protected:
+    
+    void RunL();
+    
+    void DoCancel();
+    
+private:
+
+    CIceCallBackExecuter( TInt aPriority );
+    
+    void ConstructL();
+
+private: // data
+
+    /**
+     * Callback queue.
+     */
+    RArray<TIceCallBack> iCallBacks;
+    };
+
+#endif // C_ICECALLBACKEXECUTER_H