diff -r 000000000000 -r 6a9f87576119 filemanager/Engine/inc/MFileManagerThreadFunction.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/filemanager/Engine/inc/MFileManagerThreadFunction.h	Mon Jan 18 20:09:41 2010 +0200
@@ -0,0 +1,89 @@
+/*
+* Copyright (c) 2006-2007 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:  Background thread abstraction
+*
+*/
+
+
+#ifndef MFILEMANAGERTHREADFUNCTION_H
+#define MFILEMANAGERTHREADFUNCTION_H
+
+
+// INCLUDES
+#include <e32base.h>
+
+
+// CLASS DECLARATION
+/**
+*  Defines an interface for background thread abstraction.
+*
+*  @since 3.1
+*/
+class MFileManagerThreadFunction
+    {
+    public: // Background thread space executed callbacks
+        
+        /**
+        * Inits background thread owned handles and data.
+        * Executed always on background thread start.
+        * @since 3.1
+        */
+        virtual void InitThreadL() {}
+
+        /**
+        * Releases background thread owned handles and data.
+        * Executed always on background thread exit.
+        * @since 3.1
+        */
+        virtual void ReleaseThread() {}
+
+        /**
+        * Runs background thread.
+        * @since 3.1
+        */
+        virtual void ThreadStepL() = 0;
+
+        /**
+        * Checks is background thread done.
+        * @since 3.1
+        * @return ETrue if thread is done and should be finished,
+        *         EFalse if ThreadStepL should be executed.
+        */
+        virtual TBool IsThreadDone() = 0;
+
+
+    public: // Client thread space executed callbacks
+        enum TNotifyType // Notify type flags
+            {
+            ENotifyNone = 0x0,
+            ENotifyError = 0x1,
+            ENotifyFinished = 0x2, // Notifies thread's death
+            ENotifyStepFinished = 0x4 // Notifies step completion
+            };
+        /**
+        * Notifies client about background thread events.
+        * Background thread is stopped during notification and 
+        * it is safe to modify shared data to handle errors etc.
+        * @since 3.1
+        * @param aType notification type
+        * @param aValue notification value
+        */
+        virtual void NotifyThreadClientL(
+            TNotifyType aType, TInt aValue ) = 0;
+
+    };
+
+#endif // MFILEMANAGERTHREADFUNCTION_H
+
+// End of File