--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contentstorage/srvinc/cammcwatcher.h	Mon May 03 12:48:45 2010 +0300
@@ -0,0 +1,122 @@
+/*
+* 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:
+*
+*/
+
+#ifndef C_CAMMCWATCHER_H
+#define C_CAMMCWATCHER_H
+
+
+#include <e32base.h>
+#include <f32file.h>
+
+/**
+ *  Interface for observing MMC events.
+ *
+ *  @since S60 S60 v3.1
+ */
+class MMmcWatcherCallback
+    {
+
+public:
+    /**
+     * MmcChangeL is called when the MMC is removed or inserted.
+     */
+    virtual void MmcChangeL() = 0;
+
+    };
+
+/**
+ *  This active object waits for an indication that the media has changed.
+ *
+ *  @since S60 S60 v3.1
+ */
+NONSHARABLE_CLASS( CCaMmcWatcher ) : public CActive
+    {
+
+public:
+
+    /**
+    * Two-phased constructor.
+    * @param aObserver Pointer to notifier interface.
+    * @param aFs file server session.
+    */
+IMPORT_C static CCaMmcWatcher* NewL( RFs& aFs,
+            MMmcWatcherCallback* aObserver );
+
+    /**
+    * Two-phased constructor.
+    * @param aObserver Pointer to notifier interface.
+    * @param aFs file server session.
+    */
+IMPORT_C static CCaMmcWatcher* NewLC( RFs& aFs,
+            MMmcWatcherCallback* aObserver );
+
+    /**
+    * Destructor
+    */
+    ~CCaMmcWatcher();
+
+private:
+
+    /**
+    * C++ default constructor
+    * @param aObserver Pointer to notifier interface.
+    * @param aFs file server session.
+    */
+    CCaMmcWatcher( RFs& aFs, MMmcWatcherCallback* aObserver );
+
+    /**
+    * By default Symbian OS constructor is private.
+    */
+    void ConstructL();
+
+    /**
+    * Set notification request
+    */
+    void WaitForChangeL();
+
+    /**
+    * From CActive.
+    */
+    void DoCancel();
+
+    /**
+    * From CActive.
+    */
+    void RunL();
+
+    /**
+     * From CActive.
+     */
+    TInt RunError( TInt aError );
+
+private:
+
+    /**
+     * File server session.
+     * Not Own
+     */
+    RFs iFs;
+
+    /**
+     * MMC events observer
+     * Not own.
+     */
+    MMmcWatcherCallback* iObserver;
+    };
+
+
+#endif      // C_CAMMCWATCHER_H