--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PECengine/StorageManager2/ClientSrc/CPEngObserverContainer.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,219 @@
+/*
+* Copyright (c) 2002 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:  Storage Id change observer container
+*
+*/
+
+
+
+#ifndef __CPENGOBSERVERCONTAINER_H__
+#define __CPENGOBSERVERCONTAINER_H__
+
+//  INCLUDES
+#include <e32base.h>
+#include <badesca.h>
+
+
+// FORWARD DECLARATIONS
+class MPEngSIDChangeObserver;
+class MPEngSIdContainer;
+
+// CLASS DECLARATION
+
+/**
+ *  Observer container
+ *
+ *  Container of one Sids observer.
+ *  It holds reference to the
+ *
+ *  @lib PEngStorMan2.dll
+ *  @since 3.0
+ */
+NONSHARABLE_CLASS( CPEngObserverContainer ) :
+        public CBase
+    {
+public:  // Constructors and destructor
+
+    /**
+     * Two-phased constructor.
+     */
+    static CPEngObserverContainer* NewLC(
+        MPEngSIDChangeObserver& aChangeObserver,
+        TInt aPriority );
+
+    /**
+     * Destructor.
+     */
+    virtual ~CPEngObserverContainer();
+
+public: // New functions
+
+    /**
+     *  Mark changed Storage Id
+     *
+     *  @since 3.0
+     *  @param aChangedSId changed Storahe Id
+     */
+    void SIdHasChangedL( const TDesC& aChangedSId );
+
+    /**
+     *  Remove SId container
+     *
+     *  @since 3.0
+     *  @param aSIdContainer Storage Id container to remove
+     */
+    void RemoveSIdContainer( MPEngSIdContainer* aSIdContainer );
+
+    /**
+     *  Notify changes of the storage IDs to observer
+     *
+     *  Leave error is trapped inside and informed to the observer
+     *  in the notify error method
+     *
+     *  @since 3.0
+     *	@param aPriority priority of the notification
+     *		if priority does not match to the own one, notification
+     *		is ignored
+     */
+    void NotifySIdsChanges( TInt aPriority );
+
+    /**
+     *  Notify SId listen error
+     *
+     *  @since 3.0
+     *  @param aError error code
+     */
+    void NotifySIdListenError( TInt aError );
+
+    /**
+     *	Add SIDs containers
+     *
+     *	@since 3.0
+     *	@param aSIdContainers new storage Id containers
+     *	@param aOldSIdContainers array used for rollback in case
+     *						error will occur while appending
+     *	@param aKeepOldIds if ETrue, then engaged SIDs in
+     *									the existing listener are kept
+     *	@return KErrNone if operation went fine
+     *						or system wide error code
+     */
+    TInt UpdateSIdsContainers(
+        const RPointerArray<MPEngSIdContainer>& aSIdContainers,
+        RPointerArray<MPEngSIdContainer>& aOldSIdContainers,
+        TBool aKeepOldIds );
+
+    /**
+     *	Add new SIds containers
+     *
+     *	@since 3.0
+     *	@param aSIdContaners new storage Id containers to be added
+     *	@param aKeepOldIds if ETrue, then engaged SIDs in
+     *									the existing listener are kept
+     *	@return KErrNone if operation went fine
+     *						or system wide error code
+     */
+    TInt UpdateSIdsContainers(
+        const RPointerArray<MPEngSIdContainer>& aSIdContaners,
+        TBool aKeepOldIds );
+
+
+    /**
+     *	Remove engaged Storage Ids from existing Storage IDs listener
+     *
+     *	@since 3.0
+     *	@param aSIDsToRemove Storage Ids to be removed
+     */
+    void RemoveSIdsFromSIdsObserver( const MDesCArray& aSIdsToRemove );
+
+
+    /**
+     *	Remove all engaged Storage Ids from existing listener
+     *
+     *	@since 3.0
+     */
+    void RestartObserver();
+
+    /**
+     *  Count of Engaged SIDs
+     *
+     *  @since 3.0
+       *  @return number of SIds observer is still listening
+     */
+    TInt EngagedSIdsCount();
+
+    /**
+     *  Observer pointer
+     *
+     *  @since 3.0
+       *  @return Observer pointer
+     */
+    const MPEngSIDChangeObserver* Observer() const;
+
+    /**
+     * Set suspend mode of the Observer
+     *
+     * @since 3.0
+     * @param aSuspendMode suspend mode
+     */
+    void SetSuspendMode( TBool aSuspendMode );
+
+private:  // New functions
+
+    /**
+     *	Reset Engaged SIds array,
+     *
+     *  @since 3.0
+     */
+    void ResetEngagedIdsArray();
+
+private:
+
+    /**
+     * C++ default constructor.
+     */
+    CPEngObserverContainer( MPEngSIDChangeObserver& aChangeObserver,
+                            TInt aPriority );
+
+    /**
+     * By default Symbian 2nd phase constructor is private.
+     */
+    void ConstructL();
+
+
+private:    // Data
+    /// REF: Storage ID change observer
+    MPEngSIDChangeObserver&				iObserver;
+
+    /// REF: SID containers observer is interested in
+    RPointerArray<MPEngSIdContainer>	iEngagedSIds;
+
+    /// Priority of the observer
+    TInt								iObserverPriority;
+
+    /// Flag is observer is suspended
+    TBool								iSuspended;
+
+    /// OWN: Buffer of changed SIDs
+    CPtrCArray							iChangedSIds;
+
+    /// Changes notification is in progress
+    TBool								iProcessing;
+
+    /// REF: Flag if object is alive
+    TBool*								iAliveFlag;
+    };
+
+#endif      // __CPENGOBSERVERCONTAINER_H__
+
+// End of File