--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnp/upnpstack/serviceframework/inc/upnpeventqueuemanagerbase.h	Tue Feb 02 01:12:20 2010 +0200
@@ -0,0 +1,182 @@
+/** @file
+* Copyright (c) 2008-2008 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:  Base class for event queue manager
+*
+*/
+
+
+#ifndef C_CUPNPEVENTQUEUEMANAGERBASE_H
+#define C_CUPNPEVENTQUEUEMANAGERBASE_H
+
+// INCLUDES
+#include <e32std.h>
+#include <e32base.h>
+
+#include "upnphttptransaction.h"
+#include "upnpserviceimplementation.h"
+#include "upnpeventcontroller.h"
+#include "upnpsubscriberlibrary.h"
+
+
+const TInt KFirstSubscriberInQueue(0);
+
+
+// CLASS DECLARATION
+/**
+ *  UpnpNonModeratedEventQueueManager
+ * 
+ */
+NONSHARABLE_CLASS( CUpnpEventQueueManagerBase ): public CBase, public MTransactionObserver
+    {
+public:
+    // Constructors and destructor
+
+    /**
+    * Destructor.
+    */
+    ~CUpnpEventQueueManagerBase();
+
+    /**
+    * Two-phased constructor
+    * @param aServiceImpl
+    * @param aEventController 
+    * $param aSubscriberLibrary 
+    */
+    static CUpnpEventQueueManagerBase * NewL( CUpnpServiceImplementation& aServiceImpl,
+                                              CUpnpEventController& aEventController,
+                                              CUpnpSubscriberLibrary* aSubscriberLibrary );
+
+    /**
+    * Two-phased constructor.
+    * @param aServiceImpl
+    * @param aEventController 
+    * $param aSubscriberLibrary 
+    */
+    static CUpnpEventQueueManagerBase * NewLC( CUpnpServiceImplementation& aServiceImpl,
+                                               CUpnpEventController& aEventController,
+                                               CUpnpSubscriberLibrary* aSubscriberLibrary );
+    
+public:
+    /*
+    * Trigers event sending,
+    * has to be implemented in delivered class
+    */
+    virtual void SendEvent() = 0;
+    
+    void UpdateQueue( TInt aPos );
+    
+    
+/** from MTransactionObserver*/
+public:  
+ 
+    void TransactionCompletedL(  CUpnpHttpTransaction* aCompletedTranscation  );
+    
+    
+protected:    
+
+    /*
+    * Finishes processing of the event sending queue
+    */
+    void SendingCompleted();
+    
+    /*
+    * Sends the event to the next subscriber
+    */
+    void SendToNextL();
+    
+    /*
+    * Prepares event message and sends it to given subscriber
+    * @param aSubscriberNo subscriber's position on SubscribersLibrary list
+    */
+    void PrepareTransactionAndStartSendingL( TInt aSubscriberNo );
+
+    /*
+    * Removes subscriber form the SubscriberLibrary,
+    * recognize it by SID releated with event message
+    * @param aCompletedTransaction unsuccesfully completed transaction
+    */
+    void RemoveInvalidSubscriber( CUpnpHttpTransaction* aCompletedTransacation );
+                                  
+    /*
+    * Creates xml message with all evented variables
+    * @aparam aVariableList list with evented variables
+    */
+    HBufC8* CreateEventL( const RPointerArray<CUpnpStateVariable>& aVariableList );
+       
+    /*
+    * Adds single variable to message body
+    * @param aBufer message is appended to given buffer
+    * @param aVariable variable which will be added to buffer
+    */
+    void AddVariableToEventBody( TDes8& aBuffer , CUpnpStateVariable * aVariable );
+    
+    /*
+    * Clears evented variable list
+    */
+    void ClearVariables();
+    
+    /*
+    * Creates event specyfic message,
+    * has to be implemented in delivered class
+    */
+    virtual TInt FillEventBodyL ( TDes8& aEvent,     
+                          const RPointerArray<CUpnpStateVariable>& aVariableList ) = 0;
+    
+    /*
+    * Encapsulates event message into http transaction
+    * has to be implemented in delivered class
+    */                     
+    virtual CUpnpHttpTransaction* CreateTransactionL( CUpnpHttpMessage* aMessage ) = 0;                         
+
+protected:
+
+    /**
+    * Constructor for performing 1st stage construction
+    * @param aServiceImpl
+    * @param aEventController 
+    * $param aSubscriberLibrary 
+    */
+    CUpnpEventQueueManagerBase ( CUpnpServiceImplementation& iServiceImpl,
+                                 CUpnpEventController& iEventController,
+                                 CUpnpSubscriberLibrary* aSubscriberLibrary );
+    
+    /**
+    * Constructor for performing 2st stage construction
+    */
+    void BaseConstructL();
+
+protected:
+    
+    /*Points the currently proccesed subscriber */
+    TInt iCurrentSubscriberIndex;               //owned
+    
+    /*Current event message*/
+    HBufC8* iBody;                              // owned
+    
+    /*Status flag */
+    TBool iIsSending;
+    
+    /*Status flag*/
+    TBool iNewValuesWaitingToBeSend;            //owned
+
+    
+    CUpnpServiceImplementation& iServiceImpl;   //not owned
+    
+    CUpnpEventController& iEventController;     //not owned
+    
+    CUpnpSubscriberLibrary* iSubscriberLibrary; //not owned
+    };
+
+#endif // C_CUPNPEVENTQUEUEMANAGERBASE_H
+//end of file
\ No newline at end of file