--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnp/upnpstack/upnpconnmanager/inc/upnpconnmanagerengine.h	Tue Feb 02 01:12:20 2010 +0200
@@ -0,0 +1,220 @@
+/** @file
+* Copyright (c) 2005-2006 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:  CUpnpConnManagerEngine
+*
+*/
+
+#ifndef C_CUPNPCONNMANAGERENGINE_H
+#define C_CUPNPCONNMANAGERENGINE_H
+
+// INCLUDES
+
+#include <e32base.h>
+#include <es_sock.h>
+#include <commdbconnpref.h>
+
+#include "upnpnotifytimer.h"
+#include "upnpconninterfacewatcher.h"
+
+// FORWARD DECLARATIONS
+class CUpnpConnManagerSession;
+
+/**
+ * Class used to wrap Symbian RConnection class.
+ * Fixes performance problem when RConnection::Start() used symultanously by
+ * two or more processes/threads.
+ * @see CUpnpConnectionManagerProxy for more information.
+ * @since S60 5.0
+ */
+class CUpnpConnManagerEngine : public CBase, public MUpnpNotifyTimerObserver,
+                               public MUpnpConnInterfaceWatcherObserver
+    {
+public:
+
+    /**
+     * A two-phased constructor function
+     * @param aIterator sessions iterator
+     * @result A new instance of CUpnpConnManagerEngine
+     */
+    static CUpnpConnManagerEngine* NewL( TDblQueIter<CSession2>& aIterator );
+
+    /**
+     * Destructor function
+     */
+    virtual ~CUpnpConnManagerEngine();
+
+public:
+
+    /**
+     * After call of this method the caller is sure that
+     * RConnection was started.
+     * @param aAccessPoint id of current accessPoint on which RConnection was started
+     * @return starting error
+     */
+    TInt EnsureStart( TInt& aAccessPoint );
+
+    /**
+     * @since Series60 5.0 HN
+     * @return indicates whether RConnection is started.
+     */
+    TBool IsStarted();
+
+    /**
+     * @since Series60 5.0 HN
+     * @return active iap
+     */
+    TInt ActiveIap();
+    
+    /**
+     * Returns inet address
+     * @since Series60 5.0 HN
+     * @return local IP address
+     */
+    const TInetAddr& LocalAddress();
+    
+    /**
+     * Checks if left any session which called EnsureStart(), 
+     * when not then RConnection is closed
+     * @since Series60 5.0 HN
+     * @param Session wich call this function
+     * @return None
+     */
+    void CheckAndCloseConnection( CUpnpConnManagerSession* aSession );
+    
+private:
+    /**
+     * Default constructor.
+     */
+    CUpnpConnManagerEngine( TDblQueIter<CSession2>& aIterator );
+
+    /**
+     * 2nd phase constructor.
+     */
+    void ConstructL();
+
+    /**
+     * Opens and connects RConnection, subscribes for IP event notyfications 
+     * (for address change) and Connection closed notyfication. In case of error
+     * Leaves.
+     * @since Series60 5.0 HN
+     * @return None
+     */
+    void EnsureStartL();
+
+    /**
+     * Set state that one attempt to start the RConnection
+     * @param aError error code of starting
+     * @param aUSec microsecond for timeout
+     */
+    void SetStartAttemptStatus( TInt aError, TTimeIntervalMicroSeconds32 aUSec );
+
+    /**
+     * Reset state. One will be able to attempt to start RConnection again
+     * @since Series60 5.0 HN
+     * @return None
+     */
+    void ClearStartAttemptStatus();
+    
+    /**
+     * Cancel all subscription to network event
+     * @since Series60 5.0 HN
+     * @return None
+     */
+    void CancelAllSubscription();
+    
+    /**
+     * Notify all clients about wlan lost event
+     * @since Series60 5.0 HN
+     * @return None
+     */                                 
+    void NotifyAllAboutWlanLost();
+            
+    /**
+     * Notify all clients about address change event
+     * @since Series60 5.0 HN
+     * @return None
+     */                                 
+    void NotifyAllAboutAddressChange( TInetAddr& aAddr );
+
+    /**
+     * Notify all clients about connection closed event
+     * @since Series60 5.0 HN
+     * @return None
+     */                                 
+    void NotifyAllAboutConnectionClosed();
+
+    /**
+     * Closes RConnection
+     * @since Series60 5.0 HN
+     * @return None
+     */                                 
+    void CloseConnection();
+
+    /**
+     * Gets Iap from central repository and sets iCommDbConnPref.
+     * @since Series60 5.0 HN
+     * @return None
+     */                                 
+    void SetupConnectionPreferencesL();
+            
+private: // from MUpnpConnInterfaceWatcherObserver    
+        
+    /**
+     * Marks connection interface as not vaild
+     */
+    void WlanNetworkLost();
+
+    /**
+     * Invoked when address changes
+     * @param new address
+     */
+    void InterfaceAddressChange( TInetAddr& aAddr );
+        
+private: // from MUpnpNotifyTimerObserver
+
+    void TimerEventL( CUpnpNotifyTimer* aTimer );
+
+private:
+    // Connection preferences
+    TCommDbConnPref iCommDbConnPref;
+
+    // Connection
+    RConnection iConnection;
+
+    // SocketServer
+    RSocketServ iSocketServ;
+
+    // have we tried to start the interface
+    TInt iStartAttemptDone;
+
+    // error code of starting
+    TInt iCachedStartError;
+
+    // hysteresis timer preventing double asking 
+    // when first attempt fails e.g. when user cancels starting of IAP
+    CUpnpNotifyTimer* iUnsuccesfulStartCacheTimer;
+    
+    // it is needed only for "always ask" case
+    TInt iActiveIap;
+
+    // connection interface watcher
+    CUpnpConnInterfaceWatcher* iIfWatcher;
+    
+    // session iterator
+    TDblQueIter<CSession2>& iSessionIter;
+    
+    };
+
+
+#endif // C_CUPNPCONNMANAGERENGINE_H