--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnp/upnpstack/upnpconnmanager/src/upnpconnmanagerengine.cpp	Tue Feb 02 01:12:20 2010 +0200
@@ -0,0 +1,358 @@
+/** @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:  Defines CUpnpConnManagerEngine
+*
+*/
+
+
+// INCLUDE FILES
+#include "upnpconnmanagerengine.h"
+#include "upnpsettings.h"
+#include "upnpconnmanagersession.h"
+
+#define KLogFile _L("UPnPConnManager.txt")
+#include "upnpcustomlog.h"
+
+const TTimeIntervalMicroSeconds32 KUnsuccesfulStartCacheTimeout( 2000000 );
+const TTimeIntervalMicroSeconds32 KWlanLostTimeout( 2000000 );
+const TInt KErrWlanLost = KErrNotReady;
+
+
+// ================= MEMBER FUNCTIONS =======================
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::NewLC
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CUpnpConnManagerEngine* CUpnpConnManagerEngine::NewL( TDblQueIter<CSession2>& aIterator )
+    {
+    LOG_FUNC_NAME;
+    CUpnpConnManagerEngine* self = new( ELeave ) CUpnpConnManagerEngine( aIterator );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::CUpnpConnManagerEngine
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CUpnpConnManagerEngine::CUpnpConnManagerEngine( TDblQueIter<CSession2>& aIterator )
+    : iActiveIap( KErrNotFound ), iSessionIter( aIterator )
+    {
+    }
+
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::ConstructL()
+    {
+    LOG_FUNC_NAME;
+
+    // create a socket server connection
+    User::LeaveIfError( iSocketServ.Connect() );
+
+    iIfWatcher = CUpnpConnInterfaceWatcher::NewL( *this, iSocketServ, iConnection );
+
+    iUnsuccesfulStartCacheTimer = CUpnpNotifyTimer::NewL( this );
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::CUpnpConnManagerEngine
+// Destructor.
+// -----------------------------------------------------------------------------
+//
+CUpnpConnManagerEngine::~CUpnpConnManagerEngine()
+    {
+    LOG_FUNC_NAME;
+
+    delete iUnsuccesfulStartCacheTimer;
+    
+    delete iIfWatcher;
+    CancelAllSubscription();
+
+    iConnection.Close();
+    iSocketServ.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::EnsureStart
+// After call of this method the caller is sure that
+// RConnection was started.
+// -----------------------------------------------------------------------------
+//
+TInt CUpnpConnManagerEngine::EnsureStart( TInt& aAccessPoint )
+    {
+    TInt startError;
+    if ( !iStartAttemptDone )
+        {
+        TRAP( startError, EnsureStartL() );
+        if( KErrNone != startError )
+            {
+            iConnection.Close();
+            }
+        
+        SetStartAttemptStatus( startError, KUnsuccesfulStartCacheTimeout );        
+        }
+    else
+        {
+        startError = iCachedStartError;
+        }
+    aAccessPoint = iActiveIap;
+    return startError;
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::EnsureStartL
+// RConnection starting logic.
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::EnsureStartL()
+    {
+    TUint32 activeIap;
+    _LIT( KIAPId, "IAP\\Id" );
+
+    SetupConnectionPreferencesL();
+
+    User::LeaveIfError( iConnection.Open( iSocketServ ) );
+    User::LeaveIfError( iConnection.Start( iCommDbConnPref ) );
+    
+    // because iCommDbConnPref is not updated by Start method
+    // we retrieve active iap here
+    // it is crucial for always ask case when predefined
+    // wlan is chosen from unavailable wlan list
+    User::LeaveIfError( iConnection.GetIntSetting( KIAPId, activeIap ) );
+
+    iIfWatcher->ListenAddressChangeL( activeIap );
+    iIfWatcher->SubscribeForConnectionServiceChangeNotifications();
+    
+    iActiveIap = activeIap;
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnectionManager::SetupConnectionPreferencesL
+// Gets Iap from central repository and sets iCommDbConnPref.
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::SetupConnectionPreferencesL()
+    {
+    iCommDbConnPref.SetIapId( CUpnpSettings::GetIapL() );
+    iCommDbConnPref.SetDialogPreference( ECommDbDialogPrefDoNotPrompt );
+    iCommDbConnPref.SetBearerSet( ECommDbBearerWLAN );
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnectionManager::IsStarted
+// Indicates whether RConnection was started.
+// -----------------------------------------------------------------------------
+//
+TBool CUpnpConnManagerEngine::IsStarted()
+    {
+    return iStartAttemptDone 
+           && ( KErrNone == iCachedStartError ) 
+           && ( iActiveIap > KErrNotFound );
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnectionManager::ActiveIap
+// Returns active iap
+// -----------------------------------------------------------------------------
+//
+TInt CUpnpConnManagerEngine::ActiveIap()
+    {
+    return iActiveIap;
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::LocalAddress
+// -----------------------------------------------------------------------------
+//  
+const TInetAddr& CUpnpConnManagerEngine::LocalAddress()
+    {
+    return iIfWatcher->LocalAddress();
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnectionManager::SetStartAttemptStatus
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::SetStartAttemptStatus( TInt aError,
+                                                    TTimeIntervalMicroSeconds32 aUSec )
+    {
+    iStartAttemptDone = ETrue;
+    iCachedStartError = aError;
+
+    if ( iCachedStartError )
+        {
+        // start timer to clean start attempt status after aUSec microseconds
+        iUnsuccesfulStartCacheTimer->Cancel();
+        iUnsuccesfulStartCacheTimer->Start( aUSec );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnectionManager::ClearStartAttemptStatus
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::ClearStartAttemptStatus()
+    {
+    iStartAttemptDone = EFalse;
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::TimerEventL
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::TimerEventL( CUpnpNotifyTimer* /*aTimer*/ )
+    {
+    ClearStartAttemptStatus();
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::WlanNetworkLost
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::WlanNetworkLost()
+    {
+    LOG_FUNC_NAME;
+    NotifyAllAboutWlanLost();
+    SetStartAttemptStatus( KErrWlanLost, KWlanLostTimeout );
+    }
+    
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::NotifyAllAboutWlanLostL
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::NotifyAllAboutWlanLost()
+    {
+    iSessionIter.SetToFirst();
+    CUpnpConnManagerSession* ses = 
+              reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );
+    while ( ses )
+        {
+        TRAP_IGNORE( ses->WLanLostOccuredL() );
+        ses = reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );    
+        }
+    }    
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::InterfaceAddressChange
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::InterfaceAddressChange( TInetAddr& aAddr )
+    {
+    LOG_FUNC_NAME;
+    if ( IsStarted() )
+        {
+        NotifyAllAboutAddressChange( aAddr );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::NotifyAllAboutAddressChangeL
+// -----------------------------------------------------------------------------
+//
+void CUpnpConnManagerEngine::NotifyAllAboutAddressChange( TInetAddr& aAddr )
+    {
+    iSessionIter.SetToFirst();
+    CUpnpConnManagerSession* ses = 
+              reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );
+    while ( ses )
+        {
+        TRAP_IGNORE( ses->AddressChangeOccuredL( aAddr ) );
+        ses = reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );    
+        }
+    }    
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::CancelAllSubscription
+// -----------------------------------------------------------------------------
+//    
+void CUpnpConnManagerEngine::CancelAllSubscription()
+    {
+    iSessionIter.SetToFirst();
+    CUpnpConnManagerSession* ses = 
+              reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );
+    while ( ses )
+        {
+        ses->CancelSubscription();        
+        ses = reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );    
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::CloseConnection
+// -----------------------------------------------------------------------------
+//    
+void CUpnpConnManagerEngine::CloseConnection()
+    {
+    iIfWatcher->CancelSubscriptionForConnectionServiceChangeNotifications();
+    iConnection.Close();
+    iActiveIap = KErrNotFound;
+    
+    ClearStartAttemptStatus();
+    NotifyAllAboutConnectionClosed();
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::CheckAndCloseConnection
+// -----------------------------------------------------------------------------
+//    
+void CUpnpConnManagerEngine::CheckAndCloseConnection(
+                                             CUpnpConnManagerSession* aSession )
+    {
+    if ( !IsStarted() )
+        {
+        return;
+        }
+    
+    iSessionIter.SetToFirst();
+    CUpnpConnManagerSession* ses = 
+              reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );
+    while ( ses )
+        {
+        if ( ses != aSession && ses->SessionUseConnection() )
+            {
+            return;
+            }
+        ses = reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );    
+        }
+
+    CloseConnection();
+    }
+
+// -----------------------------------------------------------------------------
+// CUpnpConnManagerEngine::NotifyAllAboutConnectionClosed
+// -----------------------------------------------------------------------------
+//    
+void CUpnpConnManagerEngine::NotifyAllAboutConnectionClosed()
+    {
+    iSessionIter.SetToFirst();
+    CUpnpConnManagerSession* ses = 
+              reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );
+    while ( ses )
+        {
+        TRAP_IGNORE( ses->ConnectionClosedL() );
+        ses = reinterpret_cast<CUpnpConnManagerSession*>( iSessionIter++ );    
+        }
+    }
+
+// End of File