diff -r 000000000000 -r 09774dfdd46b presetserver/clientsrc/Pspresetnotifier.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/presetserver/clientsrc/Pspresetnotifier.cpp	Mon Apr 19 14:01:53 2010 +0300
@@ -0,0 +1,167 @@
+/*
+* Copyright (c) 2006-2006 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:  Implementation of the public preset notifier
+*
+*/
+
+
+#include <pspresetnotifier.h>
+#include <psserv.h>
+
+#include "psservnotifier.h"
+
+const TInt KPSDefaultNotifierPriority = CActive::EPriorityLow; // Priority of the non-preset notifiers.
+const TInt KPSPresetNotifierPriority = CActive::EPriorityStandard; // Priority of the preset notifiers.
+
+const TInt KPSFailedRequestDelay = 5000000; // The delay after which a failed notify request is reissued to the server.
+
+// ======== LOCAL FUNCTIONS ========
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CPSPresetNotifier* CPSPresetNotifier::NewL( RPSServ& aServ, MPSPresetObserver& aObserver )
+    {
+    CPSPresetNotifier* self = new ( ELeave ) CPSPresetNotifier( aServ, aObserver, KPSDefaultNotifierPriority );
+    CleanupStack::PushL( self );
+    self->ConstructL( KErrNotFound );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Non-exported two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CPSPresetNotifier* CPSPresetNotifier::NewL( RPSServ& aServ, MPSPresetObserver& aObserver, TInt aId )
+    {
+    CPSPresetNotifier* self = new ( ELeave ) CPSPresetNotifier( aServ, aObserver, KPSPresetNotifierPriority );
+    CleanupStack::PushL( self );
+    self->ConstructL( aId );
+    CleanupStack::Pop( self );
+    return self;
+    }     
+
+// ---------------------------------------------------------------------------
+// Constructor.
+// ---------------------------------------------------------------------------
+//
+CPSPresetNotifier::CPSPresetNotifier( RPSServ& aServ, MPSPresetObserver& aObserver, TInt aPriority )
+    : CActive( aPriority ), iServ( aServ ), iObserver( aObserver )
+    {
+    CActiveScheduler::Add( this );
+    }
+        
+// ---------------------------------------------------------------------------
+// Second-phase constructor.
+// ---------------------------------------------------------------------------
+//
+void CPSPresetNotifier::ConstructL( TInt aId )
+    {
+    iTimer = CPeriodic::NewL( CActive::EPriorityStandard );
+
+    iNotifier = new ( ELeave ) RPSServNotifier( iServ, aId );
+    iNotifier->Notify( iStatus );
+
+    SetActive();
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CPSPresetNotifier::~CPSPresetNotifier()
+    {
+    Cancel();
+
+    delete iNotifier;
+    delete iTimer;
+    }
+
+// ---------------------------------------------------------------------------
+// Cancels the pending notify.
+// ---------------------------------------------------------------------------
+//
+void CPSPresetNotifier::DoCancel()
+    {
+    if ( iNotifier )
+        {
+        iNotifier->CancelNotify();
+        }
+    
+    if ( iTimer )
+        {
+        iTimer->Cancel();
+        }
+    }
+    
+// ---------------------------------------------------------------------------
+// Invoked when a preset is changed.
+// ---------------------------------------------------------------------------
+//
+void CPSPresetNotifier::RunL()
+    {
+    User::LeaveIfError( iStatus.Int() );
+    iObserver.HandlePresetChangedL( iNotifier->Id(), iNotifier->DataHandler(), iNotifier->Reason() );
+
+    // Requesting the new notification must be done after the observer has been
+    // notified of the current one, as the request may complete synchronously on the 
+    // server side, causing it to overwrite the existing notify package and thus notifying
+    // the observer incorrectly.
+    
+    iNotifier->Notify( iStatus );
+    SetActive();
+    }
+
+// ---------------------------------------------------------------------------
+// Called when RunL leaves.
+// ---------------------------------------------------------------------------
+//
+TInt CPSPresetNotifier::RunError( TInt /*aError*/ )
+    {
+    // After a notification fails for any reason, whether it is because the server side
+    // code has caused a leave or the observer's implementation of preset handling
+    // call back fails, we will request a new notification with a set delay. This
+    // prevents the notifier from being in a state where it can no longer keep track
+    // of its state.
+
+    iTimer->Cancel();
+    iTimer->Start( KPSFailedRequestDelay, KPSFailedRequestDelay, TCallBack( StaticDelayedNotifyCallBack, this ) );
+    
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------------------------
+// Static notify call back that is used after a failed notification.
+// ---------------------------------------------------------------------------
+//
+TInt CPSPresetNotifier::StaticDelayedNotifyCallBack( TAny* aSelf )
+    {
+    CPSPresetNotifier* self = static_cast<CPSPresetNotifier*>( aSelf );
+    if ( self )
+        {
+        self->iTimer->Cancel();
+
+        self->iNotifier->Notify( self->iStatus );
+        self->SetActive();
+        }
+
+    return KErrNone;
+    }
+
+// ======== GLOBAL FUNCTIONS ========
+