--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dosservices/dosserver/src/dosevent.cpp	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,195 @@
+/*
+* 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: 
+*    Implementation for the CDosEvent class
+*
+*/
+
+
+#include <e32base.h>
+#include "dosevent.h"
+#include "doswaitingevent.h"
+#include "dos_debug.h"
+
+#define SECOND_GREATER_THAN_FIRST -1
+#define FIRST_GREATER_THAN_SECOND 1 
+
+//
+// ---------------------------------------------------------
+// CDosEvent::NewL
+// ---------------------------------------------------------
+//  
+
+CDosEvent* CDosEvent::NewL(TUint aEvent)
+{
+	CDosEvent* result = new (ELeave) CDosEvent;
+	CleanupStack::PushL(result);
+	result->ConstructL(aEvent);
+	CleanupStack::Pop();
+
+	return result;
+}
+
+//
+// ---------------------------------------------------------
+// CDosEvent::ConstructL
+// ---------------------------------------------------------
+//  
+
+void CDosEvent::ConstructL(TUint aEvent)
+{
+	iEventName = aEvent;
+}
+
+//
+// ---------------------------------------------------------
+// CDosEvent Destructor
+// ---------------------------------------------------------
+//  
+
+CDosEvent::~CDosEvent()
+{
+	//Destroys the list of Listeners
+	if(!iListenerList.IsEmpty())
+	{
+		iListenerList.Reset();
+	}
+}
+
+//
+// ---------------------------------------------------------
+// CDosEvent::Compare
+// ---------------------------------------------------------
+//  
+
+TInt CDosEvent::Compare(const CDosEvent& aFirst,const CDosEvent& aSecond)
+{
+	if(aFirst.iEventName < aSecond.iEventName)
+	{
+		return SECOND_GREATER_THAN_FIRST;
+	}
+	else if (aFirst.iEventName > aSecond.iEventName)
+	{
+		return FIRST_GREATER_THAN_SECOND;
+	}
+	return 0;
+}
+
+//
+// ---------------------------------------------------------
+// CDosEvent::AddListener
+// ---------------------------------------------------------
+//  
+
+void CDosEvent::AddListener(CDosEventRcvService* aListener)
+{
+	// The same listener can't be registered twice for the same event
+	if(!ListenerRegistered(aListener)) 
+	{
+		iListenerCount++;
+		iListenerList.AddFirst(*aListener);
+	}
+}
+
+//
+// ---------------------------------------------------------
+// CDosEvent::ListenerRegistered
+// ---------------------------------------------------------
+//  
+
+TBool CDosEvent::ListenerRegistered(CDosEventRcvService* aListener)
+{
+	CDosEventRcvService* item;
+
+	iListenerIter.SetToFirst();
+	while((item = iListenerIter++) != NULL)
+	{
+		if(item==aListener)
+		{
+			return ETrue;
+		}
+	}
+	return EFalse;
+}
+
+//
+// ---------------------------------------------------------
+// CDosEvent::RemoveListener
+// ---------------------------------------------------------
+//  
+
+void CDosEvent::RemoveListener(CDosEventRcvService* aListener)
+{
+	iListenerCount--;
+	iListenerList.Remove(*aListener);
+}
+
+//
+// ---------------------------------------------------------
+// CDosEvent::InformListeners
+// ---------------------------------------------------------
+//  
+
+void CDosEvent::InformListeners(CDosWaitingEvent* aEvent)
+{
+    COM_TRACE_( "[DOSSERVER] CDosEvent::InformListeners()" );
+
+	CDosEventRcvService* item;
+	TInt err(KErrNone);
+	
+	//Inform all the listeners in the list about the event
+	iListenerIter.SetToFirst();
+	while((item = iListenerIter++) != NULL)
+	{
+        // create a new instance of CDosWaitingEvent & copy the parameters
+        // we have to create another instance because the very same 
+        // object cannot reside on more than one queue.
+        CDosWaitingEvent* copyEvent = new CDosWaitingEvent;
+        if( copyEvent )
+            {
+            if( aEvent->HasParameter() )
+                {
+                TRAP( err, copyEvent->SetParameterL( (TAny*)aEvent->Parameter().Ptr(),
+                                                     aEvent->Parameter().Length() ) );
+                }
+            if( KErrNone == err )
+                {
+	            item->InformListener(copyEvent);
+        
+                // if it hasn't queued, delete it
+                if( !copyEvent->IsQueued() )
+                    {
+                    delete copyEvent;
+                    copyEvent = NULL;
+                    }
+                }
+            else
+                {
+                //SetParameterL() leaves
+                COM_TRACE_( "[DOSSERVER] CDosEvent::InformListeners - no memory for parameters - no events sent" );
+                delete copyEvent;
+                copyEvent = NULL;
+                err = KErrNone;
+                }
+            }
+        else
+            {
+            //In no memory case no events are sent
+            COM_TRACE_( "[DOSSERVER] CDosEvent::InformListeners - no memory for event - no events sent" );
+            }   
+	}
+	
+	COM_TRACE_( "[DOSSERVER] CDosEvent::InformListeners - return void" );
+	
+}