--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/serviceproviders/sapi_logging/loggingservice/inc/loggingasyncservice.h	Fri Jul 03 15:51:24 2009 +0100
@@ -0,0 +1,237 @@
+/*
+* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:  Includes logging asynchronous core class methods.
+*
+*/
+
+#ifndef LOGGINGASYNCSERVICE_H
+#define LOGGINGASYNCSERVICE_H
+
+#include <e32base.h>
+#include <logcli.h>
+#include <logview.h>
+#include <f32file.h>
+#include <logwrap.h>
+
+enum
+    {
+    EAddEvent ,
+    EAddEventType,
+    EDeleteEvent ,
+    EReadEvents ,
+    ESleep ,
+    EGetRecent ,
+    ENotification ,
+    EGetEvent,
+    EErrorEvent,
+    };
+
+/**
+* Forward Declaration
+*/
+
+class MLoggingCallback ;
+class CLogsEvent    ;
+class CLogsFilter   ;
+class CLogIter      ;
+
+/**
+* Core class which deals with all the async methods
+*/
+
+class CLogAsyncService : public CActive
+    {
+    public:
+
+        /**
+        * NewL: Two phased construction
+        */
+
+        IMPORT_C static CLogAsyncService*  NewL( MLoggingCallback* aCallback = NULL ) ;
+
+        /**
+        * NewLC: Creates an instance of CLogSyncServiceClass
+        * Two Phased constructor
+        * returns newly allocated object.
+        */
+
+        static CLogAsyncService*  NewLC( MLoggingCallback* aCallback ) ;
+
+        /**
+        * Async AddEvent function. adds an Event asynchronously
+        * do event database
+        * @param aEvent, details of the event to be added to the
+        * event database
+        */
+
+        IMPORT_C void AddL( TUint aTransId ,CLogEvent* aEvent ) ;
+
+       /**
+        * Deletes a event from the event database
+        * @param aLogId Event id of the event in the database
+        * @param aFilter, search criteria for this event in event database
+        */
+
+        IMPORT_C void Delete( TUint aTransId , TLogId aLogId ) ;
+
+        /**
+        * Gets the Events list asynchronously
+        * @param aFilter: Query Criteria
+        * @param aCallback: callback address
+        */
+
+        IMPORT_C void GetListL( TUint aTransId , CLogFilter *aFilter ) ;
+
+        /**
+        * Read recent Events from the database
+        *
+        * @param Transaction id of the async event
+        * @param RecentList
+        * @param Filter for events to appear in the view.
+        */
+
+        TBool ReadRecentEventsL( TUint aTransId , 
+                                 TLogRecentList aRecentList ,
+                                 const CLogFilter *aFilter = NULL ) ;
+
+        /**
+        * Notify Update: Notifies the updates happening to
+        * logdatabase.
+        *
+        * @param aDelay, minium duration for reciving the updates
+        */
+
+        IMPORT_C void NotifyUpdates( TUint aTransId ,TTimeIntervalMicroSeconds32 aDelay ) ;
+
+        /**
+        * Gets the details of the event, as specified by the input
+        * paramater
+        *
+        * @param, Transactoin id of the  asynchronous event
+        * @param, details of the event to be fetched from the database
+        */
+
+        IMPORT_C void GetEventL( TUint aTransId , CLogEvent* aEvent ) ;
+
+        /**
+        * SetInterval function
+        */
+
+        inline void SetInterval( TTimeIntervalMicroSeconds32 aInterval )
+            {
+            iInterval = aInterval ;
+            }
+
+        /**
+        * Default Desturctor
+        */
+
+        ~CLogAsyncService() ;
+
+
+    protected :
+
+        /**
+        * Protected constructor
+        */
+
+        CLogAsyncService() ;
+
+        /**
+        * ConstructL Method to construct the class members
+        */
+
+        void ConstructL(MLoggingCallback* aCallback) ;
+
+        /**
+        * DoInitalise Method to intalise the class members
+        */
+
+        void DoInitialiseL() ;
+
+        /**
+        * From CActive
+        */
+
+        void DoCancel() ;
+
+        /**
+        * From CActive
+        */
+
+        void RunL() ;
+
+        /**
+        * RunCmL method
+        */
+
+        void RunCmdL() ;
+
+
+    private :
+
+        /**
+        * Members of AsyncService Class
+        */
+
+        CLogClient*        iLogClient ;
+        MLoggingCallback*  iCallback ;
+        TUint               iTransId ;
+        CLogsEvent         *iUpdatedEvent ;
+        CLogIter*          iIter ;
+        TInt               iTask ;
+        RFs                iFs ;
+        TTimeIntervalMicroSeconds32 iInterval ;
+
+    };
+
+/**
+* Notify Callback class, used to get notifications for async events
+*/
+
+class MLoggingCallback
+    {
+
+    public :
+
+        /**
+        * HandleNotifyL , generic method to get updates on the async
+        * methods
+        * @param aTransId , Transaction id
+        * @param aStatus
+        * @param iter , Logging iterator
+        */
+        virtual void HandleNotifyL(TUint aTransid ,TUint aStatus , CLogIter *iter ) = 0 ;
+
+        /**
+        * CancelNotifyL , generic method to get updates on the async
+        * methods
+        *
+        * @param aTransId , Transaction id
+        */
+
+        virtual void CancelNotifyL(TUint aTransid) = 0 ;
+
+        /**
+        * Default Desturctor
+        */
+
+        virtual ~MLoggingCallback()
+        {
+        ;
+        }
+
+    } ;
+
+#endif
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