--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/piprofiler/plugins/GeneralsPlugin/inc/MemoryEventHandler.h	Thu May 27 14:26:55 2010 +0300
@@ -0,0 +1,91 @@
+/*
+* Copyright (c) 2009 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:  
+*
+*/
+#include "MemSamplerImpl.h"
+
+#ifndef __PI_MEMORY_EVENT_HANDLER__
+#define __PI_MEMORY_EVENT_HANDLER__
+
+#include <piprofiler/ProfilerGenericClassesKrn.h>
+
+// CONSTANTS
+const TInt KEventBufferSize = 257;
+
+class DProfilerSampleBuffer;
+
+class DMemoryEventHandler : public DKernelEventHandler
+    {
+public:
+    // constructor
+    DMemoryEventHandler(DProfilerSampleBuffer*  aSampleBuffer);
+    TInt Create();
+    ~DMemoryEventHandler();
+    TInt Start();
+    TInt Stop();
+    TBool Tracking() {return iTracking;}
+       
+    TBool SampleNeeded();
+    
+private:
+    static TUint EventHandler(TKernelEvent aEvent, TAny* a1, TAny* a2, TAny* aThis);
+    TUint HandleEvent(TKernelEvent aType, TAny* a1, TAny* a2);
+    // handle chunk activity
+    TBool HandleAddChunk(DChunk* aChunk);
+    TBool HandleUpdateChunk(DChunk* aChunk);
+    TBool HandleDeleteChunk(DChunk* aChunk);
+    // handle chunk activity
+    TBool HandleAddThread(DThread* aThread);
+    TBool HandleUpdateThread(DThread* aThread);
+    TBool HandleDeleteThread(DThread* aThread);
+    // handle chunk activity
+    TBool HandleAddProcess(DProcess* aProcess);
+    TBool HandleUpdateProcess(DProcess* aProcess);
+    TBool HandleDeleteProcess(DProcess* aProcess);
+    // handle library activity
+    TBool HandleAddLibrary(DLibrary* aLibrary, DThread* aThread);
+    TBool HandleDeleteLibrary(DLibrary* aLibrary);
+    
+    // data handling
+    TInt AddHeader();
+    TInt AddFooter();
+    TInt EncodeTotalMemory();
+    TInt EncodeNameCode();
+    TInt EncodeNewCode();
+    TInt EncodeUpdateCode();
+    TInt EncodeRemoveCode();
+    TInt EncodeChunkName(DThread& t);
+    TInt EncodeChunkName(DChunk& c);
+    TInt EncodeChunkName(DLibrary& l);
+    TInt EncodeChunkData(DThread& t);
+    TInt EncodeChunkData(DChunk& c);
+    TInt EncodeChunkData(DLibrary& l, DThread& t);
+private:
+    /** Lock serialising calls to event handler */
+    DMutex* iLock;
+    TBool iTracking;
+
+    DProfilerSampleBuffer*  iSampleBuffer;
+    TInt iCounters[EEventLimit];
+    
+    TUint32     iCount;
+    
+    TUint8      iSample[KEventBufferSize];
+    TPtr8       iSampleDescriptor;
+    
+    TUint32     iPreviousCount;
+    };
+
+#endif