1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Event based ITT sampler skeleton copypasted from MemoryEventHandler.h

    15 *

    16 */

    17 #include "IttSamplerImpl.h"

    18 

    19 #ifndef __PI_ITT_EVENT_HANDLER__

    20 #define __PI_ITT_EVENT_HANDLER__

    21 

    22 #include <piprofiler/ProfilerGenericClassesKrn.h>

    23 

    24 // CONSTANTS

    25 const TInt KITTBufferSize = 256;

    26 

    27 class DProfilerSampleBuffer;

    28 

    29 /*

    30  * ITT event handler for listaning kernel events 

    31  */

    32 class DIttEventHandler : public DKernelEventHandler

    33     {

    34 public:

    35     // constructor

    36     DIttEventHandler(DProfilerSampleBuffer*  aSampleBuffer, TProfilerGppSamplerData* aGppSamplerDataIn);

    37     TInt Create();

    38     ~DIttEventHandler();

    39     TInt Start();

    40     TInt Stop();

    41     TBool Tracking() {return iTracking;}

    42        

    43     TBool SampleNeeded();

    44     

    45 private:

    46     static TUint EventHandler(TKernelEvent aEvent, TAny* a1, TAny* a2, TAny* aThis);

    47     TUint HandleEvent(TKernelEvent aType, TAny* a1, TAny* a2);

    48     // handle code segments

    49     TBool HandleAddCodeSeg(DCodeSeg* aSeg);

    50     TBool HandleRemoveCodeSeg(DCodeSeg* aSeg);

    51 

    52 private:

    53     /** Lock serialising calls to event handler */

    54         DMutex*     iLock;

    55         TBool       iTracking;

    56         DProfilerSampleBuffer*  iSampleBuffer;

    57 

    58         TUint32     iCount;        

    59         

    60         TUint8      iSample[KITTBufferSize];

    61         TPtr8       iSampleDescriptor;

    62         TProfilerGppSamplerData*     gppSamplerData;

    63     };

    64 

    65 #endif  //__PI_ITT_EVENT_HANDLER__