author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 27 May 2010 14:26:55 +0300 | |
changeset 22 | a009639409f5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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#ifndef PROFILER_MEM_SAMPLER_H |
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#define PROFILER_MEM_SAMPLER_H |
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#include "GeneralsConfig.h" |
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#include <kern_priv.h> |
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#include <piprofiler/ProfilerGenericClassesKrn.h> |
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#include <piprofiler/ProfilerTraces.h> |
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#include "GppSamplerImpl.h" |
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#include "MemoryEventHandler.h" |
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#include <e32btrace.h> |
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// constants |
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// defines the maximum thread amount that is assumed to |
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// be possible with MEM trace |
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const TInt KSampleBufferSize = 257; |
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const TInt KProfilerMaxThreadsAmount = 512; |
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const TInt KProfilerMaxChunksAmount = 1024; |
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const TInt KProfilerMaxLibrariesAmount = 1024; |
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const TInt KProfilerTotalMemorySamplePeriod = 100; |
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// flags |
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#define MEM_EVENT_HANDLER |
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//#define MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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/* |
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* |
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* MEM sampler definition |
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* |
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*/ |
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class DMemoryEventHandler; |
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class DMemSamplerImpl //: public DBase |
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{ |
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public: |
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enum EProcessingState |
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{ |
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EStartingToProcess, |
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EProcessingNames, |
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EProcessingData, |
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ENothingToProcess |
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}; |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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enum ESampleType |
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{ |
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ESampleChunks, |
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ESampleThreads, |
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ESampleLibraries |
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}; |
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#endif |
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DMemSamplerImpl(); |
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~DMemSamplerImpl(); |
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TInt CreateFirstSample(); |
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TInt SampleImpl(); |
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TBool SampleNeeded(); |
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void Reset(); |
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TInt ProcessChunks(); |
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TInt ProcessThreads(); |
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TInt GatherChunks(); |
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TInt GatherThreads(); |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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TInt GatherLibraries(); |
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TInt ProcessLibraries(); |
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#endif |
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TInt EncodeChunkData(DChunk& chunk); |
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TInt EncodeChunkName(DChunk& chunk); |
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TInt EncodeChunkData(DThread& thread); |
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TInt EncodeChunkName(DThread& thread); |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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TInt EncodeChunkData(DLibrary& library); |
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TInt EncodeChunkName(DLibrary& library); |
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#endif |
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TInt EncodeTotalMemoryName(); |
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TInt EncodeTotalMemory(); |
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TInt EncodeNameCode(); |
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TInt EncodeDataCode(); |
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DChunk* heapChunksToSample[KProfilerMaxChunksAmount]; |
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DChunk* heapChunkNamesToReport[KProfilerMaxChunksAmount]; |
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TInt iCount; |
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TInt iChunkCount; |
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TInt iNewChunkCount; |
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TBuf8<0x50> name; |
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DThread* threadsToSample[KProfilerMaxThreadsAmount]; |
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DThread* threadNamesToReport[KProfilerMaxThreadsAmount]; |
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TInt iThreadCount; |
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TInt iNewThreadCount; |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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DLibrary* librariesToSample[KProfilerMaxLibrariesAmount]; |
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DLibrary* libraryNamesToReport[KProfilerMaxLibrariesAmount]; |
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TInt iLibraryCount; |
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TInt iNewLibraryCount; |
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TInt iLibrariesProcessing; |
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#endif |
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122 |
|
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TInt iChunksProcessing; |
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TInt iThreadsProcessing; |
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TInt iMemSamplingPeriod; |
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TInt iMemSamplingPeriodDiv2; |
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TInt iMemSamplingPeriodDiv3; |
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|
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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ESampleType iSampleType; |
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#else |
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TBool iSampleThreads; |
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#endif |
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134 |
|
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TBool iTimeToSample; |
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136 |
|
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TBool iTotalMemoryOk; |
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TBool iTotalMemoryNameOk; |
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139 |
|
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TUint8 sample[KSampleBufferSize]; |
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TPtr8 sampleDescriptor; |
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|
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// test |
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#ifdef MEM_EVENT_HANDLER |
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// DMemoryEventHandler* iEventHandler; |
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TBool iChunksGathered; |
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TBool iThreadsGathered; |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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TBool iLibrariesGathered; |
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#endif |
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#endif |
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}; |
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|
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|
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template <int BufferSize> |
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class DProfilerMemSampler : public DProfilerGenericSampler<BufferSize> |
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{ |
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public: |
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DProfilerMemSampler(struct TProfilerGppSamplerData*, TInt id); |
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~DProfilerMemSampler(); |
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|
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void Sample(); |
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TInt Reset(DProfilerSampleStream* aStream, TUint32 aSyncOffset); |
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TInt PostSample(); |
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TBool PostSampleNeeded(); |
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|
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private: |
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#ifdef MEM_EVENT_HANDLER |
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DMemoryEventHandler* iEventHandler; |
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#endif |
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DMemSamplerImpl memSamplerImpl; |
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struct TProfilerGppSamplerData* gppSamplerData; |
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TBool sampleNeeded; |
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}; |
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|
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/* |
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* |
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* MEM sampler implementation |
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* |
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*/ |
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|
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template <int BufferSize> |
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DProfilerMemSampler<BufferSize>::DProfilerMemSampler(struct TProfilerGppSamplerData* gppSamplerDataIn, TInt id) : |
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DProfilerGenericSampler<BufferSize>(PROFILER_MEM_SAMPLER_ID) |
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{ |
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LOGSTRING2("DProfilerMemSampler<%d>::CProfilerMemSampler",BufferSize); |
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this->gppSamplerData = gppSamplerDataIn; |
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this->iSamplingPeriod = 3000; // set default setting |
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} |
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|
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template <int BufferSize> |
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TInt DProfilerMemSampler<BufferSize>::Reset(DProfilerSampleStream* aStream, TUint32 aSyncOffset) |
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{ |
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//#ifdef MEM_EVENT_HANDLER |
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// Kern::Printf("DProfilerMemSampler<%d>::Reset - calling superclass reset",BufferSize); |
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|
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//#endif |
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// check if reset called in stop (by driver) |
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if(aSyncOffset != 999999) |
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{ |
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DProfilerGenericSampler<BufferSize>::Reset(aStream); |
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memSamplerImpl.Reset(); |
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|
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#ifdef MEM_EVENT_HANDLER |
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// reset member variables |
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this->memSamplerImpl.iThreadsGathered = false; |
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this->memSamplerImpl.iChunksGathered = false; |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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this->memSamplerImpl.iLibrariesGathered = false; |
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#endif |
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|
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// memory event handler |
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if(iEventHandler) |
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{ |
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// stop previous sampling if still running |
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// Kern::Printf("Stopping DMemoryEventHandler"); |
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iEventHandler->Stop(); |
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iEventHandler->Close(); |
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iEventHandler = NULL; |
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} |
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221 |
|
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// Kern::Printf("Initiating DMemoryEventHandler"); |
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iEventHandler = new DMemoryEventHandler(this->iSampleBuffer); |
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if(iEventHandler) |
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225 |
{ |
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// Kern::Printf("Creating DMemoryEventHandler"); |
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TInt err(iEventHandler->Create()); |
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if(err != KErrNone) |
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229 |
{ |
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Kern::Printf("Error in creation of DMemoryEventHandler, error %d", err); |
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return err; |
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} |
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} |
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else |
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235 |
{ |
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Kern::Printf("Could not initiate DMemoryEventHandler"); |
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return KErrGeneral; |
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} |
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239 |
|
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// set first chunk&thread memory lookup at the 5 ms, should be enough |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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this->memSamplerImpl.iMemSamplingPeriod = 45; |
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#else |
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this->memSamplerImpl.iMemSamplingPeriod = 10; |
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#endif |
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246 |
|
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247 |
#else |
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this->memSamplerImpl.iMemSamplingPeriod = this->iSamplingPeriod; |
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#endif |
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this->memSamplerImpl.iMemSamplingPeriodDiv2 = (TInt)(this->memSamplerImpl.iMemSamplingPeriod / 2); |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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this->memSamplerImpl.iMemSamplingPeriodDiv3 = (TInt)(this->memSamplerImpl.iMemSamplingPeriod / 3); |
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#endif |
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254 |
|
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LOGSTRING3("CProfilerMemSampler<%d>::Reset - set mem sampling period to %d", |
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BufferSize,this->memSamplerImpl.iMemSamplingPeriod); |
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} |
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258 |
else |
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259 |
{ |
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LOGSTRING2("DProfilerMemSampler<%d>::Reset - reset in stop", BufferSize); |
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#ifdef MEM_EVENT_HANDLER |
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// destroy memory event handler |
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if(iEventHandler) |
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264 |
{ |
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// stop previous sampling if still running |
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// Kern::Printf("Stopping DMemoryEventHandler"); |
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iEventHandler->Stop(); |
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iEventHandler->Close(); |
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iEventHandler = NULL; |
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} |
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#endif |
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return KErrNone; // return if reset called in stop |
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} |
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274 |
|
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// add MEM sample header |
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TInt length(memSamplerImpl.CreateFirstSample()); |
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this->iSampleBuffer->AddSample(memSamplerImpl.sample,length); |
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278 |
|
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this->sampleNeeded = false; |
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LOGSTRING("DProfilerMemSampler::Reset - exit"); |
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return KErrNone; |
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} |
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283 |
|
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template <int BufferSize> |
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TInt DProfilerMemSampler<BufferSize>::PostSample() |
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286 |
{ |
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this->sampleNeeded = false; |
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288 |
|
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LOGSTRING3("DProfilerMemSampler<%d>::PostSample - state %d",BufferSize,this->iSampleBuffer->GetBufferStatus()); |
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290 |
|
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291 |
#ifdef MEM_EVENT_HANDLER |
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// check if all threads and chunks (and libraries) are gathered |
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#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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if(!memSamplerImpl.iThreadsGathered || !memSamplerImpl.iChunksGathered || !memSamplerImpl.iLibrariesGathered) |
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#else |
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if(!memSamplerImpl.iThreadsGathered || !memSamplerImpl.iChunksGathered) |
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297 |
#endif |
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298 |
{ |
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299 |
#endif |
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// disable interrupts for checking the kernel containers (EChunk, EThread) |
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// TInt interruptLevel(NKern::DisableInterrupts(0)); |
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302 |
|
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// first collect chunk data |
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304 |
TInt length(this->memSamplerImpl.SampleImpl()); |
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if(length != 0) |
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306 |
{ |
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307 |
// then, encode the sample to the buffer until no further data available |
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while(length > 0) |
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309 |
{ |
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310 |
this->iSampleBuffer->AddSample(memSamplerImpl.sample,length); |
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length = this->memSamplerImpl.SampleImpl(); |
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312 |
|
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313 |
// indicate that the whole MEM sample ends by having a 0x00 in the end |
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314 |
if(length == 0) |
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315 |
{ |
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316 |
TUint8 number(0); |
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317 |
LOGSTRING("MEM sampler PostSample - all samples generated!"); |
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|
318 |
|
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319 |
this->iSampleBuffer->AddSample(&number,1); |
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320 |
LOGSTRING2("MEM sampler PostSample - end mark added, time: %d", gppSamplerData->sampleNumber); |
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|
321 |
} |
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322 |
} |
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323 |
} |
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324 |
// restore interrupts and continue normal execution |
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325 |
// NKern::RestoreInterrupts(interruptLevel); |
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326 |
#ifdef MEM_EVENT_HANDLER |
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327 |
} |
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328 |
// check if all threads and chunks are gathered |
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329 |
#ifdef MEM_EVENT_HANDLER_LIBRARY_EVENTS |
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if(memSamplerImpl.iThreadsGathered && memSamplerImpl.iChunksGathered && memSamplerImpl.iLibrariesGathered) |
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331 |
#else |
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332 |
if(memSamplerImpl.iThreadsGathered && memSamplerImpl.iChunksGathered) |
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333 |
#endif |
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334 |
{ |
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335 |
// start memory event tracking after checking the current memory status |
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336 |
if(!iEventHandler->Tracking()) |
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337 |
{ |
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338 |
iEventHandler->Start(); |
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// Kern::Printf("DProfilerMemSampler<%d>::PostSample - memory event handler started",BufferSize); |
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340 |
} |
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341 |
|
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342 |
} |
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343 |
#endif |
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344 |
|
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345 |
LOGSTRING2("MEM sampler PostSample - finished sampling, time: %d", gppSamplerData->sampleNumber); |
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346 |
|
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347 |
// finally perform superclass postsample |
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348 |
TInt i(this->DProfilerGenericSampler<BufferSize>::PostSample()); |
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349 |
return i; |
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350 |
} |
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|
351 |
|
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352 |
template <int BufferSize> |
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353 |
TBool DProfilerMemSampler<BufferSize>::PostSampleNeeded() |
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354 |
{ |
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355 |
LOGSTRING3("DProfilerMemSampler<%d>::PostSampleNeeded - state %d",BufferSize,this->iSampleBuffer->GetBufferStatus()); |
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|
356 |
|
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357 |
TUint32 status(this->iSampleBuffer->iBufferStatus); |
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|
358 |
|
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359 |
if(status == DProfilerSampleBuffer::BufferCopyAsap || status == DProfilerSampleBuffer::BufferFull || this->sampleNeeded == true) |
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360 |
{ |
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361 |
return true; |
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362 |
} |
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|
363 |
|
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364 |
return false; |
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365 |
} |
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|
366 |
|
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367 |
template <int BufferSize> |
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368 |
void DProfilerMemSampler<BufferSize>::Sample() |
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369 |
{ |
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370 |
LOGSTRING2("DProfilerMemSampler<%d>::Sample",BufferSize); |
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|
371 |
|
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372 |
// check if sample is needed, i.e. the sampling interval is met |
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373 |
if(memSamplerImpl.SampleNeeded()) |
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374 |
{ |
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375 |
// set the flag for post sampling |
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376 |
this->sampleNeeded = true; |
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|
377 |
|
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|
378 |
// start the MEM sample with the sample time |
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|
379 |
TUint8 number(4); // mem sampler id |
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|
380 |
this->iSampleBuffer->AddSample(&number,1); |
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|
381 |
this->iSampleBuffer->AddSample((TUint8*)&(gppSamplerData->sampleNumber),4); |
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|
382 |
|
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|
383 |
// leave the rest of the processing for PostSample() |
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|
384 |
} |
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|
385 |
|
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|
386 |
#ifdef MEM_EVENT_HANDLER |
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|
387 |
// call this to increase the time stamp |
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|
388 |
else if(iEventHandler->SampleNeeded()) |
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|
389 |
{ |
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|
390 |
// set the flag for post sampling |
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|
391 |
this->sampleNeeded = true; |
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|
392 |
} |
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|
393 |
|
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|
394 |
// // check if time stamp is divibable with |
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|
395 |
// if((memSamplerImpl.iCount % KProfilerTotalMemorySamplePeriod) == 0 && |
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|
396 |
// memSamplerImpl.iCount > 0) |
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|
397 |
// { |
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|
398 |
// // sample total memory once per 100 ms |
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|
399 |
// memSamplerImpl.EncodeTotalMemory(); |
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|
400 |
// |
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|
401 |
// // add end mark |
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|
402 |
// TUint8 number(0); |
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|
403 |
// this->iSampleBuffer->AddSample(&number,1); |
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|
404 |
// } |
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|
405 |
#endif |
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|
406 |
|
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|
407 |
LOGSTRING2("CProfilerMemSampler<%d>::Sample",BufferSize); |
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|
408 |
return; |
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|
409 |
} |
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|
410 |
|
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|
411 |
template <int BufferSize> |
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|
412 |
DProfilerMemSampler<BufferSize>::~DProfilerMemSampler() |
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|
413 |
{ |
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|
414 |
LOGSTRING2("CProfilerMemSampler<%d>::~CProfilerMemSampler",BufferSize); |
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|
415 |
#ifdef MEM_EVENT_HANDLER |
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|
416 |
// memory event handler |
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|
417 |
if(iEventHandler) |
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|
418 |
{ |
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|
419 |
// stop previous sampling if still running |
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|
420 |
// Kern::Printf("Stopping DMemoryEventHandler"); |
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Revision: 201021
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iEventHandler->Stop(); |
a009639409f5
Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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422 |
iEventHandler->Close(); |
a009639409f5
Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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423 |
iEventHandler = NULL; |
a009639409f5
Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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424 |
} |
a009639409f5
Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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425 |
#endif |
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Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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} |
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Revision: 201021
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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427 |
#endif |