sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @test
sl@0:  @internalComponent
sl@0: */
sl@0: 
sl@0: #include <iniparser.h>
sl@0: #include <s32file.h>
sl@0: #include <hal.h>
sl@0: #include <e32math.h>
sl@0: 
sl@0: #include "t_perfdata.h"
sl@0: #include "t_wservconsts.h"
sl@0: 
sl@0: // Strings used when writing results to file to
sl@0: // describe the values accordingly.
sl@0: // e.g. KPerfDataFrameRate = 24
sl@0: // is the calculated frame rate for the measurements taken.
sl@0: _LIT(KPerfDataTrimedMean, "KPerfDataTrimedMean");
sl@0: _LIT(KPerfDataMaxTime,    "KPerfDataMaxTime");
sl@0: _LIT(KPerfDataMinTime,    "KPerfDataMinTime");
sl@0: _LIT(KPerfDataFrameRate,  "KPerfDataFrameRate");
sl@0: 
sl@0: EXPORT_C CTPerfData*  CTPerfData::NewL()
sl@0: 	{
sl@0: 	CTPerfData* self = new(ELeave) CTPerfData();
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->Construct();
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CTPerfData::StartCounter()
sl@0: 	{
sl@0: 	iCounter = User::FastCounter();
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CTPerfData::StopCounterL()
sl@0: 	{
sl@0: 	TUint32 counter = User::FastCounter();
sl@0: 	iResults.AppendL(counter-iCounter);
sl@0: 	iCounter=counter;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void CTPerfData::WriteResultsL(const TDesC& aFileName)
sl@0: 	{
sl@0: 	AnalyseResultsL();
sl@0: 
sl@0: 	RFs myFs;
sl@0: 	User::LeaveIfError(myFs.Connect());
sl@0: 
sl@0: 	RFileWriteStream writer;
sl@0: 	writer.PushL(); // writer on cleanup stack
sl@0: 	TInt err = myFs.MkDirAll(aFileName);
sl@0: 
sl@0: 	if (err==KErrNone || err==KErrAlreadyExists)
sl@0: 		{
sl@0: 		User::LeaveIfError(writer.Replace(myFs, aFileName, EFileStreamText|EFileWrite));
sl@0: 		writer.CommitL();
sl@0: 		CleanupStack::PopAndDestroy(&writer); // writer
sl@0: 
sl@0: 		CIniData* myData=CIniData::NewL(aFileName);
sl@0: 		CleanupStack::PushL(myData);
sl@0: 
sl@0: 		TBuf<255> tempStore;
sl@0: 		_LIT(KIntData, "%d");
sl@0: 		tempStore.Format(KIntData,iTrimedMean);
sl@0: 		User::LeaveIfError(myData->AddValue(KDefaultSectionName, KPerfDataTrimedMean, tempStore));
sl@0: 		tempStore.Format(KIntData,iMaxTime);
sl@0: 		User::LeaveIfError(myData->AddValue(KDefaultSectionName, KPerfDataMaxTime, tempStore));
sl@0: 		tempStore.Format(KIntData,iMinTime);
sl@0: 		User::LeaveIfError(myData->AddValue(KDefaultSectionName, KPerfDataMinTime, tempStore));
sl@0: 		_LIT(KRealData, "%4.0f");
sl@0: 		tempStore.Format(KRealData,iFrameRate);
sl@0: 		User::LeaveIfError(myData->AddValue(KDefaultSectionName, KPerfDataFrameRate, tempStore));
sl@0: 		myData->WriteToFileL();
sl@0: 
sl@0: 		CleanupStack::PopAndDestroy(myData);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		CleanupStack::PopAndDestroy(&writer); // writer
sl@0: 		}
sl@0: 
sl@0: 	myFs.Close();
sl@0: 	}
sl@0: 
sl@0: void CTPerfData::Construct()
sl@0: 	{
sl@0: 	iResults.Reset();
sl@0: 	}
sl@0: 
sl@0: CTPerfData::~CTPerfData()
sl@0: 	{
sl@0: 	iResults.Reset();
sl@0: 	}
sl@0: 
sl@0: void CTPerfData::AnalyseResultsL()
sl@0: 	{
sl@0: 	TrimedMeanL();
sl@0: 	MaxTime();
sl@0: 	MinTime();
sl@0: 	FrameRateL();
sl@0: 	}
sl@0: 
sl@0: void CTPerfData::TrimedMeanL()
sl@0: 	{
sl@0: 	TInt64 total = 0;
sl@0: 	if (iResults.Count() <= 50)
sl@0: 		{
sl@0: 		RDebug::Print(_L("Not enough results for trimming - need more than 50, but got %d"), iResults.Count());
sl@0: 		iTrimedMean = 0;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TReal tempVar = iResults.Count() * 0.20;
sl@0: 		TInt32 twentyPercentCount = 0;
sl@0: 		User::LeaveIfError(Math::Int(twentyPercentCount, tempVar));
sl@0: 
sl@0: 
sl@0: 
sl@0: 		for (TInt count = twentyPercentCount; count < iResults.Count()-twentyPercentCount; count++)
sl@0: 			{
sl@0: 			total += iResults[count];
sl@0: 			}
sl@0: 
sl@0: 		iTrimedMean = (static_cast<TUint32>(total/(iResults.Count()-(static_cast<TInt64>(twentyPercentCount)*2))));
sl@0: 		}
sl@0: 
sl@0: 	RDebug::Print(_L("CTPerfData::TrimedMeanL - %d"), iTrimedMean);
sl@0: 	}
sl@0: 
sl@0: void CTPerfData::MaxTime()
sl@0: 	{
sl@0: 	TUint32 result = iResults[0];
sl@0: 	for(TInt i = 0; i < iResults.Count(); i++)
sl@0: 		{
sl@0: 		if(iResults[i] > result)
sl@0: 			{
sl@0: 			result = iResults[i];
sl@0: 			}
sl@0: 		}
sl@0: 	iMaxTime = result;
sl@0: 
sl@0: 	RDebug::Print(_L("CTPerfData::MaxTime - %d"), iMaxTime);
sl@0: 	}
sl@0: 
sl@0: void CTPerfData::MinTime()
sl@0: 	{
sl@0: 	TUint32 result = iResults[0];
sl@0: 	for(TInt i = 0; i < iResults.Count(); i++)
sl@0: 		{
sl@0: 		if(iResults[i] < result)
sl@0: 			{
sl@0: 			result = iResults[i];
sl@0: 			}
sl@0: 		}
sl@0: 	iMinTime = result;
sl@0: 
sl@0: 	RDebug::Print(_L("CTPerfData::MinTime - %d"), iMinTime);
sl@0: 	}
sl@0: 
sl@0: void CTPerfData::FrameRateL()
sl@0: 	{
sl@0: 	iFrameRate = 0;
sl@0: 	if (iTrimedMean==0)
sl@0: 		{
sl@0: 		TrimedMeanL();
sl@0: 		}
sl@0: 	TInt counterFreq = 1;
sl@0: 	User::LeaveIfError(HAL::Get(HALData::EFastCounterFrequency, counterFreq));
sl@0: 
sl@0: 	if (iTrimedMean)
sl@0: 		{
sl@0: 		iFrameRate = static_cast<TReal>(counterFreq)/iTrimedMean;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		User::Leave(KErrAbort);
sl@0: 		}
sl@0: 
sl@0: 	RDebug::Print(_L("CTPerfData::FrameRate - %4.0f"), iFrameRate);
sl@0: 	}