/*

* Copyright (c) 2003-2009 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: 

*

*/

#include "tprimegenperformance.h"

#include "t_input.h"

#include "t_output.h"

#include <bigint.h>

_LIT(KPrimeGenFormat, "\tPrime Generation Time: %f us/iteration (%i iterations in %f us)\r\n");

const TUint KMaxIterations=100;

CTestAction* CPrimeGenPerformance::NewL(RFs& aFs, CConsoleBase& aConsole, 

	Output& aOut, const TTestActionSpec& aTestActionSpec)

	{

	CTestAction* self = CPrimeGenPerformance::NewLC(aFs, aConsole,

		aOut, aTestActionSpec);

	CleanupStack::Pop();

	return self;

	}

CTestAction* CPrimeGenPerformance::NewLC(RFs& aFs, CConsoleBase& aConsole, 

	Output& aOut, const TTestActionSpec& aTestActionSpec)

	{

	CPrimeGenPerformance* self = new(ELeave) CPrimeGenPerformance(aFs, aConsole, aOut);

	CleanupStack::PushL(self);

	self->ConstructL(aTestActionSpec);

	return self;

	}

CPrimeGenPerformance::~CPrimeGenPerformance()

	{

	delete iBody;

	}

CPrimeGenPerformance::CPrimeGenPerformance(RFs& aFs, CConsoleBase& aConsole, 

	Output& aOut) : CTestAction(aConsole, aOut), iFs(aFs)

	{

	}

void CPrimeGenPerformance::ConstructL(const TTestActionSpec& aTestActionSpec)

	{

	CTestAction::ConstructL(aTestActionSpec);

	iBody = HBufC8::NewL(aTestActionSpec.iActionBody.Length());

	iBody->Des().Copy(aTestActionSpec.iActionBody);

	iBits = Input::ParseIntElement(*iBody, _L8("<bits>"), _L8("</bits>"));

	iIterations = Input::ParseIntElement(*iBody, _L8("<iterations>"), _L8("</iterations>"));	

	__ASSERT_ALWAYS(iIterations < KMaxIterations, User::Panic(_L("Iterations too large"), 1));

	}

void CPrimeGenPerformance::DoPerformPrerequisite(TRequestStatus& aStatus)

	{

	TRequestStatus* status = &aStatus;

	User::RequestComplete(status, KErrNone);

	iActionState = CTestAction::EAction;

	}

void CPrimeGenPerformance::DoPerformPostrequisite(TRequestStatus& aStatus)

	{

	TRequestStatus* status = &aStatus;

	iFinished = ETrue;

	User::RequestComplete(status, KErrNone);

	}

void CPrimeGenPerformance::DoReportAction(void)

	{

	}

void CPrimeGenPerformance::DoCheckResult(TInt)

	{

	}

void CPrimeGenPerformance::PerformAction(TRequestStatus& aStatus)

	{

	__UHEAP_MARK;

	TRequestStatus* status = &aStatus;

	TTime start, end;

	TTimeIntervalSeconds diff(0);

	const TTimeIntervalSeconds iterationTime(iIterations);

	TUint iterations=0;

	RInteger prime;

	start.UniversalTime();

	while (diff < iterationTime)

		{

		prime = RInteger::NewPrimeL(iBits, TInteger::ETopBitSet);

		prime.Close();

		iterations++;

		end.UniversalTime();

		end.SecondsFrom(start, diff);

		}

	end.UniversalTime();

	TTimeIntervalMicroSeconds time = end.MicroSecondsFrom(start);

	TReal rate = I64REAL(time.Int64()) / iterations;

    TReal rtime = I64REAL(time.Int64());

	HBufC* realbuf = HBufC::NewLC(128);

	TPtr buf = realbuf->Des();

	buf.Format(KPrimeGenFormat, rate, iterations, rtime);

	iOut.writeString(buf);

	iConsole.Printf(_L("."));

	CleanupStack::PopAndDestroy(realbuf);

	User::RequestComplete(status, KErrNone);

	iActionState = CTestAction::EPostrequisite;

	iResult = ETrue;

	__UHEAP_MARKEND;

	}