/*

* 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:   ?Description

*

*/

#include <glxperformancelog.h>

#define GLX_LOG_PRINT_ITERATION 20

QFile GlxPerformanceLog::mLogFile;

qint16 GlxPerformanceLog::mObjectCounter = 0;

GlxPerformanceLog::GlxPerformanceLog(char *str) : mSpendTime(0), mTotalTime(0), mIteration(0), mInfoMsg (str)

{ 

    mTime.start();

    ++mObjectCounter;

    if( GlxPerformanceLog::mLogFile.isOpen() == FALSE) {

	    GlxPerformanceLog::mLogFile.setFileName("glxperlog.txt");

	    QDir::setCurrent("c:\\data\\");

	    GlxPerformanceLog::mLogFile.open(QIODevice::Append);

	    GlxPerformanceLog::mLogFile.setTextModeEnabled(TRUE);

    }

}

void GlxPerformanceLog::start()

{

    mTime.restart();

}

void GlxPerformanceLog::stop()

{

    mSpendTime = mTime.elapsed();

    mTotalTime += mSpendTime;

    ++mIteration;

    if ( (mIteration % GLX_LOG_PRINT_ITERATION )== 1) {

        appendPerformanceLog();

    }

}

void GlxPerformanceLog::end()

{

    appendPerformanceLog();

    mSpendTime = mTotalTime = mIteration = 0;

}

void GlxPerformanceLog::done(char *msg )

{

    mSpendTime = mTime.elapsed();

    mTotalTime += mSpendTime;

    ++mIteration;

    appendPerformanceLog(msg);

    mSpendTime = mTotalTime = mIteration = 0;

}

qreal GlxPerformanceLog::getAverageTime()

{

    if( mIteration == 0) {

        return -1;

    }

    return ( (mTotalTime + 0.0) / mIteration );

}

quint32 GlxPerformanceLog::getTime()

{

    return mSpendTime;

}

void GlxPerformanceLog::appendPerformanceLog(char *msg)

{

    char logText[255] = {0};

    sprintf(logText, "%s : %s last time %u : average time : %f iteration %u \n", mInfoMsg, msg, mSpendTime, getAverageTime(), mIteration);

    GlxPerformanceLog::mLogFile.write(logText);

}

void GlxPerformanceLog::appendTimeStamp(char *msg)

{

    char logText[255] = {0};

    QTime t = QTime::currentTime();

    sprintf(logText, "%s : Time Stamp %d:%d:%d:%d \n", msg, t.hour(), t.minute(), t.second(), t.msec());

    GlxPerformanceLog::mLogFile.write(logText);

}

GlxPerformanceLog::~GlxPerformanceLog()

{

    --mObjectCounter;

    if ( mObjectCounter == 0) {

        GlxPerformanceLog::mLogFile.close();

    }

}