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:   ?Description

    15 *

    16 */

    17 

    18 #include <glxperformancelog.h>

    19 

    20 #define GLX_LOG_PRINT_ITERATION 20

    21 QFile GlxPerformanceLog::mLogFile;

    22 qint16 GlxPerformanceLog::mObjectCounter = 0;

    23 

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

    25 { 

    26     mTime.start();

    27     ++mObjectCounter;

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

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

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

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

    32 	    GlxPerformanceLog::mLogFile.setTextModeEnabled(TRUE);

    33     }

    34 }

    35 

    36 void GlxPerformanceLog::start()

    37 {

    38     mTime.restart();

    39 }

    40 

    41 void GlxPerformanceLog::stop()

    42 {

    43     mSpendTime = mTime.elapsed();

    44     mTotalTime += mSpendTime;

    45     ++mIteration;

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

    47         appendPerformanceLog();

    48     }

    49 }

    50 

    51 void GlxPerformanceLog::end()

    52 {

    53     appendPerformanceLog();

    54     mSpendTime = mTotalTime = mIteration = 0;

    55 }

    56 

    57 void GlxPerformanceLog::done(char *msg )

    58 {

    59     mSpendTime = mTime.elapsed();

    60     mTotalTime += mSpendTime;

    61     ++mIteration;

    62     appendPerformanceLog(msg);

    63     mSpendTime = mTotalTime = mIteration = 0;

    64 }

    65 

    66 qreal GlxPerformanceLog::getAverageTime()

    67 {

    68     if( mIteration == 0) {

    69         return -1;

    70     }

    71     return ( (mTotalTime + 0.0) / mIteration );

    72 }

    73 

    74 quint32 GlxPerformanceLog::getTime()

    75 {

    76     return mSpendTime;

    77 }

    78 

    79 void GlxPerformanceLog::appendPerformanceLog(char *msg)

    80 {

    81     char logText[255] = {0};

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

    83     GlxPerformanceLog::mLogFile.write(logText);

    84 }

    85 

    86 void GlxPerformanceLog::appendTimeStamp(char *msg)

    87 {

    88     char logText[255] = {0};

    89     QTime t = QTime::currentTime();

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

    91     GlxPerformanceLog::mLogFile.write(logText);

    92 }

    93 

    94 GlxPerformanceLog::~GlxPerformanceLog()

    95 {

    96     --mObjectCounter;

    97     if ( mObjectCounter == 0) {

    98         GlxPerformanceLog::mLogFile.close();

    99     }

   100 }

   101 

   102 

   103