debugtimer.h

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/********************************************************************************************
**    iLand - an individual based forest landscape and disturbance model
**    http://iland-model.org
**    Copyright (C) 2009-  Werner Rammer, Rupert Seidl
**
**    This program is free software: you can redistribute it and/or modify
**    it under the terms of the GNU General Public License as published by
**    the Free Software Foundation, either version 3 of the License, or
**    (at your option) any later version.
**
**    This program is distributed in the hope that it will be useful,
**    but WITHOUT ANY WARRANTY; without even the implied warranty of
**    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
**    GNU General Public License for more details.
**
**    You should have received a copy of the GNU General Public License
**    along with this program.  If not, see <http://www.gnu.org/licenses/>.
********************************************************************************************/
#ifndef DEBUGTIMER_H
#define DEBUGTIMER_H
#include "ticktack.h"
#include <QAtomicInt>
 
class DebugTimer
{
public:
    DebugTimer() { m_hideShort=false; m_silent=false; start();  ++m_count; }
    DebugTimer(const QString &caption, bool silent=false);
    void setSilent() { m_silent=true; }
    void setHideShort(bool hide_short_messages) { m_hideShort = hide_short_messages; }
    ~DebugTimer();
    void showElapsed();
    double elapsed(); // elapsed time in milliseconds
    void start();
    void interval(const QString &text);
    static void clearAllTimers();
    static void printAllTimers();
    static QString timeStr(double value_ms, bool exact=true);
    static void setResponsiveMode(bool mode) { m_responsive_mode = mode; }
    static bool responsiveMode()  { return m_responsive_mode; }
private:
    static QHash<QString, double> mTimingList;
    static bool m_responsive_mode;
    static qint64 ms_since_epoch; // milliseconds since epoch for the first call
    TickTack t;
    bool m_hideShort; // if true, hide messages for short operations (except an explicit call to showElapsed())
    bool m_shown;
    bool m_silent;
    QString m_caption;
    QAtomicInt m_count; // counts how many DebugTimer are currently alive
};
 
#endif // DEBUGTIMER_H