stopwatch_example.cpp

This example shows how to measure time intervals using the StopWatch class.

/* $HEADERS
 $Id: stopwatch_example.cpp 2179 2011-06-24 09:03:24Z ahuesgen $
 */

#include <shared/stopwatch.h>
#include <QObject>

// this class will handle our performance measurement results
class Logger : public QObject
{
    Q_OBJECT
    public slots:
        void log(const QString msg, const int type);
};

void Logger::log(const QString msg, const int type)
{
    // do something with the log messages
    std::cout << msg.toStdStr() << std::endl;
}


// ...

// create a logger
Logger logger;

// create a stopwatch
vhist::StopWatch watch(&logger);

// start timing
watch.start("first performance test");
doSomeStuff();

// this call will stop the first timing sequence
watch.start("second performance test");
doOtherStuff();

// explicitly stop the last timing sequence
watch.stop();