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/*
Copyright (C) 1998, 1999, 2000, 2007 John Anderson
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License
as published by the Free Software Foundation; either version 2
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 Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef timer_h
#define timer_h
#ifdef _WIN32
#include "windows.h"
#else
#include <sys/time.h>
#endif
namespace ArdourSurface {
namespace Mackie
{
/**
millisecond timer class.
*/
class Timer
{
public:
/**
start the timer running if true, or just create the
object if false.
*/
Timer( bool shouldStart = true )
{
if ( shouldStart )
start();
}
/**
Start the timer running. Return the current timestamp, in milliseconds
*/
unsigned long start()
{
_start = g_get_monotonic_time();
return _start / 1000;
}
/**
returns the number of milliseconds since start
also stops the timer running
*/
unsigned long stop()
{
_stop = g_get_monotonic_time();
return elapsed();
}
/**
returns the number of milliseconds since start
*/
unsigned long elapsed() const
{
if ( running )
{
uint64_t now = g_get_monotonic_time();
return (now - _start) / 1000;
}
else
{
return (_stop - _start) / 1000;
}
}
/**
Call stop and then start. Return the value from stop.
*/
unsigned long restart()
{
unsigned long retval = stop();
start();
return retval;
}
private:
uint64_t _start;
uint64_t _stop;
bool running;
};
} // Mackie namespace
} // ArdourSurface namespace
#endif
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