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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#ifndef _TimeSource_H_
#define _TimeSource_H_
#include "../api.h"
#ifdef __APPLE__
#include <mach/mach_time.h>
#endif
namespace avg {
// This class is a monotonic time source with an undefined start time. Time is guarranteed
// to increase monotonically. The time source has no jumps and does not go backwards,
// even if system time is changed.
class AVG_API TimeSource {
public:
static TimeSource* get();
virtual ~TimeSource();
long long getCurrentMillisecs();
long long getCurrentMicrosecs();
void sleepUntil(long long targetTime);
private:
TimeSource();
#ifdef __APPLE__
mach_timebase_info_data_t m_TimebaseInfo;
#endif
static TimeSource* m_pTimeSource;
};
void AVG_API msleep(int millisecs);
}
#endif
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