chromium/third_party/webrtc/system_wrappers/include/clock.h

/*
 *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#ifndef SYSTEM_WRAPPERS_INCLUDE_CLOCK_H_
#define SYSTEM_WRAPPERS_INCLUDE_CLOCK_H_

#include <stdint.h>

#include <atomic>
#include <memory>

#include "api/units/timestamp.h"
#include "rtc_base/system/rtc_export.h"
#include "system_wrappers/include/ntp_time.h"

namespace webrtc {

// January 1970, in NTP seconds.
const uint32_t kNtpJan1970 = …;

// Magic NTP fractional unit.
const double kMagicNtpFractionalUnit = …;

// A clock interface that allows reading of absolute and relative timestamps.
class RTC_EXPORT Clock { … };

class SimulatedClock : public Clock { … };

}  // namespace webrtc

#endif  // SYSTEM_WRAPPERS_INCLUDE_CLOCK_H_