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/*
* Copyright (c) 2015 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 WEBRTC_SYSTEM_WRAPPERS_INCLUDE_NTP_TIME_H_
#define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_NTP_TIME_H_
#include "webrtc/base/basictypes.h"
#include "webrtc/system_wrappers/include/clock.h"
namespace webrtc {
class NtpTime {
public:
NtpTime() : seconds_(0), fractions_(0) {}
explicit NtpTime(const Clock& clock) {
clock.CurrentNtp(seconds_, fractions_);
}
NtpTime(uint32_t seconds, uint32_t fractions)
: seconds_(seconds), fractions_(fractions) {}
NtpTime(const NtpTime&) = default;
NtpTime& operator=(const NtpTime&) = default;
void SetCurrent(const Clock& clock) {
clock.CurrentNtp(seconds_, fractions_);
}
void Set(uint32_t seconds, uint32_t fractions) {
seconds_ = seconds;
fractions_ = fractions;
}
void Reset() {
seconds_ = 0;
fractions_ = 0;
}
int64_t ToMs() const { return Clock::NtpToMs(seconds_, fractions_); }
// NTP standard (RFC1305, section 3.1) explicitly state value 0/0 is invalid.
bool Valid() const { return !(seconds_ == 0 && fractions_ == 0); }
uint32_t seconds() const { return seconds_; }
uint32_t fractions() const { return fractions_; }
private:
uint32_t seconds_;
uint32_t fractions_;
};
inline bool operator==(const NtpTime& n1, const NtpTime& n2) {
return n1.seconds() == n2.seconds() && n1.fractions() == n2.fractions();
}
inline bool operator!=(const NtpTime& n1, const NtpTime& n2) {
return !(n1 == n2);
}
} // namespace webrtc
#endif // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_NTP_TIME_H_
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