You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.2 KiB
48 lines
1.2 KiB
/*
|
|
* Copyright (c) 2016 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 TEST_DRIFTING_CLOCK_H_
|
|
#define TEST_DRIFTING_CLOCK_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "system_wrappers/include/clock.h"
|
|
#include "system_wrappers/include/ntp_time.h"
|
|
|
|
namespace webrtc {
|
|
namespace test {
|
|
class DriftingClock : public Clock {
|
|
public:
|
|
static constexpr float kNoDrift = 1.0f;
|
|
|
|
DriftingClock(Clock* clock, float speed);
|
|
|
|
static constexpr float PercentsFaster(float percent) {
|
|
return 1.0f + percent / 100.0f;
|
|
}
|
|
static constexpr float PercentsSlower(float percent) {
|
|
return 1.0f - percent / 100.0f;
|
|
}
|
|
|
|
Timestamp CurrentTime() override;
|
|
NtpTime CurrentNtpTime() override;
|
|
int64_t CurrentNtpInMilliseconds() override;
|
|
|
|
private:
|
|
TimeDelta Drift() const;
|
|
|
|
Clock* const clock_;
|
|
const float drift_;
|
|
const Timestamp start_time_;
|
|
};
|
|
} // namespace test
|
|
} // namespace webrtc
|
|
|
|
#endif // TEST_DRIFTING_CLOCK_H_
|